# Corelax vs Oikomi

The clearest difference is in-app purchases: Corelax at none against Oikomi's 6. Corelax also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Oikomi sells 6 in-app purchases, starting at $4.99 per month. Corelax asks for nothing beyond the download.

Corelax ships an update every 10 days, Oikomi weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Corelax | Oikomi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 83 MB | 22 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [DUNKIT K.K.](https://appshunter.io/developer/1780948183) | [Shu Hirouchi](https://appshunter.io/developer/6773295655) |

## What reviewers say

### Corelax

[App page](https://appshunter.io/ios/app/corelax/id6752983129)

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

**In-app purchases:** none


### Oikomi

[App page](https://appshunter.io/ios/app/oikomi-strength-training-log/id6773295653)

**Features:** Apple Watch app

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oikomi Pro 月額 | $4.99 | per month |
| Oikomi Pro 年額 | $29.99 | per year |
| スポーツドリンク 1 本 | $0.99 | one-time |
| プロテイン 1杯 | $1.99 | one-time |
| 鶏胸肉200g | $2.99 | one-time |
| 焼肉チートデイ | $5.99 | one-time |


## Frequently asked questions

### Is Corelax free?

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

### Is Oikomi free?

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

### Do Corelax or Oikomi have ads?

Neither Corelax nor Oikomi shows ads.

### Which is updated more often, Corelax or Oikomi?

Corelax ships an update every 10 days, and Oikomi weekly. Most recently, Corelax was updated on October 25, 2026 and Oikomi 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.*