Programmable RPN Calc is an app by Eric Bergman-Terrell in the Productivity category, listed since at least March 2021. It has no native code, so it runs on any Android processor.
What's new in v1.48
API 31
Description
From the listing uploaded by “appupdater”.
EBTCalc is the ultimate programmable Reverse Polish Notation (RPN) calculator available for Android devices, from tiny phones to large tablets, and everything in between. With EBTCalc, you can create custom buttons using the industry-standard Javascript programming language.
EBTCalc is available in Free and Paid versions. Get the paid version to avoid the nag screen when editing Javascript.
EBTCalc:
• Create an unlimited number of custom functions using the popular, industry-standard JavaScript programming language!
• Custom functions are callable by clicking the custom button that appears the moment you’ve written the function.
• The JavaScript editor allows you to instantly navigate to a specified function.
• When a custom function is added or updated in the integrated editor, it can be immediately used by the calculator. Many other programmable calculators require the user to exit the app, and re-run it before the altered script is recognized. Not EBTCalc!
• EBTCalc’s JavaScript editor pinpoints syntax errors for quick correction.
• Custom JavaScript functions developed on one device can be exported and imported into other devices.
• EBTCalc has a simple logging mechanism for easy debugging.
• JavaScript methods that implement custom buttons are run with a user-specified timeout value, so there's no risk of infinite loops causing lock-ups and draining your device’s battery.
• Custom buttons can prompt the user for values, using a standard Android dialog box.
• Custom objects are treated like any other values: Custom objects can be manipulated on the stack, stored as memory variables, passed as parameters to custom functions, and so on. Custom objects are rendered on the stack using a toString function that you control.
• Customize EBTCalc to your heart's content, using the popular, industry-standard JavaScript programming language!
• Performs calculations using the RPN (Reverse Polish Notation) system, preferred by engineers and scientists.
• Optional key click for improved data entry accuracy.
• Optional thousands separator for improved readability of larger numbers.
• Manipulates arrays as easily as floating-point numbers. Values on the stack can be converted to and from arrays with a single button click.
• Full clipboard integration. Copy and paste values between EBTCalc and other apps.
• Runs on large tablets to small phones, and takes full advantage of screen real-estate. On tablets, EBTCalc has an efficient two-column mode.
• An unlimited number of values can be stored on the stack.
• Values stored on the stack are available even after EBTCalc is closed and re-started.
• Store an unlimited number of values in named memory variables. Memory variable values are retained until they are deleted. Retrieve memory variables by name.
• EBTCalc has the standard set of advanced mathematical operations, trigonometry, statistics, and date/time manipulation.
• Supports computer math: base conversions, arithmetic operations, and bitwise logical operations.
• Minimalist, clean user interface. EBTCalc doesn’t get between you and your numbers.
• Comprehensive on-line help, in the unlikely event that you need it.
• EBTCalc has no advertising.
• EBTCalc is open sourced.
Additionally, a desktop version of EBTCalc for Windows, Linux, and OSX is available!
Security & authenticity
Security rating: Trusted
Signing certificate
Certificate issued to “Personal MicroCosms”The developer's name — though anyone can put any name in a certificate.
Store checks and file details
Developer signature under reviewOct 24, 2025
Antivirus scan result not available
Signed byCN=Eric Terrell, OU=Software Development, O=Personal MicroCosms, L=Denver, ST=CO, C=US
Uploaded by “appupdater”Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Required hardware & features
Basic touch inputandroid.hardware.faketouch
Programmable RPN Calc APK: questions and answers
Can I install this APK over the version I already have?
Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.
Is the Programmable RPN Calc APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 2a4766529516dbf0d7b210ccb34c73be.