Calculate Percentage PRO — Free iPhone App Today

Giveaway of the Day lists OBD Car Wizard (normally $3.99) as free to download on October 21, 2026. The app displays vehicle diagnostics and customizable live gauges; using its OBD features requires a compatible Bluetooth LE or Wi-Fi OBD-II adapter (sold separately). How to claim: Follow the giveaway's Download Now link to the App Store while the promotion is live, and confirm the App Store displays $0 before claiming.

Claim the $5 Windows truck-driving game free through Game Giveaway of the Day on October 21, 2026. Play parking, delivery, drifting and checkpoint challenges and customize your truck. How to claim: Use the giveaway's Download Now link and download, install and register during the limited-time promotion. The developer's ordinary itch.io listing still charges $5; use the giveaway link.

Giveaway of the Day lists Vovsoft Desktop Diary 3.3 (normally $19) as free on October 21, 2026. This offline Windows diary lets you keep dated entries and protect your journal with an account password. How to claim: Open the Giveaway of the Day offer and follow its download and activation instructions during the limited-time promotion. The giveaway page was temporarily inaccessible during verification; confirm activation terms before installing.

Math Middle & High School PRO (normally $19.99) is listed free on October 21, 2026. The ad-free iPhone/iPad app offers step-by-step help for algebra, fractions, geometry, trigonometry and statistics. How to claim: Use the giveaway's Download Now link to the App Store and check that the price is $0 before downloading.

Minka Light Squircle, an Android squircle-style icon pack, is listed free today on Android Giveaway of the Day, reduced from $1.99. Follow the giveaway link to claim while available. Requires a compatible Android launcher to apply icons.

Sun Flower's green-and-yellow Android icon pack (3,000+ icons, wallpapers) is listed free today, down from $1.49, on Android Giveaway of the Day. Open the giveaway and follow its download link while the promotion is active. A compatible Android launcher is needed to apply the icons.