# Whisper Lithium vs FJAPP

The clearest difference is iOS requirement: FJAPP at 13.0 against Whisper Lithium's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Whisper Lithium ships an update every 3 weeks, FJAPP monthly. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Whisper Lithium | FJAPP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/whisper-lithium/id6461822734/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 32 MB | 45 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [江西达伙网络科技有限公司](https://appshunter.io/developer/1234844673) | [凡己科技(苏州)有限公司](https://appshunter.io/developer/6806164722) |

## What reviewers say

### Whisper Lithium

[App page](https://appshunter.io/ios/app/whisper-lithium/id6461822734)

This app monitors and manages lithium battery systems in real-time. It displays critical battery parameters, alerts users to potential issues like over-temperature or voltage anomalies, and helps prolong battery life and enhance pack stability. It also supports viewing multiple battery statuses and offers online assistance.

**Highlights:** Real-time voltage, current, and power display, Single battery voltage and alarm status, Cell comparison and balance display, Temperature and short circuit warnings, Warning event logging, Support for multiple battery viewing, Online assistance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### FJAPP

[App page](https://appshunter.io/ios/app/fjapp/id6476473286)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Whisper Lithium free?

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

### Is FJAPP free?

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

### Do Whisper Lithium or FJAPP have ads?

Neither Whisper Lithium nor FJAPP shows ads.

### Which is updated more often, Whisper Lithium or FJAPP?

Whisper Lithium ships an update every 3 weeks, and FJAPP monthly. Most recently, Whisper Lithium was updated on November 3, 2026 and FJAPP on November 8, 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.*