# JDCELearn vs Engineering Formulas

The clearest difference is in-app purchases: JDCELearn at none against Engineering Formulas's 3. JDCELearn also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

JDCELearn ships an update every 3 weeks, Engineering Formulas every 2 months. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | JDCELearn | Engineering Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 53 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Shaira Marie De La Cruz](https://appshunter.io/developer/1831450545) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### JDCELearn

[App page](https://appshunter.io/ios/app/jdcelearn/id6749612000)

**Features:** 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 JDCELearn free?

JDCELearn 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 JDCELearn or Engineering Formulas have ads?

Neither JDCELearn nor Engineering Formulas shows ads.

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

JDCELearn ships an update every 3 weeks, and Engineering Formulas every 2 months. Most recently, JDCELearn was updated on September 17, 2026 and Engineering Formulas on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*