RPN Calc Pro App Icon

RPN Calc Pro

Utilities • SparkStream, LLC
4+ v1.4 Recorded price: $2.99 App Store →
★★★★★
★★★★★
(1 App Store ratings)
IPA Analysis
Technical Specs
Bundle ID SparkStream.RPNCalcPro
Version 1.4
App Store Size 339.0 KB
Minimum iOS 18.5
Devices iPhone, iPad, iPod touch
Catalog release date 2026-03-13
Latest recorded version date 2026-03-31
Features & Support
Advisory 4+
Languages (1)
EN
Top In App Purchases
No In App Purchases Listed

Preview

RPN Calc Pro screenshot 1 RPN Calc Pro screenshot 2 RPN Calc Pro screenshot 3

Description

RPN CALC PRO - Classic Reverse Polish Notation A professional scientific calculator for engineers, scientists, and RPN enthusiasts. Experience the efficiency of Reverse Polish Notation with a clean, modern interface. RPN Calc Pro is provided for general use. Results should be independently verified for any critical application. SparkStream, LLC is not responsible for errors arising from use of this app. FEATURES: - Full 4-level stack display (T, Z, Y, X registers always visible) - Complete scientific function set - Trigonometric functions (sin, cos, tan, and inverses) - Logarithmic and exponential functions - Power and root operations - Memory storage and recall - Stack manipulation (swap, roll) - Degree mode for all trig functions - Clean, distraction-free interface - No ads, no tracking, no subscriptions PERFECT FOR: - HP calculator users - Engineering students and professionals - Scientists and researchers - Anyone who appreciates efficient calculation methods WHAT IS RPN? Reverse Polish Notation is a mathematical notation where operators follow operands. It eliminates the need for parentheses and allows for faster, more intuitive calculations once learned. NO ADS. NO TRACKING. JUST CALCULATIONS.

What's New

Version 1.4 2026-03-31
• Improved error handling — divide by zero, invalid operations now show a clear "Error" state instead of silent failures • Calculator state now persists between...• Improved error handling — divide by zero, invalid operations now show a clear "Error" state instead of silent failures • Calculator state now persists between app launches — your stack, memory, and mode settings are saved • Larger, more readable button labels and stack display • Scientific notation entry improved — ± now correctly toggles exponent sign • T-register now replicates after operations, matching classic HP RPN behavior • VoiceOver accessibility support added for all buttons and display registers • Removed unused code and reduced app footprint

Technical Analysis

Package Overview Basic metadata
Bundle ID SparkStream.RPNCalcPro
Current Version 1.4
Minimum iOS 18.5
Package Size App Store Size
Package Metadata 0 / 5 version records
Detailed binary, privacy manifest, framework, and Info.plist results have not been indexed for this package yet. The verified App Store and archive metadata above remains available.

Known Version Records

0 version records with stored package metadata • 5 known version records

Stored metadata does not guarantee a package is currently available to download.

Details Version / IDs Version date Action
RPN Calc Pro icon
Not archived
App Store ID: 883949820 Unknown Paid / Arcade
RPN Calc Pro icon
Not archived
App Store ID: 883560876 Unknown Paid / Arcade
RPN Calc Pro icon
Not archived
App Store ID: 883382586 Unknown Paid / Arcade
RPN Calc Pro icon
Not archived
App Store ID: 883372912 Unknown Paid / Arcade
RPN Calc Pro icon
Not archived
App Store ID: 881131188 Unknown Paid / Arcade