# Idle Space Mining vs Energy Foundry

The clearest difference is rating: Energy Foundry at 5.0 against Idle Space Mining's 4.3. Energy Foundry also leads on ads (none vs shown). Idle Space Mining's advantage is ratings volume (4 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Idle Space Mining sells 6 one-off in-app purchases and Energy Foundry sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Energy Foundry holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

## The numbers

| Metric | Idle Space Mining | Energy Foundry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/idle-space-mining/id6790513254/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/energy-foundry/id6806848295/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| 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) | [RICCARDO STELLA](https://appshunter.io/developer/6806848297) |

## 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 |


### Energy Foundry

[App page](https://appshunter.io/ios/app/energy-foundry/id6806848295)

Build a growing energy economy starting with a single Mote. Construct machines, unlock new energies, complete quests, and design custom machines to optimize production. This minimalist text-based idle game focuses on compounding systems and progressive upgrades.

**Highlights:** Build an expanding energy economy, Construct machines in your Foundry, Unlock higher energies, Complete quests, Prestige for permanent power, Design custom machines

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Surge Cores | $0.99 | one-time |
| 100 Surge Cores | $1.99 | one-time |


## Frequently asked questions

### Is Idle Space Mining free?

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

### Is Energy Foundry free?

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

### Which has better reviews, Idle Space Mining or Energy Foundry?

Energy Foundry is rated higher. Idle Space Mining averages 4.3 out of 5 from 4 ratings, while Energy Foundry averages 5.0 from 1 ratings.

### Do Idle Space Mining or Energy Foundry have ads?

Idle Space Mining shows ads; Energy Foundry does not.

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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.*