Comparison

Kalkulators vs SwiftRPN

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

Head to head
About

Kalkulators

This app allows for complex calculations using numbers, operators, and variables. It offers multiple calculator instances and theme customization. Advanced mathematical functions and extended limits are available via in-app purchase.

Highlights
  • Expression input with operators and parentheses
  • Real-time calculation as you type
  • Variable support for dynamic calculations
  • Multiple calculator instances
  • Customizable themes (light/dark)
  • User-defined precision
Features
Read full description

Kalkulators = expression calculators. Examples: 1 + 2 + (5 - 2.345) 22.0 / 7 * (a +b) Features: - Expression: use numbers, parenthesis, operators: + - * / - No need for an "=" button. Calculates as you type. - Mathematical functions (with inApp purchase) - Variables: use them in the expression. Useful for example, to change the values without editing the expression - iPhone: "Basic" mode for quick calculations (no variables) - Multiple Kalkulators - Duplicate Kalkulator: easily compare results by using different values in an expression/variables - Preferences: theme (light/dark), precision, thousands separator With Kalkulators you will never need to write down those intermediate results. Buy the Pro version from the in-App store to unlock it's full potential. Buy it once and unlock both the iPad and iPhone Pro features. Note that Kalkulators is an iPad and iPhone app. Here are the differences • iPad: - Albums: let's you organize your formulas (maximum 5) - Formulas: let's you store your formulas (maximum 3/album) - Kalkulators: open many kalkulators at the same time (maximum 2) - Kalkulators variables: reference them in your formulas for quicker, more convenient calculations (2 variables) • iPhone: - Formulas: let's you store your formulas (maximum 2) - Kalkulators variables: reference them in your formulas for quicker, more convenient calculations (1 variable) • iPad and iPhone: - Duplicate Kalkulators - Two themes: light and dark - User defined precision (decimals) With the in-App purchase, this is what you get: • iPad: - Albums: maximum 100 - Formulas: maximum 100/album, no limit on the expression length - Kalkulators: maximum 20 - Kalkulators variables: 10 variables - Scientific keyboard with trigonometric and math functions • iPhone: - Formulas: maximum 100, no limit on the expression length - Kalkulators variables: 3 variables - Scientific keyboard with trigonometric and math functions

About

SwiftRPN

Read full description

SwiftRPN is an RPN (Reverse Polish Notation) calculator that aims to be quick to open and easy to use. = RPN Stack Work quickly and efficiently using the RPN Stack by pushing and popping values. The stack will always show what series of inputs led to each output, so you won't lose context during complicated expressions. = Extended Types SwiftRPN can understand scalar types like integers and real numbers, as well as vectors and square matrices of sizes 2, 3, and 4. When operating purely in the scalar integer domain, SwiftRPN can promote up to BigInts to avoid floating point imprecision. = 80 Operators SwiftRPN has 84 built-in operators with included documentation and examples. All the expected operators (basic arithmetic, exponents, logarithms) are present, as are: - Rounding functions (floor/ceil/trunc/round) - Unit conversions - Bitwise operations (and/or/not/xor/shift left/shift right) - Statistics (avg/min/max/sum/std dev/NPV) - Trigonometry (sin/cos/tan + arc/hyperbolic variants) - Vector operations (dot/cross/normalize/length/swizzle) - Matrix operations (identity/inverse/transpose + translation/scale/rotation matrix generators) = Unit Conversions SwiftRPN has 74 built-in units, and can convert between units within families, including: - Angle - Area - Colors (3 and 4 components) - Coordinate systems (2D and 3D) - Length - Mass - Storage (Base 10 [SI, 1000 bytes in a kb] and Base 2 [1024 bytes in a kb]) - Temperature - Time - Volume = Value Representation SwiftRPN recognizes values represented in binary, octal, decimal, and hexidecimal. You can: - Enter values in one representation, and convert them to another - See the result of bitwise operations in binary automatically - View vec3 and vec4 components (truncated) in hexidecimal when working with colors.

Screenshots

Kalkulators4 screens
SwiftRPN4 screens

Verdict

The call

The clearest difference is in-app purchases: SwiftRPN at none against Kalkulators's 1. Kalkulators's advantage is device support. On price 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

Both are free to download. Kalkulators sells 1 one-off in-app purchase. SwiftRPN asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Kalkulators versus SwiftRPN: the parameters behind the verdict, then further details
ParameterKalkulatorsSwiftRPN
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 9 months—
AdsNo—
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — better—
Requires iOS15.0 — better16.4
Further details — not scored
Size21 MB3 MB
Age rating4+4+
DeveloperiPinsoftPatrick Gelvin

In-app purchases

1 purchases

Kalkulators

One-time1
  • Kalkulators Pro$0.99
None

SwiftRPN

No in-app purchases

Questions

Is Kalkulators free?
Kalkulators is free to download, with in-app purchases available.
Is SwiftRPN free?
SwiftRPN is free to download, with no in-app purchases.

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