Comparison

CALC 1 Programmable 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

CALC 1 Programmable Calculator

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
Read full description

Customize your calculators for quick and accurate calculations with CALC 1 - the ultimate programmable calculator for your iPhone or iPad. * Harness the power of AI: Ask your favorite AI tool to create JavaScript functions for you * Effortlessly create Function Calculators: Simply copy the AI-generated function code to your clipboard and tap the add button in the "Function Calculators" list - CALC 1 will automatically create a new Function Calculator (Always test the Function Calculator to verify the function is as you intended) * Execute functions with ease: Key in the parameter values to run the function and get instant results * Perform breakeven analysis: Function Calculators can solve for any non-integer parameter * Visualize data effortlessly: Create plots as a function of any parameter by entering the min and max values * Assign programs to individual calculator keys for personalized functionality * Create custom calculators by copying and pasting keys from pre-built calculators * Automatically generate keys from entered expressions for effortless reuse * CALC 1 has over 100 built-in functions that you can use from your JavaScript code * Manage lists and data with the List Manager and Data Manager for quick and accurate importing * Choose between algebraic, chain, or RPN calculation modes with an automatic stack * Access the CALC 1 documentation site with over 100 pages of searchable content and video tutorials, easily accessible through help links (?) within the app Whether you're a student, professional, or simply someone who appreciates the power of customization and AI-assisted productivity, CALC 1 offers a consistent and efficient solution to a wide range of problems. Upgrade your calculation experience with CALC 1 today!

About

RLM

This scientific calculator offers a comprehensive suite of tools for finance, business, statistics, and complex scientific calculations. It emulates a classic calculator while leveraging modern iOS device capabilities for ease of use and advanced functions.

Highlights
  • Finance and Business calculations
  • Date and Time interval calculations
  • Advanced Statistics and Curve Fitting
  • Complex Numbers and 3D Vectors
  • Unit and Currency Conversions
  • Equation Solver
  • Programmable functions
Features
Read full description

The RLM-10CX application is a general purpose calculator with a special focus in science and engineering. It is based in the Hewlett-Packard HP-10C calculator, but specially designed to bring up the most of your iOS devices and , at the same time, conserving the easy of use and all functions originally provided by the real calculator. >Finance Menu: •Account Balance: Credit line type account based on cash transactions and interest rates applied. •Amortization: Loan Amortization Schedule for a single loan payment or from several payments at once. •Bond Price & Yield: Bonds calculations in an easy way with all options and values at sight. •Black-Scholes Options: CALL, PUT and “Greeks” calculations of the Black-Scholes European option valuation model. •Equal Periods: Calculations with Cash Flows occurring at regular time intervals. •Unequal Periods: Calculations with Cash Flows occurring at arbitrary dates. •Depreciation: Calculates depreciation with SL, SOYD, DB or MACRS methods and conventions. values at sight. •Interest Conversion: Nominal and effective interest conversion. •Time Value of Money: Compound Interest problems involving money earning interest over a period of time. >Business Menu: •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. Date / Time Menu: Calculates Date and Time intervals with all values at sight. >Statistics Menu: •One-Variable Statistics: Calculations for one variable data samples. •Two-Variable Statistics: Calculations for two variables data samples. •Curve Fitting: 6 Regression models to fit a curve based on two variables data samples. •Probability: Combinations, permutations, Normal, Exponential, t-Student and Weibull probability distributions. >Scientific Menu: •Complex Numbers: Operations and functions with complex numbers. •Logarithms, Trigonometric, Hyperbolic and Number Alteration functions. •Triangle Solution: Solves a Plane & Spherical triangles. •3D Vectors: Operations and functions with vectors in Cartesian, Spherical or Cylindrical coordinates. •Universal Constants: All the NIST-CODATA physical constants values and descriptions. •Units Conversion: Physical units conversion completely customizable. >Convert Menu: •Angles & Polar: Convert angles between DEG,RAD,GRAD,DMS or Slope % & 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. >Program Menu: Create, edit or load previously saved programs. >Solver Menu: Solve arbitrary algebraic equations entered and saved in the equation editor and creates a menu with all the variables to solve any of them. >Utilities Menu: •General Settings: Customize the calculator to your preference. •Storage Registers: Store and perform operations directly over the calculator’s storage registers. •Memory Content: Shows all memory content edit, backup or restore. •Help Documents: learn by example about all menus. >Editors: submenu to select data editors. 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 HEWLETT PACKARD CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY HEWLETT PACKARD OR ANY OF ITS SUBSIDIARIES.

Screenshots

CALC 1 Programmable Calculator4 screens
RLM4 screens

Verdict

The call

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 1). On update cadence, ads, device support and iOS requirement 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

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.

ReceptionRating · Positive reviews · Number of ratings

RLM holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: CALC 1 Programmable Calculator has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

CALC 1 Programmable Calculator ships an update every 5 weeks, RLM every 4 weeks. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 5 level
CALC 1 Programmable Calculator versus RLM: the parameters behind the verdict, then further details
ParameterCALC 1 Programmable CalculatorRLM
Price$9.99Free — better
Rating4.6 (9 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 5 weeksEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.115.0 — better
Further details — not scored
Size8 MB6 MB
Age rating4+4+
DeveloperCalcFxC, LLCR.L.M. Software

Customer experience

CALC 1 Programmable Calculator

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RLM

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CALC 1 Programmable Calculator

No in-app purchases

1 purchases

RLM

One-time1
  • Lifetime Purchase$9.99

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 1 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 4 weeks. Most recently, CALC 1 Programmable Calculator was updated on September 9, 2026 and RLM on September 10, 2026.

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