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RLM-19BX

RLM-19BX

Finance & Science calculator

7 ratings
3 reviews
📊 Productivity
💰 Finance
Free
In-App Purchases

Details

Released
December 21, 2021
Updated
October 21, 2026

Features

Developer

R.L.M. Software
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RLM-19BX screenshot #1 for iPhone
RLM-19BX screenshot #2 for iPhone
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RLM-19BX screenshot #5 for iPhone
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RLM-19BX screenshot #8 for iPhone
RLM-19BX screenshot #9 for iPhone
RLM-19BX screenshot #10 for iPhone
iphone
ipad
🧾$9.99
In-App Purchase↘︎
⭐3
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 3 weeks
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app offers a comprehensive suite of financial, business, scientific, and statistical calculators. It includes specialized worksheets for loan amortization, bond pricing, currency exchange, probability distributions, and complex number operations. Users can also perform date and time calculations, solve arbitrary equations, and convert units.

✓Finance worksheets (amortization, bonds, options)
✓Business tools (bill split, break-even, currency)
✓Statistical analysis (probability, regressions)
✓Scientific functions (complex numbers, vectors)
✓Unit and currency conversions
✓Equation solver
✓Date and time calculations
Show original description

What's New in RLM

4.0

October 21, 2026

Version 4.0: a fully reworked calculator engine and worksheets, refreshed help documents for every menu, improved display and settings, and many accuracy and stability fixes.

More
4

Subscriptions & In-App Purchases

Monthly Subscription

Auto-Renewal every month

$0.491 Month
How to cancel RLM subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Great digital version of my beloved HP-19Bii

It works just like the original with all the functions and solver. 5/5 stars! Thank you for keeping it alive!
EEduardoAlarcon

Best RLM Calculator

I have purchased one or two RLM calculators before. I really like their 12C calculator. However, this is their best one. I always liked the HP19bII. The RLM implementation is just perfect. Not photo realistic, but everything you need is there. It’s now the only calculator on my phone.
KKim_Wood

Erro em operações básicas

Exemplo : em RPN 40 Input 5 +.8 + = 0.80
Não está guardando o valor Y da pilha.
JJebsouza

Response from developer

We already fix the issue in latest version. Thank you very much for your report.

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FAQ

What types of financial calculations can RLM-19BX perform?

RLM-19BX offers specialized worksheets for account balance, loan amortization, bond pricing and yield, Black-Scholes options, and various depreciation methods (SL, SOYD, DB, MACRS). It also handles Time Value of Money calculations.

Does RLM-19BX support currency conversions?

Yes, RLM-19BX includes currency exchange functionality with options for manual input or online rates. It also offers interest rate conversions between nominal and effective rates.

Can RLM-19BX solve custom equations?

Yes, RLM-19BX features a solver that can calculate arbitrary equations entered as text expressions. You can solve for any variable by knowing the others.

What scientific functions are available in RLM-19BX?

RLM-19BX supports complex number operations, logarithms, trigonometric, hyperbolic functions, number alteration, triangle solutions (plane and spherical), and 3D vector operations in Cartesian, Spherical, or Cylindrical coordinates.

How often is RLM-19BX updated?

The latest version, 3.1.5, was released on April 26, 2024. Updates are frequent, indicating ongoing development and support for the app.

What devices is RLM-19BX compatible with?

RLM-19BX is designed for iOS devices, including iPhone, iPad, and iPod. It is rated for ages 4 and up.

What are the subscription options for RLM-19BX?

RLM-19BX offers a free version with in-app purchases and also provides subscription plans. These include a Monthly Subscription for $0.49, a Semi-Annual Subscription for $2.99, and an Annual Subscription for $5.99.

Does RLM-19BX have ads?

Based on the provided data, RLM-19BX does not have advertisements. Its monetization model is free with in-app purchases and optional subscriptions.