# Keel vs Tairoku

The clearest difference is ads: Keel at none against Tairoku's shown. Keel also leads on iOS requirement (15.1 vs 17.0). Tairoku's advantage is update cadence (every 4 weeks vs every 5 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Keel ships an update every 5 months, Tairoku every 4 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Keel | Tairoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Size | 29 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALASDAIR CUNNINGHAM](https://appshunter.io/developer/1889323128) | [Daisuke Minami](https://appshunter.io/developer/1762826742) |

## What reviewers say

### Keel

[App page](https://appshunter.io/ios/app/keel-weight-tracker/id6761394184)

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

**In-app purchases:** none


### Tairoku

[App page](https://appshunter.io/ios/app/tairoku-weight-tracker/id6793710172)

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

**In-app purchases:** none


## Frequently asked questions

### Is Keel free?

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

### Is Tairoku free?

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

### Do Keel or Tairoku have ads?

Tairoku shows ads; Keel does not.

### Which is updated more often, Keel or Tairoku?

Keel ships an update every 5 months, and Tairoku every 4 weeks. Most recently, Keel was updated on October 24, 2026 and Tairoku 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.*