Conversion! vs SwiftRPN
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Conversion!
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Unit Converter ā Fast, Accurate and Easy to Use Unit Converter is the perfect companion for quickly and accurately converting a wide variety of units. Whether you're at home, at work, in school, at university, or on the go, the app provides reliable results with an intuitive and easy-to-use interface. Features ⢠Fast and precise unit conversions ⢠Clean and intuitive user interface ⢠Instant calculations while typing ⢠Wide range of conversion categories ⢠High calculation accuracy ⢠Perfect for everyday use, education, engineering and professional work ⢠Optimized for both iPhone and iPad ⢠Simple, fast and efficient operation Available Categories Depending on the version, the app includes many conversion categories such as: ⢠Length ⢠Area ⢠Volume ⢠Weight ⢠Speed ⢠Temperature ⢠Pressure ⢠Energy ⢠Power ⢠Time ⢠Angle ⢠Digital Storage ⢠Force ⢠Density ⢠Frequency ⢠Currency and many more. Whether you need a quick conversion for everyday life or accurate engineering calculations, Unit Converter gives you reliable results in seconds.
SwiftRPN
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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
Verdict
The clearest difference is device support: Conversion! at 2 against SwiftRPN's ā. SwiftRPN's advantage is iOS requirement (16.4 vs 26.0). On price and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Conversion! | SwiftRPN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | ā |
| Ads | No | ā |
| In-app purchases | No | No |
| Devices | iPhone, iPad ā better | ā |
| Requires iOS | 26.0 | 16.4 ā better |
| Further details ā not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Gerhard Lentschik | Patrick Gelvin |
In-app purchases
Conversion!
No in-app purchases
SwiftRPN
No in-app purchases









