OneCommit vs Mast
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
OneCommit
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Onecommit helps you build real discipline by focusing on one commitment at a time. Most habit apps are easy to ignore. Onecommit is different: you choose a single goal, commit for a fixed period, and show up every day. No clutter, no endless trackers, no fake progress. Why Onecommit works - One active commitment to keep your focus clear - Daily check-ins that keep momentum high - Visual progress board to see every completed day - Built-in accountability so skipping a day will left a mark in your tracking - Simple, clean experience designed for consistency Who itβs for Onecommit is for people who are serious about building habits that lastβfitness, meditation, learning, writing, and any goal that requires daily action. Start one commitment. Keep your streak alive. Prove it to yourself.
Mast
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Odysseus knew he couldn't resist the Sirens, so he had himself tied to the mast. Mast does the same for your phone. Screen Time limits are easy to dismiss. Mast is different: you create commitments, scheduled blocks where your distracting apps lock, and you decide up front what it takes to get them back. Your apps don't just come back when time passes. They unlock when you act. HOW IT WORKS 1. Choose the apps that steal your time: TikTok, Instagram, games, anything. 2. Schedule your commitments: study sessions, work hours, mornings, evenings. 3. Pick your unlock policy, what it takes to earn your apps back: β’ Photo: snap a photo to prove you did it: gym clothes on, books open, bed made β’ Timer: run down a focus timer before anything unlocks β’ Mark done: apps stay locked until you check the task off β’ Just wait: or simply lock yourself out for a set time WHY IT WORKS Psychologists call it a Ulysses pact: a binding decision you make now, while you're clear-headed, that your weaker future self can't undo. Willpower fails in the moment, so Mast removes the moment. When the commitment starts, the ropes are already tied. There's no "remind me in 15 minutes" to tap through, and the only way out is the one you chose yourself. β’ Powerful blocking built on Apple's Screen Time technology β’ Flexible schedules for study, work, sleep or a full digital detox β’ See the hours you've won back If you have any ideas or questions, please email us at hello@usemast.app. Terms of Use: https://usemast.app/terms
Screenshots
Verdict
The clearest difference is in-app purchases: OneCommit at none against Mast's 2. OneCommit also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Mast sells 2 in-app purchases, starting at $7.99 per 7 days. OneCommit asks for nothing beyond the download.
| Parameter | OneCommit | Mast |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 40 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Fausto Sanchez | Thomas Bryden |
In-app purchases
OneCommit
No in-app purchases
Mast
- Mast Plus - Weekly$7.997 Days
- Mast Plus - Yearly3 Days trial$49.991 Year









