# FRR vs Optimal°

The clearest difference is rating: Optimal° at 4.9 against FRR's 4.0. FRR's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

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

Optimal° holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 4 and 7 respectively.

FRR ships an update every 2 months, Optimal° every 5 months. Both last shipped on June 1, 2026.

## The numbers

| Metric | FRR | Optimal° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/frr/id1449482390/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/optimal/id6473653236/reviews)** |
| Number of ratings | 4 | **7** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 42 MB | 19 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [County of Palm Beach](https://appshunter.io/developer/1520530049) | [Its Optimal LLC](https://appshunter.io/developer/1719356914) |

## What reviewers say

### FRR

[App page](https://appshunter.io/ios/app/frr/id1449482390)

This app facilitates communication between first responders and their families during large-scale emergency deployments. It serves as a vital link for agencies to keep families informed when emergency workers are away.

**Highlights:** Family communication during deployments, Agency-to-family updates, Information sharing for emergency workers, Support for first responder families

**In-app purchases:** none


### Optimal°

[App page](https://appshunter.io/ios/app/optimal/id6473653236)

This app provides remote control and monitoring for a specific brand of tankless water heaters. Users can adjust temperature, track performance metrics, and receive diagnostic information for efficient hot water management.

**Highlights:** Set water heater output temperature, Monitor unit activity state, Track flow rate and energy consumption, View inlet and outlet water temperatures, Access diagnostics and error codes, Enable Vacation Mode

**In-app purchases:** none


## Frequently asked questions

### Is FRR free?

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

### Is Optimal° free?

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

### Which has better reviews, FRR or Optimal°?

Optimal° is rated higher. FRR averages 4.0 out of 5 from 4 ratings, while Optimal° averages 4.9 from 7 ratings.

### Do FRR or Optimal° have ads?

Neither FRR nor Optimal° shows ads.

### Which is updated more often, FRR or Optimal°?

FRR ships an update every 2 months, and Optimal° every 5 months. Most recently, FRR was updated on June 1, 2026 and Optimal° on June 1, 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.*