# Stactra vs Halff

The clearest difference is in-app purchases: Halff at none against Stactra's 4. Halff also leads on iOS requirement (16.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Stactra sells 4 in-app purchases, starting at $4.99 per month. Halff asks for nothing beyond the download.

Stactra ships an update every 4 days, Halff every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Stactra | Halff |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | — | Subscription |
| Size | 58 MB | 16 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Gokhan Caliskan](https://appshunter.io/developer/1876933293) | [UGO STEFANO DI SARIO MULLER](https://appshunter.io/developer/6792124977) |

## What reviewers say

### Stactra

[App page](https://appshunter.io/ios/app/stactra-book-companion/id6759112407)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stactra Plus Monthly | $4.99 | per month |
| Stactra Plus Annual | $29.99 | per year |
| 10 Stactra Credit | $0.99 | one-time |
| 100 Stactra Credit | $6.99 | one-time |


### Halff

[App page](https://appshunter.io/ios/app/halff-score-your-day/id6792124975)

This app helps you track how you spend your time by prompting you every 30 minutes to categorize your activities as valuable or a waste. It provides daily, weekly, and monthly reports to visualize your time usage and identify trends.

**Highlights:** Categorize half-hour time slots, Customizable value/waste categories, Daily, weekly, and monthly reports, Reminder window customization, Sync with web and Mac dashboard, Ad-free experience

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stactra free?

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

### Is Halff free?

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

### Do Stactra or Halff have ads?

Neither Stactra nor Halff shows ads.

### Which is updated more often, Stactra or Halff?

Stactra ships an update every 4 days, and Halff every 5 days. Most recently, Stactra was updated on October 31, 2026 and Halff on October 31, 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.*