# Heukelbach vs Form und Lage Pro

The clearest difference is review sentiment: Heukelbach at 100% against Form und Lage Pro's 33%. Heukelbach also leads on price (Free vs $9.99) and update cadence (every 3 months vs every 9 months). On ads and in-app purchases there is nothing between them.

Heukelbach is free to download; Form und Lage Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Heukelbach ships an update every 3 months, Form und Lage Pro every 9 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Heukelbach | Form und Lage Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heukelbach/id951951413/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | **Free** | Paid |
| Size | 49 MB | 108 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stiftung M.W. Heukelbach](https://appshunter.io/developer/919406087) | [Carl Zeiss AG](https://appshunter.io/developer/488066215) |

## What reviewers say

### Heukelbach

[App page](https://appshunter.io/ios/app/heukelbach/id951951413)

This app provides a collection of evangelistic content, including life stories, short films, and blogs, to help users share the Gospel. It features a 24/7 radio station, podcasts, and children's programming, all designed for easy sharing on social media.

**Highlights:** Evangelistic media library, Shareable short films and blogs, 24/7 Christian radio station, On-demand podcasts and children's programs, Push notifications for latest news, Direct contact and donation options

**In-app purchases:** none


### Form und Lage Pro

[App page](https://appshunter.io/ios/app/form-und-lage-pro/id976641948)

This app helps engineers, masters, and skilled workers understand, interpret, and verify form and position tolerances according to DIN EN ISO 1101. It serves as a multimedia reference, illustrating concepts with 52 animations for practical application in training and education.

**Highlights:** Understanding form and position tolerances, Interpretation with examples, Multimedia reference for professionals, 52 animations for illustration, Covers DIN EN ISO 1101 standards

**In-app purchases:** none


## Frequently asked questions

### Is Heukelbach free?

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

### Is Form und Lage Pro free?

Form und Lage Pro costs $9.99, with no in-app purchases.

### Do Heukelbach or Form und Lage Pro have ads?

Neither Heukelbach nor Form und Lage Pro shows ads.

### Which is updated more often, Heukelbach or Form und Lage Pro?

Heukelbach ships an update every 3 months, and Form und Lage Pro every 9 months. Most recently, Heukelbach was updated on October 14, 2026 and Form und Lage Pro on October 24, 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.*