# iOptron Commander (iOS) vs E.A.R.

The clearest difference is iOS requirement: E.A.R. at 13.0 against iOptron Commander (iOS)'s 18.6. 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.

iOptron Commander (iOS) ships an update every 6 months, E.A.R. every 7 months. Both last shipped on October 2, 2026.

## The numbers

| Metric | iOptron Commander (iOS) | E.A.R. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (14 ratings)](https://appshunter.io/ios/app/ioptron-commander-ios/id1626958667/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 6.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 7 months |
| Monetization | Free | — |
| Size | 24 MB | 51 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [成城 徐](https://appshunter.io/developer/564078964) | [Zero Plus Technology Co.,Ltd.](https://appshunter.io/developer/1536723252) |

## What reviewers say

### iOptron Commander (iOS)

[App page](https://appshunter.io/ios/app/ioptron-commander-ios/id1626958667)

Control your iOptron telescope mount remotely using your iOS device. This utility allows for basic functions like slewing to celestial objects, syncing time and location, and managing compatible mount series.

**Highlights:** Remote telescope mount control, Slew to stars and deepsky objects, Sync time and site from iOS, Supports HEM, HAE, HAZ, CEM, GEM series mounts, Basic control functions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### E.A.R.

[App page](https://appshunter.io/ios/app/ear/id6746743841)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iOptron Commander (iOS) free?

iOptron Commander (iOS) is free to download, with no in-app purchases.

### Is E.A.R. free?

E.A.R. is free to download, with no in-app purchases.

### Do iOptron Commander (iOS) or E.A.R. have ads?

Neither iOptron Commander (iOS) nor E.A.R. shows ads.

### Which is updated more often, iOptron Commander (iOS) or E.A.R.?

iOptron Commander (iOS) ships an update every 6 months, and E.A.R. every 7 months. Most recently, iOptron Commander (iOS) was updated on October 2, 2026 and E.A.R. on October 2, 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.*