# Personal Formulator > Personal calculator for finance, loans, discounts, and unit conversions. (iPhone/iPad app by Historycentral.com Inc.) - Source: https://appshunter.io/ios/app/personal-formulator/id296173495 (this page in markdown: same URL + `.md`) - Developer: [Historycentral.com Inc](https://appshunter.io/developer/1744330560) - Category: Finance, Productivity - Price: Free with in-app purchases - Rating: 2.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 18.6 · 19 MB - Languages: American English - Released: 2008-11-15 - Data updated: 2026-06-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/personal-formulator/id296173495/reviews.md ## What is Personal Formulator? PERSONAL FORMULATOR (PFormulator) is the only tool you need for personal calculations. With nearly 30 formulas PFormulator will calculate your tips and how much a new purchase will increase your minimuim credit card purchase. In this day of wild sales, it will tell you the true meaning of multiple discounts. PERSONAL FORMULATOR includes: formulas for calculating car payments, mortgages as well as, how much you must save to reach a specific financial goal. The app also includes conversion formulas for many daily needs: such as miles to Kilometers, or meters to feet... cooking conversion formulas that convert tablespoons to milliliters or ounces to grams... tip calculations, car loans, insurance reimbursements, and monthly car loans. All formulas can be saved for future reference. A number of the formulas include charting as an option. In addition, you can create your own list of preferred formulas. PFormulator is a great formula calculator! ## Key features - Nearly 30 personal calculation formulas - Financial goal tracking - Loan and mortgage calculations - Multiple discount analysis - Unit and cooking conversions - Save and organize preferred formulas - Formula charting options ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Premium | $0.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/personal-formulator/id296173495/reviews.md ### 2/5 — Update made it useless *2016-10-16, version 3.0* I used this app frequently to convert metric to feet/inches but now the only option is 'square' - why would you think every conversion wanted is perfectly square? ### 1/5 — conversions? *2009-05-11, version 0* just bought this - no conversions were included and that's what i mainly wanted ## Frequently asked questions about Personal Formulator ### What types of financial calculations can Personal Formulator perform? Personal Formulator can calculate tips, credit card purchase impacts, multiple discounts, car payments, mortgages, and savings goals. It also includes insurance reimbursement calculations. ### Does Personal Formulator offer unit and cooking conversions? Yes, Personal Formulator includes conversion formulas for daily needs like miles to kilometers and meters to feet. It also provides cooking conversions such as tablespoons to milliliters and ounces to grams. ### Can I save my frequently used formulas in Personal Formulator? Yes, all formulas can be saved for future reference. You can also create your own list of preferred formulas for quick access. ### Does Personal Formulator have ads? No, Personal Formulator does not contain advertisements. It is a free application with optional in-app purchases. ### What devices is Personal Formulator compatible with? Personal Formulator is available for iPhone and iPad devices. ### How often is Personal Formulator updated? The latest version, 4.0, was last updated on February 18, 2026. The app was initially released on November 15, 2008. ### What is the age rating for Personal Formulator? Personal Formulator has an age rating of 4+, making it suitable for a wide range of users. ### What do users think of Personal Formulator? Based on available data, Personal Formulator has a rating of 2.0 stars from 1 rating. This suggests a mixed or potentially negative user reception. ## Version history (last 5 releases) ### 4.0 — 2026-02-18 Completely rewritten code base. Ability to chart some results, save as many results as you want. New interface ### 3.0 — 2016-09-29 This app has been updated by Apple to display the Apple Watch app icon. Totally rewritten from scratch, both the code and the interface ### 2.1 — 2009-08-09 Reintroduced the Conversion Section that was removed in version 2.0 ### 2.0 — 2009-05-10 This version vastly improves convinience and clarity by requiring even less tapping and providing a clearer overview. The application now launches faster and remembers where you left it the last time, to make it even more accessible. New Features: • A completely redesigned calculator. • A separate overview with improved value formatting. • Results can now be sent by E-mail. • Faster launch time. • The application is now launched into the exact same state where you left off last time, to save even more navigation and data entry hassles. • Negative numbers are now displayed in red in the overview. Fixes: • Some results were being truncated rather than rounded. They are now always rounded. • Thousands grouping separators are used for all numbers now, not just for currency as it used to be. Known Issues: After returning to a category list from the overview, the last row in long lists will become unreachable. Workaround: go back to the previous level and tap the category again. ### 1.2 — 2009-02-10 No release notes. ## Apps similar to Personal Formulator | App | Rating | Price | Category | | --- | --- | --- | --- | | [CJCalc Financial Calculator](https://appshunter.io/ios/app/cjcalc-financial-calculator/id6748351365) | — | Free | Finance | | [BestCalc Financial Calculator](https://appshunter.io/ios/app/bestcalc-financial-calculator/id1229348639) | 4.2 (6) | Free | Finance | ## More apps by Historycentral.com Inc - [Finance Formulator](https://appshunter.io/ios/app/finance-formulator/id294194640) - [Electrical Formulator](https://appshunter.io/ios/app/electrical-formulator/id299749412) - [Plumbing Formulator](https://appshunter.io/ios/app/plumbing-formulator/id303497783) - [Carpentry Formulator](https://appshunter.io/ios/app/carpentry-formulator/id305583131) - [Builder's Formulator](https://appshunter.io/ios/app/builders-formulator/id306247596) All apps by Historycentral.com Inc: https://appshunter.io/developer/1744330560 --- *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 2026-06-04.*