Readly – Camera Magnifier and Reading Aid for iOS

Readly is a camera magnifier template that turns any iPhone into a reading aid. Point the camera at a menu, a prescription bottle, a contract or an ingredient list, and read it comfortably with zoom, contrast boost and a built-in low-light flashlight. Freeze the frame and keep enhancing the still image, or go fullscreen for the biggest possible text.

Demo Instructions

No login and no demo credentials are required – the app is 100% offline and works right after build and run.
The app needs camera access. On the simulator a placeholder image is shown instead of the live camera feed.
The first launch shows a 3-step onboarding. Complete it once to reach the main screen.
AdMob is configured with Google TEST ad unit IDs, so banner ads display “Test mode” out of the box. The Remove Ads purchase uses StoreKit 2 – configure your own product in App Store Connect (see documentation).

Everything the App Does

Live camera magnifier with a full-screen preview
Zoom: 1x to 2x on the live camera, up to 5x on frozen frames, with both a slider and pinch-to-zoom that stay in sync
Contrast / brightness boost using hardware exposure control (ISO and shutter speed mapping)
Adjustable LED flashlight with a brightness slider for reading in the dark
Freeze frame: capture the current view and keep editing the still image (zoom and contrast)
Fullscreen mode: hide all controls for maximum reading area, with a floating Unfreeze button and a Minimize button
Contextual slider that adapts its range and icon to the selected feature
3-step illustrated onboarding with a scaling carousel
Settings screen with a 12-language in-app language switcher (English, German, Spanish, French, Italian, Japanese, Korean, Polish, Portuguese, Vietnamese, Chinese Simplified, Chinese Traditional)
Remove Ads In-App Purchase with a modern SwiftUI paywall: product selection, subscribe button, restore purchases, terms and privacy links, and a close-button cooldown
AdMob banner ads that are hidden automatically once the purchase is active
Rate-the-app prompt that appears after 5 sessions (SKStoreReviewController)
Tutorial replay from Settings, feedback email composer (Mail app plus Gmail, Outlook, Yahoo and Spark fallbacks)
Fully localized in 12 languages, including onboarding, settings and paywall strings
Custom Spartan font family, teal-on-dark-green theme, rounded pill-style buttons
Camera permission handling with a friendly alert and a shortcut to the system Settings app

Technology

Language: Swift 5, UIKit with Storyboards (plus one SwiftUI paywall screen bridged via UIHostingController)
Minimum deployment target: iOS 17.0
Camera pipeline: AVFoundation (AVCaptureSession, video data output, hardware exposure and zoom controls)
Monetization: Google Mobile Ads SDK (banner), StoreKit 2 In-App Purchase
Dependency management: Swift Package Manager (Google Mobile Ads SDK resolves automatically) – no CocoaPods required
Device family: iPhone, portrait
No third-party analytics, no tracking, no server, no account system

What the Buyer Gets

Full Xcode source code of the Readly app (Swift files, Storyboards, asset catalog, 12 Localizable.strings files, fonts)
Xcode workspace and project so the app builds out of the box
Step-by-step documentation.html with screenshots: project setup, renaming, bundle ID, icon, re-skinning, AdMob and IAP configuration, App Store submission checklist
All preview screenshots as JPEG files

Development Disclosure

Portions of this template’s source code were developed with AI-assisted tools. All code has been reviewed, tested and verified by the author.

A Note Before You Buy

This is a source code template, not a compiled app. You will need a Mac with Xcode and basic Xcode knowledge to build, customize and submit the app to the App Store. If you have any questions, feel free to reach out through the comments section.

Readly | Camera Magnifier and Reading Aid - UIKit