# Simple Sequence Diagram AI vs UMLite

The clearest difference is in-app purchases: UMLite at none against Simple Sequence Diagram AI's 2. Simple Sequence Diagram AI's advantage is update cadence (every 2 weeks vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Sequence Diagram AI sells 2 in-app purchases, starting at $4.99 per month. UMLite asks for nothing beyond the download.

Simple Sequence Diagram AI ships an update every 2 weeks, UMLite every 13 months. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Simple Sequence Diagram AI | UMLite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/umlite/id6751164479/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 13 months |
| Monetization | — | Free |
| Size | 68 MB | 2 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUKI TANAIKE](https://appshunter.io/developer/478558546) | [Rajeev Kalangi](https://appshunter.io/developer/1565830987) |

## What reviewers say

### Simple Sequence Diagram AI

[App page](https://appshunter.io/ios/app/simple-sequence-diagram-ai/id6711357061)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Sequence Flow Pro (Monthly) | $4.99 | per month |
| Simple Sequence Flow Pro (Annual) | $44.99 | per year |


### UMLite

[App page](https://appshunter.io/ios/app/umlite/id6751164479)

Quickly create, view, and share UML diagrams on your mobile device. Features a line-numbered editor for efficient diagramming and live previews to see your designs instantly. Export your creations and customize their appearance with various themes.

**Highlights:** Line-numbered editor, Live PlantUML rendering, Animated previews, Diagram export, Theme switching

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Sequence Diagram AI free?

Simple Sequence Diagram AI is free to download, with in-app purchases available.

### Is UMLite free?

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

### Do Simple Sequence Diagram AI or UMLite have ads?

Neither Simple Sequence Diagram AI nor UMLite shows ads.

### Which is updated more often, Simple Sequence Diagram AI or UMLite?

Simple Sequence Diagram AI ships an update every 2 weeks, and UMLite every 13 months. Most recently, Simple Sequence Diagram AI was updated on September 9, 2026 and UMLite on September 21, 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.*