# DetoxBrain: Screen Time, Focus — App blocker for digital detox

> App blocker and screen time manager for digital detox and focus. (iPhone/iPad app by Duc Hoan Nguyen.)

- Source: https://appshunter.io/ios/app/detoxbrain-screen-time-focus/id6791557269 (this page in markdown: same URL + `.md`)
- Developer: [Duc Hoan Nguyen](https://appshunter.io/developer/1688921271)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 4.80/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 23 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 10 more
- Released: 2026-07-21
- Data updated: 2026-09-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/detoxbrain-screen-time-focus/id6791557269/reviews.md

## What is DetoxBrain?

You didn't mean to spend two hours on that app. DetoxBrain puts a moment of friction between the reflex and the scroll — and makes blocking that actually holds.

1. Block distracting apps
- Pick the apps that pull you in. DetoxBrain shields them — enforced by your phone's own system, so it works even when DetoxBrain isn't open, even offline, even after a restart.
- Multiple independent block groups: your bedtime rules don't have to fight your work rules.
- A "Fix blocking" button and self-healing shields, because a blocker that silently stops blocking is worse than no blocker.

2. Screen-time limits that fit a real life
- Daily time budgets per app, plus open-count limits — for the apps you don't spend long in, you just open forty times.
- Recurring schedules: bedtime, mornings, work hours.
- A pause and an intention prompt before you go in, with a delay that grows as the day's opens add up: 10 seconds, then 30, then a minute.
- Need in anyway? Take a timed session — 5, 10, 15 or 30 minutes — and it re-locks itself. A decision, not a slip.

3. Focus sessions
- Start a 25, 50, or custom-length session. Your blocked apps stay blocked; the timer keeps running in the background.
- Finish, and your streak grows.

4. Insights & streaks — free, all of it
- Today's total, per-app breakdown, pickups, yesterday's comparison, a 7-day chart, a calendar heatmap.
- Distraction-only mode: only the apps you chose count. Maps, music and messages don't get held against you.
- A brain-health score with real long-term progression — yesterday's discipline doesn't get erased overnight.

5. Private by default — not as a promise, as an architecture
Your usage data never leaves your device. Not "we don't look at it" — we can't. Apple's Screen Time framework confines your screen-time data to a sandbox on your phone, and we built no server that could receive it. Your app list, your blocklist, how long you spend where: all of it stays on the device. Nothing to sell, nothing to leak. No account required to use any of it.

6. Premium
The free tier is meant to be genuinely useful — full stats, three blocked apps, the friction layer, streaks, and your emergency pass are free forever. Upgrade for:
- Block as many apps as you want, organized into separate groups — and block a whole category, like Social, in one tap
- Strict mode: once a focus session starts, you can't switch it off from inside the app. Your weekly emergency pass still works, and "Remove all shields" is always there — it just takes two hours to land.
- Custom shield screens
- Detailed weekly insights

Monthly, annual (with a 7-day free trial) and lifetime plans. No full-screen ads, ever — an app about protecting your attention has no business interrupting it.

7. There's always a way out
An emergency pass, once a week. A "Reset all shields" button that's never behind a paywall. If your subscription lapses, everything you set up keeps running exactly as it was — nothing is switched off, nothing is deleted. To change it you'd come back to Premium or trim down to the free tier, but the way out is never for sale. Getting locked out of your own phone is a bug, not a feature.

Built with care by a solo developer in Hanoi. Email me — I actually reply: support@detoxbrain.web.app

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Block distracting apps with enforced system-level blocking
- Set daily time and open-count limits per app
- Recurring schedules for bedtime, work, and mornings
- Timed sessions with growing delays before app access
- Focus sessions for uninterrupted work or study
- Detailed usage insights and streaks
- Privacy-first architecture with data stored locally

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Annual | $29.99 | per year |
| Premium Monthly | $4.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Lifetime | $69.99 | one-time |
| Premium Lifetime | $119.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/detoxbrain-screen-time-focus/id6791557269/reviews.md

### 5/5 — 8148IC. Simply the best

*2026-08-05*

The features are exactly what I was looking for. Perfect match!

### 5/5 — CQF5S0. 喜欢一切

*2026-07-30*

喜欢一切

### 5/5 — AOO6PE good quality

*2026-07-26*

Good product highly recommended

### 5/5 — QHFZXA. Très utile

*2026-07-23*

Nice app very good

## Frequently asked questions about DetoxBrain

### What is DetoxBrain's core function?

DetoxBrain's core function is to help users reduce distractions by blocking specific apps and setting screen time limits. It aims to introduce friction before users access distracting applications, encouraging more mindful usage.

### How does DetoxBrain enforce app blocking?

DetoxBrain enforces app blocking using the phone's system-level Screen Time framework. This ensures that blocking remains active even when DetoxBrain is not open, offline, or after a device restart.

### What are the free features of DetoxBrain?

The free tier of DetoxBrain includes full statistics, the ability to block up to three apps, the friction layer before app access, streak tracking, and an emergency pass. These features are available permanently.

### What benefits does the Premium subscription offer?

The Premium subscription allows users to block an unlimited number of apps, organize them into groups, and block entire categories like 'Social' with a single tap. It also includes Strict Mode, custom shield screens, and detailed weekly insights.

### Does DetoxBrain have ads?

No, DetoxBrain does not have full-screen ads. The app is designed to protect user attention and does not interrupt it with advertisements.

### How does DetoxBrain handle user data privacy?

DetoxBrain is private by default, with all usage data remaining on the user's device. The app leverages Apple's Screen Time framework, which confines data to a sandbox, and has no servers to collect or sell user information. No account is required to use its features.

### What are the subscription options and trial periods for DetoxBrain?

DetoxBrain offers monthly, annual, and lifetime subscription plans. The annual plan includes a 7-day free trial, allowing users to experience the premium features before committing.

### What happens if my DetoxBrain subscription lapses?

If your subscription lapses, all your previously set up configurations, including app blocks and limits, will continue to run exactly as they were. Nothing is switched off or deleted, ensuring your digital detox setup remains intact.

## Version history (last 2 releases)

### 1.0.1 — 2026-08-02

You can now start and end a focus session from your Apple Watch — the phone can stay in another room.

Your streak and the little brain's mood are there too.

Also new:

• Stick a small tag somewhere out of the way — a drawer, the fridge, another room. A strict session can be set so that ending it early means walking over and holding your iPhone to it. Any NFC sticker works. Off unless you turn it on.
• A small panel on your Home Screen shows what's blocked, and a button in Control Center starts a session — neither needs the app open.
• Say "Hey Siri, start a DetoxBrain session." It works in Shortcuts too.
• While a session runs, the time left sits on your Lock Screen.
• Websites can be blocked now, not only apps.
• A 14-day program, one small step a day, if you'd rather ease in.
• An optional morning routine that keeps the noisier apps shut until you've properly started your day. It's called the Morning Quest.

Everything stays on this iPhone. There's no account, nothing to sign in to, and nothing about what you use, or for how long, leaves the device.

### 1.0.0 — 2026-07-21

No release notes.

## More apps by Duc Hoan Nguyen

- [CYCB : Expense Money Manager](https://appshunter.io/ios/app/cycb-expense-money-manager/id6449403916)
- [Billmate : Income Expense Note](https://appshunter.io/ios/app/billmate-income-expense-note/id6469167381)
- [UniverAI: AI Chat Assistant](https://appshunter.io/ios/app/univerai-ai-chat-assistant/id6477700131)
- [Ouat : AI Diary Journal](https://appshunter.io/ios/app/ouat-ai-diary-journal/id6670152537)
- [AI Note Taker: Voice Track App](https://appshunter.io/ios/app/ai-note-taker-voice-track-app/id6752625606)
- [Sirena: AI Character Roleplay](https://appshunter.io/ios/app/sirena-ai-character-roleplay/id6772130776)

All apps by Duc Hoan Nguyen: https://appshunter.io/developer/1688921271

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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 2026-09-05.*