Tracing vs Round Corner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tracing
Easily trace photos and images to create your own hand-drawn art. This tool is designed for beginners to practice drawing skills without needing professional art training. Import images, adjust their position and transparency, and use a simple two-layer system for a clean drawing process.
- Import and trace photos
- Move, rotate, and scale reference images
- Adjustable image opacity
- Two-layer system for drawing and coloring
- Beginner-focused drawing practice
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Trace is a simple drawing app that lets you import photos, images, and files as references, then trace and paint over them. One of Trace’s key features is its three-layer structure: the Reference Layer, Trace Layer, and Paint Layer. You can trace outlines while viewing your reference image, then add color on the Paint Layer to complete your artwork. By separating each step into its own layer, Trace makes the drawing process simple and easy to manage. The Reference Layer supports zooming, scaling, and rotation, giving you the freedom to adjust the size and angle of your reference image to match your composition. In addition to importing images from your photo library, Trace also supports importing image files, allowing you to use a wide variety of reference materials. Key Features * Reference Layer Display a photo or image as your drawing reference. Zoom, resize, and rotate it freely to match the size and angle you want. * Trace Layer Trace outlines and shapes while viewing the reference image underneath. * Paint Layer Add color while using your traced lines as a guide to complete your artwork. * Import from Photos Use images stored in your photo library as references. * Import from Files Import image files in addition to photos, giving you more flexibility when choosing reference materials. * Flexible Reference Adjustment Freely adjust the size and angle of your reference image to suit your composition and tracing needs. * Simple and Intuitive Controls Designed to keep unnecessary complexity to a minimum so you can focus on tracing, drawing, and painting. Trace can be used for drawing practice, illustration, sketching, design studies, and many other creative purposes. “Place your reference.” “Trace the lines.” “Add color.” By separating these three steps into layers, Trace provides a smooth and intuitive workflow from tracing to painting. Turn your favorite photos and images into your own artwork with Trace.
Round Corner
Easily round the sharp corners of your photos with this app. Choose between manual radius input or an intuitive slider for precise adjustments. Save and share your creations seamlessly.
- Round photo corners
- Manual radius input
- Interactive slider adjustment
- Save to Photos app
- Save to iCloud Drive
- Share via multiple apps
- PNG format output
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RoundCorner allows you to effortlessly transform the right-angle corners of your photos into smoothly rounded corners. The application offers two convenient methods for achieving this effect: first, by manually entering the desired radius if you have a specific measurement in mind; alternatively, by using an interactive slider to dynamically adjust the corner radius until you achieve the desired appearance. Once you've customized your photo, you can easily save it back to your Photos app, store it locally on your iPhone/iPad, or save it to your iCloud drive. Additionally, RoundCorner facilitates seamless sharing of the rounded corner photo through various apps such as AirDrop, Messages, Mail, Books, and more. Interactive Change ================== By manipulating the slider within the range of 0 to the maximum possible corner radius determined by the selected photo, you can dynamically and interactively fine-tune the corner radius, seamlessly adjusting it back and forth until you achieve the desired level of satisfaction. Precise Corner Radius ===================== If you have a precise value in mind, you can input the corner radius directly using the number keypad. As you enter the desired number, the photo's corners will dynamically adjust. Simply tap "Done" upon completion or tap the photo to hide the number keypad. Please note that the maximum allowable value is limited to four digits. Save & Share ============ Save the rounded corner photo back to your Photos library. Share the photo with other Apps Help about this App Links to other useful Apps Note ==== The saved or shared rounded corner photo is in PNG format rather than JPG. This choice is made because JPG does not support transparency, specifically the alpha channel.
Screenshots
Verdict
The clearest difference is review sentiment: Tracing at 100% against Round Corner's 0%. Tracing also leads on price ($0.99 vs $4.99). Round Corner's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.6). On ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Tracing costs $0.99 and Round Corner $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Tracing | Round Corner |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuo Fukushima | Ruizheng Liu |
Customer experience
Tracing
Round Corner
In-app purchases
Tracing
No in-app purchases
Round Corner
No in-app purchases









