# HVAC Toolkit Ultimate vs Eden Select (S)

The clearest difference is price: Eden Select (S) at Free against HVAC Toolkit Ultimate's $59.99. Eden Select (S) also leads on rating (5.0 vs 3.0) and review sentiment (75% vs 40%). HVAC Toolkit Ultimate's advantage is ratings volume (4 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Eden Select (S) is free to download; HVAC Toolkit Ultimate costs $59.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Eden Select (S) holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 40% of HVAC Toolkit Ultimate's written reviews are positive against 75% of Eden Select (S)'s.

HVAC Toolkit Ultimate ships an update every 6 months, Eden Select (S) every 6 weeks. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | HVAC Toolkit Ultimate | Eden Select (S) |
| --- | --- | --- |
| Price | $59.99 | **Free** |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/hvac-toolkit-ultimate/id391408247/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eden-select-s/id627365007/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 40.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 59 MB | 45 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Far East Group Ltd](https://appshunter.io/developer/627365050) |

## What reviewers say

### HVAC Toolkit Ultimate

[App page](https://appshunter.io/ios/app/hvac-toolkit-ultimate/id391408247)

This comprehensive application offers a suite of tools for HVAC professionals, including load calculations, equipment tracking, refrigerant charts, duct and pipe sizing, and psychrometric analysis. It consolidates multiple functionalities into a single, powerful utility for field and office use.

**Highlights:** Residential load calculations, Equipment nameplate data tracking, Refrigerant pressure-temperature charts, Superheat and subcool calculations, Duct and pipe sizing analysis, Psychrometric calculations, Steam table property calculations

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

**In-app purchases:** none


### Eden Select (S)

[App page](https://appshunter.io/ios/app/eden-select-s/id627365007)

This professional HVAC engineering tool helps users perform heat load calculations, select cold rooms, and choose appropriate equipment for refrigeration projects. It provides various references and calculations for freezing times and operational loads, generating printable PDF summaries.

**Highlights:** Heat load calculation (cold room, product, infiltration), Food heat load references, Freezing time calculation, Total operation load calculation, Unit cooler/Evaporator selection, Compressor selection, Condenser selection, Printable PDF summary

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Toolkit Ultimate free?

HVAC Toolkit Ultimate costs $59.99, with no in-app purchases.

### Is Eden Select (S) free?

Eden Select (S) is free to download, with no in-app purchases.

### Which has better reviews, HVAC Toolkit Ultimate or Eden Select (S)?

Eden Select (S) is rated higher. HVAC Toolkit Ultimate averages 3.0 out of 5 from 4 ratings, while Eden Select (S) averages 5.0 from 1 ratings.

### Do HVAC Toolkit Ultimate or Eden Select (S) have ads?

Neither HVAC Toolkit Ultimate nor Eden Select (S) shows ads.

### Which is updated more often, HVAC Toolkit Ultimate or Eden Select (S)?

HVAC Toolkit Ultimate ships an update every 6 months, and Eden Select (S) every 6 weeks. Most recently, HVAC Toolkit Ultimate was updated on October 12, 2026 and Eden Select (S) on October 14, 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.*