Best Stackis RPN alternatives: apps like Stackis RPN

10+ similar apps compared and reviewed

4.1 avg rating
8 free apps
Updated November 2026

Looking for something like Stackis RPN? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Stackis RPN

Easy Calculator - EasyCalc#2

Easy Calculator - EasyCalc by 伟鹏 李

Simple & No Ads & History
Strong Contender
πŸ”§ Utilities
4.0(12 ratings)
FreeIn-App Purchases
Easy Calculator - EasyCalc screenshot 1
Easy Calculator - EasyCalc screenshot 2
Easy Calculator - EasyCalc screenshot 3
Easy Calculator - EasyCalc screenshot 4
Easy Calculator - EasyCalc screenshot 5
Easy Calculator - EasyCalc screenshot 6

This app offers a smart and efficient computing experience with automatic history saving and a comprehensive unit converter. It provides customizable themes, flexible display settings, and optional haptic feedback for enhanced interaction.

More apps like Stackis RPN

4
Zip File – Zip, Unzip, Protect
Zip File – Zip, Unzip, Protect
Zip File – Zip, Unzip, Protect
Compress, Extract, and Manage
Free

Compress, extract, and organize various file formats like .zip, .rar, and .7z. This tool offers a secure and simple way to manage your files on the go, with premium features available through subscription.

Compress and extract filesSupport for .zip, .rar, .7z formatsFile organization
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(3)
free with in-app purchases
5
ContactKit - Backup to Mail
ContactKit - Backup to Mail
ContactKit - Backup to Mail
Delete, merge duplicates
$0.29
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(0)
6
Bubble Level & Angle Finder
Bubble Level & Angle Finder
Bubble Level & Angle Finder
Digital Spirit Tool & Ruler
Free

Transform your device into a precise spirit level and angle meter. It offers instant setup, haptic feedback, and audible alerts for perfect leveling. Ideal for DIY, woodworking, and professional installations.

Instant spirit level and angle meterPrecise digital readoutsHaptic and audible feedback
πŸ”§ Utilities
(21)
freemium
7
Spacer – Invisible Widgets
Spacer – Invisible Widgets
Spacer – Invisible Widgets
Placeholders for lock screen
Free
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(0)
8
LudyQR - QR creator & scanner
LudyQR - QR creator & scanner
LudyQR - QR creator & scanner
QR Creator, Scanner & Privacy
Free

Easily create and scan QR codes with extensive customization options. This tool prioritizes user privacy by operating entirely on your device, offering a secure way to manage all your codes.

Create 20+ QR code typesCustomize colors, patterns, and logosScan QR codes and barcodes
πŸ”§ Utilities
(3)
free with in-app purchases
9
LudyRec - Lossless Recorder
LudyRec - Lossless Recorder
LudyRec - Lossless Recorder
Pure Audio. No Compression.
Free

Capture raw, uncompressed audio with this audiophile-grade recorder. It bypasses iOS limitations to deliver pure signal capture, offering professional metering and multiple lossless formats for high-fidelity recordings.

Pure Mode for raw, uncompressed signal captureLossless recording formats (WAV, ALAC, FLAC)Professional real-time metering
πŸ”§ Utilities
(12)
freemium
10
Water Eject: Clear Speaker
Water Eject: Clear Speaker
Water Eject: Clear Speaker
Apple Watch & iPhone Cleaner
$0.99

This app uses sound frequencies to clear water and debris from your iPhone speakers and earbuds. Get clearer calls and music in seconds with quick cleaning cycles and device-specific modes. It's designed for easy, on-device use after rain, workouts, or splashes.

Sound pulses to remove moisturePreset cycles for different devicesVisual and haptic guidance
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(1)
paid