# Yiku vs SystemBatteryAnalysis

The clearest difference is rating: SystemBatteryAnalysis at 4.4 against Yiku's 3.0. SystemBatteryAnalysis also leads on ratings volume (225 vs 4) and update cadence (every 6 days vs fortnightly). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Yiku sells 1 one-off in-app purchase and SystemBatteryAnalysis sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SystemBatteryAnalysis holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: SystemBatteryAnalysis has 225 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 48% of Yiku's written reviews are positive against 45% of SystemBatteryAnalysis's, so the app with the better star average is not the one people write more warmly about.

Yiku ships an update fortnightly, SystemBatteryAnalysis every 6 days. The most recent releases landed on November 4, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Yiku | SystemBatteryAnalysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/yiku/id6737256799/reviews) | **[4.4 (225 ratings)](https://appshunter.io/ios/app/systembatteryanalysis/id6752317272/reviews)** |
| Number of ratings | 4 | **225** |
| Positive reviews | **48.1% of reviews** | 45.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 180 MB | 209 MB |
| Requires iOS | **15.6** | 16.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [贝 王](https://appshunter.io/developer/1771245889) | [Zhangsan Software Co., Ltd., Enshi Prefecture, Hubei Province](https://appshunter.io/developer/1838713545) |

## What reviewers say

### Yiku

[App page](https://appshunter.io/ios/app/yiku/id6737256799)

This app offers a secure, encrypted private journaling experience with a new anonymous Q&A feature. Transform your voice for anonymous interactions and share notes securely to spark deeper connections and expression.

**Highlights:** Anonymous Q&A with voice modulation, End-to-end encrypted private notes, Secure sharing of notes and ideas, Voice transformation for anonymity, Private journaling and inspiration tool

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 489 Points | $0.99 | one-time |


### SystemBatteryAnalysis

[App page](https://appshunter.io/ios/app/systembatteryanalysis/id6752317272)

Monitor your device's battery health, track charging power, and analyze performance with detailed reports. Understand your battery's capacity, cycle times, and temperature for comprehensive system safeguarding.

**Highlights:** Real-time battery status monitoring, Device configuration query, Performance analysis and lag troubleshooting, In-depth battery life analysis, Charging power detection, Battery traceability

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro-Version | $3.99 | one-time |


## Frequently asked questions

### Is Yiku free?

Yiku is free to download, with in-app purchases available.

### Is SystemBatteryAnalysis free?

SystemBatteryAnalysis is free to download, with in-app purchases available.

### Which has better reviews, Yiku or SystemBatteryAnalysis?

SystemBatteryAnalysis is rated higher. Yiku averages 3.0 out of 5 from 4 ratings, while SystemBatteryAnalysis averages 4.4 from 225 ratings.

### Do Yiku or SystemBatteryAnalysis have ads?

Neither Yiku nor SystemBatteryAnalysis shows ads.

### Which is updated more often, Yiku or SystemBatteryAnalysis?

Yiku ships an update fortnightly, and SystemBatteryAnalysis every 6 days. Most recently, Yiku was updated on November 4, 2026 and SystemBatteryAnalysis on November 11, 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.*