Comparison

RPNu vs Chane Base system,2

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

Head to head
About

RPNu

Features
Read full description

RPNu is a calculator that makes crunching numbers easier than it’s algebraic equivalent. RPN stand for Reverse Polish Notation (The β€˜u’ stands for universal, meaning it runs on both the iPad and iPhone.) and is the numeric evaluation method used for this app. RPN, I feel, is far superior to the algebraic method and once learned you will never want to use the algebraic again. This calculator has all the normal mathematical function, but also contains a host of other functions that you may find very useful. Space is limited in this description but here are the highlights: Help: There is extensive help to aid the user in determining how to use this app. It is also context sensitive. Programable: You can write your own programs and there are many tools to aid you in doing this. Graphics: You can graph equations and there are several modes to cover almost all requirements. A universal converter that you will find very useful. Matrix arithmetic (determinate, invert, add, subtract and multiply). Date calculator and an hours calculator with moon phase display. Elements and periodic table information. Combinations and permutations calculator Equation integration and root finder. Amortization with many useful functions. Mapping function that allows you to determine distance between points and other functions. Hyperbolic functions. Hexadecimal, Octal, and Binary modes. Barometer function showing QNE and QNH. A compass that not only shows magnetic and true north, but also shows the address you are at. This app includes extensive support for a Bluetooth keyboard. Also, extensive support is given to export your calculations to either email or the universal clipboard.

About

Chane Base system,2

Easily convert numbers between various bases, from binary to base 95. Supports common bases like decimal and hexadecimal. Offers a user-friendly interface for quick conversions.

Highlights
  • Converts between bases 2 to 95
  • Supports common bases (binary, decimal, hex)
  • User-friendly interface
  • Copy and paste functionality
  • Case-insensitive for bases 36 and below
Features
Read full description

A Simple and User-Friendly Base Converter App! This app allows you to easily convert between different bases, ranging from binary (base 2) to base 95. Common bases like binary, decimal (base 10), hexadecimal (base 16), and base 36 can also be smoothly converted. Using a simple text box, you can easily copy and paste the numbers you wish to convert. Additionally, when both the source and target bases are 36 or below, the app does not distinguish between uppercase and lowercase letters.

Screenshots

RPNu4 screens
Chane Base system,21 screens

Verdict

The call

The clearest difference is update cadence: RPNu at every 2 months against Chane Base system,2's every 15 months. Chane Base system,2's advantage is iOS requirement (12.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RPNu ships an update every 2 months, Chane Base system,2 every 15 months. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

Scorecard2 real differences Β· 6 level
RPNu versus Chane Base system,2: the parameters behind the verdict, then further details
ParameterRPNuChane Base system,2
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 2 months β€” betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.4 β€” better
Further details β€” not scored
Size49 MB1 MB
Age rating4+4+
DeveloperScott Johnsonζ ͺεΌδΌšη€Ύγƒγƒƒγƒˆγ‚’γ‚―γƒ†γ‚£γƒ“γƒ†γ‚£

In-app purchases

None

RPNu

No in-app purchases

None

Chane Base system,2

No in-app purchases

Questions

Is RPNu free?
RPNu is free to download, with no in-app purchases.
Is Chane Base system,2 free?
Chane Base system,2 is free to download, with no in-app purchases.
Do RPNu or Chane Base system,2 have ads?
Neither RPNu nor Chane Base system,2 shows ads.
Which is updated more often, RPNu or Chane Base system,2?
RPNu ships an update every 2 months, and Chane Base system,2 every 15 months. Most recently, RPNu was updated on October 12, 2026 and Chane Base system,2 on October 24, 2026.

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