RLM vs BA II Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Finance Worksheets (Amortization, Bonds, Options)
- Business Calculations (Break-Even, Bill Split)
- Cash Flow Analysis
- Statistical Functions
- Scientific Calculator
- Unit and Currency Conversions
- Equation Solver
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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.
BA II Plus
This app offers a comprehensive financial calculator experience, replicating the functionality of a professional hardware calculator. It provides basic and advanced financial functions, with a one-time purchase unlocking specialized worksheets for complex calculations.
- Full financial calculator functionality
- Basic and Math functions
- Memory functions
- Time-Value-of-Money (TVM) worksheet
- Amortization and Cash Flow worksheets
- Bond, Depreciation, and Statistics worksheets
- Interest Conversion and Date calculations
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The BA II Plus Professional is a complete reimplementation of the full functionality of the TI's professional version of BA II Plus calculator. This free version provides basic Calculator functions, Math functions, Memory functions. A one-time In-App-Purchase required to access the Time-Value-of-Money (TVM), Amortization, Cash Flow, Bond, Depreciation, Statistics, Percent Change/Compound Interest, Interest Conversion, Date, Profit Margin, and Breakeven worksheets.
Screenshots
Verdict
The clearest difference is review sentiment: RLM at 100% against BA II Plus's 8%. RLM also leads on rating (5.0 vs 1.0) and monetization model (free vs free with in-app purchases). BA II Plus's advantage is ratings volume (13 vs 2) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. RLM sells 1 one-off in-app purchase and BA II Plus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RLM holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: BA II Plus has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of RLM's written reviews are positive against 8% of BA II Plus's.
RLM ships an update every 2 months, BA II Plus every 3 months. The most recent releases landed on September 30, 2026 and October 25, 2026 respectively.
| Parameter | RLM | BA II Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 1.0 (13 ratings) |
| Positive reviews | 100.0% of reviews — better | 7.7% of reviews |
| Number of ratings | 2 | 13 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | R.L.M. Software | Anishu, Inc. |
Customer experience
RLM
BA II Plus
In-app purchases
RLM
- Lifetime Full Access$9.99
BA II Plus
- BAII+ Pro - full functionality$5.99
Questions
Is RLM free?
Is BA II Plus free?
Which has better reviews, RLM or BA II Plus?
Do RLM or BA II Plus have ads?
Which is updated more often, RLM or BA II Plus?
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