# 91 Payments vs Auto Metric

The clearest difference is in-app purchases: 91 Payments at none against Auto Metric's 1. 91 Payments also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Auto Metric sells 1 in-app purchase, starting at $7.99 per year. 91 Payments asks for nothing beyond the download.

91 Payments ships an update every 3 weeks, Auto Metric every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 91 Payments | Auto Metric |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 28 MB | 20 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GREY INVENT TECHNOLOGY LIMITED](https://appshunter.io/developer/1811104374) | [Navid Mirzaaghazadeh](https://appshunter.io/developer/1807487849) |

## What reviewers say

### 91 Payments

[App page](https://appshunter.io/ios/app/91-payments/id6746633692)

**Features:** macOS Compatibility

**In-app purchases:** none


### Auto Metric

[App page](https://appshunter.io/ios/app/auto-metric-expense-tracker/id6757914584)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto Metric Pro | $7.99 | per year |


## Frequently asked questions

### Is 91 Payments free?

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

### Is Auto Metric free?

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

### Do 91 Payments or Auto Metric have ads?

Neither 91 Payments nor Auto Metric shows ads.

### Which is updated more often, 91 Payments or Auto Metric?

91 Payments ships an update every 3 weeks, and Auto Metric every 2 weeks. Most recently, 91 Payments was updated on October 30, 2026 and Auto Metric 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.*