# SereniBrain vs Percentage Tracker

The clearest difference is price: SereniBrain at Free against Percentage Tracker's $0.99. SereniBrain also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). Percentage Tracker's advantage is update cadence (weekly vs every 4 weeks) and chart position (#176 vs unranked). On ads and in-app purchases there is nothing between them.

SereniBrain is free to download; Percentage Tracker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SereniBrain ships an update every 4 weeks, Percentage Tracker weekly. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SereniBrain | Percentage Tracker |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/serenibrain/id6479871875/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free | — |
| Best chart rank | — | **#176** |
| Size | 345 MB | 0 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [华南脑控(广东)智能科技有限公司](https://appshunter.io/developer/1728613747) | [Steven Lamphear](https://appshunter.io/developer/1832246126) |

## What reviewers say

### SereniBrain

[App page](https://appshunter.io/ios/app/serenibrain/id6479871875)

This tool uses brain-computer interface technology to guide users through meditation scenarios. It helps individuals learn meditation techniques to achieve relaxation for both body and mind. The app provides assessments, real-time feedback, and detailed analysis reports.

**Highlights:** Meditation State Assessment, Real-time Neural Feedback, Meditation Analysis Reports, Premium Practice Content

**Features:** Vision Pro support

**In-app purchases:** none


### Percentage Tracker

[App page](https://appshunter.io/ios/app/percentage-tracker/id6749814255)

**Currently charting:** #176 Top Paid · Utilities (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SereniBrain free?

SereniBrain is free to download, with no in-app purchases.

### Is Percentage Tracker free?

Percentage Tracker costs $0.99, with no in-app purchases.

### Do SereniBrain or Percentage Tracker have ads?

Neither SereniBrain nor Percentage Tracker shows ads.

### Which is updated more often, SereniBrain or Percentage Tracker?

SereniBrain ships an update every 4 weeks, and Percentage Tracker weekly. Most recently, SereniBrain was updated on September 18, 2026 and Percentage Tracker on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*