# NekoZero vs Zukilog

The clearest difference is in-app purchases: NekoZero at none against Zukilog's 1. NekoZero also leads on update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zukilog sells 1 one-off in-app purchase. NekoZero asks for nothing beyond the download.

NekoZero ships an update every 3 days, Zukilog weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NekoZero | Zukilog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Size | 1 MB | 6 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [nekonata, Inc.](https://appshunter.io/developer/1696496565) | [Hiroki Hayashi](https://appshunter.io/developer/6789364821) |

## What reviewers say

### NekoZero

[App page](https://appshunter.io/ios/app/nekozero/id6757398556)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zukilog

[App page](https://appshunter.io/ios/app/zukilog-migraine-diary/id6790612652)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ズキログ Pro（買い切り） | $7.99 | one-time |


## Frequently asked questions

### Is NekoZero free?

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

### Is Zukilog free?

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

### Do NekoZero or Zukilog have ads?

Neither NekoZero nor Zukilog shows ads.

### Which is updated more often, NekoZero or Zukilog?

NekoZero ships an update every 3 days, and Zukilog weekly. Most recently, NekoZero was updated on October 31, 2026 and Zukilog on November 5, 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.*