# GH vs Engineering Formulas

The clearest difference is in-app purchases: GH at none against Engineering Formulas's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. GH asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 24, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | GH | Engineering Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 26 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### GH

[App page](https://appshunter.io/ios/app/gh-300-github-copilot/id6752802528)

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

**In-app purchases:** none


### Engineering Formulas

[App page](https://appshunter.io/ios/app/engineering-formulas-engiref/id6758258119)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |
| Lifetime Access | $54.99 | one-time |


## Frequently asked questions

### Is GH free?

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

### Is Engineering Formulas free?

Engineering Formulas is free to download, with in-app purchases available.

### Do GH or Engineering Formulas have ads?

Neither GH nor Engineering Formulas shows ads.

### Which is updated more often, GH or Engineering Formulas?

GH ships an update every 2 months, and Engineering Formulas every 2 months. Most recently, GH was updated on September 24, 2026 and Engineering Formulas on August 18, 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.*