Centred vs Mast
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Centred
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Centred is a productivity and wellness companion built for ADHD brains - and for anyone who finds traditional productivity apps overwhelming. At its heart is Matthew, a gentle AI assistant who helps you brain-dump the chaos, prioritise what matters, plan meals, build habits, and stay grounded through challenging days. No streaks. No shame spirals. No aggressive notifications. Just kind, considered support that meets you where you are. WHAT'S INSIDE - Brain Dump - Pour out everything on your mind. Matthew sorts the noise into tasks, ideas, and gentle reminders. - Tasks & North Star - Set a guiding goal, break it into small steps, and track progress without pressure. Your garden grows as you do. - Kitchen - Meal suggestions, shopping lists built from what you have, and one-tap hand-off to the store. Eating well shouldn't be a project. - Focus Sessions - Pomodoro-style work blocks with optional breathing breaks. Designed for minds that need rhythm, not rigidity. - Mood Check-ins - Quick check-ins with personalised advice from Matthew. Track how you actually feel, not how you should feel. - Matthew Chat - Talk through challenges, ask for advice, or just vent. Matthew listens without judgement. CENTRED PREMIUM Unlock unlimited Matthew conversations and advanced features: - Unlimited daily AI messages (free tier: 10/day) - Voice brain dump - Advanced meal planning with real recipes Monthly subscription $4.99/month, annual $39.99/year (saving 33%). Both include a 7-day free trial. Subscriptions auto-renew until cancelled - manage anytime in Settings โ Apple ID โ Subscriptions. The free plan is forever; Premium is optional. PRIVACY Your data is yours. We use Firebase Auth (Sign in with Google or Apple) and store your data privately in Firestore. We never sell your data. We never train AI models on your conversations. Full privacy policy at centred.potfiction.com/privacy. Centred is built by Potfiction, makers of small, considered apps for life's bigger moments.
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: โข Photo: snap a photo to prove you did it: gym clothes on, books open, bed made โข Timer: run down a focus timer before anything unlocks โข Mark done: apps stay locked until you check the task off โข 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. โข Powerful blocking built on Apple's Screen Time technology โข Flexible schedules for study, work, sleep or a full digital detox โข 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: Centred at none against Mast's 2. Centred also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Centred asks for nothing beyond the download.
| Parameter | Centred | Mast |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 17 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Jaco Rossouw | Thomas Bryden |
In-app purchases
Centred
No in-app purchases
Mast
- Mast Plus - Weekly$7.997 Days
- Mast Plus - Yearly3 Days trial$49.991 Year









