# SQL vs COMath Premium

The clearest difference is price: COMath Premium at $0.99 against SQL's $5.99. COMath Premium also leads on update cadence (every 2 weeks vs every 5 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SQL costs $5.99 and COMath Premium $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SQL ships an update every 5 weeks, COMath Premium every 2 weeks. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SQL | COMath Premium |
| --- | --- | --- |
| Price | $5.99 | **$0.99** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/sql-er-diagram-pro/id1625278308/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 31 MB | 85 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### SQL

[App page](https://appshunter.io/ios/app/sql-er-diagram-pro/id1625278308)

Design, draw, and share entity relationship diagrams with this app. Generate SQL scripts from your diagrams and access study pages for SQL topics and syntax. Perfect for learning SQL graphically and textually.

**Highlights:** Design and draw ER diagrams, Generate SQL scripts from diagrams, Customizable canvas size, Automatic local saving, Study pages for SQL topics, Learn SQL syntax pages

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

**In-app purchases:** none


### COMath Premium

[App page](https://appshunter.io/ios/app/comath-premium/id6752225245)

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

**In-app purchases:** none


## Frequently asked questions

### Is SQL free?

SQL costs $5.99, with no in-app purchases.

### Is COMath Premium free?

COMath Premium costs $0.99, with no in-app purchases.

### Do SQL or COMath Premium have ads?

Neither SQL nor COMath Premium shows ads.

### Which is updated more often, SQL or COMath Premium?

SQL ships an update every 5 weeks, and COMath Premium every 2 weeks. Most recently, SQL was updated on September 24, 2026 and COMath Premium on October 1, 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.*