# Zero waste vs Koolny

The clearest difference is update cadence: Koolny at every 3 weeks against Zero waste's every 12 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.

Zero waste ships an update every 12 months, Koolny every 3 weeks. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Zero waste | Koolny |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Size | 58 MB | 56 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AHMED ZAYATI](https://appshunter.io/developer/1830589322) | [Salma BEN HADJ ALI](https://appshunter.io/developer/1879349853) |

## What reviewers say

### Zero waste

[App page](https://appshunter.io/ios/app/zero-waste/id6749467802)

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

**In-app purchases:** none


### Koolny

[App page](https://appshunter.io/ios/app/koolny/id6759536140)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zero waste free?

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

### Is Koolny free?

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

### Do Zero waste or Koolny have ads?

Neither Zero waste nor Koolny shows ads.

### Which is updated more often, Zero waste or Koolny?

Zero waste ships an update every 12 months, and Koolny every 3 weeks. Most recently, Zero waste was updated on September 10, 2026 and Koolny on September 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*