# Together CSA vs Mental Math for Pilots

The clearest difference is in-app purchases: Together CSA at none against Mental Math for Pilots's 3. Together CSA also leads on update cadence (every 3 months vs every 8 months) and iOS requirement (16.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Mental Math for Pilots sells 3 in-app purchases, starting at $1.99 per month. Together CSA asks for nothing beyond the download.

Together CSA ships an update every 3 months, Mental Math for Pilots every 8 months. Both last shipped on November 9, 2026.

## The numbers

| Metric | Together CSA | Mental Math for Pilots |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Size | 49 MB | 13 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Together School Ltd.](https://appshunter.io/developer/1435823650) | [Selcuk Dolapci](https://appshunter.io/developer/1509031121) |

## What reviewers say

### Together CSA

[App page](https://appshunter.io/ios/app/together-csa/id6758862505)

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

**In-app purchases:** none


### Mental Math for Pilots

[App page](https://appshunter.io/ios/app/mental-math-for-pilots/id6759334830)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $19.99 | per year |
| Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is Together CSA free?

Together CSA is free to download, with no in-app purchases.

### Is Mental Math for Pilots free?

Mental Math for Pilots is free to download, with in-app purchases available.

### Do Together CSA or Mental Math for Pilots have ads?

Neither Together CSA nor Mental Math for Pilots shows ads.

### Which is updated more often, Together CSA or Mental Math for Pilots?

Together CSA ships an update every 3 months, and Mental Math for Pilots every 8 months. Most recently, Together CSA was updated on November 9, 2026 and Mental Math for Pilots on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*