Terms of Use

These terms govern your use of every app and service from LFT Inc., and of this website. App-specific terms (subscriptions, paid features, etc.) appear at the bottom of this page or on the app's detail page.

Last updated: 2026-05-17 LFT Inc. EN

Scope

These Terms of Use (the “Terms”) govern your use of every app and service shipped by LFT Inc. (“LFT,” “we,” “us”; collectively, the “Services”). By downloading, installing, or using the Services, you agree to these Terms. If you do not agree, please do not use the Services.

App-specific conditions (subscription terms, paid feature cancellation policies, etc.) appear under “Per-app notes” at the bottom of this page or on each app’s detail page.

License

Use of the Services is granted to you as a non-exclusive, non-transferable, revocable license under the terms of the applicable store (Apple App Store, Mac App Store, Google Play). You may not modify, reverse-engineer, decompile, or disassemble the source code, executables, or bundled data of the Services.

Prohibited conduct

You may not, in connection with the Services:

  • Violate any law or generally accepted social standards
  • Infringe on the rights of LFT, other users, or any third party
  • Interfere with the operation of the Services (unauthorized access, excessive load, automated tooling, etc.)
  • Modify, reverse-engineer, decompile, or disassemble the Services
  • Extract, duplicate, or redistribute AI models or other data bundled with the Services
  • Resell, repackage, or redistribute the Services without authorization
  • Use health-related apps for medical, diagnostic, or treatment purposes
  • Engage in conduct that harms the reputation of LFT or the Services

Disclaimer

  • The Services are provided “as is.” We make no warranties, express or implied, regarding completeness, accuracy, fitness for a particular purpose, or continuity of service.
  • Information, notifications, and recommendations from the Services are for reference only and do not constitute professional advice. Health-related apps are not medical devices and are not intended for diagnosis, treatment, or prevention of any condition.
  • To the maximum extent permitted by law, we are not liable for any direct or indirect damages arising from use or inability to use the Services.
  • We may update, modify, or discontinue the Services without prior notice.

Third-party services

The Services may interact with third-party services to deliver features (advertising networks, AI model distribution, external store links, etc.). Use of such services is governed by their respective terms. We are not responsible for issues arising in those third-party services.

Intellectual property

All rights in the Services (software, logos, designs, content, AI models, etc.) belong to LFT or the respective rights holders. These Terms do not transfer any intellectual property rights to you. Third-party software or models bundled with the Services are licensed under the terms set by their respective providers.

For paid apps or apps with subscription features, the billing terms set by the relevant store (Apple App Store, Mac App Store, Google Play) apply at the point of purchase. Refunds, cancellations, and disabling auto-renewal are handled through those stores’ policies. App-specific billing terms appear under “Per-app notes” or on each app’s store listing.

Changes to these Terms

We reserve the right to change these Terms as needed. Material changes will be announced on this page or in the affected app. Updated Terms take effect when posted on this page. Your continued use of the Services after such changes constitutes acceptance of the updated Terms.

Governing law and jurisdiction

These Terms are 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. Disputes arising in connection with the Services shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.

Contact

For questions about these Terms:

Per-app notes

Apps may have additional terms (subscriptions, paid features, app-specific prohibited acts, etc.) that supplement the common terms above.

10-Year Diary

Open app detail →
Platforms
iPhone ・ iPad
Pricing model
Free (with ads)

App-specific provisions

About advertisements

The free plan of this app displays third-party advertisements. Ad content is determined by the ad delivery service (Google AdMob), and the developer does not directly control ad content. Subscribing to the Premium (paid) plan removes ads.

About the Premium plan (subscription)

This app offers an auto-renewing monthly or yearly subscription, the "Premium plan." Subscribing removes ads and unlocks premium features.

  • Price: as shown in the app (billed via App Store / Google Play)
  • Free trial: a 30-day free trial is offered on first sign-up (availability and duration follow the store's display)
  • Auto-renewal: renews automatically at the same price unless canceled at least 24 hours before the end of the current period
  • Cancellation: cancel anytime from your App Store / Google Play subscription settings; access continues until the end of the paid period
  • Restore Purchases is supported
  • Billing and refunds are governed by the respective app store (App Store / Google Play) terms

ClearSpace

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Platforms
Mac
Pricing model
One-time purchase

Dine & Wine

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Platforms
iPhone
Pricing model
Free

App-specific provisions

AI analysis and wine-pairing disclaimer

The dish analysis results, wine-pairing suggestions, tasting notes, and similar information provided by this app are for reference only, and their accuracy or suitability is not guaranteed. The developer assumes no responsibility for purchases, transactions, or issues arising at the destinations of shopping links (Amazon, Rakuten Ichiba, Yahoo! Shopping, etc.).

Disclaimer regarding alcohol consumption

The suggestions provided by this app illustrate ways to enjoy wine as a recreational beverage. Alcohol consumption must be undertaken by users aged 20 or older, at their own responsibility.

App-specific prohibited acts

In addition to the prohibited acts in the common terms, the following are also prohibited for this app:

  • Extracting, copying, or redistributing the AI model files (Gemma 4)
AI models and licensing

The AI models used by this app (Gemma 4, provided by Google LLC) must be downloaded on first use (approximately 3.5GB–6GB). Running the AI models requires iPhone 13 or later (E2B model) or iPhone 15 Pro or later (E4B model). These models are subject to Google's Gemma Terms of Use (https://ai.google.dev/gemma/terms), and by using this app, users are deemed to have agreed to those license terms.

Neon Nexus

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Platforms
iPhone ・ Android
Pricing model
Free (with ads)

App-specific provisions

Service description

This app is a puzzle game where you place blocks on a 9×9 grid to clear lines. It provides the following features:

  • Block puzzle gameplay
  • Score recording and leaderboards (Game Center / Google Play Games Services)
  • Advertisement display
App-specific prohibited conduct

In addition to the prohibited conduct in the common terms, the following are also prohibited in this app:

  • Manipulating or falsifying scores by fraudulent means
  • Harassing other users or interfering with the leaderboard
About advertisements

This app displays third-party advertisements. Ad content is determined by the ad delivery service (Google AdMob), and the developer does not directly control ad content.

Speed Test Reflexes

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Platforms
iPhone ・ Android
Pricing model
Free (with ads)

App-specific provisions

Service description

This app is designed to measure and train your reflexes. It measures reaction speed across 8 modes (Normal, Light, Sound, Vibration, 9-button, 16-button, 25-button, VS) and stores results on your device. The app is free to use (ad-supported).

App-specific prohibited conduct

In addition to the prohibited conduct in the common terms, the following is also prohibited in this app:

  • Fraudulently manipulating the app's functions to falsify measurement results
Disclaimer regarding measurement results

Reaction-speed measurements shown in this app may contain errors due to device performance, network conditions, and other factors. Measurement results are reference values only and do not guarantee medical or scientific accuracy.

About advertisements

This app displays third-party advertisements. Ad content is determined by the ad delivery service (Google AdMob), and the developer does not directly control ad content.

About removing ads (in-app purchase)

You can permanently remove ads through a one-time in-app purchase. Once purchased, ads will no longer be shown on any device linked to the same Apple ID / Google account, and "Restore Purchases" is supported. Billing and refunds are governed by the respective app store (App Store / Google Play) terms.

Squid Shooting

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Platforms
iPhone
Pricing model
Free (with ads)

Ojisan Match

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Platforms
iPhone ・ Apple Watch
Pricing model
Free (with ads)

App-specific provisions

Use of trivia content

Trivia content provided by this app is for entertainment purposes only. Completeness and accuracy of the information are not guaranteed. It does not substitute for professional medical, legal, or financial advice.

On-device trivia generation

Trivia is generated entirely on-device via Apple Intelligence (FoundationModels). Inputs used for trivia generation and the resulting content are not transmitted to external servers.

Platforms
iPhone
Pricing model
Free (with ads)

Marumaru Sort

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Platforms
iPhone ・ iPad
Pricing model
Free (with ads)

FatBurn Watch

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Platforms
Apple Watch ・ iPhone
Pricing model
Free

App-specific provisions

Health-related app disclaimer

The information and notifications provided by this app (heart-rate zone judgments, exercise-intensity alerts, etc.) are reference information for promoting health and do not constitute medical advice, diagnosis, or treatment. This app is not a medical device and is not intended for diagnosis, treatment, or prevention. The developer disclaims liability for any damages arising from the use of this app, to the maximum extent permitted by law.

App-specific prohibited acts

In addition to the prohibited acts in the common terms, the following are also prohibited for this app:

  • Using this app for medical diagnosis or treatment purposes
  • Altering or extracting heart-rate / workout data from this app

Corporate Slave Solitaire

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Platforms
iPhone
Pricing model
Free (with ads)