# Idle Space Mining vs Compost Kings

The clearest difference is rating: Compost Kings at 5.0 against Idle Space Mining's 4.3. Compost Kings also leads on in-app purchases (none vs 6) and ads (none vs shown). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Idle Space Mining sells 6 one-off in-app purchases. Compost Kings asks for nothing beyond the download.

Compost Kings holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Idle Space Mining ships an update every 10 days, Compost Kings every 5 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Idle Space Mining | Compost Kings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/idle-space-mining/id6790513254/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/compost-kings/id6812955830/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 160 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ISAAC MICHAEL FRETT](https://appshunter.io/developer/1877499106) | [Jacob Landa](https://appshunter.io/developer/1784161782) |

## What reviewers say

### Idle Space Mining

[App page](https://appshunter.io/ios/app/idle-space-mining/id6790513254)

Dig through galaxies, merge miners to increase their strength, and build machines that mine while you're away. Discover new planets, upgrade your crew, and unlock powerful boosts to speed up your progress. Compete in timed events and earn rewards.

**Highlights:** Incremental mining gameplay, Miner merging and upgrading, Idle machine mining, Galaxy exploration, Dark Matter upgrades, Event planets with leaderboards, Cloud save functionality

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dark Matter Cache | $1.99 | one-time |
| Temporal Shunt | $2.99 | one-time |
| Deep Cryo Vault | $3.99 | one-time |
| Dark Matter Flask | $4.99 | one-time |
| Overclock | $4.99 | one-time |
| Dark Matter Reservoir | $9.99 | one-time |


### Compost Kings

[App page](https://appshunter.io/ios/app/compost-kings/id6812955830)

Manage a cozy worm farm by feeding kitchen scraps and merging worms to discover new species. Fulfill neighbor requests and compete in weekly county fairs for rewards. The farm continues to grow even when you're offline.

**Highlights:** Merge worms to discover new species, Fulfill neighbor orders, Compete in weekly county fairs, Idle gameplay with auto-feeders, Collect various worm types and items, Offline play

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

**In-app purchases:** none


## Frequently asked questions

### Is Idle Space Mining free?

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

### Is Compost Kings free?

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

### Which has better reviews, Idle Space Mining or Compost Kings?

Compost Kings is rated higher. Idle Space Mining averages 4.3 out of 5 from 4 ratings, while Compost Kings averages 5.0 from 4 ratings.

### Do Idle Space Mining or Compost Kings have ads?

Idle Space Mining shows ads; Compost Kings does not.

### Which is updated more often, Idle Space Mining or Compost Kings?

Idle Space Mining ships an update every 10 days, and Compost Kings every 5 days. Most recently, Idle Space Mining was updated on November 10, 2026 and Compost Kings 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.*