# Mobi Optical vs K&Ö

The clearest difference is ads: K&Ö at none against Mobi Optical's shown. K&Ö also leads on monetization model (free vs ad-supported) and iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Mobi Optical against 5.0 for K&Ö. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Mobi Optical ships an update every 5 months, K&Ö every 7 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mobi Optical | K&Ö |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/mobi-optical/id1223912943/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/k-and-o/id6444117800/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | Ad-supported | **Free** |
| Size | 44 MB | 36 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shila Kareliya](https://appshunter.io/developer/1008040696) | [Koerner & Oelkers GmbH](https://appshunter.io/developer/1652456900) |

## What reviewers say

### Mobi Optical

[App page](https://appshunter.io/ios/app/mobi-optical/id1223912943)

This application digitizes optical shop operations, managing customer data, inventory, orders, and finances. It streamlines business processes by allowing digital storage of prescriptions, stock, and sales reports, with features for generating bills and sharing them digitally.

**Highlights:** Customer data management, Inventory tracking (frames & lenses), Order processing and status, Prescription details (left/right eye), Bill and receipt generation, Sales and financial reporting, Barcode scanner for inventory

**Features:** macOS Compatibility

**In-app purchases:** none


### K&Ö

[App page](https://appshunter.io/ios/app/k-and-o/id6444117800)

This app facilitates communication and management for residential living. It connects residents, owners, and property managers for seamless housing operations. Key features include notifications, damage reporting, classified ads, direct messaging, and access to documents.

**Highlights:** Important notifications and deadlines, Smartphone damage reporting with photos, Classified ads for housing needs, Direct messaging within the community, Access to important documents 24/7, Regular advice articles for residents

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mobi Optical free?

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

### Is K&Ö free?

K&Ö is free to download, with no in-app purchases.

### Which has better reviews, Mobi Optical or K&Ö?

Mobi Optical and K&Ö are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Mobi Optical or K&Ö have ads?

Mobi Optical shows ads; K&Ö does not.

### Which is updated more often, Mobi Optical or K&Ö?

Mobi Optical ships an update every 5 months, and K&Ö every 7 months. Most recently, Mobi Optical was updated on November 2, 2026 and K&Ö on November 3, 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.*