# EcoLution vs Idle Energy Empire

The clearest difference is in-app purchases: EcoLution at none against Idle Energy Empire's 10. Idle Energy Empire's advantage is update cadence (every 3 days vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Idle Energy Empire sells 10 one-off in-app purchases. EcoLution asks for nothing beyond the download.

EcoLution ships an update every 8 months, Idle Energy Empire every 3 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | EcoLution | Idle Energy Empire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (144 ratings)](https://appshunter.io/ios/app/idle-energy-empire/id6737407950/reviews)** |
| Number of ratings | — | **144** |
| Positive reviews | — | 40.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 273 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Jerome de Cock](https://appshunter.io/developer/1606364543) | [SOZAP](https://appshunter.io/developer/952456051) |

## What reviewers say

### EcoLution

[App page](https://appshunter.io/ios/app/ecolution/id1608599419)

**Features:** macOS Compatibility

**In-app purchases:** none


### Idle Energy Empire

[App page](https://appshunter.io/ios/app/idle-energy-empire/id6737407950)

Build and manage an energy empire in a post-apocalyptic wasteland. Harvest resources, produce batteries, upgrade machines, and defend your factory from zombie hordes. Expand your operations and connect the grid to survive and thrive.

**Highlights:** Resource management, Machine upgrades, Battery production, Electric train logistics, Grid connection gameplay, Zombie defense, Factory expansion

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $0.99 | one-time |
| Few gems | $1.99 | one-time |
| Gem Pack Offer | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Factory 2 Offer | $4.99 | one-time |
| Gems pack 2 | $4.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Factory 3 Offer | $6.99 | one-time |
| Gem pack 3 | $9.99 | one-time |
| Gem pack 5 | $19.99 | one-time |

**What reviewers like**

- 👍 No ads
- 🚀 Smooth gameplay
- 💡 Promotes awareness about clean energy
- 👍 Relaxing yet challenging
- 💡 Competitive edge with energy trading

**What reviewers complain about**

- 🐛 Button to progress not working
- 🐛 Glitchy opening animation
- 🐛 Tasks not visible on small screens
- 🔋 Frequent ads interrupting flow

**Reported bugs**

- Button to upgrade factory not working
- Stuck at loading screen
- Unable to progress past first factory

**Requested features**

- Add more factories (4, 5, 6)
- Paid version to remove ads
- Ability to scroll or resize tasks


## Frequently asked questions

### Is EcoLution free?

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

### Is Idle Energy Empire free?

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

### Do EcoLution or Idle Energy Empire have ads?

Both EcoLution and Idle Energy Empire show ads.

### Which is updated more often, EcoLution or Idle Energy Empire?

EcoLution ships an update every 8 months, and Idle Energy Empire every 3 days. Most recently, EcoLution was updated on November 7, 2026 and Idle Energy Empire on November 4, 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.*