# WE vs ER Diagram AI

The clearest difference is review sentiment: WE at 100% against ER Diagram AI's 50%. WE also leads on in-app purchases (none vs 2). ER Diagram AI's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

WE ships an update every 4 months, ER Diagram AI fortnightly. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WE | ER Diagram AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/er-diagram-ai/id6711352942/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 15 MB | 56 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuerth Elektronik eiSos GmbH & Co. KG](https://appshunter.io/developer/962754647) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### WE

[App page](https://appshunter.io/ios/app/we-sensorble/id1642507035)

This application showcases Bluetooth LE and sensor capabilities using specific hardware. It enables building a connection between a smartphone and embedded hardware, demonstrating a versatile use case for prototyping various user applications.

**Highlights:** Bluetooth LE connection, Sensor data display, Hardware integration, Prototyping use cases, Firmware and source code available, Capacitor Framework by Ionic

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

**In-app purchases:** none


### ER Diagram AI

[App page](https://appshunter.io/ios/app/er-diagram-ai/id6711352942)

Design and visualize database schemas effortlessly with AI assistance. Quickly generate schemas from outlines, make detailed adjustments, and convert diagrams to SQL for various databases. Ideal for new development, reviews, collaboration, and learning.

**Highlights:** AI-assisted schema generation, Automatic SQL conversion, Intuitive editing, Multi-device support via Google Drive, Export and share diagrams, Text-based editing with Mermaid notation, Dark theme support

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

**In-app purchases (2)**

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


## Frequently asked questions

### Is WE free?

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

### Is ER Diagram AI free?

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

### Do WE or ER Diagram AI have ads?

Neither WE nor ER Diagram AI shows ads.

### Which is updated more often, WE or ER Diagram AI?

WE ships an update every 4 months, and ER Diagram AI fortnightly. Most recently, WE was updated on October 5, 2026 and ER Diagram AI on October 25, 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.*