Focus One vs Just One
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Focus One
Read full descriptionHide full description
Focus One is a simple focus timer for people who want to start one task, stay with it, and reduce mental clutter. Choose what you will do now, set a timer, and begin. The app keeps the screen quiet so you can return to the one thing in front of you. The settings screen lets you choose the app language, so the app can be localized to the language you select. Useful for study, work, Pomodoro-style sessions, ADHD-friendly routines, and building a visible focus record over time.
Just One
Read full descriptionHide full description
Most people fail not because they lack motivation, but because they try to do too much at once. Just One is built on a single principle: identify the one thing that would make today successful, then do it. No task lists. No projects. No overwhelm. Just one intention per day. HOW IT WORKS Every morning, you write your One Thing. One sentence. One goal. That is all. When you are ready, you start a Focus session. A clean, distraction-free timer counts down while you work. No notifications. No interruptions. Just you and your task. At the end of the day, you answer one question: did you complete it? Your streak grows with every yes. FOCUS TIMER Built-in Pomodoro-style timer from 1 to 90 minutes. Fully adjustable before each session. Vibration and local notification when your session ends, even if the app is in the background. STREAKS AND HISTORY Watch your consistency grow day by day. Your history shows every entry at a glance, with a simple record of what you set out to do and whether you did it. Every entry is yours, backed up securely to the cloud. DESIGNED TO DISAPPEAR Just One is intentionally minimal. No cluttered dashboards. No gamification traps. No badges demanding your attention. The app gets out of your way so you can do the work. Dark mode, light mode, and system-adaptive appearance. Clean typography. Generous whitespace. It feels as calm as the habit it builds. CLOUD SYNC Sign in with Apple in one tap. Your tasks and history sync automatically across all your devices. Delete and reinstall without losing a single day. PREMIUM Unlock unlimited history, advanced focus insights, and full cloud backup with Just One Premium. Available as a monthly subscription, annual subscription, or a one-time lifetime purchase. --- Just One is made for people who are serious about doing less, better. One task. One day. One streak at a time. --- LEGAL Terms of Use: https://smartaiforgesl.github.io/justone_legal_documents/terms-of-use.html Privacy Policy: https://smartaiforgesl.github.io/justone_legal_documents/privacy-policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Focus One at none against Just One's 3. Just One's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Just One sells 3 in-app purchases, starting at $1.99 per month. Focus One asks for nothing beyond the download.
| Parameter | Focus One | Just One |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | โ |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | BYNET | Diego Garcia-Viana |
In-app purchases
Focus One
No in-app purchases
Just One
- Monthly Premium Subscription$1.991 Month
- Annual Premium Subscription3 Days trial$9.991 Year
- Lifetime Premium Subscription$14.99









