ClevCalc - Calculator

Review by eFreeware

Most phones ship with a calculator that handles the basics and little else. The moment you need to convert miles to kilometers, split a restaurant bill or work out a loan repayment, you are left juggling separate apps or doing the arithmetic by hand. ClevCalc, from developer Cleveni Inc., is built around the idea that one app can cover all of that.

It is a free productivity app for Android that has been on the Play Store since January 2013 and has passed 100 million installs, with a 4.6 average from more than 1.2 million ratings. That kind of reach suggests a lot of people have found a slot for it in their daily routine, and the breadth of what it includes goes some way to explaining why.

The pitch is straightforward: instead of a single calculator screen, you get a collection of 18 tools covering math, conversions, money, dates and health. The developer describes it as an all-in-one tool for everyday tasks, and having that many functions in one place is the main reason to consider it over the calculator already on your phone.

One app, eighteen everyday tools

The core of ClevCalc is the scientific calculator. It handles basic arithmetic along with squares, roots, parentheses and percentages, and adds trigonometric, exponential and logarithmic functions for more advanced work. If you have ever needed a sine or a logarithm outside a classroom, you know how awkward that is on a stock calculator app.

Two details stand out for anyone who types longer expressions. The cursor can be moved freely so you can go back and edit part of a calculation without starting over, and a history log keeps previous results within reach. Neither is unusual on its own, but together they make the calculator feel less like a throwaway utility.

Around that core sits a unit converter covering length, weight, area, volume, time, temperature, pressure, speed, fuel efficiency and data size. These are the categories most people actually run into, whether that is checking a recipe in metric or sizing up a data plan, and having them grouped in one place saves hunting for a dedicated converter.

Currency conversion and time across the globe

The currency converter supports 135 currencies, including USD, EUR, JPY, GBP and CNY, and applies real-time exchange rates automatically. For anyone traveling or paying for something priced in another currency, that automatic update is the difference between a useful tool and a chore.

A world time converter rounds out the travel side of the app, covering more than 400 cities and adjusting for daylight saving time on its own. If you regularly coordinate with people in other time zones, that is the sort of thing you would otherwise look up in a browser every time.

The currency tool depends on live rates. That is inherent to how exchange rates work rather than a flaw in the app.

Money, dates and health in the same place

The financial tools are where ClevCalc starts to look less like a calculator and more like a small toolkit. A loan calculator works out total interest and the full repayment amount, a discount calculator gives you the reduced price instantly, and a sales tax calculator produces the total including tax. A savings calculator goes further, showing interest after tax and the final balance.

The tip calculator is the one I would expect to get the most use. It works out the tip automatically, can exclude tax from the calculation and splits the total between however many people are paying. Anyone who has done that math at the end of a meal knows the appeal.

There are also a unit price calculator for comparing value across products, a percentage calculator for increases, decreases and proportions, and a hexadecimal converter for decimal-to-hex work. On the date side, a date calculator handles anniversaries and important dates, while an ovulation calculator works from the menstrual cycle and allows date-based notes.

Health gets two entries: a BMI calculation and a BMR calculation. A GPA calculator rounds out the student-facing side. None of these are deep tools on their own, but the point of the app is that you do not have to install a separate one for each job.

What it asks of you

ClevCalc is free to download and supported by ads, and it offers in-app purchases. The most recent update, version 2.19.0, added an option to buy a version without ads, which gives anyone bothered by them a way to remove that trade-off. The same update also introduced the percentage calculator.

The other consideration is simply the size of the toolset. Eighteen calculators in one app means a fair amount of ground to cover, and the ones you use daily will sit alongside many you may never open. Whether that is a strength or clutter depends on how you feel about a single app doing a lot.

Students, professionals and travelers all fit the mix of tools well. The app leans toward practical, everyday arithmetic rather than specialized professional work, so the value you get out of it tracks how often those everyday calculations come up for you.

A fit for students, travelers and household budgeting

The clearest case for ClevCalc is someone who wants one app instead of half a dozen. A student checking a GPA, converting units for a lab report and working through trigonometry has most of what they need in a single install. A traveler converting currency and checking the time in another city gets two of the app's stronger tools in one place.

Household budgeting is another natural fit. Loan repayments, savings interest, discounts, sales tax and unit prices are exactly the calculations that come up when you are comparing purchases or planning a big expense, and having them together means you are not opening a spreadsheet for a two-minute question.

The app is not aimed at people who need a specialized financial or engineering tool. It covers a broad set of common calculations competently rather than going deep on any one of them, and that breadth is the whole point of what Cleveni has built.

The case for installing it

ClevCalc stands out through range rather than novelty. The scientific calculator, unit converter, currency converter and tip calculator are the tools most people will reach for, and the remaining fourteen cover the situations where you would otherwise search for something else. The 4.6 average across more than 1.2 million ratings suggests that combination works for a lot of users.

The ads and the optional purchase are the main friction, and the recent no-ads option addresses that directly for anyone who finds them irritating. Beyond that, the app is what it says it is: a broad collection of everyday calculators with a clean presentation.

If you want a single free app to handle math, conversions, money and dates, ClevCalc is a reasonable place to start. If your needs are narrow and your phone's built-in calculator already covers them, the extra tools will simply sit unused.

What's new in version 2.24.15

[Version 2.19.0] - Added an option to purchase no ads version - Added ‘Percentage Calculator’