# CassiniMIMI vs Pocket Planets

The clearest difference is ads: CassiniMIMI at none against Pocket Planets's shown. CassiniMIMI also leads on review sentiment (100% vs 67%) and rating (5.0 vs 4.6). Pocket Planets's advantage is ratings volume (22 vs 2). On price, 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.

CassiniMIMI holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Pocket Planets has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of CassiniMIMI's written reviews are positive against 67% of Pocket Planets's.

CassiniMIMI ships an update weekly, Pocket Planets every 3 weeks. The most recent releases landed on October 8, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CassiniMIMI | Pocket Planets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cassinimimi/id1153077273/reviews)** | [4.6 (22 ratings)](https://appshunter.io/ios/app/pocket-planets/id1496547610/reviews) |
| Number of ratings | 2 | **22** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 19 MB | 66 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johns Hopkins University Applied Physics Laboratory](https://appshunter.io/developer/473217885) | [Ad Lunam Kereskedelmi es Szolgaltato Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1496547609) |

## What reviewers say

### 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


### Pocket Planets

[App page](https://appshunter.io/ios/app/pocket-planets/id1496547610)

Explore our solar system with detailed information on planets, moons, and astronauts. Track who is currently in space and receive notifications for new launches. Access NASA images and compare celestial body characteristics.

**Highlights:** Detailed planet and moon data, Astronaut information and missions, Real-time space occupancy, Launch notifications, NASA image gallery, Celestial body comparisons

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

**In-app purchases:** none


## Frequently asked questions

### Is CassiniMIMI free?

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

### Is Pocket Planets free?

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

### Which has better reviews, CassiniMIMI or Pocket Planets?

CassiniMIMI is rated higher. CassiniMIMI averages 5.0 out of 5 from 2 ratings, while Pocket Planets averages 4.6 from 22 ratings.

### Do CassiniMIMI or Pocket Planets have ads?

Pocket Planets shows ads; CassiniMIMI does not.

### Which is updated more often, CassiniMIMI or Pocket Planets?

CassiniMIMI ships an update weekly, and Pocket Planets every 3 weeks. Most recently, CassiniMIMI was updated on October 8, 2026 and Pocket Planets on September 8, 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.*