# API 570 Highlights Practices vs Easy Isometric

The clearest difference is rating: API 570 Highlights Practices at 5.0 against Easy Isometric's 2.6. API 570 Highlights Practices also leads on in-app purchases (none vs 2) and iOS requirement (9.1 vs 12.0). Easy Isometric's advantage is ratings volume (57 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Easy Isometric sells 2 in-app purchases, starting at $0.99 per month. API 570 Highlights Practices asks for nothing beyond the download.

API 570 Highlights Practices holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Easy Isometric has 57 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | API 570 Highlights Practices | Easy Isometric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/api-570-highlights-practices/id1343650992/reviews)** | [2.6 (57 ratings)](https://appshunter.io/ios/app/easy-isometric-pipe-iso-app/id1463534058/reviews) |
| Number of ratings | 1 | **57** |
| Positive reviews | — | 34.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Subscription |
| Size | 16 MB | 90 MB |
| Requires iOS | **9.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Hieu](https://appshunter.io/developer/1323491316) | [Construkt Technologies Inc.](https://appshunter.io/developer/1463534057) |

## What reviewers say

### API 570 Highlights Practices

[App page](https://appshunter.io/ios/app/api-570-highlights-practices/id1343650992)

This free version offers a glimpse into piping inspection practices and exam questions. The full version provides over 1000 questions covering all sections of the API 570 Test.

**Highlights:** Practice questions, Exam simulations, Covers API 570 test sections, Free version available, Full version with 1000+ questions

**Features:** macOS Compatibility

**In-app purchases:** none


### Easy Isometric

[App page](https://appshunter.io/ios/app/easy-isometric-pipe-iso-app/id1463534058)

Create accurate pipe isometric drawings on your iPad or iPhone. This app automates calculations and labeling, generating bills of materials and PDF reports for efficient fabrication and purchasing.

**Highlights:** Automated dimension calculations, Integrated ASME and ASTM standards, Bill of Materials generator, Automatic labeling of components, PDF sharing of drawings and BOM, Supports iPad and iPhone

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |

**What reviewers like**

- 👍 Easy to use interface
- 💡 Great for on-the-job layout
- 📝 Useful for BOM generation
- 🚀 App is fast and capable
- 🌟 Has potential for growth

**What reviewers complain about**

- ❌ Limited fitting selection
- 🐛 Frequent bugs and glitches
- 📉 Laggy performance
- 🚫 Cannot mix joint types
- 🚧 Difficult to fix mistakes

**Reported bugs**

- App is laggy
- Too many bugs
- Lost project due to bugs/app not being solid
- Lost hours of work due to bugs
- Sub tabs never show up

**Requested features**

- Add more essential fittings (reducers, adapters, unions)
- Include larger pipe sizes (up to 42in)
- Add more instruments/fittings/valves (PIVs)
- Allow users to specify pipe materials, valve types, fitting types
- Add studs and gaskets selection


## Frequently asked questions

### Is API 570 Highlights Practices free?

API 570 Highlights Practices is free to download, with no in-app purchases.

### Is Easy Isometric free?

Easy Isometric is free to download, with in-app purchases available.

### Which has better reviews, API 570 Highlights Practices or Easy Isometric?

API 570 Highlights Practices is rated higher. API 570 Highlights Practices averages 5.0 out of 5 from 1 ratings, while Easy Isometric averages 2.6 from 57 ratings.

### Do API 570 Highlights Practices or Easy Isometric have ads?

Neither API 570 Highlights Practices nor Easy Isometric shows ads.

### Which is updated more often, API 570 Highlights Practices or Easy Isometric?

API 570 Highlights Practices ships an update every 2 months, and Easy Isometric every 2 months. Most recently, API 570 Highlights Practices was updated on October 15, 2026 and Easy Isometric on October 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.*