# Chelf vs PixelDiary

The clearest difference is in-app purchases: PixelDiary at none against Chelf's 2. PixelDiary also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Chelf sells 2 in-app purchases, starting at $1.99 per month. PixelDiary asks for nothing beyond the download.

Chelf ships an update every 8 days, PixelDiary every 6 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Chelf | PixelDiary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/pixeldiary-year-in-pixels/id6759122788/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | — | Free |
| Size | 45 MB | 14 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nathan Ross](https://appshunter.io/developer/1841088517) | [Artur Szychta](https://appshunter.io/developer/1876988569) |

## What reviewers say

### Chelf

[App page](https://appshunter.io/ios/app/chelf/id6752807043)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chelf Pro | $1.99 | per month |
| Chelf Pro Yearly | $18.00 | per year |


### PixelDiary

[App page](https://appshunter.io/ios/app/pixeldiary-year-in-pixels/id6759122788)

Visually track your mood, habits, and daily notes in a year-long pixel grid. Quickly log your day and discover patterns over time with customizable categories and insights. Designed for private, offline use with cross-device syncing.

**Highlights:** Year-in-pixels format, Customizable categories and scales, Quick daily check-ins, Text notes and modifiers, Pattern and trend analysis, Offline-friendly with device sync

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

**In-app purchases:** none


## Frequently asked questions

### Is Chelf free?

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

### Is PixelDiary free?

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

### Do Chelf or PixelDiary have ads?

Chelf shows ads; PixelDiary does not.

### Which is updated more often, Chelf or PixelDiary?

Chelf ships an update every 8 days, and PixelDiary every 6 days. Most recently, Chelf was updated on October 28, 2026 and PixelDiary on October 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.*