Privacy Policy
This policy describes how LFT Inc. handles information across its apps and this website. App-specific notes appear at the bottom of this page (or on each app's detail page).
Principles
LFT Inc. (“LFT,” “we,” “us”) respects your privacy across every app and service we ship (collectively, the “Services”). The Services are designed to use the minimum information necessary to provide their features, and to keep data on your device whenever possible.
Information we use
We collect only the minimum information needed to provide a feature. Most apps do not transmit any personally identifiable information to our servers. Where data is stored, it lives in one of the following:
- Your device’s local storage (each app’s sandbox)
- Platform-provided cloud services you opt into (Apple HealthKit, iCloud, Game Center, Google Play Games Services, etc.)
The specific types of information each app uses (camera, photos, health data, advertising identifiers, device identifiers, etc.) depend on the app’s nature. See “Per-app notes” at the bottom of this page for details.
Storage and transmission
- On-device storage: Each app’s data (settings, history, scores, analysis results, etc.) is stored only in the app’s local sandbox on your device.
- Platform services: When an app uses HealthKit, iCloud, Game Center, or Google Play Games Services, that data is governed by the respective platform’s privacy policy.
- Our servers: We do not operate our own analytics or tracking servers. The only data we receive on servers we control is what you submit through the contact form on this website.
Some apps communicate with third-party services to deliver their features (advertising networks, AI model distribution, external store links, etc.). See “Per-app notes” for specifics.
Sharing with third parties
We do not share your personal information with third parties except:
- With your consent
- Where required by law
- Where necessary to protect a person’s life, body, or property and consent cannot reasonably be obtained
When an app communicates with a third-party service, that data is governed by the respective service’s privacy policy.
Permissions
Each app requests OS-level permissions (camera, photos, HealthKit, notifications, location, etc.) only at the moment a feature requires them. You can change or revoke permissions at any time from your device’s Settings. If you decline, the affected feature will be unavailable.
Deleting data
- Where an app offers in-app controls to delete specific data, please use those.
- Removing the app from your device deletes all of that app’s local data.
- Data stored on platform services (HealthKit / Game Center / Google Play Games Services etc.) must be deleted from the corresponding platform app.
Cookies and tracking
This website (lft-farm.com) stores display preferences (your dark-mode state and your cookie-consent choice) in your browser’s storage (localStorage) rather than in cookies. This information is not sent to our servers and is not used to identify you personally. We do not set any first-party cookies of our own for these purposes; cookies are used only by the analytics described below, and only if you have consented.
Analytics (Google Analytics 4)
To understand how the site is used and to improve our content, this website uses Google Analytics 4 (GA4), an analytics service provided by Google LLC.
- Information collected: pages viewed (page views), referrer information (the linking site, search keywords, etc.), browser / OS / device type, screen size, an approximate location (country / region level) derived from your IP address, and on-site navigation and engagement. GA4 is designed not to store IP addresses, and we cannot identify any specific individual from this data.
- Purpose: analyzing traffic trends, improving content and page navigation, and detecting issues.
- Where data is sent: Google LLC (USA). The handling of collected data is governed by Google’s Privacy Policy and How Google uses information from sites or apps that use its services.
- Consent (Consent Mode): This site uses Google Consent Mode v2, and analytics cookies are disabled (denied) by default. Standard, cookie-based analytics (using a persistent identifier) becomes active only if you choose “Accept” in the consent banner shown on your first visit. If you choose “Reject,” or while you have not chosen, no analytics cookies or persistent identifiers are used and you are not tracked across visits. Even in this state, however, Google may receive cookieless, anonymous signals (minimal, non-identifying information used for aggregate estimation). Your choice is stored in your browser and persists until you clear your browser data.
- How to opt out: Choosing “Reject” in the consent banner stops cookie-based analytics. To stop GA4 analytics data being sent to Google altogether, install the Google Analytics Opt-out Browser Add-on or block requests to
googletagmanager.comandgoogle-analytics.com(where measurement data is sent) — for example, with a browser extension.
We do not serve ads, and we do not use advertising or ad-targeting tracking cookies.
Children’s privacy
The Services are not primarily directed at children under 13 (or the equivalent age set by your jurisdiction). For apps that have been rated as family-friendly or educational by the app stores, those store-level age ratings apply.
Changes to this policy
We may update this policy in response to changes in law or services. Material changes will be announced on this page or in the affected app. The updated policy takes effect when posted on this page.
Governing law
This policy is governed by the laws of Japan. The Japanese-language version is authoritative; other-language versions are provided for reference. In case of any conflict, the Japanese version prevails.
Contact
For questions about this policy or how we handle your information:
- Developer: LFT Inc.
- Address: 1-36-30 Asagaya-Minami, Suginami-ku, Tokyo, Japan
- Email: contact@lft-farm.com
- Contact form: /en/contact/
Per-app notes
Each app may collect or use different information depending on its features. The following sections describe per-app specifics that supplement the common policy above.
10-Year Diary
Open app detail →Diary data (stored on-device)
Everything you record—diary text, attached photos (up to 3 per entry on the free plan), weather, mood, star ratings, custom numeric status, and automatically recorded location—is stored locally on your device and encrypted on-device. This data is never sent to our servers. You can protect your data with Face ID / Touch ID authentication and a password lock.
On-device AI
AI features such as emotion-based auto star rating and text summarization all run on-device (Apple Foundation Models / Google Gemma 4 / Shisa.AI). Your diary content and the AI analysis results are never transmitted externally.
Location
The app can automatically record location with your diary entries. Recorded location is stored on your device. Separately, coarse, IP-based location may be collected for ad delivery (Google AdMob); see below.
Advertising & Premium plan
The free plan displays ads using Google AdMob. For ad delivery, AdMob may collect identifiers, usage data, and coarse location for third-party advertising, and diagnostics for analytics. None of it is linked to your identity, and none of it is used for tracking. Subscribing to the Premium (paid) plan removes ads. Ad content is determined by Google AdMob and is handled in accordance with Google's privacy policy (https://policies.google.com/privacy).
Exporting & deleting data
You can export your diary data as a PDF. Deleting the app removes all data stored locally.
ClearSpace
Open app detail →We collect no data
ClearSpace does not collect, store on our servers, transmit, sell, or share any personal data or usage data. The app has no analytics, no tracking, and no third-party data-collection SDKs.
Everything happens on your Mac
- All scanning, analysis, and cleanup happen locally on your device. File contents, file names, paths, and scan results never leave your Mac.
- The app runs in the macOS App Sandbox and accesses files only to find and remove reclaimable disk space. Which locations are read depends on the cleanup categories you enable, and can include system and user caches and logs; temporary files; the Trash (including the iCloud Drive Trash); the Downloads, Desktop, and Documents folders and your Photos library; installed apps in
/Applications; your~/Libraryfolders; your Home folder (for the "large old files" and "system junk" categories); and any folders you explicitly add as Custom Rules. In these locations the app does not read file contents; it works only with the file metadata (names, paths, sizes, and dates) needed to identify reclaimable space. - The scan cache and cleanup history (which include the paths and sizes of affected files) are stored only on your Mac. Any CSV export you explicitly trigger is also saved as a file on your Mac. The app never transmits any of this information.
- Deletions go to the Trash, not permanent deletion, so files remain recoverable.
- Folders you add as Custom Rules are stored on your Mac as macOS security-scoped bookmarks and are used only to re-access those folders on your device.
- Your settings and preferences (selected categories, schedule, cleanup mode, language) are stored locally on your Mac and are not shared.
Required-reason API usage
To show disk usage and identify cleanup candidates, the app uses Apple "required-reason" APIs solely on-device: disk space (to display storage), file timestamps (to display file dates, filter old/large files, and keep the scan cache current), and user defaults (to store your settings). These are used only for the app's stated functionality and are never used for tracking.
Children
ClearSpace is a general-purpose utility and is not directed at children. It collects no data from anyone, including children.
Dine & Wine
Open app detail →Camera & photo library
The app requests access to your camera and photo library so you can take or select photos of your food. Captured or selected photos are processed only on your device and are never sent to an external server.
AI processing
The app's AI features (dish recognition and wine-pairing suggestions) all run on-device. Photo data and AI analysis results are never transmitted externally.
AI model download
The first time you use the app, an AI model file (Gemma 4, provided by Google LLC) is downloaded via Hugging Face, which involves internet communication. During the download, your IP address and communication metadata are sent to Hugging Face. Hugging Face's handling of data follows its own privacy policy (https://huggingface.co/privacy). No other personal information is transmitted.
Local data
The following data is stored locally on your device. The developer does not have access to it.
- Analysis history (thumbnails of food photos, analysis results, timestamps) — up to the 50 most recent entries
- AI model files
- App settings
You can delete the analysis history and AI model files individually from the app's settings screen.
Shopping links
The app provides links to Amazon, Rakuten Ichiba, and Yahoo! Shopping as a reference for purchasing wine. These links contain affiliate IDs. The handling of data on the linked services follows each service's own privacy policy.
Third-party services
The app's main features (AI analysis and wine-pairing suggestions) are completed entirely on-device, but communication with third-party services occurs in the following cases.
- Hugging Face (when downloading the AI model): your IP address is sent
- Amazon / Rakuten Ichiba / Yahoo! Shopping (when you tap a shopping link): an external browser opens and each service's terms apply
Neon Nexus
Open app detail →Advertising information
The app displays ads using Google AdMob. AdMob may automatically collect the following information for ad delivery.
- Advertising identifier (IDFA / Google Advertising ID)
- Device information (model, OS version, etc.)
- IP address (used to estimate approximate location)
For details, see Google's privacy policy (https://policies.google.com/privacy).
Leaderboards
The app provides leaderboard features using Game Center (iOS) and Google Play Games Services (Android). Leaderboard score data is managed through each platform's services.
Game data
Your game progress and scores are stored locally on your device. The developer does not have access to this data.
Third-party services
To the extent necessary to provide the advertising and leaderboard features above, information is sent to the following third-party services.
- Google LLC (AdMob, Google Play Games Services)
- Apple Inc. (Game Center)
We do not provide personal information to any third parties other than these.
Speed Test Reflexes
Open app detail →Collection of personal information
This app does not collect any personal information. Your reflex measurement results (scores for Normal, Light, Sound, Vibration, 9-Button, 16-Button, 25-Button, and VS modes) are all stored only on your device. This data is never sent to an external server.
Specifically, the app does not collect the following information.
- Personally identifiable information such as your name or email address
- Location data
- Device identifiers
- Usage analytics data
The app also does not use any advertising networks or third-party analytics SDKs.
Squid Shooting
Open app detail →In builds where advertising is enabled, this app (Squid Shooting) uses the Google Mobile Ads SDK. In that case, device identifiers, usage data, and approximate location may be collected and shared by ad providers for ad delivery, measurement, and fraud prevention. Builds without an ad unit ID configured do not display ads.
Game play data (progress, scores, and the like) is stored on your device and is never sent to LFT's servers. Only when you use Game Center are scores and similar data handled through Apple's Game Center (use is optional).
Ojisan Match
Open app detail →On-device trivia generation
The "today's anniversary" trivia that Ojisan Match shows after each game is generated entirely on-device using Apple Intelligence (FoundationModels). The inputs used for generation, and the generated results, are never transmitted to external servers.
Information collected for advertising
This app is offered for free and displays ads via Google AdMob. When the consent prompt is shown at launch and when ads are displayed, communication occurs through the UMP (User Messaging Platform), and the following information may be collected through AdMob. None of this information is linked to your identity, and none of it is used for tracking (App Tracking Transparency): this app does not adopt ATT and does not perform cross-site / cross-app tracking via the IDFA.
- Identifiers (device ID, etc.) — for third-party advertising
- Usage data (ad interactions, product interactions) — for third-party advertising
- Location (coarse, IP-based) — for third-party advertising
- Diagnostics (performance, crashes, etc.) — for analytics
Collected data is handled in accordance with the respective privacy policies of Google and the UMP. You can change your advertising consent settings at any time from within the app or in your device settings.
MyPiece
Open app detail →LFT FARM ("we") sets out below how user information is handled in the iOS app "MyPiece" (Japanese name: おもいでマイピース; the "App").
How your photos are handled (our core principle)
- The App processes the photos you select only on your device to create artwork and generate puzzles.
- Your photos and the converted results are never sent to our servers or anywhere else.
- Access to your photo library is limited to (1) reading a photo you select, (2) reading your library to pick one random photo for "surprise me," and (3) adding a finished artwork when you save it. In all cases photos are only read on your device and are never sent anywhere.
- Puzzles you create are stored only in on-device storage and are removed when you delete the App.
Advertising and tracking
- The App displays banner ads via Google AdMob.
- For ad delivery, AdMob (Google Mobile Ads SDK) may collect advertising identifiers (IDFA / advertising ID), IP address, and device/diagnostic information. See Google's Privacy Policy and How Google uses information from ads for details.
- On iOS, an App Tracking Transparency (ATT) prompt is shown. You can use all features even if you decline, in which case ads are non-personalized (no tracking).
Information we collect
- We ourselves do not operate any server that collects or stores your personal information, photos, or usage data.
- The App has no account registration.
- However, for ad delivery, AdMob (Google) collects advertising identifiers, usage data, and diagnostic data. Accordingly, the App Store "App Privacy" label corresponds to "Data Collected" (identifiers, usage data, etc.).
On-device AI
- Subject recognition, difficulty suggestions, puzzle titling, and completion effects are performed by on-device AI (Gemma 4) running entirely on your device. AI features are optional, and you can play puzzles normally without enabling them.
- All AI processing is completed entirely on your device. The inputs (your photos) and generated results used by the AI are never sent to any external server, including our own.
- The App does not send or share your photos or any personal data with any third-party AI service, including cloud-based AI services such as OpenAI, Google, or Anthropic. The AI used for subject recognition calls no external API and runs solely on your device.
AI model download (optional)
Only if you enable AI features (such as subject recognition) does the App download (receive) the AI model file (Gemma 4, provided by Google LLC) from Hugging Face to your device (you can also choose "Later" during onboarding). This transfer receives the AI model onto your device; it does not upload your photos or personal data. This download requires an internet connection, and your IP address and connection metadata are sent to Hugging Face. Hugging Face's handling of this data follows its privacy policy (https://huggingface.co/privacy). No other personal information or photos are sent. You can use the App without downloading the model, and once downloaded, AI processing runs offline.
Contact
- Questions about this policy: contact@lft-farm.com
Revisions
- If we revise this policy, we will announce it on this page.
Effective date: June 14, 2026
Marumaru Sort
Open app detail →Data the app collects and uses
Photo library (optional, processed on-device)
To let you set your own photos on original balls, the app requests access to your photo library. Selected images are processed only on your device to display the balls and are never sent to our servers or to third parties. If you do not use this feature, photo library access is not required.
Microphone (optional, processed on-device)
To let you set your own voice on original balls, the app requests access to your microphone. Recorded audio is processed only on your device for ball playback and is never sent to our servers or to third parties. If you do not use this feature, microphone access is not required.
You can change these permissions at any time from the iOS Settings app.
Gameplay data
Stage progress, settings, and the original ball data you create are stored only on your device. We do not send or back up this data to our servers.
Advertising (Google AdMob)
The app uses Google AdMob to deliver banner and rewarded ads. AdMob may collect the advertising identifier (IDFA), IP address, approximate location, and similar information for ad delivery. For details and opt-out methods, see Google's advertising policies.
Sharing with third parties
We do not provide your gameplay data, photos, or audio to third parties. Advertising-related data handled by Google AdMob follows AdMob's policies.
Contact
If you have any questions, please contact us at contact@lft-farm.com.
FatBurn Watch
Open app detail →FatBurn Watch is an Apple Watch + iOS companion app that helps you stay in the fat-burning zone (60–70% of HRmax) while exercising. It is not a medical device and is not intended for diagnosis, treatment or prevention.
HealthKit data
The app requests HealthKit access for the following:
- Read heart rate (for real-time zone judgement and alerts)
- Save workouts (to record exercise sessions)
This data lives only in your device's local storage and Apple HealthKit.
In-app settings
The following user-configured settings are stored on-device and synced with Apple Watch:
- Age, sex, weight
- HRmax (maximum heart rate)
- Target zone bounds
- Alert sensitivity (haptic / sound)
Storage & transmission
- Heart rate & workouts: stored only on-device and in Apple HealthKit
- In-app settings (profile, alert sensitivity etc.): stored only in the app's local storage
The app does not transmit this information to any external server. No advertising, tracking, or third-party analytics SDKs are used.
Third-party sharing
The app does not share personal information with third parties. HealthKit-stored data is governed by Apple's privacy policy.
Permissions & deletion
The app requests HealthKit permission to read heart rate and save workouts. You can change permission any time from the iOS Health app or Settings. Without permission, the app's main features are unavailable.
Delete workouts from the iOS Health app individually, or remove the app from your device to wipe in-app settings.
Links
- Contact form: /en/contact/
Corporate Slave Solitaire
Open app detail →Advertising information
The app is offered for free and displays ads using Google AdMob. AdMob may collect the following information for ad delivery. None of it is linked to your identity, and none of it is used for tracking (App Tracking Transparency).
- Identifiers (device ID, etc.) — for third-party advertising
- Usage data (ad interactions, etc.) — for third-party advertising
- Diagnostics (performance, crashes, etc.) — for app functionality
Ad content is determined by the ad delivery service (Google AdMob), and the developer does not directly control it. Collected data is handled in accordance with Google's privacy policy (https://policies.google.com/privacy).
Leaderboard (Game Center)
The app provides a world ranking feature through Apple's Game Center. Score data such as your clear times is managed through Game Center. Use of this feature is optional.
Game data
Your stage progress, scores, overtime points, and settings are all stored locally on your device. We do not send or back up this data to our servers. Deleting the app also deletes the saved data.