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The original All-In-One Calculator & Converter
All-In-One Calculator combines a scientific calculator with over seventy built-in calculators and converters for everyday math, finance, and measurement.
All-In-One Calculator is a multi-purpose math companion that blends a scientific calculator with everyday utilities. It centralizes arithmetic, algebra, geometry, finance, health, and date tools so users can handle everything from homework to household planning inside one consistent, polished application.
Beyond basic equations, it includes unit and currency converters, mortgage and loan helpers, BMI and calorie estimators, and time calculators. Smart search, saved history, and thoughtful layouts make these capabilities quick to find and reuse, which saves effort whenever repetitive or multi-step calculations appear.
Free with optional Pro upgrades: 9.99 lei monthly, 39.99 lei yearly, 79.99 lei lifetime
| Feature | Free | Premium |
|---|---|---|
| Advertising | Shows occasional ads within calculator and converter screens. | Removes ads entirely for an uninterrupted, full-screen calculation environment. |
| Calculator coverage | Includes all seventy-plus calculators and converters with full functionality. | Provides identical tool coverage; purchase simply enhances comfort and supports development. |
| Themes and layouts | Allows switching calculator layouts and using system light or dark appearance. | Retains same customization options without visual clutter from embedded advertisements. |
| History and notes | Stores recent calculations and enables copying results into other apps or calculators. | Keeps identical history features, easier to review without banners pushing content down. |
| Currency and unit conversion | Offers full currency and unit conversion with offline support for saved exchange rates. | Keeps conversion features unchanged while removing any ad-related distractions around results. |
| Device support | Available on Android phones, tablets, Chromebooks, and iOS devices with modern OS versions. | Works on the same devices once purchase is restored from the respective app store. |
| Pricing | Free download with complete core feature set available immediately. | Optional monthly, yearly, or lifetime Pro purchase; no recurring charges if choosing lifetime. |
Yes. Most calculators and unit converters work completely offline once installed, including many currency tools that cache recent rates. However, downloading the app, updating exchange rates, and processing purchases or restoring Pro access all require an active internet connection at least occasionally.
The free version already includes the full set of calculators, converters, and scientific functions. Upgrading to Pro simply removes advertising and supports ongoing development; it does not unlock extra math features or hide core tools behind a subscription paywall.
For most school, university, and everyday engineering tasks, the app comfortably replaces a traditional scientific calculator. It adds advantages like history, searchable tools, and built-in converters, though high-stakes exams may still require approved standalone hardware under specific testing regulations.
Google Play and the App Store list All-In-One Calculator as collecting certain personal identifiers, diagnostics, and usage data. These details follow each platformu2019s privacy disclosures. Users wanting fewer personalized ads can consider purchasing Pro or adjusting tracking and advertising settings at the operating-system level.
All-In-One Calculator is available on Android through Google Play and on iOS and iPadOS through the App Store. It supports modern operating systems, including iOS 15.6 or later, and runs well on current phones, tablets, and many Chromebooks that support Android apps.
