# SOSglasses vs optaro

The clearest difference is in-app purchases: optaro at none against SOSglasses's 1. SOSglasses's advantage is iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SOSglasses sells 1 one-off in-app purchase. optaro asks for nothing beyond the download.

SOSglasses ships an update every 2 months, optaro every 3 months. The most recent releases landed on June 11, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SOSglasses | optaro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sosglasses/id997011622/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 54 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WPTRNPT LTD.](https://appshunter.io/developer/997011621) | [Eschenbach Optik GmbH](https://appshunter.io/developer/1759178360) |

## What reviewers say

### SOSglasses

[App page](https://appshunter.io/ios/app/sosglasses/id997011622)

This app helps you read small text without your glasses. It uses augmented reality to enhance text readability in low light and bright sunlight, and offers zoom and photo capture features.

**Highlights:** Augmented reality for low light reading, Text enhancement in bright sunlight, Smooth zoom up to 15x, Photo capture for documentation, Invert text mode, Strain-free Sepia mode

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4 -almost- Magical Features | $0.99 | one-time |


### optaro

[App page](https://appshunter.io/ios/app/optaro/id6572303552)

**In-app purchases:** none


## Frequently asked questions

### Is SOSglasses free?

SOSglasses is free to download, with in-app purchases available.

### Is optaro free?

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

### Do SOSglasses or optaro have ads?

Neither SOSglasses nor optaro shows ads.

### Which is updated more often, SOSglasses or optaro?

SOSglasses ships an update every 2 months, and optaro every 3 months. Most recently, SOSglasses was updated on June 11, 2026 and optaro on September 13, 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.*