# Horolog vs ZeroNAS

The clearest difference is in-app purchases: ZeroNAS at none against Horolog's 3. ZeroNAS also leads on iOS requirement (15.0 vs 18.0). Horolog's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Horolog sells 3 one-off in-app purchases. ZeroNAS asks for nothing beyond the download.

Horolog ships an update every 2 days, ZeroNAS every 2 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Horolog | ZeroNAS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (21 ratings)](https://appshunter.io/ios/app/horolog/id6747312113/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 143 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Kunz](https://appshunter.io/developer/919557120) | [Fujian Centerm Information Co., Ltd](https://appshunter.io/developer/807316807) |

## What reviewers say

### Horolog

[App page](https://appshunter.io/ios/app/horolog/id6747312113)

Log your daily watch wear, track your collection, and view insightful statistics about your rotation. Effortlessly record what you wore and discover patterns in your habits.

**Highlights:** Daily watch logging, Watch rotation statistics, Collection management, Add photos and notes, Import from CSV, Track streaks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Credits | $4.99 | one-time |
| 25 Credits | $10.99 | one-time |
| 50 Credits | $18.99 | one-time |


### ZeroNAS

[App page](https://appshunter.io/ios/app/zeronas/id6754591921)

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

**In-app purchases:** none


## Frequently asked questions

### Is Horolog free?

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

### Is ZeroNAS free?

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

### Do Horolog or ZeroNAS have ads?

Neither Horolog nor ZeroNAS shows ads.

### Which is updated more often, Horolog or ZeroNAS?

Horolog ships an update every 2 days, and ZeroNAS every 2 weeks. Most recently, Horolog was updated on October 9, 2026 and ZeroNAS on October 10, 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.*