# ROV Quiz vs Digital Electronics+

The clearest difference is in-app purchases: ROV Quiz at none against Digital Electronics+'s 6. ROV Quiz also leads on device support (5 vs 2) and iOS requirement (15.6 vs 17.0). Digital Electronics+'s advantage is update cadence (every 6 months vs every 32 months). On price and ads there is nothing between them.

Both are free to download. Digital Electronics+ sells 6 in-app purchases, starting at $9.99 per month. ROV Quiz asks for nothing beyond the download.

ROV Quiz ships an update every 32 months, Digital Electronics+ every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ROV Quiz | Digital Electronics+ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 105 MB | 24 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BARTOLI JOHAN](https://appshunter.io/developer/1317257810) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### ROV Quiz

[App page](https://appshunter.io/ios/app/rov-quiz/id1539137976)

Learn the fundamentals of ROV systems quickly with this engaging quiz app. Designed for industry professionals to share with others, it uses chapter-based quizzes to reinforce learning and improve understanding of complex topics in a short amount of time.

**Highlights:** Learn ROV system basics, Chapter-based quizzes, Reinforce learning, Share with colleagues and friends, Quick learning in 5 minutes

**In-app purchases:** none


### Digital Electronics+

[App page](https://appshunter.io/ios/app/digital-electronics-plus/id6747192806)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is ROV Quiz free?

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

### Is Digital Electronics+ free?

Digital Electronics+ is free to download, with in-app purchases available.

### Do ROV Quiz or Digital Electronics+ have ads?

Neither ROV Quiz nor Digital Electronics+ shows ads.

### Which is updated more often, ROV Quiz or Digital Electronics+?

ROV Quiz ships an update every 32 months, and Digital Electronics+ every 6 months. Most recently, ROV Quiz was updated on November 3, 2026 and Digital Electronics+ on October 30, 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.*