# CardioPlan vs MyGrain

The clearest difference is in-app purchases: CardioPlan at none against MyGrain's 2. CardioPlan also leads on iOS requirement (12.0 vs 15.0). MyGrain's advantage is update cadence (every 8 days vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. MyGrain sells 2 in-app purchases, starting at $2.99 per month. CardioPlan asks for nothing beyond the download.

CardioPlan ships an update every 11 months, MyGrain every 8 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | CardioPlan | MyGrain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 8 days** |
| Size | 48 MB | 50 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Socioemprende (Grupo Trilema)](https://appshunter.io/developer/1449696987) | [Alfonso Matos](https://appshunter.io/developer/1751243701) |

## What reviewers say

### CardioPlan

[App page](https://appshunter.io/ios/app/cardioplan/id1531281018)

**In-app purchases:** none


### MyGrain

[App page](https://appshunter.io/ios/app/mygrain-migraine-diary/id6504174607)

**Features:** iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My Grain Monthly Subscription | $2.99 | per month |
| My Grain Annual Subscription | $29.99 | per year |


## Frequently asked questions

### Is CardioPlan free?

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

### Is MyGrain free?

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

### Do CardioPlan or MyGrain have ads?

Neither CardioPlan nor MyGrain shows ads.

### Which is updated more often, CardioPlan or MyGrain?

CardioPlan ships an update every 11 months, and MyGrain every 8 days. Most recently, CardioPlan was updated on November 7, 2026 and MyGrain on November 8, 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.*