10bii Financial Calculator

Name: 10bii Financial Calculator
Rating: 4.7 (662 reviews)
Author: K2 Cashflow, Inc.

by K2 Cashflow, Inc.

iPhone · iPad

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: $5.99
In-app purchases

Categories and search queries

Official categories

Finance
Utilities

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Family Sharing	Yes	Unknown	App Store	Store published
In-app purchases	Yes	Limited free	—	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Price: $5.99
In-app purchases

Last verified 31 Jul 2026

Ratings & reviews

App Store

4.7 662 ratings · App Store

5/5Legit
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!

Aly-Victoria · 31 Jul 2026
5/5Excellent! Second to none!
I’ve used this app 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. This app is very well done.

Professional Borrower · 31 Jul 2026
5/5Shut 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.

JohnnyBGreat · 31 Jul 2026
5/5Great app
It’s refreshing to find an app that is easy to use, functionally designed, and well supported by its developer. This app 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.

inatrhis · 31 Jul 2026
4/5Great, 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.

martinpnieves · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Not Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
Data Not Linked to You — App Functionality — Diagnostics — Other Diagnostic Data Developer declared
Data Not Linked to You — App Functionality — Diagnostics — Performance Data Developer declared
Data Not Linked to You — Diagnostics Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

4.10
Fixed issue with the number of decimal digits to display was not being remembered if you used the Floating number of digits mode. Some UI fixes to better support Dark Mode.
4.11
Export Amortization Schedule as CSV in addition to PDF!
4.12
Export Amortization Schedule as CSV in addition to PDF! Fixed display issue with exponents.
4.13
Improved Dark Mode Support. Updated links to our website.
4.14 · 23 Apr 2026
Added Liquid Glass icon, so you can customize and tint the icon to your preferred colors. Updated Cash Flows and Stats screens to display numbers with thousands groupers (i.e. "15,000" instead of "15000") to make it easier to check that you're entering the correct values.
4.6
Fixes to Depreciation and some Easy Modes.
4.7
Added German Store Translation
4.8
Fix visual issue with decimal point in rare cases.
4.8.1
Added a few features: - Orange Shift DISP Equals will now temporarily show you more decimal places - 10bii+: Using RCL on the 20th register works properly now - 10bii+: Using RCL Equals will recall the most recent calculated value - 10bii+: n! can now handle negative and fractional numbers - 10bii+: Fixed some issues caused when using the DATE function incorrectly
4.8.2
Added ability to Copy/Paste on the main calculator display. (Just tap and hold on the number.) Improved Split Screen.
4.8.3
Fixed layout issues with Easy Modes.
4.8.4
Now supports iPhone X.
4.8.5
Fixed 10bii+ issue with date addition which would report the wrong day of the week for users in certain timezones.
4.8.6
Improved algorithm for I/YR calculations.
4.8.7
Fixed an issue with Payments per Year when reloading a saved Cashflow Series. Improved UI for iPhone X and iPad Pro.
4.9
Updated for iOS 13 (fixes a crash when using the CFj and some other screens).
4.9.1
Updated for iOS 13 (fixes a crash when using the CFj and some other screens). Updated to support Dark Mode.
4.9.10
Fixed rare issue with Num Days/Delta Days calculations using 360 day year (in the 10bii+ upgrade).
4.9.2
Updated for iOS 13 (fixes a crash when using the CFj and some other screens). Updated to support Dark Mode. Fixed daylight saving time issue with calculating the number of days between two dates (10bii+ mode)
4.9.3
Fixed a few issues that caused the app to crash in rare situations.
4.9.4
Fixed problem that was causing the Welcome alert to show up every time the app was opened, sorry about that!
4.9.6
Fixed issue with using SWAP with empty values.
4.9.7
Better handles situations where 0 fractional digits are displayed, also when trying to send results via email when email is not configured.
4.9.8
Fixed issue with RCL/STO. If you encounter any problems using RCL/STO, please contact [email protected] to get it resolved ASAP.
4.9.9
Fixed issue with Amortization Schedule in Begin Mode.

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Alternatives

10BII Calc HD — Same category + similar ratings

Availability by market

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.
Screenshots: not yet collected

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AppCorpus MCP gives your agent current app data, prices, screens, features and sources.

Example prompt

Compare 10bii Financial Calculator with 10BII Calc HD.

View JSON

GET /api/v3/apps/360256797

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          "author": "Professional Borrower",
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      "app_id": 382452060,
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