# Rheem Calcu Save vs Friedrich

The clearest difference is rating: Friedrich at 4.6 against Rheem Calcu Save's 4.3. Rheem Calcu Save's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Friedrich holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 44 and 55 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Rheem Calcu Save ships an update every 2 months, Friedrich monthly. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Rheem Calcu Save | Friedrich |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (44 ratings)](https://appshunter.io/ios/app/rheem-calcu-save/id1110121420/reviews) | **[4.6 (55 ratings)](https://appshunter.io/ios/app/friedrich/id6460458596/reviews)** |
| Number of ratings | 44 | **55** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 20 MB | 110 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Copeland LP](https://appshunter.io/developer/464252882) | [Rheem Manufacturing Company](https://appshunter.io/developer/853793269) |

## What reviewers say

### Rheem Calcu Save

[App page](https://appshunter.io/ios/app/rheem-calcu-save/id1110121420)

This app helps HVAC contractors quickly calculate and present potential cost savings to homeowners when comparing residential HVAC system replacements. It generates professional reports showing annual savings for high-efficiency systems, aiding customer decision-making.

**Highlights:** Calculate HVAC system replacement cost savings, Compare multiple replacement options, Generate professional graphical reports, Email reports to customers, Uses Emerson Climate Technologies OPI database, Compares against industry minimum standards

**Features:** macOS Compatibility

**In-app purchases:** none


### Friedrich

[App page](https://appshunter.io/ios/app/friedrich/id6460458596)

This app simplifies HVAC system installation, service, and troubleshooting for contractors. It offers Bluetooth connectivity for setup, diagnostics, and access to technical support resources like manuals and parts lists.

**Highlights:** Bluetooth setup for HVAC systems, System monitoring and status checks, Alarm diagnosis and history, Access to installation instructions and manuals, Parts list and technical sheet lookup, Warranty tracking and certificate sharing, Rebate and financing research

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rheem Calcu Save free?

Rheem Calcu Save is free to download, with no in-app purchases.

### Is Friedrich free?

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

### Which has better reviews, Rheem Calcu Save or Friedrich?

Friedrich is rated higher. Rheem Calcu Save averages 4.3 out of 5 from 44 ratings, while Friedrich averages 4.6 from 55 ratings.

### Do Rheem Calcu Save or Friedrich have ads?

Neither Rheem Calcu Save nor Friedrich shows ads.

### Which is updated more often, Rheem Calcu Save or Friedrich?

Rheem Calcu Save ships an update every 2 months, and Friedrich monthly. Most recently, Rheem Calcu Save was updated on October 21, 2026 and Friedrich on October 27, 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.*