# AI Usage Meter vs ModelWitch

The clearest difference is update cadence: ModelWitch at every 4 days against AI Usage Meter's every 2 months. AI Usage Meter's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Usage Meter sells 4 in-app purchases, starting at $0.99 per month and ModelWitch sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

AI Usage Meter ships an update every 2 months, ModelWitch every 4 days. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | AI Usage Meter | ModelWitch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 5 MB | 9 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Overcomplicated Tech](https://appshunter.io/developer/1895218166) | [Lumenif OÜ](https://appshunter.io/developer/1846205412) |

## What reviewers say

### AI Usage Meter

[App page](https://appshunter.io/ios/app/ai-usage-meter/id6763213794)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Meter Pro — Monthly | $0.99 | per month |
| AI Meter Supporter — Monthly | $3.99 | per month |
| AI Meter Pro — Annual | $9.99 | per year |
| AI Meter Supporter — Annual | $29.99 | per year |


### ModelWitch

[App page](https://appshunter.io/ios/app/modelwitch/id6778496717)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ModelWitch Premium — Monthly | $2.99 | per month |
| ModelWitch Premium — Yearly | $19.99 | per year |
| ModelWitch Premium — Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is AI Usage Meter free?

AI Usage Meter is free to download, with in-app purchases available.

### Is ModelWitch free?

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

### Do AI Usage Meter or ModelWitch have ads?

Neither AI Usage Meter nor ModelWitch shows ads.

### Which is updated more often, AI Usage Meter or ModelWitch?

AI Usage Meter ships an update every 2 months, and ModelWitch every 4 days. Most recently, AI Usage Meter was updated on September 19, 2026 and ModelWitch on September 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.*