Stop Doomscrolling vs NumLock
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Stop Doomscrolling
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Stop mindless scrolling . Start Earning Screen Time. Mathunlock turns your screen time into a reward β not a habit. Instead of endlessly scrolling, you earn your screen time by solving quick math challenges. Simple. Smart. Effective. How It Works Block distracting apps Solve short math problems Unlock screen time No deleting apps. No extreme restrictions. Just smarter scrolling. Why Mathunlock Works β’ Trains focus through active thinking β’ Breaks the autopilot scrolling habit β’ Builds discipline without feeling forced β’ Makes screen time intentional You donβt quit social media. You earn it. Perfect For β’ Students who want better focus β’ Professionals fighting distraction β’ Anyone tired of wasting hours scrolling β’ Parents teaching digital discipline Focus Made Friendly Our friendly mascot keeps things light and motivating β because self-improvement shouldnβt feel harsh. Private & Simple No complicated setups. No unnecessary data collection. Just you, your focus, and your earned screen time. Subscription Information Mathunlock requires a subscription to unlock all features. β’ Weekly Plan β’ Yearly Plan If youβre going to scroll, scroll with intention. Download Mathunlock today. Privacy Policy https://mathscroll-app.vercel.app/legal?tab=privacy Terms of Use https://mathscroll-app.vercel.app/legal?tab=terms
NumLock
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Your phone unlocks over 150 times a day. What if each unlock made you smarter? NumLock turns your screen time into brain time. Before you can open your blocked apps, solve a set of mental math problems. It takes seconds, keeps your mind sharp, and adds just enough friction to break the mindless scrolling habit. HOW IT WORKS Choose which apps to block. When you try to open one, NumLock presents math problems you solve on a number pad. Get them all right and your apps unlock for your chosen grace period. Simple, fast, and surprisingly satisfying. ADAPTIVE DIFFICULTY NumLock starts easy and gets harder as you improve. The 25-level system tracks your accuracy and speed, automatically adjusting to keep you challenged. Start with basic addition. Work your way up to multi-step equations, percentages, and large multiplication. You'll be amazed how fast your mental math improves. GRACE PERIODS THAT FIT YOUR LIFE After solving, your apps stay unlocked for a window you choose β 5 minutes for a quick check, 30 minutes for a balanced session, 1 hour for extended use, or until midnight for a full day off. When time's up, the lock comes back automatically. STREAKS AND STATS Build a daily streak by solving at least one session per day. Track your accuracy, average solve time, current level, and total problems solved. Watch yourself get faster and sharper over time. Your best streak is always recorded β can you beat it? DESIGNED FOR ADULTS NumLock isn't a parental control. It's a tool for people who want to take back control of their own screen time while training their brain. Think of it as a gym membership for your mind that activates every time you reach for a distraction. FEATURES β Block any app on your iPhone β Mental math challenges on a clean number pad β 25 levels of adaptive difficulty β Streak tracking with best-streak records β Accuracy and speed stats dashboard β Configurable grace periods (5 min to all day) β Light and dark mode β No ads, no data collection, fully private SUBSCRIPTION NumLock requires an active subscription to use. β Monthly: $4.99/month β Annual: $39.99/year (7-day free trial) Payment is charged to your Apple ID. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in Settings β Apple ID β Subscriptions. Terms of Use (EULA): https://apptato.github.io/numlockapp/terms.html Privacy Policy: https://apptato.github.io/numlockapp/privacy.html
Screenshots
Verdict
Stop Doomscrolling and NumLock are too close to call on the numbers: across 5 compared parameters β price, ads, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Stop Doomscrolling sells 4 in-app purchases, starting at $4.99 per 7 days and NumLock sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Stop Doomscrolling | NumLock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | β |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 20 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | Arrpit Tiwari | Peter Li |
In-app purchases
Stop Doomscrolling
- Weekly$4.997 Days
- Monthly$4.991 Month
- Yearly$24.991 Year
- Lifetime$19.99
NumLock
- NumLock Pro Monthly$4.991 Month
- NumLock Pro Annual7 Days trial$39.991 Year





