# ConvertCalc — Units, Currency & Themes > All-in-one calculator and unit converter with extensive features and customization. (iPhone/iPad app by Michael Riehl.) - Source: https://appshunter.io/ios/app/convertcalc/id6756512186 (this page in markdown: same URL + `.md`) - Developer: [Michael Riehl](https://appshunter.io/developer/1861093934) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 28 MB - Languages: Japanese, Chinese (Simplified, China), Latin American Spanish - Released: 2025-12-18 - Data updated: 2026-06-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/convertcalc/id6756512186/reviews.md ## What is ConvertCalc? ConvertCalc – Pro Calculator & Unit Converter Fast. Private. Ad-free. Over 200+ units. The only calculator you’ll ever need. ConvertCalc combines a powerful everyday calculator with an advanced unit converter in one clean, distraction-free app. Built for students, travelers, freelancers, and professionals who need accurate results instantly — without ads or clutter. WHY CONVERTCALC? Unified Workflow Calculate and convert in one step. Enter an equation, get the result, and instantly convert it to any unit. No switching apps. No extra taps. POWERFUL UNIT CONVERSION 19 categories. Hundreds of units. Real-world use cases: Essentials Length, Mass, Volume, Area, Temperature, Time, Speed Travel & Finance Live currency conversion (30+ major currencies) Shoe size conversion (Men, Women, Kids) Science & Engineering Force, Energy, Power, Pressure, Torque, Fuel Consumption Technology Data storage (Bit to Yottabyte) Data transfer speeds Calendar Systems Convert dates across: Gregorian, Japanese, Buddhist, Islamic, Hebrew, Chinese Lunar, Indian, Persian, ISO 8601, ROC Age Finder Instant age calculator and estimator GO PRO – TOTAL CONTROL Unlock the full power of ConvertCalc Pro: Favorite Pairs Save common conversions for quick access (USD to EUR, Meters to Feet, Celsius to Fahrenheit) One-Handed Layouts Compact, Right-handed and Left-handed modes Unlimited Named History Save, label, and organize your calculations Saved Shoe Profiles Store sizes for family and friends Full Organization Reorder currencies and units your way Advanced Rounding Control decimals and precision Premium Customization 50+ themes and custom colors Design your perfect calculator 100% Ad-Free Forever BUILT FOR DAILY USE Works offline (except live currency updates) Smart history tracking No tracking, no ads Clean, modern interface Download ConvertCalc One app. Endless calculations. ## Key features - Unified calculation and conversion workflow - Over 200 units across 19 categories - Live currency conversion - Multiple calendar system conversions - Age calculator - Customizable themes and layouts - Offline functionality (excluding live currency) ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | ConvertCalc Pro | $8.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/convertcalc/id6756512186/reviews.md ### 5/5 — Great converter *2026-01-09* Love that this has every unit you could need to convert including money so it’s great for people who travel. Very user friendly. ## Frequently asked questions about ConvertCalc ### Does ConvertCalc have ads? Yes, ConvertCalc contains advertisements. The app description states it is ad-free, but the provided data indicates it has ads. ### What is the price of ConvertCalc Pro? ConvertCalc is free to download and use. The 'Go Pro' section mentions unlocking full power with additional features, suggesting in-app purchases for the Pro version. ### What devices does ConvertCalc support? ConvertCalc is available for iPhone and iPad devices. ### How often is ConvertCalc updated? The latest version, 1.3.5, was released on January 19, 2026. This indicates frequent updates to the application. ### What is the age rating for ConvertCalc? ConvertCalc has an age rating of 4+, making it suitable for a wide range of users. ### Can ConvertCalc be used offline? ConvertCalc works offline for most functions, including calculations and unit conversions. Live currency updates require an internet connection. ### What kind of units can ConvertCalc convert? ConvertCalc supports over 200 units across 19 categories, including essentials like length and mass, travel-related units like currency and shoe sizes, and scientific units. ### What are the benefits of ConvertCalc Pro? ConvertCalc Pro offers features like saving favorite conversions, one-handed layouts, unlimited named history, saved shoe profiles, full organization of units and currencies, advanced rounding, and premium customization with over 50 themes. ## Version history (last 5 releases) ### 1.3.5 — 2026-01-19 - New keypad button shapes. - Improved keypad visuals so backgrounds match your selected shape. - 24 new premium themes. - Reliability fixes to protect your saved settings and history. - Minor bug fixes. ### 1.3.3 — 2026-01-14 - Ads removed for a cleaner, distraction‑free experience. - New keypad button shapes. - Improved keypad visuals so backgrounds match your selected shape. - 24 new premium themes. - Reliability fixes to protect your saved settings and history. - Minor bug fixes. ### 1.2.2 — 2026-01-06 - A smoother, more welcoming onboarding that gets you set up fast. - Bookmarks for organizing your work. - Fresh keypad layout visuals and smarter swipe actions for quicker math. - Theme improvements so your colors look the way you expect. - A new Age Finder in the calendar converter for instant year lookup. ### 1.2 — 2025-12-28 Improved themes, localization, added more units, added a favorite pairs option, and keyboard layout options. ### 1.1 — 2025-12-19 No release notes. ## More apps by Michael Riehl - [Hours Tracker – Timesheet](https://appshunter.io/ios/app/hours-tracker-timesheet/id6757327518) - [Poop Tracker: Poopy](https://appshunter.io/ios/app/poop-tracker-poopy/id6758719469) All apps by Michael Riehl: https://appshunter.io/developer/1861093934 --- *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 2026-06-01.*