# Simple Weight Tracker vs Keel

The clearest difference is in-app purchases: Keel at none against Simple Weight Tracker's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Weight Tracker sells 2 in-app purchases, starting at $1.99 per month. Keel asks for nothing beyond the download.

Simple Weight Tracker ships an update every 10 days, Keel every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Weight Tracker | Keel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Size | 36 MB | 22 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sick App Developers GmbH](https://appshunter.io/developer/1507412735) | [SKINSCAN AI LTD](https://appshunter.io/developer/6794461336) |

## What reviewers say

### Simple Weight Tracker

[App page](https://appshunter.io/ios/app/simple-weight-tracker-bmi/id6763031493)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Weight Tracker Premium | $1.99 | per month |
| Simple Weight Tracker Premium | $14.99 | per year |


### Keel

[App page](https://appshunter.io/ios/app/keel-glp-1-injection-tracker/id6794461334)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Weight Tracker free?

Simple Weight Tracker is free to download, with in-app purchases available.

### Is Keel free?

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

### Do Simple Weight Tracker or Keel have ads?

Neither Simple Weight Tracker nor Keel shows ads.

### Which is updated more often, Simple Weight Tracker or Keel?

Simple Weight Tracker ships an update every 10 days, and Keel every 2 weeks. Most recently, Simple Weight Tracker was updated on November 5, 2026 and Keel on October 31, 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.*