# Calodin vs Simple Weight Log

The clearest difference is in-app purchases: Calodin at none against Simple Weight Log's 1. Calodin also leads on ads (none vs shown). Simple Weight Log's advantage is update cadence (every 5 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Weight Log sells 1 one-off in-app purchase. Calodin asks for nothing beyond the download.

Calodin ships an update every 3 weeks, Simple Weight Log every 5 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calodin | Simple Weight Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 2 MB | 7 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nico Verbruggen](https://appshunter.io/developer/1016261706) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### Calodin

[App page](https://appshunter.io/ios/app/calodin/id6741170081)

**In-app purchases:** none


### Simple Weight Log

[App page](https://appshunter.io/ios/app/simple-weight-log/id6791792650)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is Calodin free?

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

### Is Simple Weight Log free?

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

### Do Calodin or Simple Weight Log have ads?

Simple Weight Log shows ads; Calodin does not.

### Which is updated more often, Calodin or Simple Weight Log?

Calodin ships an update every 3 weeks, and Simple Weight Log every 5 days. Most recently, Calodin was updated on October 20, 2026 and Simple Weight Log on October 24, 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.*