# Aerchat vs Umi

The clearest difference is update cadence: Aerchat at every 2 days against Umi's weekly. Aerchat also leads on iOS requirement (12.0 vs 15). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Aerchat sells 6 in-app purchases, starting at $9.99 per 7 days and Umi sells 9 in-app purchases, starting at $14.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Aerchat ships an update every 2 days, Umi weekly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Aerchat | Umi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Size | 30 MB | 55 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [JOYFEST PTE. LTD.](https://appshunter.io/developer/1745270117) | [Happy Oversea Limited](https://appshunter.io/developer/1893505836) |

## What reviewers say

### Aerchat

[App page](https://appshunter.io/ios/app/aerchat-ai-pet-diary/id6760640959)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $9.99 | per 7 days |
| 249 Gems | $6.99 | one-time |
| 199 Gems | $6.99 | one-time |
| 399 Gems | $10.99 | one-time |
| 729 Gems | $21.99 | one-time |
| 1899 Gems | $52.99 | one-time |


### Umi

[App page](https://appshunter.io/ios/app/umi-postshare/id6767474247)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly sub | $14.99 | per 7 days |
| Monthly sub | $29.99 | per month |
| Annual sub | $69.99 | per year |
| 200 Gold Coin Pack | $3.99 | one-time |
| 500 Gold Coin Pack | $9.99 | one-time |
| 1000 Gold Coin Pack | $19.99 | one-time |
| 2000 Gold Coin Pack | $39.99 | one-time |
| 3000 Gold Coin Pack | $59.99 | one-time |
| 5000 Gold Coin Pack | $99.99 | one-time |


## Frequently asked questions

### Is Aerchat free?

Aerchat is free to download, with in-app purchases available.

### Is Umi free?

Umi is free to download, with in-app purchases available.

### Do Aerchat or Umi have ads?

Neither Aerchat nor Umi shows ads.

### Which is updated more often, Aerchat or Umi?

Aerchat ships an update every 2 days, and Umi weekly. Most recently, Aerchat was updated on November 5, 2026 and Umi on November 5, 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.*