# RefTech vs Dry Tools

The clearest difference is review sentiment: Dry Tools at 100% against RefTech's 0%. Dry Tools also leads on rating (5.0 vs 2.7) and in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

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

Dry Tools holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 0% of RefTech's written reviews are positive against 100% of Dry Tools's.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 13, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | RefTech | Dry Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/reftech/id1209881606/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/dry-tools/id1462240541/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Subscription | **Free** |
| Size | 6 MB | 45 MB |
| Requires iOS | 13.4 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Blue Mountain Consulting Inc](https://appshunter.io/developer/1143744720) | [CLIMATE BY DESIGN INTERNATIONAL, INC.](https://appshunter.io/developer/1462240540) |

## What reviewers say

### RefTech

[App page](https://appshunter.io/ios/app/reftech/id1209881606)

This diagnostic tool assists in troubleshooting commercial refrigeration systems up to 7.5 HP. Input sensor data to receive likely diagnoses and suggested repair steps. Version 1.3 adds Bluetooth connectivity for specific temperature and pressure probes.

**Highlights:** Refrigeration system diagnostics, Troubleshooting up to 7.5 HP, Pressure and temperature sensor input, Likely diagnosis generation, Repair suggestions, Bluetooth probe connectivity (v1.3)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RefTech Subscriptions | $9.99 | one-time |


### Dry Tools

[App page](https://appshunter.io/ios/app/dry-tools/id1462240541)

This app provides HVAC professionals and students with essential calculation tools, including air stream mixing, HVAC formulas, lead time planning, and a psychrometric calculator with weather data. It also offers educational content and industry-specific terminology.

**Highlights:** Air Stream Mixing Calculator, HVAC Formulas, Lead Time Wheel, Psychrometric Calculator, Integrated Weather Data, Educational Content, Industry Glossary

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RefTech free?

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

### Is Dry Tools free?

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

### Which has better reviews, RefTech or Dry Tools?

Dry Tools is rated higher. RefTech averages 2.7 out of 5 from 3 ratings, while Dry Tools averages 5.0 from 5 ratings.

### Do RefTech or Dry Tools have ads?

Neither RefTech nor Dry Tools shows ads.

### Which is updated more often, RefTech or Dry Tools?

RefTech ships an update every 6 months, and Dry Tools every 6 months. Most recently, RefTech was updated on September 13, 2026 and Dry Tools on June 11, 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.*