Comparison

SwiftRPN vs Calculator for Complex Field

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

Head to head
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. = 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.

About

Calculator for Complex Field

Input natural math expressions and get instant results on a separate line, allowing for easy revisions. Save up to 20 inputs and incorporate saved answers into new expressions. Supports complex field calculations with adjustable decimal digits and three output formats.

Highlights
  • Natural math expression input
  • Automatic result display
  • Input revision for updated results
  • Save and reuse up to 20 inputs
  • Incorporate saved answers into expressions
  • Complex field calculations
  • Adjustable decimal digits
  • Three output formats (Fixed, Scientific, Engineering)
Features
Read full description

Your input to this app will be a natural math expression, and the answer will appear in a separate line. This makes it easy to revise current input to get an updated result. Up to 20 of your inputs will be automatically saved and can be reused later. You can also save your answer and incorporate it into your input expressions later. Undo and redo buttons will help you edit your expressions. All mathematical operations are performed in the complex field. Output will be a real or a complex number depending on your input and the selection is automatic. Three output formats are available for you to select: Fixed point, scientific and engineering. The number of decimal digits is adjustable. Finally, the help and demo buttons will bring you quick and easy usage examples. Current version includes the following math functions: exp, log, log10, sin, cos, tan, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, abs, angle, real, imag and power (^).

Screenshots

SwiftRPN4 screens
Calculator for Complex Field4 screens

Verdict

The call

The clearest difference is update cadence: Calculator for Complex Field at fortnightly against SwiftRPN's every 14 months. Calculator for Complex Field also leads on ratings volume (4 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SwiftRPN against 5.0 for Calculator for Complex Field. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

SwiftRPN ships an update every 14 months, Calculator for Complex Field fortnightly. The most recent releases landed on October 24, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
SwiftRPN versus Calculator for Complex Field: the parameters behind the verdict, then further details
ParameterSwiftRPNCalculator for Complex Field
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Positive reviews—100.0% of reviews
Number of ratings14 — better
Update frequencyEvery 14 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size3 MB1 MB
Age rating4+4+
DeveloperPatrick GelvinJongseung Park

Customer experience

SwiftRPN

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

Calculator for Complex Field

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SwiftRPN

No in-app purchases

None

Calculator for Complex Field

No in-app purchases

Questions

Is SwiftRPN free?
SwiftRPN is free to download, with no in-app purchases.
Is Calculator for Complex Field free?
Calculator for Complex Field is free to download, with no in-app purchases.
Which has better reviews, SwiftRPN or Calculator for Complex Field?
SwiftRPN and Calculator for Complex Field are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do SwiftRPN or Calculator for Complex Field have ads?
Neither SwiftRPN nor Calculator for Complex Field shows ads.
Which is updated more often, SwiftRPN or Calculator for Complex Field?
SwiftRPN ships an update every 14 months, and Calculator for Complex Field fortnightly. Most recently, SwiftRPN was updated on October 24, 2026 and Calculator for Complex Field on October 2, 2026.

Other comparisons