# Corner Radius: Live Preview — Squircle Maker, SwiftUI Code

> Squircle Maker, SwiftUI Code (iPhone/iPad app by Phuc Pham.)

- Source: https://appshunter.io/ios/app/corner-radius-live-preview/id6772274031 (this page in markdown: same URL + `.md`)
- Developer: [Phuc Pham](https://appshunter.io/developer/1893081423)
- Category: Graphics & Design
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-05-28
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/corner-radius-live-preview/id6772274031/reviews.md

## What is Corner Radius?

Pick the exact corner radius for a button, card, sheet, or app icon — and see it live, at real size, before you write a single line of code.

Most radius decisions happen blind: you type a number, rebuild, squint, and type another. RadiusPreview turns that loop into one slider. Drag it and a real, scalable shape reshapes instantly on screen — 0 to 160 pt, uniform or corner-by-corner. Flip between Apple's continuous squircle and a true circular arc and watch the difference the way your eyes actually read it. When the shape looks right, the exact CSS, SwiftUI, or SVG is already written for you, ready to copy.

WHAT YOU GET
- One slider that reshapes a real UI surface in real time — no rebuild, no guessing
- Copy-ready CSS, SwiftUI, and SVG code for the exact shape on screen
- Independent control of all four corners for sheets, chat bubbles, and tabs
- A continuous-vs-circular comparison that finally explains why one looks softer
- 12 ready-made presets — card, button, pill, sheet, squircle, app icon mask and more
- A saved library of your shapes, so a decided radius never gets re-litigated

PERFECT FOR
- iOS developers matching SwiftUI surfaces to the system look
- Web and front-end developers writing border-radius by hand
- Product and UI designers defining a radius scale for a design system
- Anyone who has ever argued about whether 12 or 16 looks better

WHY NOT JUST EYEBALL IT IN THE INSPECTOR?
Because a radius of 44 pt on a 260 pt card is not the same radius on a 56 pt button, and a continuous curve at 24 does not match a circular curve at 24. Seeing both at true size, side by side, takes seconds — reworking a component after it ships takes a day.

LEARN
A built-in Learn section explains the nested-radius rule, how to build a radius scale, the half-height pill trick, per-corner syntax in CSS and SwiftUI, and when sharp beats soft.

PRIVACY
Everything runs on your device. No account, no sign-in, no ads, no tracking. It works fully offline.

FULL ACCESS
Premium unlocks per-corner radius control, SwiftUI and SVG code export, the side-by-side continuous vs circular comparison, and all premium presets. Available as a weekly subscription, a yearly subscription, or a one-time lifetime purchase. CSS export, uniform radius, free presets, the radius scale reference, saved shapes, and the Learn section are included without a subscription.

Open the app, drag the slider until the corner looks right, and paste the code into your project.

Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? https://web-levi.web.app/#contact

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $29.99 | one-time |



## Version history (last 4 releases)

### 1.2.1 — 2026-08-19

Bug fixes and performance improvements.

### 1.2.0 — 2026-07-20

Introducing Premium with new features. Plus bug fixes and improvements.

### 1.1.0 — 2026-06-09

Introducing RadiusPreview Premium with new features. Plus bug fixes and improvements.

### 1.0 — 2026-05-28

No release notes.

## More apps by Phuc Pham

- [Spy Cam Detector: Bug Radar](https://appshunter.io/ios/app/spy-cam-detector-bug-radar/id6763095044)
- [Audio Bible: KJV Scripture](https://appshunter.io/ios/app/audio-bible-kjv-scripture/id6763095570)
- [Feng Shui Compass & Horoscope](https://appshunter.io/ios/app/feng-shui-compass-and-horoscope/id6763224597)
- [Year Progress: Days & Percent](https://appshunter.io/ios/app/year-progress-days-and-percent/id6767788732)
- [AI Email Writer: Smart Reply](https://appshunter.io/ios/app/ai-email-writer-smart-reply/id6767789113)
- [Alarm Clock: Wake Up Missions](https://appshunter.io/ios/app/alarm-clock-wake-up-missions/id6767789239)

All apps by Phuc Pham: https://appshunter.io/developer/1893081423

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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 2026-08-24.*