AZ Calculator: AI & More

The AI math solver works without an internet connection

Most AI tools demand a live data connection. This one does not. The calculator app lets you take a screenshot of a math problem and get a step‑by‑step explanation, all offline. That is unusual for an AI‑powered feature. The app packs a basic calculator, a scientific calculator, a BMI tracker, a body fat estimator, a calorie counter, a currency converter with 170+ currencies, and a unit converter covering length, mass, area, volume, time, temperature, force, energy, power, pressure, speed, fuel efficiency, and data size. All of that fits into a lightweight package that runs without lag on older devices.

The core idea is simple: one app for every type of calculation. Students use it for homework. Travelers use it for currency conversions. Health‑conscious users track their BMI and body fat. The AI Math Solver is the headline feature. Snap a picture of an equation, and the app walks you through the solution. No typing required. No manual input errors. Just a screenshot and a clear explanation. That alone sets it apart from basic calculator apps that only do arithmetic.

How the screenshot‑to‑solution workflow actually works

Open the app and tap the AI Math Solver icon. Grant camera permissions if prompted. Take a photo of a handwritten or printed math problem. The app processes the image, recognizes the equation, and displays a step‑by‑step breakdown of the solution. It handles algebra, calculus, trigonometry, and basic arithmetic. The explanation shows each step clearly, making it useful for students who need to understand the process, not just the final answer. The offline capability means you can use it in a classroom, a library, or anywhere without Wi‑Fi.

The scientific calculator complements the AI solver. It includes trigonometric functions, logarithms, exponentials, and memory storage. Switch between basic and scientific modes with a single tap. The interface is clean and uncluttered, with large buttons that are easy to tap. The app remembers your last calculation, so you can pick up where you left off. The currency converter pulls real‑time exchange rates for 170+ fiat currencies and several cryptocurrencies. Rates update automatically when you have a connection, but the app caches the last known rates for offline use.

Comparing the BMI tools and the unit converter in practice

The BMI calculator now has improved category boundaries. The latest update refined the ranges for underweight, normal, overweight, and obese classifications. It also handles empty or invalid measurements more safely, preventing crashes or nonsensical outputs. That fix came directly from user feedback. The body fat calculator and calorie counter work together. Enter your age, gender, weight, and height, and the app estimates your body fat percentage and daily calorie needs. These numbers are approximations, but they give a useful baseline for fitness tracking.

The unit converter is exhaustive. It covers 13 categories, from length and mass to fuel efficiency and data size. You can convert meters to feet, kilograms to pounds, Celsius to Fahrenheit, and gigabytes to megabytes. The currency converter supports 170+ currencies and cryptocurrencies like Bitcoin and Ethereum. Exchange rates come from a trusted provider and update regularly. The app also includes a percentage calculator and a tip calculator. The percentage calculator handles discounts, tax, and markups. The tip calculator splits bills among multiple people, making it handy for group dining.

What the developer has changed and what remains the same

The latest update, version 0.0.30, focused on the BMI calculator. The developer refined the category boundaries to align with standard medical guidelines. Empty or invalid inputs no longer cause errors. The changelog also mentions improved performance, updated dependencies, and minor bug fixes. The app has only 19 reviews on the Play Store, which suggests a relatively small user base. That is not necessarily a negative. It could mean the app is new or that it has not yet gained widespread attention.

The developer, Arzensoft, is based in Taiwan. The email address is [email protected]. The app is free to download, but it includes in‑app purchases. The exact pricing is not listed on the Play Store, but the iOS version mentions in‑app purchases. The app collects personal information, photos, and videos, and shares device IDs with third parties. Data is encrypted in transit, and users can request deletion. The privacy policy is available on the developer's website.