# PAT Test Pro vs MeSize

The clearest difference is update cadence: MeSize at every 5 days against PAT Test Pro's every 2 weeks. MeSize also leads on iOS requirement (16.4 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PAT Test Pro sells 6 in-app purchases, starting at $24.99 per month and MeSize sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PAT Test Pro ships an update every 2 weeks, MeSize every 5 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PAT Test Pro | MeSize |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 50 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iCertifi](https://appshunter.io/developer/490104127) | [Nazar Verbytskyi](https://appshunter.io/developer/1896761241) |

## What reviewers say

### PAT Test Pro

[App page](https://appshunter.io/ios/app/pat-test-pro/id6746668717)

Streamline portable appliance testing with intelligent scanning and AI visual inspections. Generate professional certificates, track appliance history, and manage retest dates seamlessly on your devices. Automate invoicing and secure your data with cloud storage.

**Highlights:** Smart barcode scanning for appliance details, AI visual inspection for defects, Appliance history and test records, Automated retest date reminders, Professional PDF certificate generation, Secure cloud storage and sync, Draft invoice generation for bookkeeping

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $24.99 | per month |
| PAT Test Pro | $119.99 | per year |
| PAT Test Pro | $349.00 | per year |
| 50 AI | $4.99 | one-time |
| 250 Appliance Scan credits | $19.99 | one-time |
| 1000 AI Credits | $39.99 | one-time |


### MeSize

[App page](https://appshunter.io/ios/app/mesize/id6790968741)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MeSize Credits | $4.99 | one-time |
| MeSize Premium | $5.99 | one-time |
| Try-on Credits 50 | $21.99 | one-time |
| Try-on Credits 200 | $64.99 | one-time |


## Frequently asked questions

### Is PAT Test Pro free?

PAT Test Pro is free to download, with in-app purchases available.

### Is MeSize free?

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

### Do PAT Test Pro or MeSize have ads?

Neither PAT Test Pro nor MeSize shows ads.

### Which is updated more often, PAT Test Pro or MeSize?

PAT Test Pro ships an update every 2 weeks, and MeSize every 5 days. Most recently, PAT Test Pro was updated on November 9, 2026 and MeSize on November 10, 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.*