# 608 Practice vs HVACR Learning Network by ESCO

The clearest difference is review sentiment: 608 Practice at 60% against HVACR Learning Network by ESCO's 0%. 608 Practice also leads on rating (3.9 vs 1.3) and in-app purchases (none vs 1). HVACR Learning Network by ESCO's advantage is price (Free vs $12.99). On update cadence, ads, monetization model and device support there is nothing between them.

HVACR Learning Network by ESCO is free to download; 608 Practice costs $12.99 up front. HVACR Learning Network by ESCO sells 1 one-off in-app purchase. 608 Practice asks for nothing beyond the download.

608 Practice holds the better App Store score, 3.9 against 1.3. That said, the two scores are not equally well evidenced: 608 Practice has 120 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of 608 Practice's written reviews are positive against 0% of HVACR Learning Network by ESCO's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 608 Practice | HVACR Learning Network by ESCO |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[3.9 (120 ratings)](https://appshunter.io/ios/app/608-practice/id1422450628/reviews)** | [1.3 (4 ratings)](https://appshunter.io/ios/app/hvacr-learning-network-by-esco/id6504534269/reviews) |
| Number of ratings | **120** | 4 |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | Free |
| Best chart rank | **#7** | — |
| Size | 28 MB | 65 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [After Hours Data Systems LLC](https://appshunter.io/developer/573215695) | [Esco Institute Ltd](https://appshunter.io/developer/1752723314) |

## What reviewers say

### 608 Practice

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

**Currently charting:** #7 Top Paid · Education, #93 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


### HVACR Learning Network by ESCO

[App page](https://appshunter.io/ios/app/hvacr-learning-network-by-esco/id6504534269)

Access HVACR courses, communities, and resources on the go. Stay updated with industry trends and engage with peers. Ideal for professionals and students preparing for certifications and sharpening technical skills.

**Highlights:** Access enrolled courses and study materials, Stay updated on industry trends, Engage with HVACR professionals, Receive important notifications, Access specialized learning groups

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Low GWP Refrigerant Safety | $39.95 | one-time |


## Frequently asked questions

### Is 608 Practice free?

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

### Is HVACR Learning Network by ESCO free?

HVACR Learning Network by ESCO is free to download, with in-app purchases available.

### Which has better reviews, 608 Practice or HVACR Learning Network by ESCO?

608 Practice is rated higher. 608 Practice averages 3.9 out of 5 from 120 ratings, while HVACR Learning Network by ESCO averages 1.3 from 4 ratings.

### Do 608 Practice or HVACR Learning Network by ESCO have ads?

Neither 608 Practice nor HVACR Learning Network by ESCO shows ads.

### Which is updated more often, 608 Practice or HVACR Learning Network by ESCO?

608 Practice ships an update every 6 weeks, and HVACR Learning Network by ESCO every 6 weeks. Most recently, 608 Practice was updated on October 29, 2026 and HVACR Learning Network by ESCO on October 24, 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.*