# Space Images vs CassiniMIMI

The clearest difference is review sentiment: CassiniMIMI at 100% against Space Images's 63%. CassiniMIMI also leads on update cadence (weekly vs every 4 months) and rating (5.0 vs 4.6). Space Images's advantage is ratings volume (15 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CassiniMIMI holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Space Images has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of Space Images's written reviews are positive against 100% of CassiniMIMI's.

Space Images ships an update every 4 months, CassiniMIMI weekly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Space Images | CassiniMIMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (15 ratings)](https://appshunter.io/ios/app/space-images/id347075764/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cassinimimi/id1153077273/reviews)** |
| Number of ratings | **15** | 2 |
| Positive reviews | 63.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | Free |
| Size | 23 MB | 19 MB |
| Requires iOS | 17.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [Johns Hopkins University Applied Physics Laboratory](https://appshunter.io/developer/473217885) |

## What reviewers say

### Space Images

[App page](https://appshunter.io/ios/app/space-images/id347075764)

Explore breathtaking images from NASA missions, featuring planets, galaxies, and space technology. This app offers widgets for your home screen and StandBy mode, allowing you to view a slideshow while your device charges. You can also bookmark, search, and share your favorite celestial discoveries.

**Highlights:** Latest NASA space images, Widgets for home screen, StandBy mode slideshow, Image notifications, Search and browse categories, Bookmark and share images

**Features:** macOS Compatibility

**In-app purchases:** none


### CassiniMIMI

[App page](https://appshunter.io/ios/app/cassinimimi/id1153077273)

Explore stunning images and data from NASA's Cassini mission to Saturn. This app provides access to energetic particle data, ENA images, and spectrograms from Saturn's magnetosphere. Discover new scientific releases and browse daily updated plots and movies.

**Highlights:** Energetic charged particle environment study, Energetic Neutral Atom (ENA) imaging of Saturn, Spectrograms and plots from particle detectors, Access to NASA's Planetary Data System (PDS), Daily updated plots and movies, Selectable data by source, type, date, and style

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Images free?

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

### Is CassiniMIMI free?

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

### Which has better reviews, Space Images or CassiniMIMI?

CassiniMIMI is rated higher. Space Images averages 4.6 out of 5 from 15 ratings, while CassiniMIMI averages 5.0 from 2 ratings.

### Do Space Images or CassiniMIMI have ads?

Neither Space Images nor CassiniMIMI shows ads.

### Which is updated more often, Space Images or CassiniMIMI?

Space Images ships an update every 4 months, and CassiniMIMI weekly. Most recently, Space Images was updated on October 16, 2026 and CassiniMIMI 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.*