# Hogrefe Toolbox vs TeacherTime

The clearest difference is in-app purchases: Hogrefe Toolbox at none against TeacherTime's 3. Hogrefe Toolbox also leads on iOS requirement (13.0 vs 17.6). TeacherTime's advantage is update cadence (every 4 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. TeacherTime sells 3 in-app purchases, starting at $0.99 per month. Hogrefe Toolbox asks for nothing beyond the download.

Hogrefe Toolbox ships an update every 5 months, TeacherTime every 4 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | Hogrefe Toolbox | TeacherTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/hogrefe-toolbox/id1573546338/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 55 MB | 12 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hogrefe Verlag GmbH & Co. KG](https://appshunter.io/developer/536197063) | [Mario Koopke](https://appshunter.io/developer/1839513624) |

## What reviewers say

### Hogrefe Toolbox

[App page](https://appshunter.io/ios/app/hogrefe-toolbox/id1573546338)

This utility app assists psychologists and therapists with diagnostic work by automating time-consuming calculations for assessments. It supports score conversions, age calculations, and confidence interval analysis, streamlining the assessment process.

**Highlights:** Convert standard scores, Calculate test taker age, Calculate confidence intervals, Calculate critical differences, Graphical result visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### TeacherTime

[App page](https://appshunter.io/ios/app/teachertime/id6762621030)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TeacherTime Premium Monthly | $0.99 | per month |
| TeacherTime Premium Yearly | $8.99 | per year |
| TeacherTime Premium Lifetime | $22.99 | one-time |


## Frequently asked questions

### Is Hogrefe Toolbox free?

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

### Is TeacherTime free?

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

### Do Hogrefe Toolbox or TeacherTime have ads?

Neither Hogrefe Toolbox nor TeacherTime shows ads.

### Which is updated more often, Hogrefe Toolbox or TeacherTime?

Hogrefe Toolbox ships an update every 5 months, and TeacherTime every 4 days. Most recently, Hogrefe Toolbox was updated on October 9, 2026 and TeacherTime 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.*