# Round Corner — Round Corner Photos Easily

> App to round photo corners with manual input or slider adjustment. (iPhone/iPad app by Ruizheng Liu.)

- Source: https://appshunter.io/ios/app/round-corner/id6473549940 (this page in markdown: same URL + `.md`)
- Developer: [Ruizheng Liu](https://appshunter.io/developer/782255647)
- Category: Graphics & Design, Photo & Video
- Price: $4.99
- Age rating: 4+
- Requires: iOS 16.0 · 1 MB
- Languages: American English
- Released: 2023-12-06
- Data updated: 2026-09-11
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/round-corner/id6473549940/reviews.md

## What is Round Corner?

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.

## Key features

- Round photo corners
- Manual radius input
- Interactive slider adjustment
- Save to Photos app
- Save to iCloud Drive
- Share via multiple apps
- PNG format output

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/round-corner/id6473549940/reviews.md

### 1/5 — Not Recommended at All

*2024-01-10*

The app does what it claims to do, but it has a fundamental flaw that makes it totally unsatisfactory: after the corners on an image are rounded, the resulting saved image is of much lower quality than the original. For example, a 70 kb image was reduced to 5 kb. This flaw makes the program absolutely unuseable in my opinion.

**Developer response:** Images have different formats when saved and the size may different, so the reduced size does not mean low quality!

## Frequently asked questions about Round Corner

### How do I round corners in Round Corner?

Round Corner offers two methods: manually enter a specific radius value or use an interactive slider to adjust the corner radius dynamically until you achieve the desired look.

### What devices does Round Corner support?

Round Corner is available on Mac, iPhone, and iPad, allowing you to edit photos across your Apple ecosystem.

### Can I save my edited photos directly to my device?

Yes, you can save your rounded corner photos directly to your iPhone/iPad's local storage or to your iCloud Drive.

### What file format does Round Corner save photos in?

The app saves rounded corner photos in PNG format. This is because PNG supports transparency (alpha channel), which JPG does not.

### What is the price of Round Corner?

Round Corner is a paid application, available for a one-time purchase of $4.99.

### How often is Round Corner updated?

Round Corner was last updated on December 7, 2023, with version 1.0. Further updates will depend on developer plans.

### Is Round Corner suitable for children?

Round Corner has an age rating of 4+, making it appropriate for younger users to experiment with photo editing under supervision.

### Can I share my rounded photos to other apps?

Absolutely. Round Corner allows seamless sharing of your edited photos through various apps like AirDrop, Messages, Mail, and more.

## Version history (last 1 release)

### 1.0 — 2023-12-07

No release notes.

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## More apps by Ruizheng Liu

- [Countdown One](https://appshunter.io/ios/app/countdown-one/id1614348003)
- [PDF Pages](https://appshunter.io/ios/app/pdf-pages/id1620995820)
- [PuTXT](https://appshunter.io/ios/app/putxt/id6443927238)
- [Photo Parts](https://appshunter.io/ios/app/photo-parts/id6444296810)
- [Video Timer Counter](https://appshunter.io/ios/app/video-timer-counter/id6444837221)
- [Photo-PDF](https://appshunter.io/ios/app/photo-pdf/id6445961615)

All apps by Ruizheng Liu: https://appshunter.io/developer/782255647

## Related topics

[ruizheng liu](https://appshunter.io/ios/topics/ruizheng-liu)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-11.*