# OPTICHECK Level Mobile vs ESA Alben

The clearest difference is iOS requirement: OPTICHECK Level Mobile at 11.0 against ESA Alben's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OPTICHECK Level Mobile ships an update every 3 months, ESA Alben every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OPTICHECK Level Mobile | ESA Alben |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 242 MB | 27 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KROHNE Messtechnik GmbH](https://appshunter.io/developer/1445655816) | [ESA S.p.A. (BG)](https://appshunter.io/developer/1823860419) |

## What reviewers say

### OPTICHECK Level Mobile

[App page](https://appshunter.io/ios/app/opticheck-level-mobile/id1596750666)

**Features:** macOS Compatibility

**In-app purchases:** none


### ESA Alben

[App page](https://appshunter.io/ios/app/esa-alben/id6748006417)

**In-app purchases:** none


## Frequently asked questions

### Is OPTICHECK Level Mobile free?

OPTICHECK Level Mobile is free to download, with no in-app purchases.

### Is ESA Alben free?

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

### Do OPTICHECK Level Mobile or ESA Alben have ads?

Neither OPTICHECK Level Mobile nor ESA Alben shows ads.

### Which is updated more often, OPTICHECK Level Mobile or ESA Alben?

OPTICHECK Level Mobile ships an update every 3 months, and ESA Alben every 2 months. Most recently, OPTICHECK Level Mobile was updated on November 3, 2026 and ESA Alben on October 30, 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.*