# Blue Set vs iEnergy

The clearest difference is update cadence: Blue Set at fortnightly against iEnergy's every 4 months. Blue Set also leads on iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Blue Set ships an update fortnightly, iEnergy every 4 months. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Blue Set | iEnergy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 33 MB | 25 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Connetech Electronics Technology Co., Ltd.](https://appshunter.io/developer/1671978781) | [Shenzhen ZTE Software Co., Ltd.](https://appshunter.io/developer/1863573894) |

## What reviewers say

### Blue Set

[App page](https://appshunter.io/ios/app/blue-set/id6446763876)

**Features:** macOS Compatibility

**In-app purchases:** none


### iEnergy

[App page](https://appshunter.io/ios/app/ienergy/id6544801425)

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

**In-app purchases:** none


## Frequently asked questions

### Is Blue Set free?

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

### Is iEnergy free?

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

### Do Blue Set or iEnergy have ads?

Neither Blue Set nor iEnergy shows ads.

### Which is updated more often, Blue Set or iEnergy?

Blue Set ships an update fortnightly, and iEnergy every 4 months. Most recently, Blue Set was updated on October 18, 2026 and iEnergy on October 15, 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.*