HP 15c Calculator
Screenshots
Description
Meet the next generation of your favorite scientific calculator. The official HP 15c app, now brings a completely redesigned interface, a modern look, and improved functionality—while preserving the precision and reliability trusted by professionals for decades. This RPN calculator offers the features, algorithms and calculation sequences of the original 15c Scientific Calculator conveniently stored on your iPhone or iPad. The HP 15c You Know – Now Better Than Ever • Official emulator of legendary calculator device by HP • Identical algorithms, layout, and keystrokes as the original HP 15c • RPN (Reverse Polish Notation) for fast and efficient input • Matrix calculations, Complex functions, Numerical integration. • Ideal for math and engineering students and professionals • Programmable – up to 448 lines Be Ready. Anywhere. Anytime. Whether you’re in class, at the office, or on the go, HP 15c is ready when you are. Just launch the app on your iPhone and get to work. Download HP 15c today and experience the perfect blend of classic functionality and modern design.
What's New
Stability improvements and small fixes.
Details
- Developer
- MORAVIA Consulting, spol. s r.o.
- Main Category
- Utilities
- Version
- 3.0.2
- Version Release
- 2026-02-03
- Initial Release
- 2012-03-02
- Size
- 45 MB
- Age Rating
- 4+
- Price
- USD 14.99
- Languages
- EN
- Bundle ID
- com.hp.HP15C2
- Version Rating
- ★ 4.79 (195)
- First Seen
- 2026-05-30
Metadata updated 2026-06-04
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User Reviews
Matches my actual 15C perfectly!
Very happy this spp is being maintained. Nice update. The 15c is one of the best calculators Hewlett-Packard ever made.
I use scientific calculations all day, and this app is silky magnificent. It has been worth the price many ties over, and I would hate to be without it. Fantastic!
I love the RPN input system. I have this original calculator and this “app” will always be on my phone and tablet.
Updated to iOS 12 and it stopped working. I deleted it and powered down iPhone. Restarted and re-installed and it works again.
I’ve had HP15c calculators since the mid-1980s, and until I had a smartphone to carry around, always had one in my everyday carry. Now that this beautiful emulator exists, I have the best of both worlds. Thanks!!
I still have the hardware version and am pleased to see this software version so accurately rendered.
Work flawlessly, all functions well done. For older hands the portrait look is quite useful. A physical model with 2 line display like the hp-35s will be hit at least with me. Saving calculator state and program will be a veritable upgrade.
Best Scientific Calculator on your iPhone
This calculator got me through college and this app does an awesome job of bringing it to modern devices - Love the update!
Reviews are collected only for apps with detected changes (new entries or sharp risers).