Inflection App vs RLM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Inflection App
Read full descriptionHide full description
Inflection Advisors Mobile App was built for our clients to view their Portfolio, Holdings, Performance and Activity. Clients can also access documents from our firm such as Quarterly Statements, Billing Statements and Documents imported from custodians. It is easy to contact your advisor directly from the mobile app. We are a registered investment advisory firm based out of Los Angeles, CA.
RLM
This finance and business calculator emulates the HP-12C Platinum, offering a comprehensive suite of tools for financial analysis, business calculations, statistics, and scientific functions. It allows for loan amortization, bond pricing, option valuation, currency exchange, and program creation, all within an intuitive iOS interface.
- Finance and business calculations
- Loan amortization and bond pricing
- Black-Scholes options valuation
- Currency exchange with online rates
- Statistical analysis
- Scientific and unit conversions
- Program creation and equation solving
Read full descriptionHide full description
DESCRIPTION: The RLM-12PX is a programmable financial calculator inspired by the real world HP-12C Platinum or Anniversary calculator. It keeps the classic financial keyboard and its keystroke programming, and adds 30 worksheets designed to bring up the most of your iOS devices for financial, business, mathematical and scientific work. >Keyboard: •RPN and algebraic entry, with a four-level stack and storage registers. •Time value of money, amortization, NPV, IRR, bond price and yield, SL, SOYD and DB depreciation, dates, percentages and statistics directly from the keys. •Keystroke programs with pauses, conditional tests and branches, written in a full-screen editor and saved and loaded by name. >Finance Worksheets: •Account Balance: Calculates the balance of cash transactions and interest applied at arbitrary dates. •Loan Amortization: Amortization schedule for a single payment or several payments at once. •Bonds 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. •Interest Conversion: Nominal and effective interest conversion. •Time Value of Money: Calculates compound interest problems. >Business Worksheets: •Bill-Tip-Split: Calculates the sharing of a bill with tip. •Break Even: Analyzes the relation Profit = (Price - Var.Cost) • Units - Fix.Cost •Currency Exchange with manual or on-line rates. •Inventory Turn Over. •Percents & Margins: Calculates %Change, %Total and business margins. •Return on Investment. >Cash Flows Worksheets: •Equal Periods: NPV, IRR, MIRR, NFV, payback and discounted payback of cash flows occurring at regular time intervals. •Unequal Periods: Cash flows occurring at arbitrary dates. >Statistics Worksheets: •Probability: 16 probability distributions. •(X,N)-List Statistics: One-variable statistics. •(X,Y)-List Statistics: Two-variable statistics and curve fitting. >Scientific Worksheets: •Angles & Polar-Rectangular conversions. •Combinations & Permutations. •Logarithms, Trigonometric, Hyperbolic and Number Alteration functions. •Quadratic Equation solver. •Triangle Solution: Solves plane and spherical triangles. •Universal Constants: The CODATA physical constants values and descriptions. •Units Conversion: Physical units conversion, completely customizable. >General Worksheets: •Date / Time: Calculates days between dates with Actual, 360 or 365 day calendars, and time intervals between different times. •Solver: Solves arbitrary equations entered as text for any of the variables, knowing the others. •Storage Registers: Store and perform operations directly on the calculator's storage registers. •Memory Content: Clear, back up or restore part or all of the calculator's memory. •General Settings: Customize display format, decimals, date format, angle unit, sounds, haptics and more. •Help Documents: Description and examples of all the calculator worksheets and features. >Editors: To create or edit data •(Date,Trx) List: Transactions and their dates for the "Account Balance" worksheet. •(Date,CF) List: Cash flows and their dates for the "Unequal Periods" worksheet. •(X,N) List: Values and repetitions for cash flows and statistics. •(X,Y) List: X and Y data samples for the statistics worksheets. •Program: Keystroke programs. •Solver Equation: Algebraic expressions for the "Solver" worksheet. •Units Database: Customize the "Units Conversion" worksheet. System requirements: iOS 26.0 or above. 30-day free trial, then a single one-time Lifetime Purchase of $9.99 USD. No subscription. License Agreement: http://www.apple.com/legal/itunes/appstore/dev/stdeula Disclaimer: THIS IS NOT A HEWLETT PACKARD CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY HEWLETT PACKARD OR ANY OF ITS SUBSIDIARIES.
Screenshots
Verdict
The clearest difference is in-app purchases: Inflection App at none against RLM's 4. Inflection App also leads on iOS requirement (15.6 vs 26.0). RLM's advantage is update cadence (monthly vs every 6 months). On price, ads and device support 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 4 in-app purchases, starting at $0.49 per month. Inflection App asks for nothing beyond the download.
Inflection App ships an update every 6 months, RLM monthly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | Inflection App | RLM |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (4 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 53 MB | 8 MB |
| Age rating | 4+ | +4 |
| Developer | INFLECTION BUSINESS CONSULTING INC. | R.L.M. Software |
In-app purchases
Inflection App
No in-app purchases
RLM
- Monthly Subscription$0.491 Month
- Semi-Annual Subscription$2.996 Months
- Annual Subscription$5.991 Year
- Lifetime Purchase$9.99









