# FitGrid vs Swim Heatmap

The clearest difference is iOS requirement: FitGrid at 18.0 against Swim Heatmap's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. FitGrid sells 3 in-app purchases, starting at $2.99 per 7 days and Swim Heatmap sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

FitGrid ships an update every 2 weeks, Swim Heatmap fortnightly. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | FitGrid | Swim Heatmap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 30 MB | 4 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [VICTORIA PETROVA PETROVA](https://appshunter.io/developer/1825340207) | [帆 杨](https://appshunter.io/developer/1217025742) |

## What reviewers say

### FitGrid

[App page](https://appshunter.io/ios/app/fitgrid-activity-tracker/id6748345644)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Annual Subscription | $39.99 | per year |


### Swim Heatmap

[App page](https://appshunter.io/ios/app/swim-heatmap/id6759971693)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |


## Frequently asked questions

### Is FitGrid free?

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

### Is Swim Heatmap free?

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

### Do FitGrid or Swim Heatmap have ads?

Neither FitGrid nor Swim Heatmap shows ads.

### Which is updated more often, FitGrid or Swim Heatmap?

FitGrid ships an update every 2 weeks, and Swim Heatmap fortnightly. Most recently, FitGrid was updated on October 26, 2026 and Swim Heatmap on October 22, 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.*