Sampling Calculator Lite vs RLM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sampling Calculator Lite
This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 2013 and MIL-STD-105E standards. It assists in determining sampling size codes and inspection levels for quality control processes.
- ANSI/ASQ Z1.4 2013 compliance
- MIL-STD-105E compliance
- Single sampling size calculation
- Normal and Reduced inspection
- AQL range from 0.065 to 15
- Supports size code letters I, II, and III
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The sampling calculator conforms to ANSI/ASQ Z1.4 2013 and MIL-STD-105E Standards. NOTE: This calculator may be used as an aid to faster calculate the sampling plan needed, and always in conjunction or with the basic knowledge of the ANSI/ASQ Z1.4 standard. It does not replace the standards mentioned above. The sampling calculator covers single sampling size code letters I, II and III. Normal and Reduced with AQLs from 0.065 to 15. For the Full version of the calculator look for "Sampling Calculator" it contains all 7 code levels and tightened inspection type.
RLM
This advanced scientific calculator emulates the functionality of the HP-15C, offering comprehensive tools for finance, business, statistics, and scientific calculations. It supports programming, equation solving, and unit conversions, optimized for iOS devices.
- Programmable advanced scientific calculator
- Finance and business calculation menus
- Statistics and probability functions
- Complex numbers and matrix operations
- Unit and currency conversions
- Equation solver and programming capabilities
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The RLM-15CX application is a programable advanced scientific calculator. It is based in the Hewlett-Packard HP-15C calculator, but specially designed to bring up the most of your iOS devices and , at the same time, conserving the easy of use and the functionality 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 Cash Flows: Solve problems where different cash flows occur at regular time intervals. •Unequal Periods Cash Flows: Solve problems where different cash flows occur at different dates. •Depreciation: Calculates depreciation with SL, SOYD, DB or MACRS methods and conventions. values at sight. •Interest Rates: 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. •Matrix: view, create or edit matrices with real or complex elements. •Plane Triangle: Solves a two dimensional triangle (ASA,SAS,SSA and SSS). •Spherical Triangle: Solves a triangle in a sphere’s surface (AAA,AAS,ASA,SAS,SSA and SSS). •Universal Constants: All the NIST-CODATA fundamental physical constants. •Vectors 3D: Operations and functions with vectors in Cartesian, Spherical or Cylindrical coordinates. >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. •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
Verdict
The clearest difference is review sentiment: RLM at 80% against Sampling Calculator Lite's 33%. RLM also leads on rating (4.1 vs 3.0) and update cadence (monthly vs every 14 months). Sampling Calculator Lite's advantage is in-app purchases (none vs 4) and iOS requirement (13.1 vs 15.0). 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. Sampling Calculator Lite asks for nothing beyond the download.
RLM holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: RLM has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Sampling Calculator Lite's written reviews are positive against 80% of RLM's.
Sampling Calculator Lite ships an update every 14 months, RLM monthly. The most recent releases landed on August 19, 2026 and September 10, 2026 respectively.
| Parameter | Sampling Calculator Lite | RLM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) | 4.1 (17 ratings) — better |
| Positive reviews | 33.3% of reviews | 80.0% of reviews — better |
| Number of ratings | 3 | 17 — better |
| Update frequency | Every 14 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Manuel Alfredo Sanchez | R.L.M. Software |
Customer experience
Sampling Calculator Lite
RLM
In-app purchases
Sampling Calculator Lite
No in-app purchases
RLM
- Monthly Subscription$0.491 Month
- Semi-Annual Subscription$2.996 Months
- Annual Subscription$5.991 Year
- One-Time Purchase$9.99
Questions
Is Sampling Calculator Lite free?
Is RLM free?
Which has better reviews, Sampling Calculator Lite or RLM?
Do Sampling Calculator Lite or RLM have ads?
Which is updated more often, Sampling Calculator Lite or RLM?
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