# Attendable vs Pastor Operating System

The clearest difference is price: Attendable at Free against Pastor Operating System's $19.99. Attendable also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). Pastor Operating System's advantage is ads (none vs shown) and update cadence (every 2 days vs fortnightly). On in-app purchases there is nothing between them.

Attendable is free to download; Pastor Operating System costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Attendable ships an update fortnightly, Pastor Operating System every 2 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Attendable | Pastor Operating System |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[4.6 (144 ratings)](https://appshunter.io/ios/app/attendable-attendance-tracker/id6449538125/reviews)** | — |
| Number of ratings | **144** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 63 MB | 17 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JongHyeok Park](https://appshunter.io/developer/1453354648) | [Wrenae Hudson](https://appshunter.io/developer/1896664847) |

## What reviewers say

### Attendable

[App page](https://appshunter.io/ios/app/attendable-attendance-tracker/id6449538125)

Manage group attendance for various activities like schools and gatherings. Customize check-in messages, track statistics, and record attendance times. Import contacts or manually enter data, and export records as Excel files.

**Highlights:** Custom attendance messages, Multi-check and group sharing, Statistical data by period/individual, Call, text, note, and time recording, Import contacts or manual entry, Export data as Excel files

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

**In-app purchases:** none


### Pastor Operating System

[App page](https://appshunter.io/ios/app/pastor-operating-system/id6769519737)

**In-app purchases:** none


## Frequently asked questions

### Is Attendable free?

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

### Is Pastor Operating System free?

Pastor Operating System costs $19.99, with no in-app purchases.

### Do Attendable or Pastor Operating System have ads?

Attendable shows ads; Pastor Operating System does not.

### Which is updated more often, Attendable or Pastor Operating System?

Attendable ships an update fortnightly, and Pastor Operating System every 2 days. Most recently, Attendable was updated on October 16, 2026 and Pastor Operating System on October 9, 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.*