# FJAPP vs Lithium Rhino

The clearest difference is update cadence: FJAPP at monthly against Lithium Rhino's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

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

FJAPP ships an update monthly, Lithium Rhino every 10 months. The most recent releases landed on September 4, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | FJAPP | Lithium Rhino |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | — | Free |
| Size | 45 MB | 40 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [凡己科技(苏州)有限公司](https://appshunter.io/developer/6806164722) | [LITHIUM REVOLUTION LLC](https://appshunter.io/developer/1737167081) |

## What reviewers say

### FJAPP

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Lithium Rhino

[App page](https://appshunter.io/ios/app/lithium-rhino/id6479737988)

Monitor battery status, collect, and process real-time operational data. View voltage, current, power, and internal resistance. Receive cell comparisons, temperature warnings, and fault reports for enhanced battery management and performance.

**Highlights:** Real-time voltage, current, power monitoring, Battery data logging with chart timeline, Cell comparison and voltage difference display, Cell balance visualization, Temperature and fault alarms, Intelligent BMS for golf carts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FJAPP free?

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

### Is Lithium Rhino free?

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

### Do FJAPP or Lithium Rhino have ads?

Neither FJAPP nor Lithium Rhino shows ads.

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

FJAPP ships an update monthly, and Lithium Rhino every 10 months. Most recently, FJAPP was updated on September 4, 2026 and Lithium Rhino on September 12, 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.*