About the Developer
Muhammad Saif Ullah is an independent Android developer focused on creating mobile applications for users on the Google Play Store. Linksgroups Engine is the operating brand under which all applications are designed, developed, and published.
The business operates as a single‑owner studio, prioritising clean engineering, accessibility, and reliable release quality on every published app.
What We Do
Linksgroups Engine designs, develops, and publishes Android applications. Our work covers the full lifecycle of an app — from concept and interface design through implementation, testing, and Google Play Store publishing. All applications are distributed through the official Google Play Store under the developer profile shown below.
Our Apps
All applications listed below are designed, developed, and published by Muhammad Saif Ullah under the Linksgroups Engine brand. Each app is owned and operated directly by us — none are licensed, resold, or published on behalf of any third party.
Pause any app's internet — Manual, Timer & Schedule mode. No root required. Stay focused and in control of your screen time.
Send messages to any number instantly without saving contacts. Smart country code detection, call log integration, GDPR-compliant. 1K+ downloads.
Calculate your exact age in years, months, days and more. Birthday countdown, age comparison, and clean design. Highest-rated app in the portfolio.
Digital edition of the classic Islamic reference text Al Barakaat ul Makkiyyah, published under the Linksgroups Engine brand for easy access.
Live countdown widget to New Year 2027 with animated display. A clean, lightweight celebration app for Android.
Beautiful live countdown to Ramadan 2027 with prayer time awareness. One of the highest-rated apps in our portfolio, loved by the community.
Google Play Store
All applications published under the Linksgroups Engine brand are listed on our official Google Play Developer profile. This is the single authoritative source for verifying our published applications.
Business Information
The following details identify the business and its owner for verification purposes.
Contact
For business inquiries, app support, or verification requests, please use either of the official email addresses below. Both inboxes are monitored directly by the owner.