# Kozen Yoga vs Checkstack

The clearest difference is iOS requirement: Kozen Yoga at 15.1 against Checkstack's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kozen Yoga | Checkstack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 55 MB | 3 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Momence, Inc.](https://appshunter.io/developer/1577856011) | [OcuNecu](https://appshunter.io/developer/301177165) |

## What reviewers say

### Kozen Yoga

[App page](https://appshunter.io/ios/app/kozen-yoga/id6740454536)

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

**In-app purchases:** none


### Checkstack

[App page](https://appshunter.io/ios/app/checkstack-habit-tracker/id6766552795)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kozen Yoga free?

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

### Is Checkstack free?

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

### Do Kozen Yoga or Checkstack have ads?

Neither Kozen Yoga nor Checkstack shows ads.

### Which is updated more often, Kozen Yoga or Checkstack?

Kozen Yoga ships an update every 3 months, and Checkstack every 3 months. Most recently, Kozen Yoga was updated on September 29, 2026 and Checkstack on October 25, 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.*