10bii Financial Calculator Reviews

10bii Financial Calculator Reviews

Published by on 2026-04-23

🏷️ About: Look no further, you have found the best Financial Calculator app available. In-App Purchase: 10bii+ Features (Bonds, Breakeven, Depreciation, Trig, Probabilities) available! 5 Stars: "What is the PV of WOW? I'm sure thrilled with everything about this app! Too bad there isn't room for another star!" - Pokey 5 Stars: "This tool is excellent.


       


Is 10bii Financial Calculator Safe to Use?

We Investigate the app owner's website (Inadaydev.com), verify their legitimacy, and uncover hidden scams and complaints.


Overall Customer Experience 😎


🤬 Negative experience
58.3%

😎 Positive experience
41.7%

🫥 Neutral
0.0%

~ from Justuseapp.com NLP analysis of 663 combined software reviews.

Is 10bii Financial Calculator Safe?
10bii Financial Calculator is very safe to use.
41.7/100

  Safety Analysis »»

Is 10bii Financial Calculator Legit?
10bii Financial Calculator looks authentic and legitimate.
41.7/100



Read 20 Customer Service Reviews 😠💢

4.7 out of 5
3.99 Add on feature doesn’t work and family sharing also don’t work

Please update 10biiFinancialCalculator to make sure add on and family sharing along with add on purchase works. Because as of right now nothing is working properly. When restore it always restore to one of the add on and not to the 3.99.

It doesn’t work.

Just getting started to do homework for finance. First problem and it doesn’t calculate. Watched video and interesting enough the tab to use wasn’t present. So money wasted. No way to contact company via website so I guess they do not want bothered to improve the product. Buy a better product- you will be less frustrated!

Great, but could always be better

Tons of power in an easy to use app. I do wish there were a few more convenient operations, like being able to paste into the cash flow journal, or auto population of 1 payment/times received in the cash for journal, but all in all great.

Where do the calendar function go?

I used to use the calendar function, difference in days, etc. every week to write contracts and track expiration dates in them. Need it back.
Other than that I’d give it 5 stars. I love 10biiFinancialCalculator and use it as my primary financial calculator.

Love the app. But Share is broken

It’s a great app and is easy to use. But I recently tried the share option on my iPad and iPhone X and when pressing the share button it just hangs and then 10biiFinancialCalculator dies.

The developer explained that it crashed because of an interest only calculation. An IO option would be helpful.

Legit

This calculator is great. I have compared it to my actual HP 10bii and the answers are the same.

I noticed some of the other reviewers mentioned that their answers were off by a couple hundred or thousand dollars. I had this problem when I first downloaded and thought the calculator was trash. But then I noticed that the Payments Per Year (which is visible right under the answer display) was set to 12. I believe the HP 10bii is factory set to 1 Per Year.

You can change this setting by selecting the three lines in the upper right-hand corner, clicking Settings, and just typing in 1 for Payments/Year. After I changed this setting, my answers matched exactly.

Additionally, make sure your display is set to more than one zero for intermediate calculations. Your answers will be off by a couple cents or dollars if you are rounding up intermediate calculations while working out a problem. You can do this by clicking a number (for example, select the number 4 for four zeros to display) then click the Orange button and then the Equal sign and it’ll display your selected number of zeros.

Overall great calculator and the layout is perfect!

Best app ever for calculating everything

10biiFinancialCalculator is phenomenal!! It takes so much strain out of working with numbers in so many different ways.

I am studying accounting and this app is great

Very helpful for my accounting classes. Be patient and take the time for watching the tutorial videos you will se what simple is using 10biiFinancialCalculator

Easy to use

Look and feel of the HP, is worth a few dollars to have something accurate and simple to use.

It works the same, only better, as the real one

I still check on actual HP10B for important numbers, but this is my go to calculator.

Helped me learn, became a better investor

This calculator helped me learn the financial Calc's that helped me to be a successful real estate investor. Really good app and useful built ins for mortgages and other calcs. Helps me to make smart decisions in all my financial transactions.

Old school

Like may my age I learned everything on the 12c and was so happy when this calculated came out. I can rum this format backwards and forwards in my sleep. Getting it on my phone is perfect.

Very convenient

Works well for my Principles of Financial Management class and so convenient to have it on my phone! So far it’s been accurate. Thanks for creating 10biiFinancialCalculator!

Excellent! Second to none!

I’ve used 10biiFinancialCalculator for quite a while, and I found it to be full of features that you would expect, as well as features you would not expect, such as full amortization tables. 10biiFinancialCalculator is very well done.

I can’t go without this!

I use 10biiFinancialCalculator constantly. As an investor, I use it on my phone and iPad when I’m working out quick calculations on a deal, or figuring future values. I also use the version on my desktop. The amortizations are spot on.

The developers are listening!

Uneven cash flows caused an internal error and crashed the application. After a simple email to Kenny and the team, he promptly fixed 10biiFinancialCalculator and has submitted to Apple for an update. What a great development team that is listening to their feedback!

Very easy to use interface

I have been buying discounted paper for many years. Always had to carry a financial calculator before this fabulous app came along. I love the easy to use interface and also the amortization table feature.

Great app

It’s refreshing to find an app that is easy to use, functionally designed, and well supported by its developer. 10biiFinancialCalculator got me through my financial management class and had all the features I needed. The developer’s website has helpful tutorials as well. Thank you.

Shut up and just buy this financial calculator already

Don’t waste time on all the others, this is the one. I’ve spent over 30 years working the HP 10 and this is even better and leaves all the other app versions in the dust.

My Favorite

My favorite go to calculator I own the real Calculator but this makes it so much more easier. I appreciate 10biiFinancialCalculator.



Is 10bii Financial Calculator Safe? 🙏

10bii Financial Calculator is very safe to use. JustUseApp Safety Score for 10bii Financial Calculator is 41.7/100.
This assessment is based on our NLP analysis of 663 user reviews. Combined with the app store average rating of 4.7/5.

Safety Analysis

87.3% of users say app is safe 👍
87.3%

8.2% of users have some concerns ⚠️
8.2%

4.4% of users say app is risky 🚨
4.4%


Is 10bii Financial Calculator Legit? 💯

10bii Financial Calculator looks authentic and legitimate. Our NLP models processed user feedback to estimate legitimacy. JustUseApp Legitimacy Score for 10bii Financial Calculator is 41.7/100 .
This conclusion is based on analysis of 663 user reviews.

🔏 Privacy & Data Safety

10bii Financial Calculator collected the following data from you:

  • Data Not Linked to You:
    • Diagnostics

Payments 💸

**Pricing data is based on average subscription prices reported by Justuseapp.com users..

Pricing Plans Amount (USD)
10bii+ Features $3.99
Easy Mode Saving with growing deposits? $0.99
Easy Mode What are growing payments worth? $0.99
Easy Mode Adjust for Future Inflation $0.99
Easy Mode What will it REALLY cost? $0.99
Easy Mode What is my balloon? $0.99
Easy Mode Adjust for Past USA Inflation $0.99
Easy Mode Canadian Mortgage Payment $0.99




How was your experience with 10bii Financial Calculator? Post a Review




Features

By expanding on HP's traditional presentation, the 10bii Financial Calculator allows quick and intuitive building and visualization of TVM (Time Value of Money) calculations and Uneven Cash Flows, lets you see the stored values of all of your memory registers in one easy view, graphs your statistical series, and lets you type in whole equations for easy review and one-touch evaluation.

Get answers to common financial questions WITHOUT having to know how to use a financial calculator! With the 10bii Financial Calculator's Easy Modes, answer a few simple questions worded in plain language (rather than Financial-ese) and find out just how much you'll save with that refi, how much you'll have at retirement, how long it'll take you to save up for that big purchase and more.

The 10bii Financial Calculator is a versatile and powerful financial calculator which features more than 105 different functions for financial analysis, business, statistics, and general mathematics.

Modeled after the extremely popular HP 10bII Financial Calculator, the 10bii Financial Calculator app combines precise mathematics, intuitive display, and ease-of-use in one compact package.

The 10bii Financial Calculator's keypad has been specially designed to be easy to use and easy to see.

  Contact Support
Developer:
K2 Cashflow, Inc.


Website: