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Tomosu

Lock your apps by default to improve your digital wellbeing

2026-03-03

Product Introduction

  1. Definition: Tomosu is an iOS digital wellness application leveraging Appleโ€™s Screen Time API to enforce system-level restrictions. It operates as a default-deny productivity tool, locking all apps and notifications until explicitly permitted via Focus Sessions.
  2. Core Value Proposition: Tomosu eliminates digital distraction guilt by reversing traditional app-blocking logic. Instead of relying on willpower, it enforces calm by default โ€” enabling deep focus, reducing screen time addiction, and rewarding intentional device usage.

Main Features

  1. 24-Hour Default Restrictions:

    • How it works: All apps, notifications, and badges are blocked system-wide using Appleโ€™s Family Controls framework. No workarounds exist, as restrictions apply at the OS level.
    • Technology: Native iOS Screen Time API integration ensures data never leaves the device, prioritizing privacy.
  2. Focus Sessions with Presets:

    • How it works: Users launch predefined sessions (e.g., Work, Study, Creative) to temporarily whitelist specific apps. Timers auto-lock non-essential apps post-session.
    • Technology: Dynamic Island and Lock Screen widgets display real-time session progress via Live Activities.
  3. SNS Challenge:

    • How it works: Opening social media triggers a "shake-to-unlock" or breathwork challenge, disrupting autopilot scrolling through intentional friction.
    • Technology: Accelerometer-based gesture detection combined with behavioral psychology principles.
  4. Coin & Theme Rewards:

    • How it works: Users earn coins for completed Focus Sessions. Longer social media use deducts coins, redeemable for aesthetic app themes.
    • Technology: Real-time coin algorithm tied to Screen Time data syncing.

Problems Solved

  1. Pain Point: Digital addiction fueled by app designs exploiting dopamine loops. Tomosu replaces willpower with systemic barriers.
  2. Target Audience:
    • Students needing exam focus
    • Knowledge workers (developers, writers)
    • ADHD users seeking structure
    • Social media overusers
  3. Use Cases:
    • Blocking TikTok/Instagram during study hours
    • Preventing Slack interruptions during deep work
    • Reducing impulsive phone checks via notification lockdown

Unique Advantages

  1. Differentiation vs Competitors: Unlike Freedom or Forest, Tomosu enforces restrictions 24/7 without manual activation. Competitors block reactively; Tomosu blocks proactively.
  2. Key Innovation: "Default-deny" architecture โ€” the only wellness app starting from full lockdown. Combines Appleโ€™s system controls with behavioral nudges (SNS Challenge) for habit reformation.

Frequently Asked Questions (FAQ)

  1. Does Tomosu work with all iOS apps?
    Yes. Tomosu restricts any app installed via Appleโ€™s Screen Time API, including browsers and social media.

  2. Can Tomosu bypass iOS limitations for app blocking?
    No workarounds exist. It uses Appleโ€™s native Family Controls for unbreakable restrictions, unlike third-party blockers.

  3. How does Tomosuโ€™s coin reward system improve focus?
    Longer Focus Sessions earn more coins; social media use deducts them. This operant conditioning incentivizes intentional usage.

  4. Is Tomosu suitable for ADHD users?
    Yes. Default restrictions reduce decision fatigue, while SNS Challenges interrupt impulsivity โ€” clinically validated for focus disorders.

  5. Does Tomosu sell user screen time data?
    Never. All data stays on-device via Appleโ€™s privacy-first API. No ads, tracking, or subscriptions.

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