# ProMeter vs ALL IN 1

The clearest difference is in-app purchases: ALL IN 1 at none against ProMeter's 1. ALL IN 1 also leads on iOS requirement (12.1 vs 16.0). ProMeter's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. ProMeter sells 1 one-off in-app purchase. ALL IN 1 asks for nothing beyond the download.

ProMeter ships an update every 3 weeks, ALL IN 1 every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ProMeter | ALL IN 1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 15 MB | 68 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [健豪 郑](https://appshunter.io/developer/1700165618) | [Golden Key Assist Association Incorporated](https://appshunter.io/developer/1743377658) |

## What reviewers say

### ProMeter

[App page](https://appshunter.io/ios/app/prometer/id6455888684)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iCloud数据同步 | $1.99 | one-time |


### ALL IN 1

[App page](https://appshunter.io/ios/app/all-in-1/id6499422165)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is ProMeter free?

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

### Is ALL IN 1 free?

ALL IN 1 is free to download, with no in-app purchases.

### Do ProMeter or ALL IN 1 have ads?

Neither ProMeter nor ALL IN 1 shows ads.

### Which is updated more often, ProMeter or ALL IN 1?

ProMeter ships an update every 3 weeks, and ALL IN 1 every 3 months. Most recently, ProMeter was updated on November 3, 2026 and ALL IN 1 on November 4, 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.*