# Ref Tools vs Sporlan Tech Check

The clearest difference is rating: Sporlan Tech Check at 4.6 against Ref Tools's 3.9. Sporlan Tech Check also leads on review sentiment (100% vs 58%). Ref Tools's advantage is update cadence (every 5 weeks vs every 3 months) and ratings volume (52 vs 10). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sporlan Tech Check holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Ref Tools has 52 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 58% of Ref Tools's written reviews are positive against 100% of Sporlan Tech Check's.

Ref Tools ships an update every 5 weeks, Sporlan Tech Check every 3 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Ref Tools | Sporlan Tech Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (52 ratings)](https://appshunter.io/ios/app/ref-tools/id472312541/reviews) | **[4.6 (10 ratings)](https://appshunter.io/ios/app/sporlan-tech-check/id1267386360/reviews)** |
| Number of ratings | **52** | 10 |
| Positive reviews | 57.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 98 MB | 293 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Rodrigo Miranda](https://appshunter.io/developer/1742641426) |

## 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


### Sporlan Tech Check

[App page](https://appshunter.io/ios/app/sporlan-tech-check/id1267386360)

This app allows users to interface with the Sporlan S3C Case controller solution. It enables viewing case parameters, process values, graphing sensors, and temporarily overriding EEVs, EEPRs, and solenoids for easy troubleshooting.

**Highlights:** View current operation values, Graph selected sensors, Temporary override of EEVs, EEPRs, and solenoids, Export controller data to CSV, Troubleshoot refrigeration cases remotely

**In-app purchases:** none


## Frequently asked questions

### Is Ref Tools free?

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

### Is Sporlan Tech Check free?

Sporlan Tech Check is free to download, with no in-app purchases.

### Which has better reviews, Ref Tools or Sporlan Tech Check?

Sporlan Tech Check is rated higher. Ref Tools averages 3.9 out of 5 from 52 ratings, while Sporlan Tech Check averages 4.6 from 10 ratings.

### Do Ref Tools or Sporlan Tech Check have ads?

Neither Ref Tools nor Sporlan Tech Check shows ads.

### Which is updated more often, Ref Tools or Sporlan Tech Check?

Ref Tools ships an update every 5 weeks, and Sporlan Tech Check every 3 months. Most recently, Ref Tools was updated on October 7, 2026 and Sporlan Tech Check 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.*