# KOJI Filter App vs Env Charging

The clearest difference is update cadence: Env Charging at every 2 months against KOJI Filter App's every 6 months. 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.

KOJI Filter App ships an update every 6 months, Env Charging every 2 months. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KOJI Filter App | Env Charging |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 74 MB | 86 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harren Chua](https://appshunter.io/developer/1546545104) | [Envision Charging LLC](https://appshunter.io/developer/1805156232) |

## What reviewers say

### KOJI Filter App

[App page](https://appshunter.io/ios/app/koji-filter-app/id1546942830)

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

**In-app purchases:** none


### Env Charging

[App page](https://appshunter.io/ios/app/env-charging/id6743937449)

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

**In-app purchases:** none


## Frequently asked questions

### Is KOJI Filter App free?

KOJI Filter App is free to download, with no in-app purchases.

### Is Env Charging free?

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

### Do KOJI Filter App or Env Charging have ads?

Neither KOJI Filter App nor Env Charging shows ads.

### Which is updated more often, KOJI Filter App or Env Charging?

KOJI Filter App ships an update every 6 months, and Env Charging every 2 months. Most recently, KOJI Filter App was updated on September 15, 2026 and Env Charging on September 18, 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.*