ChessLock vs PlanKept
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChessLock
This app helps you control screen time by blocking distracting applications. To take a break, you must solve chess puzzles, sharpening your mind and earning your pause. It's designed for anyone seeking enhanced focus and productivity with a unique, brain-boosting approach.
- Block distracting apps
- Solve chess puzzles for breaks
- Customizable focus sessions
- Brain-training puzzles
- Private by design, no data collection
- Pro version for advanced features
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Take control of your screen time like never before—with your brain as the key! Screen Time Control: ChessLock is a powerful focus tool that blocks distracting apps… and makes you earn your breaks by solving chess puzzles. Designed for those who want real productivity with a fun twist, ChessLock combines proven focus techniques with the timeless game of chess to help you stay in control. - How it works: Create a Focus Session Select the apps you want to block. Once it starts, you're locked in—no cheating allowed! Pause With Purpose Want a break? Solve a chess puzzle to unlock it. No puzzle, no pause. Train Your Brain Each puzzle challenge helps keep your mind sharp and focused. - Unlock More with ChessLock Pro Unlimited focus sessions Choose your puzzle difficulty Smarter, stronger app blocking Earn meaningful breaks More brain-boosting control - Why Chess? Chess is the perfect game to sharpen concentration, improve problem-solving, and help reset your brain during focused work. It’s not just screen time management — it’s brain time empowerment. - Private by Design No accounts, no personal data collection, no creepy tracking. Your preferences are stored locally, and analytics are completely anonymous. You stay in control. - Built for Everyone Whether you’re a student, freelancer, parent, or pro, ChessLock gives you a mindful, brain-powered way to manage your screen time. Download Screen Time Control: ChessLock and make every pause a power move.
PlanKept
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Turn goals into real action. This app is for people who do not just want to plan more, but actually follow through. You set a goal, choose when you will do it, and the app turns that plan into a real commitment with reminders, accountability, and distraction limits. When it is time to work, the app can restrict distracting parts of your phone so it is harder to avoid what you said you would do. And when you want those limits lifted, you need to check in, show proof that you took action, and convince the AI that you followed through. That creates real accountability. Not just a timer. Not just another habit tracker. A system that pushes you to do the work, explain yourself honestly, and keep moving toward the life you want. Everything is designed to stay private. The app uses local models, so your goals, check-ins, and proof conversations stay on your device instead of being sent to the cloud. For advanced users, an optional Developer Mode can show more detail about local app state, plan status, and troubleshooting information. Features: - Turn goals into scheduled commitments - Get reminders that keep your plan front and center - Limit distracting apps during focus time - Show proof of progress to unlock restrictions - Use private local AI for accountability and follow-through - Inspect advanced local state and diagnostics with optional Developer Mode Whether you want to study, train, write, build, or finally finish what you keep postponing, this app helps turn intention into reality. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: PlanKept at every 4 days against ChessLock's fortnightly. ChessLock's advantage is iOS requirement (17.0 vs 26.4). 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. ChessLock sells 5 in-app purchases, starting at $2.99 per month and PlanKept sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
ChessLock ships an update fortnightly, PlanKept every 4 days. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.
| Parameter | ChessLock | PlanKept |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 50 MB | 107 MB |
| Age rating | 4+ | 12+ |
| Developer | Patricio Guzman | Aleksander Jałtuszyk |
In-app purchases
ChessLock
- Chesslock Pro2 variants$2.991 Month
- Chesslock Pro$19.991 Year
- Chesslock Pro$29.991 Year
- Chesslock Pro$17.49
- Chesslock Pro$34.99
PlanKept
- PlanKept Starter$0.99
- PlanKept Unlock$2.99









