# Idle Chest vs Cosmius

The clearest difference is update cadence: Cosmius at every 4 days against Idle Chest's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Idle Chest sells 5 one-off in-app purchases and Cosmius sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Idle Chest ships an update every 10 days, Cosmius every 4 days. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Idle Chest | Cosmius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (109 ratings)](https://appshunter.io/ios/app/idle-chest/id6744372975/reviews)** | — |
| Number of ratings | **109** | — |
| Positive reviews | 80.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 192 MB | 98 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Thomas Gunzburger](https://appshunter.io/developer/1807389356) | [Umit Sancakli](https://appshunter.io/developer/1657372739) |

## What reviewers say

### Idle Chest

[App page](https://appshunter.io/ios/app/idle-chest/id6744372975)

Embark on a treasure-hunting adventure where every click earns rewards. Upgrade your skills, collect and enhance equipment, and unlock unique abilities. Discover the secrets of this world through engaging gameplay and an addictive incremental experience.

**Highlights:** Open various chests, Loot and upgrade equipment, Buy skill upgrades, Unlock unique skills, Discover game story

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underwater Background Skin | $3.99 | one-time |
| Underwater Chests Skin | $3.99 | one-time |
| Underwater Acolytes Skin | $3.99 | one-time |
| No Ads | $3.99 | one-time |
| Underwater Complete Skins Pack | $8.99 | one-time |

**What reviewers like**

- 👍 Fun short idle clicker
- 👍 Consistent theme
- 👍 Enjoyable experience
- 👍 Minimalistic but rewarding grind
- 💰 Non-intrusive ads

**What reviewers complain about**

- 🐛 Game breaking bug with 'Chosen One' minion
- 🔍 Difficult to compare tap damage to acolyte damage
- 🔍 Some explanations could be improved
- 🔍 Slightly linear progression

**Reported bugs**

- Progress resets or reverts
- Minions not working after equipping 'Chosen One'

**Requested features**

- Dark mode option
- Better UI for comparing damage sources


### Cosmius

[App page](https://appshunter.io/ios/app/cosmius/id6770520700)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmium Spark | $0.99 | one-time |
| Cosmium Core | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Permanent 2X Score | $0.99 | one-time |
| Cosmium Vault | $2.99 | one-time |
| Cosmium Singularity | $5.99 | one-time |


## Frequently asked questions

### Is Idle Chest free?

Idle Chest is free to download, with in-app purchases available.

### Is Cosmius free?

Cosmius is free to download, with in-app purchases available.

### Do Idle Chest or Cosmius have ads?

Both Idle Chest and Cosmius show ads.

### Which is updated more often, Idle Chest or Cosmius?

Idle Chest ships an update every 10 days, and Cosmius every 4 days. Most recently, Idle Chest was updated on October 19, 2026 and Cosmius on October 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.*