# CST Energy vs Connected?

The clearest difference is price: CST Energy at Free against Connected?'s $2.99. CST Energy also leads on iOS requirement (12.0 vs 17.0). Connected?'s advantage is update cadence (fortnightly vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

CST Energy is free to download; Connected? costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CST Energy ships an update every 4 months, Connected? fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CST Energy | Connected? |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 34 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [亘能科技有限公司](https://appshunter.io/developer/1764914977) | [rober buyle](https://appshunter.io/developer/1896479375) |

## What reviewers say

### CST Energy

[App page](https://appshunter.io/ios/app/cst-energy/id6667113293)

**Features:** macOS Compatibility

**In-app purchases:** none


### Connected?

[App page](https://appshunter.io/ios/app/connected/id6767484442)

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is CST Energy free?

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

### Is Connected? free?

Connected? costs $2.99, with no in-app purchases.

### Do CST Energy or Connected? have ads?

Neither CST Energy nor Connected? shows ads.

### Which is updated more often, CST Energy or Connected??

CST Energy ships an update every 4 months, and Connected? fortnightly. Most recently, CST Energy was updated on October 24, 2026 and Connected? on October 28, 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.*