# My Sky vs UnivMap

The clearest difference is in-app purchases: UnivMap at none against My Sky's 1. UnivMap also leads on update cadence (every 9 days vs every 3 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. My Sky sells 1 one-off in-app purchase. UnivMap asks for nothing beyond the download.

My Sky ships an update every 3 months, UnivMap every 9 days. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | My Sky | UnivMap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 62 MB | 31 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [哲 洪](https://appshunter.io/developer/1875789985) | [宇輝資訊有限公司](https://appshunter.io/developer/1888426874) |

## What reviewers say

### My Sky

[App page](https://appshunter.io/ios/app/my-sky-deep-sky-star-map/id6759360405)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate to the Developer | $0.99 | one-time |


### UnivMap

[App page](https://appshunter.io/ios/app/univmap/id6806794531)

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

**In-app purchases:** none


## Frequently asked questions

### Is My Sky free?

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

### Is UnivMap free?

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

### Do My Sky or UnivMap have ads?

Neither My Sky nor UnivMap shows ads.

### Which is updated more often, My Sky or UnivMap?

My Sky ships an update every 3 months, and UnivMap every 9 days. Most recently, My Sky was updated on October 25, 2026 and UnivMap on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*