# NumbBrain: Screen Time Control — App blocker, limit screen time

> App blocker, limit screen time (iPhone/iPad app by 笛 姜.)

- Source: https://appshunter.io/ios/app/numbbrain-screen-time-control/id6751564003 (this page in markdown: same URL + `.md`)
- Developer: [笛 姜](https://appshunter.io/developer/1561507357)
- Category: Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 14 MB
- Languages: English, German, Japanese, Korean, Chinese, Spanish, Chinese
- Released: 2025-10-19
- Data updated: 2026-06-21
- User reviews in markdown: https://appshunter.io/ios/app/numbbrain-screen-time-control/id6751564003/reviews.md

## What is NumbBrain?

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Annual Premium | $2.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $5.99 | one-time |



## Version history (last 3 releases)

### 1.9.0 — 2026-06-18

UI remake and stats page improvements.

### 1.1 — 2026-05-20

UI remake and stats page improvements.

### 1.0 — 2025-10-20

No release notes.

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## More apps by 笛 姜

- [Castflow - A Fast Podcast App](https://appshunter.io/ios/app/castflow-a-fast-podcast-app/id1572179241)
- [Shark Shot-N in 1 Grab Picture](https://appshunter.io/ios/app/shark-shot-n-in-1-grab-picture/id1590075896)
- [RssCube - Fast News Reader](https://appshunter.io/ios/app/rsscube-fast-news-reader/id1602812291)
- [Planthunter - Growth Tracker](https://appshunter.io/ios/app/planthunter-growth-tracker/id1612833329)
- [Recharge Me -save your battery](https://appshunter.io/ios/app/recharge-me-save-your-battery/id1623561852)
- [Sudoku Infinite Challenge](https://appshunter.io/ios/app/sudoku-infinite-challenge/id1636728883)

All apps by 笛 姜: https://appshunter.io/developer/1561507357

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-21.*