若多张图片同步纠正 自动纠正 并额外可手动纠正
可用。还需完善。
$1.99
About
This app helps you straighten and clean up photos of artwork, documents, and notes. It automatically detects edges, corrects perspective, and preserves original textures and colors. Processed images are saved locally without uploading to the cloud.
✓Automatic edge detection
✓Manual corner adjustment
✓Perspective correction
✓Artwork texture preservation
✓Ink Wash mode
✓Document mode
✓Brightness and contrast fine-tuning
Show original description
What's New in HappyLens
1.1.0
October 8, 2026
Rotate photos in 90-degree steps to adjust artwork orientation Pinch to zoom and pan previews, keeping your viewing position while adjusting and comparing Adjust paper texture and ink depth in Ink Wash mode, with improved paper lighting correction Fixed preview aspect ratios for certain photos and frame magnifier cropping for small images; improved processing consistency between previews and exports
MoreUser reviews
Developer apps
FAQ
What is HappyLens used for?
HappyLens is a photo editing tool designed to straighten tilted photos of artwork, documents, homework, and notes. It helps clean up messy backgrounds and preserve the original texture and colors of the subject.
Does HappyLens require an account?
No, HappyLens does not require an account to use. All image processing is done locally on your device, meaning your photos are not uploaded to any servers.
How much does HappyLens cost?
HappyLens is a paid application priced at $0.99. There are no in-app purchases or subscriptions required after the initial purchase.
What devices is HappyLens available on?
HappyLens is available for iPhone and iPad devices. It is designed for users who need a simple, focused tool for photo cleanup on their Apple mobile devices.
Can HappyLens automatically detect document edges?
Yes, HappyLens can automatically detect the edges of artwork or document photos. If the automatic detection isn't perfect, you can manually adjust the four corners to fine-tune the frame.
Does HappyLens preserve paper texture?
Yes, HappyLens has an 'Artwork mode' specifically designed to preserve paper texture, color, and details like brush or pencil marks. It aims to maintain the original feel of the artwork or document.
How often is HappyLens updated?
The latest version of HappyLens is 1.0.1, which was last updated on August 24, 2026. This indicates a recent update, suggesting ongoing support and potential for future improvements.
Is HappyLens suitable for children?
HappyLens has an age rating of 4+, making it suitable for younger users. Its simple interface and focus on straightening and cleaning photos of artwork and homework align well with educational and creative uses for children.
