Comparison

SwiftRPN vs FrameFitCalculator

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

Head to head
About

SwiftRPN

This utility app provides a powerful Reverse Polish Notation (RPN) calculator with advanced features. It supports scalar types, vectors, and matrices, along with extensive built-in operators and unit conversions. Easily switch between number bases and visualize results.

Highlights
  • RPN stack for efficient calculations
  • Support for scalar, vector, and matrix types
  • 84 built-in operators with documentation
  • 74 built-in units for conversion
  • Multiple number base input and output (binary, octal, decimal, hex)
  • BigInt support for integer calculations
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

FrameFitCalculator

This app simplifies custom frame and mat calculations for artists and DIY enthusiasts. It provides accurate dimensions for glass, mats, and frames, with flexible unit options and visual previews. Save time and money by avoiding errors and achieving professional results.

Highlights
  • Accurate frame and mat dimension calculations
  • Flexible unit switching (inches/centimeters)
  • Smart framing style recommendations
  • Interactive visual preview of frame construction
  • Project saving and organization
  • User-friendly interface
Read full description

Frame Calculator: Precision Framing Made Easy the art of perfect picture framing with Frame Calculator, the essential tool for artists, framers, and DIY enthusiasts. Say goodbye to guesswork and wasted materials – get precise dimensions for your custom frames, mats, and artwork with unparalleled accuracy. Whether you're a professional framer or a hobbyist, our intuitive app simplifies complex calculations, ensuring your projects always look their best. Key Features: Accurate Dimensions: Instantly calculate glass size, mat opening, frame outer dimensions, and backing board size based on your artwork and desired frame molding. Flexible Units: Seamlessly switch between inches and centimeters for all your measurements, catering to global standards. Smart Recommendations: Discover professional framing styles tailored to your artwork, complete with suggested mat and frame widths to inspire your next project. Visual Preview: See a clear, interactive diagram of your frame's construction, including artwork, mat, and frame layers, before you make a single cut. Project Management: Save, organize, and revisit all your custom frame projects with ease, keeping your ideas and measurements at your fingertips. User-Friendly Interface: Designed for simplicity and efficiency, making complex calculations straightforward and accessible to everyone. Why Choose Frame Calculator? Save Time & Money: Avoid costly mistakes and material waste by getting precise measurements right the first time. Achieve Professional Results: Ensure your artwork is perfectly framed, enhancing its beauty and presentation. Boost Your Creativity: Experiment with different framing styles and see them come to life with our visual preview. Empower Your DIY Projects: Take control of your framing needs with confidence and precision. Download Frame Calculator today and frame your memories with precision and style!

Screenshots

SwiftRPN4 screens
FrameFitCalculator4 screens

Verdict

The call

The clearest difference is update cadence: FrameFitCalculator at weekly against SwiftRPN's every 14 months. FrameFitCalculator also leads on iOS requirement (15.1 vs 17.6). On price, rating, ratings volume 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. 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 FrameFitCalculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

SwiftRPN ships an update every 14 months, FrameFitCalculator weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
SwiftRPN versus FrameFitCalculator: the parameters behind the verdict, then further details
ParameterSwiftRPNFrameFitCalculator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 14 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperPatrick GelvinMicah Lavan

Customer experience

SwiftRPN

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

FrameFitCalculator

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

In-app purchases

None

SwiftRPN

No in-app purchases

None

FrameFitCalculator

No in-app purchases

Questions

Is SwiftRPN free?
SwiftRPN is free to download, with no in-app purchases.
Is FrameFitCalculator free?
FrameFitCalculator is free to download, with no in-app purchases.
Which has better reviews, SwiftRPN or FrameFitCalculator?
SwiftRPN and FrameFitCalculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do SwiftRPN or FrameFitCalculator have ads?
Neither SwiftRPN nor FrameFitCalculator shows ads.
Which is updated more often, SwiftRPN or FrameFitCalculator?
SwiftRPN ships an update every 14 months, and FrameFitCalculator weekly. Most recently, SwiftRPN was updated on October 27, 2026 and FrameFitCalculator on October 24, 2026.

Other comparisons