Comparison

Easy Option Calculator vs RLM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Easy Option Calculator

Calculate option prices and Greeks using the Black-Scholes model. Input underlying price, exercise price, days to expiration, interest rate, and volatility to get instant results. Reset values easily with a dedicated button.

Highlights
  • Black-Scholes model calculation
  • Option price and Greeks
  • Input underlying price
  • Input exercise price
  • Input days to expiration
  • Input interest rate
  • Input volatility
  • Reset values function
Features
Read full description

Easy Option Calculator is very easy to use, enter following values, and click button “Call”, or “Put” to get option prices and option Greeks: Underlying price ($), exercise price ($), days until expiration (days), interest rate (%), and volatility (%). click "Reset" button to reset values. The Black–Scholes model is a mathematical model of a financial market containing certain derivative investment instruments. From the model, one can deduce the Black–Scholes formula, which gives the price of options. It is widely used by options market participants. Many empirical tests have shown the Black-Scholes price is “fairly close” to the observed prices.

About

RLM

This app offers a comprehensive suite of financial and business calculation tools, inspired by a popular professional calculator. It features specialized worksheets for loans, bonds, options, depreciation, and time value of money, alongside business, cash flow, statistics, and scientific functions.

Highlights
  • Finance Worksheets (Amortization, Bonds, Options)
  • Business Calculations (Break-Even, Bill Split)
  • Cash Flow Analysis
  • Statistical Functions
  • Scientific Calculator
  • Unit and Currency Conversions
  • Equation Solver
Features
Read full description

The RLM-BA2 application is a general purpose calculator with a special focus in finance and business. It is inspired by the Texas Instrument BAII+Professional calculator, but specially designed to bring up the most of your iOS devices. The RLM-BA2 has a extensive Menu System: >Finance Worksheets: •Account Balance: Calculates the Balance of cash transactions and interest applied at arbitrary dates. •Amortization: Loan Amortization Schedule for a single or several loan payments. •Bond Price & Yield: Calculates the Price, Yield and Effective Duration of a Bond. •Black-Scholes Options: Calculates the CALL, PUT and “Greeks” values of a Black-Scholes European option. •Depreciation: Calculates depreciation with SL, SOYD, DB or MACRS methods and conventions. •Time Value of Money: Calculates compound Interest problems. >Business Worksheets: •Bill-Tip-Split: Calculates the sharing of a Bill with Tip. •Break-Even: Analyze the following relation: Profit = (Price - Var.Cost) • Units - Fix.Cost •Currency Exchange with on-line rates. •Percents & Margins: Calculates %Change, %Total and Business margins. >Cash Flows Worksheets: •Equal Periods: Calculations with Cash Flows occurring at regular time intervals. •Unequal Periods: Calculations with Cash Flows occurring at arbitrary dates. >Statistics Worksheets: •One-Variable Statistics: Calculations for one variable data samples. •Two-Variable Statistics: Calculations for two variables data samples. •Probability: Combinations, permutations and Normal, Exponential, t-Student and Weibull probability distributions. >Scientific Worksheets: •Angles & Polar: Convert angles and coordinates. •Logarithm functions with common or arbitrary base. •Number Alteration functions •Trigonometric & Hyperbolic functions. >Conversion Worksheets: •Angles & Polar: Convert angles between DEG,RAD,GRAD,DMS or Slope % and Polar-Rectangular coordinates. •Currencies: world currencies conversions with manual input or on-line current rates. •Interest Rates: Nominal and effective interest conversion. •Units: Physical units conversions. >General Worksheets: •Date: Calculates days between dates with Actual, 360 or 365 days calendars. •Time: Calculates time intervals between different times. •Solver: Calculates arbitrary equations entered as text expression to solve any of the variables knowing the others. •Storage Registers: Store and perform operations directly over the calculators storage registers. •Memory Content: Clear, Back-Up or Restore part or all of the Calculator's memory. •General Settings: Customize many aspects of the calculator including formats & feedbacks. •Help Documents: Description and examples of all the calculator worksheets and features. >Editors Worksheets: To create or edit data •(Date,Trx) List: Transactions and the dates they occurs for the "Account Balance Worksheet". •(Date.CF) List: Cash flows and the dates they occurs for the "Unequal Periods Cash Flows Worksheet". •(X,N) List: Cash flows and repetitions for the "Equal Periods Cash Flows Worksheet". •(X,Y) List: X and Y data samples for the Statistics worksheets. •Solver Equation: Algebraic expression for use in the "Solver" worksheet. •Units Database: Customize the "Units" worksheet. System requirements: iOS 15.0 or above. 30 days Free-Trial. In-App-Purchase: One-Payment for life. License Agreement: http://www.apple.com/legal/itunes/appstore/dev/stdeula DISCLAIMER: THIS IS NOT A TEXAS INSTRUMENT CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY TEXAS INSTRUMENT OR ANY OF ITS SUBSIDIARIES.

Screenshots

Easy Option Calculator3 screens
RLM4 screens

Verdict

The call

The clearest difference is in-app purchases: Easy Option Calculator at none against RLM's 1. RLM's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Easy Option Calculator against 5.0 for RLM. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Easy Option Calculator ships an update every 3 months, RLM every 2 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Easy Option Calculator versus RLM: the parameters behind the verdict, then further details
ParameterEasy Option CalculatorRLM
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperGuoli JianR.L.M. Software

Customer experience

Easy Option Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RLM

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Easy Option Calculator

No in-app purchases

1 purchases

RLM

One-time1
  • Lifetime Full Access$9.99

Questions

Is Easy Option Calculator free?
Easy Option Calculator 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, Easy Option Calculator or RLM?
Easy Option Calculator and RLM are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Easy Option Calculator or RLM have ads?
Easy Option Calculator shows ads; RLM does not.
Which is updated more often, Easy Option Calculator or RLM?
Easy Option Calculator ships an update every 3 months, and RLM every 2 months. Most recently, Easy Option Calculator was updated on October 2, 2026 and RLM on September 30, 2026.

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