SereniBrain vs Percentage Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SereniBrain
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.
- Meditation State Assessment
- Real-time Neural Feedback
- Meditation Analysis Reports
- Premium Practice Content
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"SereniBrain" is a tool that integrates brain-computer interface technology with meditation scenarios, aimed at helping more people learn meditation and relax both body and mind. App Features: Meditation State Assessment, Real-time Neural Feedback, Meditation Analysis Reports, Premium Practice Content.
Percentage Tracker
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This app allows you to keep track of multiple percentages of correct/incorrect occurrences. This app was created to fill a specific need for speech therapists, but it's not domain-specific; if you're just trying to track how often something is done correctly, this app should work. Fully open-source (MPL-2.0-licensed) and written entirely in Swift, using SwiftUI.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SereniBrain | Percentage Tracker |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (12 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | — | #176 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 345 MB | 0 MB |
| Age rating | 12+ | 4+ |
| Developer | 华南脑控(广东)智能科技有限公司 | Steven Lamphear |
In-app purchases
SereniBrain
No in-app purchases
Percentage Tracker
No in-app purchases
Questions
Is SereniBrain free?
Is Percentage Tracker free?
Do SereniBrain or Percentage Tracker have ads?
Which is updated more often, SereniBrain or Percentage Tracker?
Other comparisons
