# CALC 1 Programmable Calculator vs RLM

The clearest difference is price: RLM at Free against CALC 1 Programmable Calculator's $9.99. RLM also leads on rating (5.0 vs 4.6). CALC 1 Programmable Calculator's advantage is in-app purchases (none vs 1) and ratings volume (9 vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

RLM is free to download; CALC 1 Programmable Calculator costs $9.99 up front. RLM sells 1 one-off in-app purchase. CALC 1 Programmable Calculator asks for nothing beyond the download.

RLM holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 9 and 2 respectively.

CALC 1 Programmable Calculator ships an update every 5 weeks, RLM every 3 weeks. The most recent releases landed on September 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CALC 1 Programmable Calculator | RLM |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/calc-1-programmable-calculator/id1455298951/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rlm-flight/id6448285133/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 6 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CalcFxC, LLC](https://appshunter.io/developer/395979596) | [R.L.M. Software](https://appshunter.io/developer/289639238) |

## What reviewers say

### CALC 1 Programmable Calculator

[App page](https://appshunter.io/ios/app/calc-1-programmable-calculator/id1455298951)

Create custom calculators with AI-generated JavaScript functions for precise calculations and data visualization. Assign programs to keys and manage data efficiently. Offers multiple calculation modes and extensive documentation.

**Highlights:** AI-assisted JavaScript function creation, Customizable function calculators, Data visualization and plotting, Programmable calculator keys, List and data management, Multiple calculation modes (algebraic, RPN)

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

**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 CALC 1 Programmable Calculator free?

CALC 1 Programmable Calculator costs $9.99, with no in-app purchases.

### Is RLM free?

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

### Which has better reviews, CALC 1 Programmable Calculator or RLM?

RLM is rated higher. CALC 1 Programmable Calculator averages 4.6 out of 5 from 9 ratings, while RLM averages 5.0 from 2 ratings.

### Do CALC 1 Programmable Calculator or RLM have ads?

Neither CALC 1 Programmable Calculator nor RLM shows ads.

### Which is updated more often, CALC 1 Programmable Calculator or RLM?

CALC 1 Programmable Calculator ships an update every 5 weeks, and RLM every 3 weeks. Most recently, CALC 1 Programmable Calculator was updated on September 27, 2026 and RLM on October 15, 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.*