# BoomiCAJ vs FEYN Charge

The clearest difference is ads: FEYN Charge at none against BoomiCAJ's shown. FEYN Charge also leads on update cadence (weekly vs every 2 months). BoomiCAJ's advantage is iOS requirement (12.4 vs 16.6). On price, 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.

BoomiCAJ ships an update every 2 months, FEYN Charge weekly. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BoomiCAJ | FEYN Charge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Size | 93 MB | 97 MB |
| Requires iOS | **12.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SFA SUSTAINABILITY SOLUTIONS SDN BHD](https://appshunter.io/developer/1723184402) | [Kazam EV Tech Pvt. Ltd.](https://appshunter.io/developer/1563868547) |

## What reviewers say

### BoomiCAJ

[App page](https://appshunter.io/ios/app/boomicaj/id6475045158)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### FEYN Charge

[App page](https://appshunter.io/ios/app/feyn-charge/id6757201340)

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

**In-app purchases:** none


## Frequently asked questions

### Is BoomiCAJ free?

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

### Is FEYN Charge free?

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

### Do BoomiCAJ or FEYN Charge have ads?

BoomiCAJ shows ads; FEYN Charge does not.

### Which is updated more often, BoomiCAJ or FEYN Charge?

BoomiCAJ ships an update every 2 months, and FEYN Charge weekly. Most recently, BoomiCAJ was updated on October 9, 2026 and FEYN Charge on October 10, 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.*