# Nova USL vs Katt messenger

The clearest difference is in-app purchases: Nova USL at none against Katt messenger's 6. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Katt messenger sells 6 in-app purchases, starting at $4.99 per month. Nova USL asks for nothing beyond the download.

Nova USL ships an update fortnightly, Katt messenger weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Nova USL | Katt messenger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 61 MB | 114 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Bekbolot Zairbekov](https://appshunter.io/developer/1896550555) | [Andrei Baburin](https://appshunter.io/developer/1723846806) |

## What reviewers say

### Nova USL

[App page](https://appshunter.io/ios/app/nova-usl/id6768213314)

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

**In-app purchases:** none


### Katt messenger

[App page](https://appshunter.io/ios/app/katt-messenger/id6801121216)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $4.99 | per month |
| Plus | $9.99 | per month |
| Pro | $19.99 | per month |
| 30 tokens | $1.99 | one-time |
| 80 tokens | $4.99 | one-time |
| 180 tokens | $9.99 | one-time |


## Frequently asked questions

### Is Nova USL free?

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

### Is Katt messenger free?

Katt messenger is free to download, with in-app purchases available.

### Do Nova USL or Katt messenger have ads?

Neither Nova USL nor Katt messenger shows ads.

### Which is updated more often, Nova USL or Katt messenger?

Nova USL ships an update fortnightly, and Katt messenger weekly. Most recently, Nova USL was updated on October 28, 2026 and Katt messenger on October 24, 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.*