# Open Bionics Sidekick vs Ophthalmic Instruments

The clearest difference is review sentiment: Ophthalmic Instruments at 100% against Open Bionics Sidekick's 0%. Ophthalmic Instruments also leads on iOS requirement (13.0 vs 15.1). Open Bionics Sidekick's advantage is ads (none vs shown) and update cadence (every 2 months vs every 34 months). On price, 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.

Open Bionics Sidekick ships an update every 2 months, Ophthalmic Instruments every 34 months. Both last shipped on October 17, 2026.

## The numbers

| Metric | Open Bionics Sidekick | Ophthalmic Instruments |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/open-bionics-sidekick/id1565393107/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 34 months |
| Monetization | **Free** | Ad-supported |
| Size | 104 MB | 32 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Open Bionics](https://appshunter.io/developer/1565393109) | [Roman Moiseev](https://appshunter.io/developer/1877504595) |

## What reviewers say

### Open Bionics Sidekick

[App page](https://appshunter.io/ios/app/open-bionics-sidekick/id1565393107)

This app supports users of advanced prosthetic limbs with guided exercises and personalized training programs. Access expert tips through a video library and track your progress to optimize your bionic experience. Customize your device for maximum benefit.

**Highlights:** Guided exercises, Personalized training programs, Searchable video library, Progress tracking, Device customization

**Features:** Vision Pro support

**In-app purchases:** none


### Ophthalmic Instruments

[App page](https://appshunter.io/ios/app/ophthalmic-instruments/id1666850241)

Access a comprehensive library of over 270 high-quality images of ophthalmic instruments, each with clear descriptions. Navigate effortlessly with an intuitive interface and test your knowledge with an interactive quiz mode.

**Highlights:** 270+ high-quality images, Clear, concise descriptions, Intuitive interface, Interactive knowledge check mode

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Open Bionics Sidekick free?

Open Bionics Sidekick is free to download, with no in-app purchases.

### Is Ophthalmic Instruments free?

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

### Do Open Bionics Sidekick or Ophthalmic Instruments have ads?

Ophthalmic Instruments shows ads; Open Bionics Sidekick does not.

### Which is updated more often, Open Bionics Sidekick or Ophthalmic Instruments?

Open Bionics Sidekick ships an update every 2 months, and Ophthalmic Instruments every 34 months. Most recently, Open Bionics Sidekick was updated on October 17, 2026 and Ophthalmic Instruments on October 17, 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.*