# Idle Energy Empire vs Silent Control

The clearest difference is in-app purchases: Silent Control at none against Idle Energy Empire's 10. Idle Energy Empire's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence and ads there is nothing between them.

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

Idle Energy Empire ships an update every 3 days, Silent Control every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Idle Energy Empire | Silent Control |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 273 MB | 9 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [SOZAP](https://appshunter.io/developer/952456051) | [Essa Alqahtani](https://appshunter.io/developer/1895750974) |

## What reviewers say

### 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


### Silent Control

[App page](https://appshunter.io/ios/app/silent-control/id6808949201)

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

**In-app purchases:** none


## Frequently asked questions

### Is Idle Energy Empire free?

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

### Is Silent Control free?

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

### Do Idle Energy Empire or Silent Control have ads?

Both Idle Energy Empire and Silent Control show ads.

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

Idle Energy Empire ships an update every 3 days, and Silent Control every 2 days. Most recently, Idle Energy Empire was updated on October 30, 2026 and Silent Control 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.*