Solus vs Mast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solus
This app helps you focus on one meaningful intention each day. Set a single goal in the morning, carry it with you, and reflect at the end of the day. It offers a simpler approach to productivity, free from endless tasks and pressure.
- Set one daily intention
- Morning intention setting
- Evening reflection
- Home and Lock Screen widgets
- Siri integration
- Device-only data storage
- Customizable themes
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There's always more to do. More to track, more to optimize, more to feel behind on. Solus is built on a different belief. One intention, held clearly through a single day, is worth more than a hundred tasks left half-finished. Solus is a daily intention app designed to help you focus on one meaningful thing each day. Instead of managing endless tasks, begin your morning with a single intention, carry it with you throughout the day, and end with a quiet moment of reflection. Set one intention in the morning. Live with it. Mark it complete when you're ready, or carry it forward when you're not. Every day begins fresh. Whatever happened yesterday stays there. No streaks. No history used against you. No record of the days you didn't follow through. When you're done, the moment is quiet and intentional. Not a score. Not a statistic. Just a gentle close to the day. Your intention stays with you beyond the app. Home Screen and Lock Screen widgets keep it visible without opening Solus, and it appears in StandBy while your iPhone rests on its side charging. You can ask Siri to set your intention or mark it done without touching the screen at all. Widgets follow your selected theme so your Home Screen feels consistent. Solus follows your preferred text size, so it stays comfortable to read. Everything is stored on your device. No account required. No data leaves your iPhone. Solus is free to download. The daily intention experience is completely free and always will be. If Solus has been helpful, you're welcome to buy a coffee. It's a small one-time way to say thank you. For those who want to go further, Solus Plus is available as a one-time purchase with no subscription. Solus Plus includes: • Evening Close End each day with a quiet question and a moment of reflection. • Quiet Archive Keep every intention you've ever set in one place. No scores. No color coding. No completion rates. Just a quiet record of what mattered. • Themes Five thoughtfully designed themes. Dawn and Midnight are free. Stone, Dusk, and Slate are available with Solus Plus. Solus is for anyone who has tried productivity systems and walked away exhausted. For anyone who knows what matters today but keeps losing it in the noise. One intention. One day. That's enough.
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: • Photo: snap a photo to prove you did it: gym clothes on, books open, bed made • Timer: run down a focus timer before anything unlocks • Mark done: apps stay locked until you check the task off • 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. • Powerful blocking built on Apple's Screen Time technology • Flexible schedules for study, work, sleep or a full digital detox • 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 update cadence: Mast at every 2 weeks against Solus's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Solus sells 2 one-off in-app purchases and Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Solus ships an update monthly, Mast every 2 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.
| Parameter | Solus | Mast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Calvin Ng | Thomas Bryden |
In-app purchases
Solus
- Buy a Coffee$2.99
- Solus Plus$4.99
Mast
- Mast Plus - Weekly$7.997 Days
- Mast Plus - Yearly3 Days trial$49.991 Year









