# iOptron Commander (iOS) vs Vi

The clearest difference is update cadence: Vi at every 2 months against iOptron Commander (iOS)'s every 6 months. Vi also leads on iOS requirement (14.1 vs 18.6). On price, ads, 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.

iOptron Commander (iOS) ships an update every 6 months, Vi every 2 months. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | iOptron Commander (iOS) | Vi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (15 ratings)](https://appshunter.io/ios/app/ioptron-commander-ios/id1626958667/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 6.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 24 MB | 4 MB |
| Requires iOS | 18.6 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [成城 徐](https://appshunter.io/developer/564078964) | [Pisharodi Medicals Inc.](https://appshunter.io/developer/1699815137) |

## 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


### Vi

[App page](https://appshunter.io/ios/app/vi-cap/id6455041541)

**Features:** macOS Compatibility

**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 Vi free?

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

### Do iOptron Commander (iOS) or Vi have ads?

Neither iOptron Commander (iOS) nor Vi shows ads.

### Which is updated more often, iOptron Commander (iOS) or Vi?

iOptron Commander (iOS) ships an update every 6 months, and Vi every 2 months. Most recently, iOptron Commander (iOS) was updated on October 25, 2026 and Vi on October 9, 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.*