# Radar Performance vs 737 CSFF

The clearest difference is price: Radar Performance at Free against 737 CSFF's $2.99. Radar Performance also leads on iOS requirement (13.0 vs 17.6). 737 CSFF's advantage is chart position (#197 vs unranked). On rating, ratings volume, update cadence and ads there is nothing between them.

Radar Performance is free to download; 737 CSFF costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Radar Performance against 5.0 for 737 CSFF. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Radar Performance ships an update every 2 months, 737 CSFF every 4 months. The most recent releases landed on September 9, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | Radar Performance | 737 CSFF |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/radar-performance/id1502792151/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/737-csff/id1551516212/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Ad-supported** | Paid |
| Best chart rank | — | **#197** |
| Size | 7 MB | 11 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [Dan O'Leary](https://appshunter.io/developer/1177083778) |

## What reviewers say

### Radar Performance

[App page](https://appshunter.io/ios/app/radar-performance/id1502792151)

This application calculates the geometry of aircraft weather radar beams relative to Earth, the freezing level, and the "bright band" for optimal weather detection. It identifies areas on the radar display where the beam is too high or low for effective weather detection and highlights potential ground returns.

**Highlights:** Calculates weather radar beam geometry, Considers Earth and freezing level, Identifies optimal detection altitudes, Shows areas of ineffective beam coverage, Highlights potential ground returns, Supports various radar models

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

**In-app purchases:** none


### 737 CSFF

[App page](https://appshunter.io/ios/app/737-csff/id1551516212)

**Currently charting:** #197 Top Paid · Utilities (US App Store)

A visual guide to understanding Cold Soaked Fuel Frost (CSFF) on 737 aircraft wings. It references airline handbooks and Boeing FCOM guidance for educational purposes.

**Highlights:** Visual representation of CSFF scenarios, Study guide for 737 wing frost, References North American Airline Flight Handbook, Includes Boeing FCOM guidance, Educational tool for pilots

**In-app purchases:** none


## Frequently asked questions

### Is Radar Performance free?

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

### Is 737 CSFF free?

737 CSFF costs $2.99, with no in-app purchases.

### Which has better reviews, Radar Performance or 737 CSFF?

Radar Performance and 737 CSFF are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Radar Performance or 737 CSFF have ads?

Neither Radar Performance nor 737 CSFF shows ads.

### Which is updated more often, Radar Performance or 737 CSFF?

Radar Performance ships an update every 2 months, and 737 CSFF every 4 months. Most recently, Radar Performance was updated on September 9, 2026 and 737 CSFF on August 3, 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.*