# CMB Maps — user reviews

> 6 indexed App Store user reviews of CMB Maps by Qingqing Mao, rated 4.00/5 from 14 ratings.

- Source: https://appshunter.io/ios/app/cmb-maps/id894952449/reviews
- App overview in markdown: https://appshunter.io/ios/app/cmb-maps/id894952449.md
- Rating breakdown: 5★ 9 · 4★ 2 · 3★ 0 · 2★ 0 · 1★ 3

## Most critical reviews (6 lowest-rated)

### 1/5 — Can’t be downloaded

*2025-07-07, version 1.0*

Developer needs to update this app or it needs to be removed from App Store.

### 1/5 — ITS TRASH

*2022-10-28, version 1.0*

I couldn’t get on the STUPID APP. IT KEPT TELLING ME TO UPDATE THE TRASHY DARN APP. PLEASE FIX THE UPDATING PROBLEM.PLSSS

### 4/5 — Good app that needs an update

*2022-08-26, version 1.0*

I’ve enjoyed this app on older IPhones and IPads. However, it needs an update to run on the new operating system. The Contact form doesn’t work so I’m hoping the author will see this. I look forward to using this app again.

### 5/5 — Love it!

*2015-07-17, version 1.0*

A fantastic for exploring the Universe!

### 5/5 — Simple and effective

*2014-08-03, version 1.0*

An excellent tool to demonstrate how the cosmic microwave background looks on the sky.

### 5/5 — Zoom and fade between 20+ years of CMB data

*2014-07-18, version 1.0*

Fun tool to look at CMB maps from the 3 major missions. I particularly like the sky reference overlay.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-25.*