# opt-on

> Configure and order custom magnifying glasses with prescription scanning and pupil distance measurement. (iPhone/iPad app by orangedental.)

- Source: https://appshunter.io/ios/app/opt-on/id1217814707 (this page in markdown: same URL + `.md`)
- Developer: [orangedental](https://appshunter.io/developer/359867555)
- Category: Business, Photo & Video
- Price: Free
- Rating: 3.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 42 MB
- Languages: American English, German (Germany)
- Released: 2017-05-27
- Data updated: 2026-07-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/opt-on/id1217814707/reviews.md

## What is opt?

With the opt-on® app you can comfortably configure your personal magnifying glasses.

Do you have a glasses pass or prescription, with your pupil distance on it?
 - Take a photo of it and configure your individual magnifying glasses!

You don't know your pupil distance? No problem!
 - The opt-on® app offers you the possibility, to take optimal photos, so that our optic can exactly calculate your pupil distance.

Optimal photos provides an optimal meassure result, whereby we can fit your individual opt-on® magnifying glasses exactly for your face.

You can simply place your offer request in the app with the new magnifying glasses configurator.

The function "pupil distance unknown" needs specific hardware and has to be pre-tested with every device, so we can actually only support following devices:

- iPhone 6
- iPhone 6 Plus
- iPhone SE
- iPhone 6s
- iPhone 7
- iPhone 7 Plus

- iPad (6th generation)


Requirements for an optimal result:

Photographer:
- Do not take pictures against the light, avoid light sources (lamp, window,...) in the background
- Take the pictures in a bright or well lighted room
- Take the pictures in front of a single-colored (door, wall, …) flat
- The eyes have to be seen clearly
- There should be no shadow over the eyes
- Hold the iPhone straightly 
- Stand two steps away from the person who will be photographed
- Stretch your arm out
- Move the device slowly on the basis of the instructions on the display

Customer:
- Put on the original measure temple straightly
- Hold your head straightly
- Focus your gaze on the iPhone
- Keep your eyes open

## Key features

- Configure personal magnifying glasses
- Photograph glasses pass/prescription
- Calculate pupil distance
- Create offer requests
- Device-specific pupil distance measurement

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/opt-on/id1217814707/reviews.md

### 1/5 — Kompatibilität?

*2022-01-09, version 3.1*

Iphone 12 Pro mit aktuellem IOS wird nach öffnen der App als nicht kompatibel angezeigt.
Laut Kompatibilitätsangaben im Store müsste es laufen.
So ist die App unbrauchbar für mich.

### 1/5 — Gerät nicht kompatibel

*2021-03-31, version 3.1*

iPhone XS funktioniert schon nicht...

## Frequently asked questions about opt

### How do I configure my magnifying glasses with opt-on?

You can configure your magnifying glasses by taking a photo of your existing glasses pass or prescription. The app also allows you to measure your pupil distance if it's unknown.

### What devices are supported for pupil distance measurement in opt-on?

The pupil distance measurement feature in opt-on requires specific hardware and is currently supported on iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 6s, iPhone 7, iPhone 7 Plus, and iPad (6th generation).

### What are the requirements for taking optimal photos for opt-on?

For optimal results, avoid taking pictures against the light, use a well-lit room with a single-colored background, ensure eyes are clearly visible without shadows, and hold the iPhone straightly at a specific distance while following on-screen instructions.

### Does opt-on have ads?

No, opt-on does not contain advertisements.

### What is the rating of opt-on?

opt-on has a rating of 3.0 stars based on 1 rating.

### Is opt-on free to use?

Yes, opt-on is available for free.

### When was opt-on last updated?

The latest version of opt-on was last updated on December 2, 2018.

### What age rating does opt-on have?

opt-on has an age rating of 4+, making it suitable for younger users and adults.

## Version history (last 4 releases)

### 3.1 — 2018-12-02

Bugfixes

### 3.0 — 2018-09-28

New main menu
The magnifying glasses configurator
Function "pupil distance known"
FAQ menu
Homepage implemented

### 2.0 — 2017-12-28

Only two photos will be taken.
The distances got changed to 1.0 and 1.1 meter.
A goal area for the QR code is displayed.
The current distance is illustrated.
Alerts got adjusted.
The iPhone SE is supported.

### 1.0 — 2017-05-27

No release notes.

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## More apps by orangedental

- [ibyzz](https://appshunter.io/ios/app/ibyzz/id359867552)

All apps by orangedental: https://appshunter.io/developer/359867555

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-02.*