# HandyPlanet vs COSMOS

The clearest difference is rating: COSMOS at 5.0 against HandyPlanet's 1.0. COSMOS also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 6 weeks). HandyPlanet's advantage is monetization model (ad-supported vs paid). 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.

COSMOS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

HandyPlanet ships an update every 6 weeks, COSMOS every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HandyPlanet | COSMOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/handyplanet/id6758777962/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cosmos-3d-solar-system/id6792780408/reviews)** |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | **Ad-supported** | Paid |
| Size | 58 MB | 4 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ARAKAKI CAIO DAISUKE](https://appshunter.io/developer/1874933377) | [yuudai tasaki](https://appshunter.io/developer/1861229093) |

## What reviewers say

### HandyPlanet

[App page](https://appshunter.io/ios/app/handyplanet/id6758777962)

Explore the solar system in stunning 3D. Select planets like Earth or Mars to view them as interactive globes and learn key facts about their size, orbit, and moons. An engaging and simple educational tool for space enthusiasts.

**Highlights:** 3D planet models, Rotatable globes, Planet facts (size, distance, day/year length), Information on moons, Interactive solar system exploration

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

**In-app purchases:** none


### COSMOS

[App page](https://appshunter.io/ios/app/cosmos-3d-solar-system/id6792780408)

Explore a real-time 3D model of the solar system, accurately depicting planet positions based on orbital mechanics. Zoom in on celestial bodies, control time to view past or future sky events, and learn details about each planet. This app offers an ad-free, offline experience with a one-time purchase.

**Highlights:** Real-time planet and moon positions, Scrub through time for past/future views, Photo-realistic textures, Adjustable time scale, Free exploration with pinch and swipe, Detailed information on celestial bodies

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

**In-app purchases:** none


## Frequently asked questions

### Is HandyPlanet free?

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

### Is COSMOS free?

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

### Which has better reviews, HandyPlanet or COSMOS?

COSMOS is rated higher. HandyPlanet averages 1.0 out of 5 from 1 ratings, while COSMOS averages 5.0 from 3 ratings.

### Do HandyPlanet or COSMOS have ads?

HandyPlanet shows ads; COSMOS does not.

### Which is updated more often, HandyPlanet or COSMOS?

HandyPlanet ships an update every 6 weeks, and COSMOS every 2 weeks. Most recently, HandyPlanet was updated on October 28, 2026 and COSMOS on October 31, 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.*