# C172 Performance vs RLM

The clearest difference is in-app purchases: C172 Performance at none against RLM's 1. C172 Performance also leads on ratings volume (52 vs 2) and iOS requirement (13.0 vs 15.0). RLM's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, rating and device support there is nothing between them.

Both are free to download. RLM sells 1 one-off in-app purchase. C172 Performance asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for C172 Performance against 5.0 for RLM. That said, the two scores are not equally well evidenced: C172 Performance has 52 ratings behind it against 2, so its average is the more settled of the two.

C172 Performance ships an update every 2 months, RLM every 3 weeks. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | C172 Performance | RLM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (52 ratings)](https://appshunter.io/ios/app/c172-performance/id741721884/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rlm-flight/id6448285133/reviews)** |
| Number of ratings | **52** | 2 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 15 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### C172 Performance

[App page](https://appshunter.io/ios/app/c172-performance/id741721884)

This app calculates essential flight performance data for Cessna 172 and 150 aircraft. It covers takeoff, landing, climb, cruise, descent, instrument procedures, and emergencies, with additional tools for holds and glide calculations. Cloud sync ensures your flight plans are accessible across devices.

**Highlights:** Takeoff and landing calculations, Climb, cruise, and descent performance, Instrument procedure planning, Emergency scenario calculations, Interactive hold calculator, Emergency glide distance calculator, Cloud sync for flight plans

**Features:** macOS Compatibility

**In-app purchases:** none


### RLM

[App page](https://appshunter.io/ios/app/rlm-flight/id6448285133)

This aviation computer app offers a comprehensive suite of tools for pilots. It calculates various flight parameters, including altitude, airspeed, ground speed, wind components, and weight & balance. The app also features unit and currency conversions, making it a versatile utility for aviation professionals.

**Highlights:** Altitude & Cloud Base Calculations, Airspeed & Ground Speed Calculations, Wind Component & Correction Tools, Weight & Balance Calculations, Unit & Currency Conversion, Holding Pattern & Flight Plan Tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Full Access | $9.99 | one-time |


## Frequently asked questions

### Is C172 Performance free?

C172 Performance is free to download, with no in-app purchases.

### Is RLM free?

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

### Which has better reviews, C172 Performance or RLM?

RLM is rated higher. C172 Performance averages 4.9 out of 5 from 52 ratings, while RLM averages 5.0 from 2 ratings.

### Do C172 Performance or RLM have ads?

C172 Performance shows ads; RLM does not.

### Which is updated more often, C172 Performance or RLM?

C172 Performance ships an update every 2 months, and RLM every 3 weeks. Most recently, C172 Performance was updated on September 18, 2026 and RLM on September 10, 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.*