# Kaizen vs SpinDone

Kaizen and SpinDone are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Kaizen sells 2 in-app purchases, starting at $3.99 per month and SpinDone sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kaizen ships an update fortnightly, SpinDone every 3 weeks. The most recent releases landed on September 12, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Kaizen | SpinDone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 66 MB | 58 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MK Development](https://appshunter.io/developer/1853083060) | [Eric Pastor Moreno](https://appshunter.io/developer/1883321003) |

## What reviewers say

### Kaizen

[App page](https://appshunter.io/ios/app/kaizen-focus-and-study-timer/id6755314708)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (monthly) | $3.99 | per month |
| Premium (yearly) | $44.99 | per year |


### SpinDone

[App page](https://appshunter.io/ios/app/spindone-stop-overthinking/id6760219447)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpinDone Pro: Level Up Your Day | $1.99 | one-time |


## Frequently asked questions

### Is Kaizen free?

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

### Is SpinDone free?

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

### Do Kaizen or SpinDone have ads?

Neither Kaizen nor SpinDone shows ads.

### Which is updated more often, Kaizen or SpinDone?

Kaizen ships an update fortnightly, and SpinDone every 3 weeks. Most recently, Kaizen was updated on September 12, 2026 and SpinDone on September 28, 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.*