# Eden Select (S) vs 清赤+

Eden Select (S) and 清赤+ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Eden Select (S) ships an update every 6 weeks, 清赤+ every 2 months. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Eden Select (S) | 清赤+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eden-select-s/id627365007/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 45 MB | 45 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Far East Group Ltd](https://appshunter.io/developer/627365050) | [Aiqiu Sun](https://appshunter.io/developer/1125242690) |

## What reviewers say

### 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


### 清赤+

[App page](https://appshunter.io/ios/app/plus/id1612786633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Eden Select (S) free?

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

### Is 清赤+ free?

清赤+ is free to download, with no in-app purchases.

### Do Eden Select (S) or 清赤+ have ads?

Neither Eden Select (S) nor 清赤+ shows ads.

### Which is updated more often, Eden Select (S) or 清赤+?

Eden Select (S) ships an update every 6 weeks, and 清赤+ every 2 months. Most recently, Eden Select (S) was updated on June 11, 2026 and 清赤+ on September 9, 2026.

---

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