# ExtraPower vs AG LITHIUM

The clearest difference is update cadence: ExtraPower at every 5 weeks against AG LITHIUM's every 9 months. ExtraPower also leads on iOS requirement (8.0 vs 12.0). 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.

ExtraPower ships an update every 5 weeks, AG LITHIUM every 9 months. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ExtraPower | AG LITHIUM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 9 months |
| Monetization | Free | — |
| Size | 18 MB | 42 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宗辉 姜](https://appshunter.io/developer/1547364363) | [AG AUTOMOTIVE GmbH](https://appshunter.io/developer/1581086009) |

## What reviewers say

### ExtraPower

[App page](https://appshunter.io/ios/app/extrapower/id1570376618)

Monitor your LiFePO4 batteries wirelessly from your phone or tablet. Track cycle life, view state of charge, voltage, current, and temperature. Connects via Bluetooth BLE 4.0 or later.

**Highlights:** Wireless battery connection, Cycle life tracking, State of Charge (SOC) percentage, Voltage, current, and temperature display, Bluetooth BLE 4.0+ connectivity, Up to 5-meter connectivity distance

**Features:** macOS Compatibility

**In-app purchases:** none


### AG LITHIUM

[App page](https://appshunter.io/ios/app/ag-lithium/id1582129708)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExtraPower free?

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

### Is AG LITHIUM free?

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

### Do ExtraPower or AG LITHIUM have ads?

Neither ExtraPower nor AG LITHIUM shows ads.

### Which is updated more often, ExtraPower or AG LITHIUM?

ExtraPower ships an update every 5 weeks, and AG LITHIUM every 9 months. Most recently, ExtraPower was updated on October 3, 2026 and AG LITHIUM on October 19, 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.*