# CALC 1 Financial Calculator — More Solutions, Simplified! > Advanced financial calculator with data management and visualization for analysis. (iPhone/iPad app by CalcFxC, LLC.) - Source: https://appshunter.io/ios/app/calc-1-financial-calculator/id1394715582 (this page in markdown: same URL + `.md`) - Developer: [CalcFxC, LLC](https://appshunter.io/developer/395979596) - Category: Finance, Business - Price: Free with in-app purchases (on sale, was $5.99) - Rating: 3.90/5 from 54 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 16.1 · 11 MB - Languages: American English - Released: 2018-08-19 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/calc-1-financial-calculator/id1394715582/reviews.md ## What is CALC 1 Financial Calculator? CALC 1 combines the power of advanced financial calculations with an intuitive, user-friendly interface. Whether you're a working professional, a small business owner, an individual looking to manage your personal finances, or a student seeking to enhance your financial education, CALC 1 provides the tools you need for both basic and complex financial analysis. Key Features: 1. Intuitive Interface with "At a Glance" Functionality: - Excellent handling of everyday expressions with both values and operators displayed - UNDO support for both expressions and individual keys - Key Previews show input values directly on calculator keys - Easily verify inputs and understand calculations at a glance 2. Comprehensive Data Management: - List Manager for effortless data handling: verify, edit, and paste data for fast, accurate input 3. Visual Problem-Solving: - One-tap plots for quick data visualization - Various chart types to help understand complex financial concepts visually 4. Contextual Help and Documentation: - Long-press any key to see its detailed description - Quick access to built-in documentation and examples for every calculator, plus videos and "How to's" for many subjects 5. Detailed Calculation History: - Review your work with comprehensive calculation records - Verify inputs and keep a record of your financial analysis 6. Familiar Interfaces: - Includes reproductions of popular HP 12C and 10bII calculators - Seamlessly share data between CALC 1 and these familiar interfaces 7. Focused Calculators: - Each calculator dedicated to a specific financial topic, keeping the interface simple and easy to use - Wide range of calculators covering various aspects of financial analysis 8. Powerful Functionality: - Go beyond hardware calculators with advanced features like data visualization and complex financial modeling - Suitable for both basic calculations and advanced financial analysis What's Included in the Free Version: Focused Calculators: - Time Value of Money (TVM) - Cash Flows - 1 List Statistics - 2 List Statistics - Percent Change and Total - Markup and Margin - Basic Slide Rule Calculator - Curve Fitting: Linear Function Calculators: - Loan Payment - Savings - Percent Change of Periods - Breakeven Analysis - Cost of Not Taking a Cash Discount - Economic Order Quantity - Simple Interest Loan - Days - Fuel Savings - Normal Distribution - CDF - Z - Test - Effective Interest rates This comprehensive free version provides a powerful set of financial tools, matching or exceeding the capabilities of many popular hardware calculators. Subscription Benefits: - Access all 19 Focused Calculators and over 70 Function Calculators - Ad-free experience - Available at the lowest price tier Why Choose CALC 1? CALC 1 goes beyond the limitations of hardware calculators, empowering you to calculate, visualize, and understand complex financial concepts effortlessly. From basic calculations to advanced financial modeling, CALC 1 keeps it simple while providing powerful functionality. Perfect For: - Working professionals needing both basic and advanced financial tools - Small business owners for day-to-day calculations - Individuals looking to maximize their hard-earned money through smart financial planning - Students enhancing their financial education Don't just calculate - understand. With CALC 1, seeing is believing. Download now and experience the power of intuitive financial analysis, starting with our feature-rich free version! ## Key features - Intuitive interface with undo support - Comprehensive data management with List Manager - One-tap plots for data visualization - Contextual help and documentation - Detailed calculation history - Emulates HP 12C and 10bII calculators - Dedicated financial calculators ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | CALC 1 Financial Subscription | $0.99 | per month | ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/calc-1-financial-calculator/id1394715582/reviews.md ### 4/5 — Latest version is buggy *2024-10-29* Latest version regularly changes RPN mode in settings back to algebraic mode without any user input. **Developer response:** Thank you for reporting this issue. Another user had already contacted me directly through our website's Contact form about the calculation mode occasionally resetting to chain mode (not algebraic as mentioned). This was addressed in version 4.76, which is now available in the App Store. For the fastest response on any matters, I encourage users to reach out through the "Contact" link on our documentation website. This allows me to gather the needed information and address concerns quickly, as happened in this case. Thank you for taking the time to provide feedback. It helps ensure CALC 1 continues to serve its global user base well. ### 1/5 — Asking for review *2024-01-07* Just bought this app and you’re asking for a review? I find this unacceptable. **Developer response:** We apologize for the premature review request. We've since updated our app to ensure review prompts only appear after multiple uses. We value your feedback and have used it to improve the user experience. We hope you'll give our app another try with these changes in place. If you have any other concerns, please contact our support team. Thank you for your understanding. ### 5/5 — I'm an old RPN guy *2023-03-12* I love this app. It works just like my old HP calculator. ### 1/5 — Non stop pestering for a review *2023-02-11* I’ll be switching to a calculator that leaves me alone. **Developer response:** We sincerely apologize for the frequent review requests. We've taken your feedback seriously and have significantly reduced the frequency of these prompts. Our updated system now ensures users have ample time to use the app before any review request appears. We appreciate your feedback, as it helps us improve. We hope you'll consider trying our app again with these new changes. If you have any other concerns, please don't hesitate to contact our support team. ### 1/5 — Seems great, but asked for a rating 3 seconds after buying *2022-02-08* If I wanted to be slowed down by popups I'd use a calculator with ads. I've owned this app for all of 3 seconds and it's asking for a review, so here's my review so far. **Developer response:** Sorry that happened! It is definitely not my intention to ask for a review so soon.   I't looks like there was a change in how the "StoreKit" "asks the user to rate or review your app, if appropriate." I am working on a general update to these iOS changes and will make sure this does not happen again. ### 5/5 — Perfect for teaching my finance students *2019-12-17* I teach an upper lever finance class at a local university. The Finance department requires that the students use TI BAs, so I use that primarily for in class examples. When I prepared for class and write my exams, I always work the examples on CALC 1 to verify my answers. I love how I can export the history details to Notes. And I also have the inputs for the TVM calculations recorded (N, I/YR, PV, PMT, FV, PYR, CYR and BEG/END) so I can double check all my inputs and answers. Just having the values shown right on the keys prevented a lot of miscalculations. I like that this app also has a 12C that I am very familiar with having taken the CFA. I’d give it an A! ### 5/5 — Doesn’t CALC correctly *2019-10-12, version 415* I have been using the HP 12C for 30 years, and thought this app could replace the hardware. Nope! It simply doesn’t calculate correctly, sometimes returning different answers on the same data entry. Shame on these guys. ### 5/5 — Outstanding *2018-10-22* I usually use an HP 12CP but this has replaced that long standing relationship. Seeing the value on the keys is worth the price of admission. I am amazed by the scope of this app. HP should hire the developer to design their next product. ## Frequently asked questions about CALC 1 Financial Calculator ### What financial calculators are included in the free version of CALC 1? The free version of CALC 1 includes calculators for Time Value of Money (TVM), Cash Flows, 1 and 2 List Statistics, Percent Change and Total, Markup and Margin, a Basic Slide Rule Calculator, and Linear Curve Fitting. It also offers function calculators for Loan Payment, Savings, and Breakeven Analysis, among others. ### What are the benefits of subscribing to CALC 1? Subscribing to CALC 1 unlocks access to all 19 Focused Calculators and over 70 Function Calculators. Subscribers also enjoy an ad-free experience and can access these features at the lowest price tier. ### Does CALC 1 offer a free trial for its subscription? Yes, the CALC 1 Financial Subscription offers a 7-day free trial. The subscription is priced at $0.99 per month. ### How does CALC 1 handle data input and verification? CALC 1 features an intuitive interface with 'At a Glance' functionality, displaying both values and operators. It includes UNDO support for expressions and keys, key previews, and a List Manager for effortless data handling, verification, editing, and pasting. ### Can CALC 1 help visualize financial data? Yes, CALC 1 supports one-tap plots for quick data visualization and offers various chart types to help users understand complex financial concepts visually. ### Does CALC 1 have ads? Yes, the free version of CALC 1 contains advertisements. Users can remove ads by subscribing to the premium version. ### What devices is CALC 1 available on? CALC 1 is available on iPhone and iPad devices, making it accessible for users on the Apple ecosystem. ### How often is CALC 1 updated? CALC 1 was last updated on November 3, 2024, with version 4.76. This indicates regular updates to improve functionality and address user needs. ## Version history (last 5 releases) ### 4.76 — 2024-11-03 Version 4.76 Update: • Fixed an issue where calculation mode (RPN/Algebraic) would occasionally reset to chain mode. Version 4.75 Enhanced External Keyboard Support: • For MacOS users: Keyboard support for non-touchscreen devices • Support for Bluetooth keyboards on iPhone and iPad • Faster data entry with numeric keypads • Added support for Enter and Clear keys on Apple numeric keypads • New letter key shortcuts: Shift for secondary functions, STO for quick store, RCL for easy recall This update improves usability for iPad users and adds convenient keyboard input for those using the app on MacOS devices. Full documentation on external keyboard support and other features available on our website. ### 4.75 — 2024-10-08 Enhanced External Keyboard Support: • For MacOS users: Keyboard support for non-touchscreen devices • Support for Bluetooth keyboards on iPhone and iPad • Faster data entry with numeric keypads • Added support for Enter and Clear keys on Apple numeric keypads • New letter key shortcuts: Shift for secondary functions, STO for quick store, RCL for easy recall This update improves usability for iPad users and adds convenient keyboard input for those using the app on MacOS devices. Full documentation on external keyboard support and other features available on our website. ### 4.73 — 2024-09-28 Additional accessibility descriptions have been added to: - CALC 1 Calculator Keys - The Calculator toolbar - The List Manager Toolbar ### 4.72 — 2024-09-22 New right-swipe gestures in the List Manager: - Copy values to the stack - Move a row to the top Improved cash flow management with new row operations Updated build for latest iOS. Added Subscription. ### 4.71 — 2024-09-18 New right-swipe gestures in the List Manager: - Copy values to the stack - Move a row to the top Improved cash flow management with new row operations Updated build for latest iOS. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*