# Zetlog vs PetraPOS

The clearest difference is in-app purchases: PetraPOS at none against Zetlog's 8. PetraPOS also leads on iOS requirement (13.0 vs 17.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Zetlog sells 8 in-app purchases, starting at $2.99 per 7 days. PetraPOS asks for nothing beyond the download.

Zetlog ships an update every 3 weeks, PetraPOS every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Zetlog | PetraPOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (15 ratings)](https://appshunter.io/ios/app/zetlog-online-tracker/id6445889775/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 15.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 48 MB |
| Requires iOS | 17.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SUPERSKY APPS LIMITED](https://appshunter.io/developer/1625601592) | [Oguzhan ATAS](https://appshunter.io/developer/1807168970) |

## What reviewers say

### Zetlog

[App page](https://appshunter.io/ios/app/zetlog-online-tracker/id6445889775)

This app allows you to monitor your online activity and track when contacts go online or offline. It functions as an activity monitor for your digital presence. Review the terms and privacy policy for usage details.

**Highlights:** Monitor online activity, Track online status, Track offline status, Activity monitoring, Status tracking

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Weekly 3 | $4.99 | per 7 days |
| Weekly 5 | $6.99 | per 7 days |
| Monthly | $8.99 | per month |
| Monthly 3 | $14.99 | per month |
| Monthly 5 | $19.99 | per month |
| Extra 1 Number | $2.99 | one-time |
| Extra 2 Numbers | $3.99 | one-time |


### PetraPOS

[App page](https://appshunter.io/ios/app/petrapos/id6744338657)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zetlog free?

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

### Is PetraPOS free?

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

### Do Zetlog or PetraPOS have ads?

Neither Zetlog nor PetraPOS shows ads.

### Which is updated more often, Zetlog or PetraPOS?

Zetlog ships an update every 3 weeks, and PetraPOS every 2 weeks. Most recently, Zetlog was updated on October 24, 2026 and PetraPOS on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*