Comparison

RLM vs Teambilling

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

Head to head
About

RLM

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.

Highlights
  • 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
Features
Read full description

The RLM-19BX is a calculator for finance, business and science. It is designed to bring up the most of your iOS devices with an extensive set of worksheets and enhancements to cover most of the functions generally needed by financial, business, mathematical, engineering and scientific professionals. >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. •Interest Rates: 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: Analyze the following 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: Cash Flows occurring at regular time intervals. •Unequal Periods: Cash Flows occurring at arbitrary dates. >Statistics Worksheets: •Probability: 16 probability distributions. •One or Two variables Statistics. •Curve Fitting: 6 Regression models to fit a curve. >Scientific Worksheets: •Angles & Polar-Rectangular conversions. •Complex Numbers: Operations and functions with complex numbers. •Combinations & Permutations. •Logarithms, Trigonometric, Hyperbolic and Number Alteration functions. •Quadratic Equation solver •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. >Conversion Worksheets: •Angles: Convert angle between DEG,RAD,GRAD,DMS and Slope %. •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. •General Settings to set classic and new keyboard skins, RPN and algebraic logic, sounds, display format, etc. >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 26.0 or above. 30-day free trial, then a single one-time Lifetime Purchase. 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.

About

Teambilling

Read full description

Manage your activities as the basis for billing. With the iOS app, you can do the following online or offline: Start the timer and assign the activity to a customer and device Create new customers, contacts, and devices Manually add an activity, even without the timer activated Synchronize the app with the teambilling web application as soon as you’re online again Edit your activities and change the description or note

Screenshots

RLM4 screens
Teambilling4 screens

Verdict

The call

The clearest difference is in-app purchases: Teambilling at none against RLM's 4. Teambilling also leads on device support (4 vs 2) and iOS requirement (15.6 vs 26.0). On price, update cadence and ads 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 4 in-app purchases, starting at $0.49 per month. Teambilling asks for nothing beyond the download.

UpkeepUpdate frequency

RLM ships an update every 4 weeks, Teambilling every 3 weeks. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
RLM versus Teambilling: the parameters behind the verdict, then further details
ParameterRLMTeambilling
PriceFreeFree
Rating4.9 (7 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings7 — better—
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS26.015.6 — better
Further details — not scored
Size7 MB40 MB
Age rating4+4+
DeveloperR.L.M. SoftwareTeambilling

In-app purchases

4 purchases

RLM

Subscriptions3
  • Monthly Subscription$0.491 Month
  • Semi-Annual Subscription$2.996 Months
  • Annual Subscription$5.991 Year
One-time1
  • Lifetime Purchase$9.99
None

Teambilling

No in-app purchases

Questions

Is RLM free?
RLM is free to download, with in-app purchases available.
Is Teambilling free?
Teambilling is free to download, with no in-app purchases.
Do RLM or Teambilling have ads?
Neither RLM nor Teambilling shows ads.
Which is updated more often, RLM or Teambilling?
RLM ships an update every 4 weeks, and Teambilling every 3 weeks. Most recently, RLM was updated on October 25, 2026 and Teambilling on October 10, 2026.

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