# Ref Tools vs Liner Life

The clearest difference is rating: Liner Life at 5.0 against Ref Tools's 3.9. Liner Life also leads on iOS requirement (8.0 vs 15.0). Ref Tools's advantage is ratings volume (52 vs 1). 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.

Liner Life 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.

## The numbers

| Metric | Ref Tools | Liner Life |
| --- | --- | --- |
| 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/liner-life/id1165330014/reviews)** |
| Number of ratings | **52** | 1 |
| Positive reviews | 57.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | Free |
| Size | 98 MB | 17 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [DeLaval International AB](https://appshunter.io/developer/554600723) |

## 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


### Liner Life

[App page](https://appshunter.io/ios/app/liner-life/id1165330014)

This app helps dairy farmers calculate the optimal time to change milking liners. It provides recommendations based on usage and dates for upcoming changes, ensuring farm performance and hygiene.

**Highlights:** Calculate next milking liner change, Recommendation based on 2500 milkings or 180 days, View next four recommended change dates, Add change dates to calendar, Simple and easy to use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ref Tools free?

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

### Is Liner Life free?

Liner Life is free to download, with no in-app purchases.

### Which has better reviews, Ref Tools or Liner Life?

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

### Do Ref Tools or Liner Life have ads?

Neither Ref Tools nor Liner Life shows ads.

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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.*