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App Store Apps > Productivity > Focus Proof: Promise Yourself
Focus Proof: Promise Yourself icon

Focus Proof: Promise Yourself

2.1.3
Vinh Nguyen
0.00
0 reviews
Free

Focus Proof: Promise Yourself Screenshot 1 of 6
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Focus Proof: Promise Yourself Screenshot 6 of 6
Screenshots by Vinh Nguyen, from the the App Store listing
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AppBrain's verdict

Last updated
September 14, 2026
Size
15.7 MB
Official page on the App Store

User feedback

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Store listing

By Vinh Nguyen, from the App Store
Description by Vinh Nguyen Written by the developer, not by AppBrain. Click to read.
Every focus app measures time. Focus Proof measures whether you did what you said you would.

You don't just start a timer. First you write one line — "By the end of this, I will have _". Then you focus. And when the clock runs out, Focus Proof asks the only question that matters: did you?

FOCUS RECEIPTS Every session prints a small, beautiful, collectible receipt — your intention, your focus time, the time of day, and a KEPT or MISSED stamp. Share the ones you're proud of. Keep them all. A missed receipt is still an honest one: you showed up and told the truth.

FOLLOW-THROUGH RATE Not hours logged. Not sessions counted. The percentage of promises you kept — a number no other focus app owns, and the one you'll actually care about. Streaks count days you kept your word, not days you sat there.

BUILT FOR THE PROMISE
• Intention-first: no session starts without one
• An immersive, candle-lit timer that stays out of your way
• Wall-clock accurate — backgrounding never breaks a session
• False starts (under 2 minutes) never count against you
• Finish early when the thing is done — honesty cuts both ways

PRIVATE BY ARCHITECTURE No account. No sign-in. No analytics of our own. No server. Your intentions and receipts never leave your device — we couldn't read them if we wanted to. The free version is supported by ads — never on the question at the end, never on the receipt as it prints. Pro removes them.

FOCUS PROOF PRO — one price, forever The core experience is free and complete: unlimited sessions, the Classic receipt, your follow-through rate, streaks and 7-day stats. Pro removes the ads and adds six more receipt styles (Boarding Pass, Vintage Ticket, Vinyl Label, Polaroid, Blueprint, Telegram), five more accent colours, your live promise on the Lock Screen, in the Dynamic Island and on your Apple Watch, your golden hours, the 30-day trend and how long your sessions really run — for a single one-time purchase. No subscription, ever. An app about keeping promises doesn't rent them back to you.

Make one small promise today. Keep it. Print the proof.

Safety and technology

Found in the app by AppBrain
Price
Free
App size
15.7 MB
Content rating
Everyone

Technologies used by Focus Proof: Promise Yourself

Releases

Updates seen on the App Store
Version
2.1.3
Launched
August 2026

No changelog data

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Rankings

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About the app and developer

About Focus Proof: Promise Yourself

Focus Proof: Promise Yourself is a productivity app developed by Vinh Nguyen.

User Ratings

The app has no ratings yet.

App Information

Focus Proof: Promise Yourself is freely available from the App Store. The app size is 15.67 MB. The latest version available is 2.1.3. The last update was on September 14, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since August 2026.

Focus Proof: Promise Yourself is made and published by Vinh Nguyen. AppBrain is an independent app data site and isn't affiliated with Vinh Nguyen. The app name, icon, screenshots and description belong to Vinh Nguyen and are shown as published on the App Store.

Developer information for Vinh Nguyen

Vinh Nguyen

Address:

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