Comparison

bcRPN vs SwiftRPN

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

Head to head
About

bcRPN

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

Highlights
  • Reverse Polish Notation (RPN) input
  • Complex number calculations
  • Extended precision math
  • Unlimited stack depth
  • Undo functionality (up to 10 operations)
Features
Read full description

This is a RPN (Reverse Polish Notation) Calculator. It supports complex numbers and uses extended precision math for all operations. The stack depth is unlimited. In case a mistake was made, up to 10 operations can be undone. RPN calculators work by entering the numbers on the stack first, then selecting the operation. For example to add 3 + 4, press: 3 Enter 4 +

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.

Screenshots

bcRPN1 screens
SwiftRPN4 screens

Verdict

The call

The clearest difference is rating: SwiftRPN at 5.0 against bcRPN's 4.8. bcRPN's advantage is ratings volume (8 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence, 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

SwiftRPN holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: bcRPN has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

bcRPN ships an update every 22 months, SwiftRPN every 14 months. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
bcRPN versus SwiftRPN: the parameters behind the verdict, then further details
ParameterbcRPNSwiftRPN
PriceFreeFree
Rating4.8 (8 ratings)5.0 (1 ratings) — better
Positive reviews80.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 22 monthsEvery 14 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size0 MB3 MB
Age rating4+4+
DeveloperPaul WilkinsPatrick Gelvin

Customer experience

bcRPN

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

SwiftRPN

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

In-app purchases

None

bcRPN

No in-app purchases

None

SwiftRPN

No in-app purchases

Questions

Is bcRPN free?
bcRPN is free to download, with no in-app purchases.
Is SwiftRPN free?
SwiftRPN is free to download, with no in-app purchases.
Which has better reviews, bcRPN or SwiftRPN?
SwiftRPN is rated higher. bcRPN averages 4.8 out of 5 from 8 ratings, while SwiftRPN averages 5.0 from 1 ratings.
Do bcRPN or SwiftRPN have ads?
Neither bcRPN nor SwiftRPN shows ads.
Which is updated more often, bcRPN or SwiftRPN?
bcRPN ships an update every 22 months, and SwiftRPN every 14 months. Most recently, bcRPN was updated on October 24, 2026 and SwiftRPN on October 24, 2026.

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