# Ref Tools vs Transitions Layouts

The clearest difference is rating: Transitions Layouts at 5.0 against Ref Tools's 3.9. Ref Tools's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Transitions Layouts sells 1 one-off in-app purchase. Ref Tools asks for nothing beyond the download.

Transitions Layouts holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Ref Tools has 52 ratings behind it against 1, so its average is the more settled of the two.

Ref Tools ships an update every 5 weeks, Transitions Layouts every 9 months. Both last shipped on October 17, 2026.

## The numbers

| Metric | Ref Tools | Transitions Layouts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (52 ratings)](https://appshunter.io/ios/app/ref-tools/id472312541/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/transitions-layouts/id6757512792/reviews)** |
| Number of ratings | **52** | 1 |
| Positive reviews | 57.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 98 MB | 47 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### Ref Tools

[App page](https://appshunter.io/ios/app/ref-tools/id472312541)

This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.

**Highlights:** Refrigerant Slider for P/T calculations, Solenoid valve coil testing tool, Refrigeration system troubleshooting guide, Product data finder, Spare parts ordering, Low-GWP refrigerant comparison, TXV Superheat optimization, Educational podcasts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Useful tool for HVAC/R techs
- 👍 Great idea for an app
- 👍 Best refrigeration and hvac app
- 👍 Useful App for HVACR
- 👍 Brilliant app

**What reviewers complain about**

- 🐛 Crashes instantly on launch
- 🐛 App won’t open on iPhone
- 🐛 Flashes up and disappears
- 🐛 Cannot open app
- 🐛 Immediately shuts off

**Reported bugs**

- CRASHED instantly on Mac Mini M4
- App won’t open on iPhone
- App flashes up and disappears
- Cannot open app
- Immediately shuts off since recent release

**Requested features**

- More residential AC information
- Troubleshooter for Residential & Commercial
- Add SP22 refrigerant
- Add R-11 refrigerant
- Add R-123 range down to 40 degrees


### Transitions Layouts

[App page](https://appshunter.io/ios/app/transitions-layouts/id6757512792)

This utility app generates precise layouts for various transition shapes used in fabrication and HVAC. It simplifies complex calculations for square-to-round, rectangular-to-round, and pyramid designs, reducing manual drafting and improving accuracy.

**Highlights:** Square to Round/Rectangular Layout, Round to Square/Rectangular Layout, Pyramid and Truncated Pyramid Layout, Multiple Joint Configurations, Flexible Line Divisions, Accurate Input Parameters

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is Ref Tools free?

Ref Tools is free to download, with no in-app purchases.

### Is Transitions Layouts free?

Transitions Layouts is free to download, with in-app purchases available.

### Which has better reviews, Ref Tools or Transitions Layouts?

Transitions Layouts is rated higher. Ref Tools averages 3.9 out of 5 from 52 ratings, while Transitions Layouts averages 5.0 from 1 ratings.

### Do Ref Tools or Transitions Layouts have ads?

Neither Ref Tools nor Transitions Layouts shows ads.

### Which is updated more often, Ref Tools or Transitions Layouts?

Ref Tools ships an update every 5 weeks, and Transitions Layouts every 9 months. Most recently, Ref Tools was updated on October 17, 2026 and Transitions Layouts on October 17, 2026.

---

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