RoundKit - Rounded Corners

Crop, Style & Export Images

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Precise corners are only the start. Apply curated templates or build reusable styles with crop, color, padding, borders, and shadows—all on device. Pro is one purchase. RoundKit is a focused, on-device image tool for rounded corners, cropping, reusable styles, and clean exports. Choose a photo, drag its four corners or start with a curated template, then create polished profile photos, product images, social posts, and app screenshots in seconds. Corners with real control • Drag four handles directly on the image • Choose Standard, Smooth, or Squircle curves • Fine-tune with a slider, exact values, and px or % units • Link all corners or adjust each one independently • Press and hold to compare with the original Templates that carry the whole look • Curated templates combine crop ratio, curve, radius, padding, background, border, and shadow • Recommendations adapt to practical English-language workflows such as app screenshots, Stories, profiles, and portfolios • RoundKit Pro lets you save your own named templates and reuse them on the next image • Personal templates store visual settings, never the source image Crop and professional styling • Popular aspect ratios, zoom, position, and 90° rotation • 12 curated, low-saturation background colors • Custom HSB and HEX colors with recent-color history • Transparent backgrounds, refined padding, shadows, and borders • A portrait-first workspace that also supports landscape, square, and original ratios Fast export • Export as PNG or JPEG • Save to Photos or Files, copy PNG, or share directly • Pro supports transparent PNG and full-resolution export • Keep one unfinished draft and clear it whenever you like Simple and private • No ads and no watermarks • No account and no image uploads • Every image is processed on your device • Available in English and Simplified Chinese with light and dark appearance RoundKit Pro is a one-time purchase with no subscription. Unlock Smooth, Squircle, independent corners, proportional radius, transparent PNG, full-resolution export, custom colors, the complete styling toolkit, and personal templates. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

The developer, 生 赵, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    生 赵
    Size
    2 MB
    Category
    Graphics & Design
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 RoundKit
  • Privacy Policy

    • More by 生 赵

    You Might Also Like