# iWorkout Tracker vs Kidney Note

The clearest difference is in-app purchases: iWorkout Tracker at none against Kidney Note's 1. iWorkout Tracker also leads on ads (none vs shown) and iOS requirement (15.4 vs 26.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Kidney Note sells 1 in-app purchase, starting at $0.99 per month. iWorkout Tracker asks for nothing beyond the download.

iWorkout Tracker ships an update fortnightly, Kidney Note every 9 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | iWorkout Tracker | Kidney Note |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 8 MB | 18 MB |
| Requires iOS | **15.4** | 26.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Timm Kent](https://appshunter.io/developer/992102549) | [shinichi tanimoto](https://appshunter.io/developer/338978015) |

## What reviewers say

### iWorkout Tracker

[App page](https://appshunter.io/ios/app/iworkout-tracker/id1623036582)

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

**In-app purchases:** none


### Kidney Note

[App page](https://appshunter.io/ios/app/kidney-note/id6745475185)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multiple User Registration | $0.99 | per month |


## Frequently asked questions

### Is iWorkout Tracker free?

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

### Is Kidney Note free?

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

### Do iWorkout Tracker or Kidney Note have ads?

Kidney Note shows ads; iWorkout Tracker does not.

### Which is updated more often, iWorkout Tracker or Kidney Note?

iWorkout Tracker ships an update fortnightly, and Kidney Note every 9 days. Most recently, iWorkout Tracker was updated on October 5, 2026 and Kidney Note on September 30, 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.*