# Mesos vs CheckIn Pro

The clearest difference is iOS requirement: Mesos at 13.0 against CheckIn Pro's 15.5. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mesos sells 5 in-app purchases, starting at $9.99 per month and CheckIn Pro sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Mesos | CheckIn Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/checkin-pro-physique-tracker/id6785522011/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 91 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hasegi Inc.](https://appshunter.io/developer/1755968233) | [Steve Yu](https://appshunter.io/developer/1891894708) |

## What reviewers say

### Mesos

[App page](https://appshunter.io/ios/app/mesos-hypertrophy-programmer/id6783384522)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mesos Pro (Monthly) | $9.99 | per month |
| Mesos Pro (Yearly) | $69.99 | per year |
| Delts Specialization Pack | $4.99 | one-time |
| Arms Specialization Pack | $4.99 | one-time |
| Posterior Chain Pack | $4.99 | one-time |


### CheckIn Pro

[App page](https://appshunter.io/ios/app/checkin-pro-physique-tracker/id6785522011)

This app helps physique athletes track their progress with guided, hands-free photo capture and alignment tools. It allows for side-by-side comparisons, logging of weight and measurements, and organizing check-ins by show. Your data is kept private and processed entirely on-device.

**Highlights:** Pose-guided, hands-free capture, Ghost overlay for consistent framing, Side-by-side and blended photo comparisons, Log weight and body measurements, Timelapse animations of progress, On-device data processing for privacy

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CheckIn Pro Monthly | $2.99 | per month |
| CheckIn Pro Annual Subscription | $24.99 | per year |


## Frequently asked questions

### Is Mesos free?

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

### Is CheckIn Pro free?

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

### Do Mesos or CheckIn Pro have ads?

Neither Mesos nor CheckIn Pro shows ads.

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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.*