# OneCharge EV vs Battem

The clearest difference is update cadence: Battem at fortnightly against OneCharge EV's every 2 months. OneCharge EV's advantage is iOS requirement (13.0 vs 15.6). 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.

OneCharge EV ships an update every 2 months, Battem fortnightly. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | OneCharge EV | Battem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 62 MB | 79 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [One Charge New Energy and Technology Sole Co., Ltd](https://appshunter.io/developer/1802832897) | [Balamy Sokthavy](https://appshunter.io/developer/1895151991) |

## What reviewers say

### OneCharge EV

[App page](https://appshunter.io/ios/app/onecharge-ev/id6743433908)

**Features:** macOS Compatibility

**In-app purchases:** none


### Battem

[App page](https://appshunter.io/ios/app/battem/id6763077715)

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

**In-app purchases:** none


## Frequently asked questions

### Is OneCharge EV free?

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

### Is Battem free?

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

### Do OneCharge EV or Battem have ads?

Neither OneCharge EV nor Battem shows ads.

### Which is updated more often, OneCharge EV or Battem?

OneCharge EV ships an update every 2 months, and Battem fortnightly. Most recently, OneCharge EV was updated on September 30, 2026 and Battem on October 9, 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.*