# iEnergy vs KERONG Lock

The clearest difference is update cadence: KERONG Lock at weekly against iEnergy's every 4 months. KERONG Lock 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.

iEnergy ships an update every 4 months, KERONG Lock weekly. The most recent releases landed on October 15, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iEnergy | KERONG Lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 25 MB | 131 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen ZTE Software Co., Ltd.](https://appshunter.io/developer/1863573894) | [深圳市科荣实业有限公司](https://appshunter.io/developer/1475870198) |

## What reviewers say

### iEnergy

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

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

**In-app purchases:** none


### KERONG Lock

[App page](https://appshunter.io/ios/app/kerong-lock/id6578424967)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iEnergy free?

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

### Is KERONG Lock free?

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

### Do iEnergy or KERONG Lock have ads?

Neither iEnergy nor KERONG Lock shows ads.

### Which is updated more often, iEnergy or KERONG Lock?

iEnergy ships an update every 4 months, and KERONG Lock weekly. Most recently, iEnergy was updated on October 15, 2026 and KERONG Lock on October 27, 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.*