# iGearbox vs SQL

The clearest difference is rating: iGearbox at 3.0 against SQL's 1.0. iGearbox also leads on review sentiment (20% vs 0%) and ratings volume (6 vs 1). SQL's advantage is update cadence (every 5 weeks vs every 55 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

iGearbox costs $4.99 and SQL $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iGearbox holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: iGearbox has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 20% of iGearbox's written reviews are positive against 0% of SQL's.

iGearbox ships an update every 55 months, SQL every 5 weeks. The most recent releases landed on September 22, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | iGearbox | SQL |
| --- | --- | --- |
| Price | **$4.99** | $5.99 |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/igearbox/id451320370/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sql-er-diagram-pro/id1625278308/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 12 MB | 31 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### iGearbox

[App page](https://appshunter.io/ios/app/igearbox/id451320370)

This app provides interactive tools to calculate gearbox ratios for regular and planetary gearboxes. It features a drag-and-drop design environment for gear trains and a dynamic graphic simulation for planetary gear sets, aiding in understanding and calculation.

**Highlights:** Interactive gear train design, Planetary gear set simulation, Ratio and speed calculations, Multiple gear train configurations, Dynamic component motion animations, Symbolic ratio equations, Dropbox data upload

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iGearbox free?

iGearbox costs $4.99, with no in-app purchases.

### Is SQL free?

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

### Which has better reviews, iGearbox or SQL?

iGearbox is rated higher. iGearbox averages 3.0 out of 5 from 6 ratings, while SQL averages 1.0 from 1 ratings.

### Do iGearbox or SQL have ads?

Neither iGearbox nor SQL shows ads.

### Which is updated more often, iGearbox or SQL?

iGearbox ships an update every 55 months, and SQL every 5 weeks. Most recently, iGearbox was updated on September 22, 2026 and SQL on August 16, 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.*