# Refrigeration CycleAnalyst vs Process Engineer Calc

The clearest difference is in-app purchases: Process Engineer Calc at none against Refrigeration CycleAnalyst's 2. Refrigeration CycleAnalyst's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Refrigeration CycleAnalyst sells 2 in-app purchases, starting at $9.99 per month. Process Engineer Calc asks for nothing beyond the download.

Refrigeration CycleAnalyst ships an update every 2 weeks, Process Engineer Calc every 10 days. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Refrigeration CycleAnalyst | Process Engineer Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 62 MB | 11 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Steven Mcdevitt](https://appshunter.io/developer/1824906420) | [冯泰 蔡](https://appshunter.io/developer/1896641064) |

## What reviewers say

### Refrigeration CycleAnalyst

[App page](https://appshunter.io/ios/app/refrigeration-cycleanalyst/id6757132920)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RCA Monthly Subscription | $9.99 | per month |
| RCA Annual Subscription | $99.99 | per year |


### Process Engineer Calc

[App page](https://appshunter.io/ios/app/process-engineer-calc-lms/id6774295442)

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

**In-app purchases:** none


## Frequently asked questions

### Is Refrigeration CycleAnalyst free?

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

### Is Process Engineer Calc free?

Process Engineer Calc is free to download, with no in-app purchases.

### Do Refrigeration CycleAnalyst or Process Engineer Calc have ads?

Neither Refrigeration CycleAnalyst nor Process Engineer Calc shows ads.

### Which is updated more often, Refrigeration CycleAnalyst or Process Engineer Calc?

Refrigeration CycleAnalyst ships an update every 2 weeks, and Process Engineer Calc every 10 days. Most recently, Refrigeration CycleAnalyst was updated on September 8, 2026 and Process Engineer Calc on September 12, 2026.

---

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