# GREYHOUND vs a

The clearest difference is update cadence: a at every 2 days against GREYHOUND's every 5 weeks. a also leads on iOS requirement (13.4 vs 16.6). 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.

GREYHOUND ships an update every 5 weeks, a every 2 days. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GREYHOUND | a |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 23 MB | 22 MB |
| Requires iOS | 16.6 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GREYHOUND Software GmbH](https://appshunter.io/developer/1769442160) | [AKKU SYS Akkumulator](https://appshunter.io/developer/1766459745) |

## What reviewers say

### GREYHOUND

[App page](https://appshunter.io/ios/app/greyhound/id1610088541)

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

**In-app purchases:** none


### a

[App page](https://appshunter.io/ios/app/a-tronix-ax-core-hems/id6670475697)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GREYHOUND free?

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

### Is a free?

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

### Do GREYHOUND or a have ads?

Neither GREYHOUND nor a shows ads.

### Which is updated more often, GREYHOUND or a?

GREYHOUND ships an update every 5 weeks, and a every 2 days. Most recently, GREYHOUND was updated on October 25, 2026 and a on October 7, 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.*