This utility app provides a Reverse Polish Notation (RPN) calculator. Users can extend its functionality by programming custom functions and equations using JavaScript.
ThetaCalc by Felix Stehli
Editor's Choice
🔧 Utilities
4.3(4 ratings)
Free
Best apps like Bubble Level 2023
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3.4 avg rating
10 free apps
Updated August 2026
Looking for something like Bubble Level 2023? 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 Bubble Level 2023
Bubble Level: Pro Measure Tool by Metehan Kasap
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Bubble Level + Compass by Dimitrios Kechagias
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This utility app provides a precise bubble level for horizontal, vertical, and surface angle measurements, along with a true-north compass. It offers advanced calibration options and works on iOS devices. A Pro version is available for additional features.
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