What’s New

Version 3.4

• Update to work around (more)bugs/changes in iOS12.3
• Improved currency conversion (again)

Ratings and Reviews

4.9 out of 5
338 Ratings

338 Ratings

92%Dew ,

Best HP calc simulator out there

Do not hesitate to pay for this app, you won’t be sorry. Since discovering the HP 10B II years ago, I have one in my office, one at work, one in my upstairs “finance” room — and I have one as a backup. I’m a Type A, sorry.

I find I use this one more often than any others for several reasons. It’s absolutely accurate in look, feel and calculations. Add to that, it includes built-in help and examples when I forget a particular formula, no need to carry any of my HP workbooks. It’s been awesome, totally worth the money I paid, you won’t regret it.

alwaysmprest ,

Really Excellent

I’ve been using this app since I had an iPhone 4, I think, and I use it everyday. I have a physical HP 19BII that I don’t use, because this is so much better. The layout is a 10b, except with a backlit keyboard and very clear colors to designate functions. Ernest Brock keeps this bug free and always accurate with my numbers. This is a really good job, and a good addition to your phone. I’ve used it for student loans, credit calculations, mortgage, and all the money stuff life has tossed at me—- and it’s always working well.

gadgetklm ,

A+, App, updates & Developer...

I've always have loved the 10bII, I was even a little sad to shelf the good ole girl for the new iPad/iPhone App version. Wow, what an improvement! The ability of this powerful calculator with the developers worksheets make this a premium calculator. The developer is both responsive and talented. I love having it available at my side on my iPhone, but prefer the robust iPad version, and you get both! My highest recommendations for this app. Developer constantly improves and updates. This app is Highly recommended 👍🏻👍🏻👍🏻😀😀


Ernest Brock
5.2 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2010 Ernest Brock


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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