Eight tools.
One app. No internet needed.

ToolBench brings an age calculator, EMI calculator, discount calculator, stopwatch, password generator, coin toss, unit converter, and percentage calculator into a single offline app.

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Tools included
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Permissions required
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Data points collected
The toolset

Every tool opens on one screen and shows its result there

No sign-in, no setup, no navigation beyond opening a tool and going back.

01

Age Calculator

Enter a date of birth to see age in years, months, and days, plus days to the next birthday.

02

Discount Calculator

Enter a price and a discount percentage to see the final price and amount saved.

03

EMI Calculator

Enter loan amount, interest rate, and tenure to see monthly EMI and total interest.

04

Stopwatch

Start, stop, resume, and reset a timer, with lap recording while it runs.

05

Password Generator

Generate a random password with adjustable length and character options.

06

Coin Toss

Flip a virtual coin and keep a running tally of heads and tails.

07

Unit Converter

Convert between units of length, weight, volume, and temperature.

08

Percentage Calculator

Three modes: percentage of a value, what percentage one value is of another, and percentage change.

How it runs

Fully offline, by design

Every calculation happens on the device. Nothing is uploaded, and nothing needs to be.

No internet connection used

The app makes no network calls. It works the same with data on, data off, or in airplane mode.

No sensitive permissions

No camera, contacts, location, storage, or SMS access is requested at install or at runtime.

No account required

There is no sign-up, sign-in, or profile. Every screen is available as soon as the app opens.

Privacy Policy

Last updated: July 2026

This privacy policy describes how ToolBench ("the app") handles information. ToolBench is published by SendlyOwl Communication Pvt Ltd.

Information we collect

ToolBench does not collect, store, or transmit any personal data. All inputs — such as a date of birth, a loan amount, or a generated password — are processed only in the device's memory for the duration of that screen and are not saved, logged, or sent anywhere.

Permissions used

The app does not request camera, contacts, location, microphone, storage, or SMS permissions. The password generator's copy action uses the device clipboard, which does not require a special permission on Android.

Internet access

ToolBench does not use an internet connection. It contains no analytics, advertising, or tracking software.

Third-party sharing

Since no data is collected, no data is shared with or sold to any third party, advertiser, or analytics provider.

Children's privacy

The app does not knowingly collect information from anyone, including children, because it does not collect information from any user at all.

Changes to this policy

If this policy changes in a future version of the app, the updated version will be posted on this page with a revised "last updated" date.

Contact

Questions about this policy can be directed to SendlyOwl Communication Pvt Ltd through the contact details listed on the app's Play Store page.