# RBA Calculator — CFA FRM CPA Calculator

> Professional iOS financial calculator with 12 worksheets for finance professionals and students. (iPhone/iPad app by 上海树莓教育科技有限公司.)

- Source: https://appshunter.io/ios/app/rba-calculator/id1545331477 (this page in markdown: same URL + `.md`)
- Developer: [上海树莓教育科技有限公司](https://appshunter.io/developer/1523963012)
- Category: Finance, Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 26.2 · 3 MB
- Languages: American English
- Released: 2020-12-18
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/rba-calculator/id1545331477/reviews.md

## What is RBA Calculator?

Professional financial calculator for iOS. Built for CFA, FRM, CPA candidates and financial professionals with high-precision calculations.

WHY FINANCIAL CALCULATOR PRO?

- High Precision - Swift Decimal engine with 28 significant digits
- Exam Ready - Designed for CFA, FRM, CPA, and banking certification exams
- Bug-Free Input - Fixed decimal input, negative numbers, and cash flow entry
- Clean Interface - Intuitive design matching professional calculator layout

12 POWERFUL WORKSHEETS

TVM (Time Value of Money)
Calculate N, I/Y, PV, PMT, FV with full amortization support. Perfect for mortgage, loan, and investment planning.

Cash Flow Analysis
NPV, IRR, NFV, Payback Period, Discounted Payback, and Modified IRR. Make informed investment decisions.

Bond Calculator
Bond price, yield to maturity, accrued interest, and modified duration. Supports ACT/360 and 30/360 day count conventions.

Depreciation
6 methods: SL, SYD, DB, DBX, SLF, DBF. Complete asset depreciation analysis.

Statistics
Single and bivariate statistics with 4 regression types: Linear, Logarithmic, Exponential, and Power.

Basic Calculator
Arithmetic operations + scientific functions (sin, cos, tan, log, ln, e^x, factorial, permutations, combinations).

Percent Change
Percentage and profit/loss calculations.

Interest Conversion
Convert between nominal and effective annual rates.

Date Calculator
Calculate days between dates with ACT and 30/360 conventions.

Memory Registers
10 memory registers with STO, RCL, and arithmetic operations.

Cost/Sale/Margin
Cost, selling price, and gross margin analysis.

Break-Even Analysis
Find break-even points with fixed cost, variable cost, and price.

PERFECT FOR:

- CFA Level I, II, III candidates
- FRM Part I and II candidates
- CPA exam preparation
- Banking and securities certification
- Financial professionals (investment, credit, asset management)
- Business and finance students
- Real estate and mortgage analysis

PRIVACY:

We respect your privacy. This app does not collect personal data. All calculations are performed locally on your device.

Support: support@smartreader.cn
Privacy Policy: https://rba.smartreader.cn/privacy.html

## Key features

- High-precision calculations
- 12 powerful financial worksheets
- Exam-ready for CFA, FRM, CPA
- Bug-free input with fixed decimal
- Intuitive professional interface
- Privacy-focused, no data collection

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/rba-calculator/id1545331477/reviews.md

### 1/5 — 기능

*2024-01-11*

c/ce ,aos 등등 기능이 작동 안합니다. 환불 요청했습니다. 승낙바랍니다.

### 1/5 — 不能用，骗子

*2024-01-04*

不能用，骗子

### 1/5 — 完全不能用 啊

*2023-11-12*

年底考cfa，这玩意完全不能用啊，浪费八块钱，胡扯嘛

### 1/5 — 垃圾

*2023-05-20*

算法做的狗屁不是，计算根本算不出来

### 2/5 — Часть функций не активна

*2021-12-22*

Не работает стирание данных в cf

### 1/5 — 骗钱的

*2021-10-16*

居然计算优先级都不支持，存储记忆更不用说了。iPhone官方你不审核吗就让软件挂出来

### 1/5 — 불편

*2021-04-29*

불편 답이 안나옴,,

### 1/5 — cannot rightly calculate PV etc.

*2021-02-28*

cannot rightly calculate PV etc.

**Developer response:** I am sorry for your bad experience. You can try the latest version(above v1.2.7). We optimal algorithm based on pv and fv.
Tips:Before calc ,you should check the mode is bgn or not and clear TVM values frist.

### 5/5 — cfa的好帮手

*2021-01-30*

简单易用的小工具

### 3/5 — 问题

*2021-01-18*

小数点不能使用，比如我想输入0.5或者4.5 只要是带小数点都输不进去，只能输入1以上的整数。负号也不能使用，现金流计算也和德州计算器结果不一样。

**Developer response:** 您的问题已修复，后续遇到问题可以加开发者qq：614443799，我们有专人帮您解决问题。

## Frequently asked questions about RBA Calculator

### What is RBA Calculator used for?

RBA Calculator is a professional financial tool designed for complex calculations related to time value of money, cash flow analysis, bond pricing, depreciation, statistics, and more. It's built to assist finance professionals and students in their daily tasks and exam preparations.

### Is RBA Calculator suitable for exam preparation?

Yes, RBA Calculator is specifically designed to be exam-ready for candidates pursuing certifications such as CFA (Levels I, II, III), FRM (Parts I and II), and CPA. Its features and precision aim to mimic professional financial calculators used in these exams.

### What types of financial worksheets are included in RBA Calculator?

RBA Calculator includes 12 powerful worksheets covering Time Value of Money (TVM), Cash Flow Analysis (NPV, IRR), Bond Calculator, Depreciation (6 methods), Statistics (single and bivariate), Basic Calculator with scientific functions, Percent Change, Interest Conversion, Date Calculator, Memory Registers, Cost/Sale/Margin analysis, and Break-Even Analysis.

### How does RBA Calculator handle privacy?

RBA Calculator respects user privacy by not collecting any personal data. All calculations are performed locally on the user's device, ensuring that sensitive financial information remains private and secure.

### What is the price of RBA Calculator?

RBA Calculator is a paid application, available for a one-time purchase price of $0.99. This purchase grants access to all its features and functionalities without any recurring fees or subscriptions.

### On which devices can RBA Calculator be used?

RBA Calculator is available for Apple devices, including Mac, iPhone, iPad, and iPod. Its interface is optimized for a seamless experience across these platforms.

### How often is RBA Calculator updated?

The latest version of RBA Calculator is 2.0.0, which was last updated on May 26, 2026. While specific update frequency isn't detailed, this indicates ongoing development and support for the application.

### Does RBA Calculator have ads?

No, RBA Calculator is ad-free. As a paid application, it provides an uninterrupted user experience without any advertisements.

## Version history (last 5 releases)

### 2.0.0 — 2026-05-26

Version 2.0 - Complete Rewrite

- Swift Decimal high-precision engine
- TVM, Cash Flow, Bond, Depreciation, Statistics worksheets
- Dark mode and landscape support
- Bug fixes and performance improvements

### 1.3.6 — 2022-03-03

fixed some bugs

### 1.3.5 — 2021-06-25

loan calculation

### 1.3.4 — 2021-05-19

support bond  work sheet

### 1.3.2 — 2021-04-01

RBA calculator is a mobile application software based on BA Ⅱ plus calculator. The method of use is the same as that of physical calculator.
Full function analog Ti BA II plus professional financial calculator for iPhone, iPad and MacOS. It adopts the same algorithm and formula as the original version, provides the same function and operation sequence, and provides better user experience. Compared with other financial calculators and RPN input of HP 12C, it is more simple and convenient.
Calculation of time value of money.
Cash flow analysis, NPV and IRR, nfv, Pb, DPB, RI and mod.
· loan calculation.
· break even, profit and percentage variance calculations.
· bond price and yield "to maturity" or "to be redeemed" calculations, as well as modified maturity (DUR).
Statistical analysis.
· 10 storage memories.
The choice of chain and algebraic operating system methods.
Scientific ability, including logarithm, sine, cosine, etc.
· turn on / off button click feedback sound option, and
It is easy to set number format, angle mode, date format, etc. through in app settings.
Automatically save / restore all formatting during application shutdown / startup.
Solution time value (TVM) calculation
Generate amortization plan
· use four different methods to calculate depreciation
11 worksheets, including bonds, break even analysis, cash flow analysis, dates, percentages, depreciation, interest conversion, memory, cost of sales, profit and statistics
Full range of scientific calculations, including logs and trigonometric functions
· chain or algebraic computation
More...

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*
