# The Estimation Project vs CasePrep

The clearest difference is update cadence: The Estimation Project at every 9 days against CasePrep's every 2 months. The Estimation Project also leads on iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Estimation Project ships an update every 9 days, CasePrep every 2 months. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | The Estimation Project | CasePrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 55 MB | 19 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [UniTransferKlinik Lübeck GmbH](https://appshunter.io/developer/1798700422) | [Daniel Spitzl](https://appshunter.io/developer/1879486285) |

## What reviewers say

### The Estimation Project

[App page](https://appshunter.io/ios/app/the-estimation-project/id6742491996)

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

**In-app purchases:** none


### CasePrep

[App page](https://appshunter.io/ios/app/caseprep/id6759556177)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Estimation Project free?

The Estimation Project is free to download, with no in-app purchases.

### Is CasePrep free?

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

### Do The Estimation Project or CasePrep have ads?

Neither The Estimation Project nor CasePrep shows ads.

### Which is updated more often, The Estimation Project or CasePrep?

The Estimation Project ships an update every 9 days, and CasePrep every 2 months. Most recently, The Estimation Project was updated on September 18, 2026 and CasePrep on September 23, 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.*