# Katasymbol vs IRF Aurora Alert

The clearest difference is review sentiment: IRF Aurora Alert at 100% against Katasymbol's 26%. IRF Aurora Alert also leads on update cadence (every 4 days vs monthly). Katasymbol's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Katasymbol ships an update monthly, IRF Aurora Alert every 4 days. The most recent releases landed on September 28, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Katasymbol | IRF Aurora Alert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (276 ratings)](https://appshunter.io/ios/app/katasymbol/id1663408877/reviews)** | — |
| Number of ratings | **276** | — |
| Positive reviews | 25.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 218 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Supvan Information Technology Co., Ltd.](https://appshunter.io/developer/1663408879) | [Swedish Institute of Space Physics](https://appshunter.io/developer/1656031891) |

## What reviewers say

### Katasymbol

[App page](https://appshunter.io/ios/app/katasymbol/id1663408877)

This app allows you to easily create and print custom labels from your mobile device. It offers a wide variety of templates and editing tools, including text, images, and data imports. Connect via Bluetooth for quick and convenient printing.

**Highlights:** Multi-functional editing tools, Rich selection of templates, Diverse design choices, Bluetooth connectivity, Local file storage, Instant printing

**Features:** Vision Pro support

**In-app purchases:** none


### IRF Aurora Alert

[App page](https://appshunter.io/ios/app/irf-aurora-alert/id6466981930)

Receive timely notifications when the aurora borealis is visible near Kiruna, Sweden. This app helps you predict and experience the northern lights by alerting you to optimal viewing conditions.

**Highlights:** Aurora visibility notifications, Optimized for Kiruna, Sweden, Predicts aurora viewing conditions, Alerts for dark, clear skies, Minimizes light pollution impact

**In-app purchases:** none


## Frequently asked questions

### Is Katasymbol free?

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

### Is IRF Aurora Alert free?

IRF Aurora Alert is free to download, with no in-app purchases.

### Do Katasymbol or IRF Aurora Alert have ads?

Neither Katasymbol nor IRF Aurora Alert shows ads.

### Which is updated more often, Katasymbol or IRF Aurora Alert?

Katasymbol ships an update monthly, and IRF Aurora Alert every 4 days. Most recently, Katasymbol was updated on September 28, 2026 and IRF Aurora Alert on June 1, 2026.

---

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