# 608 Practice vs Visual3D App

The clearest difference is price: Visual3D App at Free against 608 Practice's $12.99. 608 Practice's advantage is in-app purchases (none vs 1) and chart position (#21 vs unranked). On update cadence, ads, device support and iOS requirement there is nothing between them.

Visual3D App is free to download; 608 Practice costs $12.99 up front. Visual3D App sells 1 in-app purchase, starting at $12.95 per month. 608 Practice asks for nothing beyond the download.

608 Practice ships an update every 6 weeks, Visual3D App every 2 months. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 608 Practice | Visual3D App |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[3.9 (118 ratings)](https://appshunter.io/ios/app/608-practice/id1422450628/reviews)** | — |
| Number of ratings | **118** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Best chart rank | **#21** | — |
| Size | 28 MB | 168 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [After Hours Data Systems LLC](https://appshunter.io/developer/573215695) | [Nauman Innovation Group LLC](https://appshunter.io/developer/1764933586) |

## What reviewers say

### 608 Practice

[App page](https://appshunter.io/ios/app/608-practice/id1422450628)

**Currently charting:** #21 Top Paid · Education, #158 Top Paid (US App Store)

Prepare for your EPA 608 certification with hundreds of up-to-date practice questions. The app offers both a practice mode and a timed test mode with detailed review to help you identify areas needing improvement across Core, Type I, Type II, and Type III exams.

**Highlights:** Hundreds of practice questions, Up-to-date content (2018-2020), Core, Type I, II, III exam sections, Practice mode, Timed test mode, Review missed questions

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

**In-app purchases:** none

**What reviewers like**

- 💯 Questions similar to test
- ✅ Helped pass exam
- 👍 Great study tool
- 💰 Worth the price
- 📚 Comprehensive content

**What reviewers complain about**

- 🐛 Outdated questions
- 🐛 App bugs and glitches
- 🐛 Poor optimization
- 🐛 Incorrect answers provided
- 🐛 Unstable performance

**Reported bugs**

- App crashes
- App freezes
- Screen rotation causes app to stop working
- Answers marked incorrectly
- App not working with iOS 13

**Requested features**

- Restore old version
- Allow viewing all questions
- Add mode for fewer questions
- Shuffle questions option
- Bookmark questions


### Visual3D App

[App page](https://appshunter.io/ios/app/visual3d-app/id6670464988)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single User Package | $12.95 | per month |


## Frequently asked questions

### Is 608 Practice free?

608 Practice costs $12.99, with no in-app purchases.

### Is Visual3D App free?

Visual3D App is free to download, with in-app purchases available.

### Do 608 Practice or Visual3D App have ads?

Neither 608 Practice nor Visual3D App shows ads.

### Which is updated more often, 608 Practice or Visual3D App?

608 Practice ships an update every 6 weeks, and Visual3D App every 2 months. Most recently, 608 Practice was updated on October 10, 2026 and Visual3D App on September 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.*