Comparison

NumbBrain vs Rotcut

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NumbBrain

Features
Read full description

Reduce screen time without deleting the apps you still need. NumbBrain helps you block distracting apps and app categories during work, study, reading, bedtime, or any focus routine you want to protect. Use NumbBrain to: - Block selected apps and app categories - Create automatic focus schedules - Set rules for weekdays, weekends, nights, or custom routines - Unlock only when you really need a short break - Review screen time stats and understand what pulls your attention NumbBrain is designed for people who want stronger app limits, fewer distractions, and a calmer phone. In-App Purchase: Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your App Store account settings. Email jiangdi0924@gmail.com Terms: https://jdi-app.notion.site/Terms-5a99ba5bf942491b8299c07221bb5f7b Privacy: https://jdi-app.notion.site/Privacy-Policy-cdb1be6b87f64c06b7dbea6ffbbad83f

About

Rotcut

This app helps you break free from mindless scrolling by introducing friction and a reward system before you can access distracting apps. Complete focus tasks to earn unlock currency and spend it to access your chosen apps for a limited time, building healthier digital habits.

Highlights
  • App blocker using Apple Screen Time
  • Earn energy points for focus tasks
  • Push-up and step counter for energy
  • Focus timer and meditation timer
  • Daily streaks and progress tracking
  • Home screen widget for energy and streak
Features
Read full description

Rotcut - Block Apps, Earn Your Screen Time Go From Mindless Scrolling to Intentional Use Your phone is designed to keep you hooked. Every spare second pulls you back into the feed, and before you know it an hour is gone. Rotcut breaks that loop. Instead of opening a distracting app on autopilot, you pause, complete a quick focus task, and earn the right to unlock it. Distraction stops being free, and your attention becomes something you choose to spend. This is not another screen time tracker that just shows you numbers and hopes you feel bad. Rotcut puts real friction and a real reward system between you and the apps that drain your day. How It Works 1) Choose the apps that steal your time, like social media, video, or games 2) Complete focus tasks to earn energy, your unlock currency 3) Spend energy to unlock blocked apps for a limited time 4) Build daily streaks, watch your stats climb, and shrink your scroll loops over time When your unlock time runs out, the block comes back on automatically. You stay in control, not the algorithm. What's Inside - App blocker: shield any apps you choose using Apple Screen Time. Your selection stays private and never leaves your device - Energy points: earn unlock currency by doing something real instead of scrolling - Push-up counter: drop and earn, with on-device motion tracking that counts your reps - Step counter: get up and move to bank energy - Lock in and focus timer: deep work sessions that reward you for staying off your phone - Meditation timer: calm down and reset - Touch grass: a nudge to step outside and reconnect with real life - Panic button: an instant reset for the moments you feel the pull hardest - Daily streaks: keep your momentum alive day after day - Personalized plan: a quick setup tailors your tasks and goals to your habits - Progress and stats: see your streak, energy earned, tasks completed, and history you can be proud of - Daily reminders: gentle nudges to keep your focus on track - Home screen widget: your energy and streak at a glance Good For 1) Reducing compulsive social media use 2) Breaking doomscrolling and short video habits 3) Building more intentional, mindful screen time 4) Staying focused on work, study, or the people in front of you 5) Creating friction before distraction takes over Why Rotcut Is Different Most apps try to block you and hope willpower does the rest. Rotcut gives you a system. You earn your access, you feel the trade, and over time the habit loop weakens. You still have to do the work, but Rotcut gives you the structure, the friction, and the motivation to actually follow through. No account or login is required to get started. Just open the app and begin. Start small. Stay consistent. Take your attention back. If you have ideas or questions, email us at hello@kopontech.com Full access requires a subscription. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NumbBrain4 screens
Rotcut4 screens

Verdict

The call

The clearest difference is update cadence: Rotcut at every 4 days against NumbBrain's every 4 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NumbBrain sells 3 in-app purchases, starting at $0.99 per month and Rotcut sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NumbBrain ships an update every 4 months, Rotcut every 4 days. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 8 level
NumbBrain versus Rotcut: the parameters behind the verdict, then further details
ParameterNumbBrainRotcut
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size14 MB75 MB
Age rating4+4+
Developer笛 姜Justine Ladlad

In-app purchases

3 purchases

NumbBrain

Subscriptions2
  • Monthly Premium$0.991 Month
  • Annual Premium14 Days trial$2.991 Year
One-time1
  • Lifetime Premium$5.99
4 purchases

Rotcut

Subscriptions3
  • RotCut Pro - Monthly$9.991 Month
  • RotCut Pro - Annual$19.991 Year
  • RotCut Pro - Annual3 Days trial$29.991 Year
One-time1
  • RotCut Pro - Lifetime$49.99

Questions

Is NumbBrain free?
NumbBrain is free to download, with in-app purchases available.
Is Rotcut free?
Rotcut is free to download, with in-app purchases available.
Do NumbBrain or Rotcut have ads?
Neither NumbBrain nor Rotcut shows ads.
Which is updated more often, NumbBrain or Rotcut?
NumbBrain ships an update every 4 months, and Rotcut every 4 days. Most recently, NumbBrain was updated on October 2, 2026 and Rotcut on October 7, 2026.

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