# Back in Time vs Cassini HD

The clearest difference is price: Cassini HD at $1.99 against Back in Time's $7.99. Cassini HD also leads on update cadence (every 2 months vs every 7 months) and review sentiment (94% vs 84%). Back in Time's advantage is rating (4.6 vs 4.3) and ratings volume (25 vs 6). On ads, in-app purchases, monetization model and device support there is nothing between them.

Back in Time costs $7.99 and Cassini HD $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Back in Time holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 25 and 6 respectively. Written reviews complicate that: 84% of Back in Time's written reviews are positive against 94% of Cassini HD's, so the app with the better star average is not the one people write more warmly about.

Back in Time ships an update every 7 months, Cassini HD every 2 months. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Back in Time | Cassini HD |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | **[4.6 (25 ratings)](https://appshunter.io/ios/app/back-in-time/id450345693/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/cassini-hd/id556755648/reviews) |
| Number of ratings | **25** | 6 |
| Positive reviews | 83.7% of reviews | **94.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 836 MB | 124 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Landka](https://appshunter.io/developer/450345696) | [Thinx Media Interactive LLC](https://appshunter.io/developer/556755791) |

## What reviewers say

### Back in Time

[App page](https://appshunter.io/ios/app/back-in-time/id450345693)

Explore the history of the Universe, Earth, Life, and Civilization through an immersive, interactive journey. This app uses custom animations, timelines, and interesting facts to bring historical events to life. It's designed to help users understand the connections between events and see the bigger picture.

**Highlights:** Interactive timeline of events, Custom animations and videos, Over 350 remarkable images, Little-known interesting facts, Offline access, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Cassini HD

[App page](https://appshunter.io/ios/app/cassini-hd/id556755648)

Explore Saturn and its moons through a stunning collection of over 960 NASA images. Navigate an alien world with interactive maps and detailed captions. Save and share your favorite discoveries.

**Highlights:** Over 960 NASA images of Saturn and moons, Interactive navigation map and thumbnails, Detailed image captions, Add images to favorites, Save images to photo roll, Social media sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back in Time free?

Back in Time costs $7.99, with no in-app purchases.

### Is Cassini HD free?

Cassini HD costs $1.99, with no in-app purchases.

### Which has better reviews, Back in Time or Cassini HD?

Back in Time is rated higher. Back in Time averages 4.6 out of 5 from 25 ratings, while Cassini HD averages 4.3 from 6 ratings.

### Do Back in Time or Cassini HD have ads?

Neither Back in Time nor Cassini HD shows ads.

### Which is updated more often, Back in Time or Cassini HD?

Back in Time ships an update every 7 months, and Cassini HD every 2 months. Most recently, Back in Time was updated on October 7, 2026 and Cassini HD on October 21, 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.*