# Apollon vs Seiql

The clearest difference is update cadence: Seiql at every 5 weeks against Apollon's every 15 months. Apollon's advantage is iOS requirement (15.0 vs 17.0). 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.

Apollon ships an update every 15 months, Seiql every 5 weeks. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Apollon | Seiql |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/apollon-uml-modeling-editor/id6474762031/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TUM Applied Education Technologies](https://appshunter.io/developer/1722474982) | [Umit UZ](https://appshunter.io/developer/1842858860) |

## What reviewers say

### Apollon

[App page](https://appshunter.io/ios/app/apollon-uml-modeling-editor/id6474762031)

Create UML and software design diagrams on your iPhone and iPad. Supports 13 notations, templates, and offline work. Export to various formats or share for collaboration.

**Highlights:** 13 diagram notations, Templates and blank canvas, Touch-friendly interface, Offline diagram creation, Export to SVG, PNG, PDF, PPTX, JSON, Share for collaboration

**In-app purchases:** none


### Seiql

[App page](https://appshunter.io/ios/app/seiql-learn-coding-lang-and-sql/id6758354484)

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

**In-app purchases:** none


## Frequently asked questions

### Is Apollon free?

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

### Is Seiql free?

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

### Do Apollon or Seiql have ads?

Neither Apollon nor Seiql shows ads.

### Which is updated more often, Apollon or Seiql?

Apollon ships an update every 15 months, and Seiql every 5 weeks. Most recently, Apollon was updated on October 13, 2026 and Seiql on September 28, 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.*