# Herzion vs AISS

The clearest difference is ads: AISS at none against Herzion's shown. AISS also leads on update cadence (weekly vs every 2 months). Herzion's advantage is iOS requirement (13.0 vs 15.1). On price, 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.

Herzion ships an update every 2 months, AISS weekly. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Herzion | AISS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Size | 204 MB | 58 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ARIBIO CO., Ltd.](https://appshunter.io/developer/1445098036) | [Athletec co.,ltd.](https://appshunter.io/developer/1785202980) |

## What reviewers say

### Herzion

[App page](https://appshunter.io/ios/app/herzion/id6463604810)

**In-app purchases:** none


### AISS

[App page](https://appshunter.io/ios/app/aiss/id6739425707)

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

**In-app purchases:** none


## Frequently asked questions

### Is Herzion free?

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

### Is AISS free?

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

### Do Herzion or AISS have ads?

Herzion shows ads; AISS does not.

### Which is updated more often, Herzion or AISS?

Herzion ships an update every 2 months, and AISS weekly. Most recently, Herzion was updated on October 11, 2026 and AISS on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*