# Topspeed Battery Assistant vs GAS

The clearest difference is ads: GAS at none against Topspeed Battery Assistant's shown. On price, update cadence, 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.

Topspeed Battery Assistant ships an update every 2 months, GAS every 5 weeks. The most recent releases landed on November 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Topspeed Battery Assistant | GAS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 72 MB | 63 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Xingyun Power Source Technology Co., Ltd.](https://appshunter.io/developer/1681532422) | [仲科 李](https://appshunter.io/developer/1802663356) |

## What reviewers say

### Topspeed Battery Assistant

[App page](https://appshunter.io/ios/app/topspeed-battery-assistant/id1628977972)

**Features:** macOS Compatibility

**In-app purchases:** none


### GAS

[App page](https://appshunter.io/ios/app/gas-lan/id6744930499)

**In-app purchases:** none


## Frequently asked questions

### Is Topspeed Battery Assistant free?

Topspeed Battery Assistant is free to download, with no in-app purchases.

### Is GAS free?

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

### Do Topspeed Battery Assistant or GAS have ads?

Topspeed Battery Assistant shows ads; GAS does not.

### Which is updated more often, Topspeed Battery Assistant or GAS?

Topspeed Battery Assistant ships an update every 2 months, and GAS every 5 weeks. Most recently, Topspeed Battery Assistant was updated on November 3, 2026 and GAS on October 2, 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.*