Frequently Asked Questions

Tarkarn is a developer that creates mobile apps and free web tools. We develop Android applications across various categories and provide online utilities accessible through web browsers.

Yes, all our apps are free to download and use from Google Play Store. Some apps include advertisements to support continued development.

Our apps are available for Android devices. You can download them from the Google Play Store.

Visit the Google Play Store on your Android device and search for the app name, or click the Google Play link on our website.

Apps are updated through the Google Play Store. You can enable automatic updates or manually update from the app's Play Store page.

Some features may work offline, but many features require an internet connection for full functionality.

Yes, all web tools are completely free to use. No registration or login is required.

Yes, our web tools process data directly in your browser. Files are not uploaded to any server.

We operate four specialized web tool platforms: Web Tools (tools.tarkarn.com) for text and developer utilities, Calculators (calc.tarkarn.com) for math and everyday calculations, Image Tools (images.tarkarn.com) for image processing and conversion, and PDF Tools (pdf.tarkarn.com) for PDF editing and conversion.

No, you do not need to create an account or register in any way. Simply visit the web tool site and start using the tools immediately. There are no sign-up forms, email verifications, or login requirements.

Our Image Tools support popular formats including PNG, JPEG, WebP, GIF, BMP, SVG, and more. You can convert between formats, resize, compress, and edit images — all processed directly in your browser.

Since all processing happens in your browser, file size limits depend on your device's available memory. Most tools handle files up to several hundred megabytes without issues. For very large files, we recommend using a desktop browser for optimal performance.

Yes, all our web tools are fully responsive and work on mobile browsers including Chrome, Safari, Firefox, and Samsung Internet. The interfaces are optimized for both desktop and mobile screen sizes.

Our apps collect only minimal, anonymized usage data such as crash reports and basic analytics through Firebase to improve app quality and stability. We do not collect personally identifiable information like names, email addresses, or phone numbers.

We do not sell or share your personal data with third parties for marketing purposes. Anonymized analytics data may be processed by Firebase (Google) to provide crash reporting and usage insights. Advertising partners may collect device identifiers for ad delivery, which you can opt out of in your device settings.

All file processing in our web tools occurs entirely within your browser using client-side JavaScript. Your files are never uploaded to our servers or any third-party service. Once you close the browser tab, all processed data is removed from memory.

Our websites use essential cookies for basic functionality and analytics cookies through Google Analytics to understand usage patterns. Advertising services (Google AdSense) may also use cookies to deliver relevant ads. You can manage your cookie preferences through your browser settings or opt out of personalized ads at Google Ads Settings.

Our full privacy policy is available at tarkarn.com/terms/terms-apps. It details what data we collect, how it is used, and your rights regarding your personal information. You can also find links to the privacy policy in the footer of every page on our website.

Most of our apps support Android 7.0 (Nougat, API 24) and above, while some apps support even earlier versions. The specific minimum Android version for each app is listed on its Google Play Store page.

Each app only requests permissions that are essential for its core functionality. For example, CPT needs camera permission for text capture, Earthquake needs notification permission for alerts, and QRScan needs camera permission for barcode scanning. We never request unnecessary permissions.

Our apps are optimized to be lightweight. Most apps require less than 30MB of storage space. Apps that include offline content, such as sign language videos in Suhwa or metro data in TMETro, may require additional storage for downloaded data.

Currently, all our mobile apps are available exclusively for Android devices through Google Play Store. We do not have iOS versions at this time. However, all our web tools work on any device with a modern web browser, including iPhones and iPads.

If you experience crashes, please try these steps: 1) Make sure you have the latest version from Google Play Store. 2) Clear the app cache in your device settings. 3) Restart your device. If the problem persists, please email us at [email protected] with your device model and a description of the issue, and we will investigate promptly.

You can reach us at [email protected]. We welcome feedback, bug reports, and feature requests.

Send us an email at [email protected] with your suggestion. We consider all user feedback when planning updates.

We aim to respond to all inquiries within 1-2 business days. For urgent issues such as app crashes or security concerns, we prioritize faster response times. Please include detailed information about your issue to help us assist you more efficiently.

To report a bug, please send an email to [email protected] with the following information: the app name and version, your device model and Android version, a description of the issue, and steps to reproduce the problem. Screenshots are also helpful. We investigate all reported bugs and include fixes in upcoming updates.

Yes, we greatly appreciate user reviews! You can leave a review on the app's Google Play Store page. Your feedback helps us improve our apps and also helps other users discover them. If you have a specific issue, please also email us so we can address it directly.