# KoOlis vs QR Generator

The clearest difference is in-app purchases: KoOlis at none against QR Generator's 3. KoOlis also leads on ads (none vs shown) and device support (3 vs 1). QR Generator's advantage is update cadence (daily vs fortnightly). On price there is nothing between them.

Both are free to download. QR Generator sells 3 in-app purchases, starting at $3.99 per 7 days. KoOlis asks for nothing beyond the download.

KoOlis ships an update fortnightly, QR Generator daily. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KoOlis | QR Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Daily** |
| Size | 97 MB | 27 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [UNDERSCOREHASH](https://appshunter.io/developer/1833084000) | [Patrick Watkins](https://appshunter.io/developer/1243607574) |

## What reviewers say

### KoOlis

[App page](https://appshunter.io/ios/app/koolis/id6751006777)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### QR Generator

[App page](https://appshunter.io/ios/app/qr-generator-pathqr/id6757371149)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Subscription | $3.99 | per 7 days |
| Yearly Pro Subscription | $19.99 | per year |
| Lifetime Pro Access | $49.99 | one-time |


## Frequently asked questions

### Is KoOlis free?

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

### Is QR Generator free?

QR Generator is free to download, with in-app purchases available.

### Do KoOlis or QR Generator have ads?

QR Generator shows ads; KoOlis does not.

### Which is updated more often, KoOlis or QR Generator?

KoOlis ships an update fortnightly, and QR Generator daily. Most recently, KoOlis was updated on September 9, 2026 and QR Generator 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.*