HappyLens Downloads & RevenueHappyLens · App Store
Happy Lens
HappyLens is #90 in Photo & Video Paid in China and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
Developer常坤 赵
CategoryPhoto & Video
Price9.90 CNY
Released
Rating★ 5.0 (1)
Version1.1.0
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026💰Price rise📦Updated to version 1.1.0🆕First spotted by AppInsider📦Version 1.0.1🆕Released on the App Store
Full timeline · 6 events
- 💰HappyLens: price rise1.00 CNY → 9.90 CNY · CN
- ✏️HappyLens: app got bigger3 MB → 4 MB (+20%)
- 📦HappyLens updated to version 1.1.0Rotate 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… more - 🆕HappyLens first spotted by AppInsider#67 in Top Paid · Photo & Video · China
- 📦HappyLens version 1.0.1Improved automatic cropping for unusual aspect ratios
Enhanced image processing to better preserve brushwork and paper texture
Faster previews and smoother editing
Bug fixes and stability improvements - 🆕HappyLens released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
Best rank now
#90
Photo & Video PaidMeasured
HappyLens on the App Store
App details
App ID
6762107901
Publisher
常坤 赵
On the store since
Jun 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN ZH
Size
4 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | Photo & VideoPaid | #90 |
Apps near HappyLens on the chart
Photo & Video Paid, around #90.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Photo & Video apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About HappyLens
Straighten artwork, homework, notes, and document photos. Clean the background, preserve paper texture, and save a new photo. All processing stays on your device.
Description
Happy Lens is a lightweight local photo cleanup tool for artwork, homework, handwritten pages, notes, and document photos.
When you take a quick photo of a paper sheet or artwork, the image is often tilted, uneven, shadowed, or surrounded by a messy background. Some scanner apps also process images too heavily, losing color, paper texture, and real brush or pencil details. Happy Lens focuses on one photo at a time, making the cleanup flow simple and fast.
Choose a photo from your library, and Happy Lens will detect the main paper or artwork area, crop the edges, and correct perspective so the result looks more straight and natural. If automatic detection is not perfect, you can manually drag the four corners to adjust the frame.
Key features:
Detect artwork or document edges automatically
Adjust the four-corner frame by hand
Correct perspective for tilted photos
Artwork mode to preserve texture, color, and brush details
Ink Wash mode for soft ink tones and paper highlights
Document mode for cleaner pages and clearer lines
Fine-tune brightness, contrast, and background cleanup
Press and hold to compare with the original photo
Export results as new photos without replacing the original
Happy Lens does not require an account and does not rely on cloud processing. Your image processing stays on your device, and your photos are not uploaded to a server.
Great for:
Children’s drawings, crafts, homework, and practice sheets
Classroom handouts, paper notices, handwritten notes, and sketches
Artwork, ink wash, calligraphy, and document photos taken at an angle
Turning a quick photo into a cleaner image for saving or sharing
Happy Lens is not a complex scanning, OCR, or file management app. It is a quiet, focused tool for straightening one photo, cleaning the background, preserving the original feel, and saving the result back to Photos.
Description
Happy Lens is a lightweight local photo cleanup tool for artwork, homework, handwritten pages, notes, and document photos.
When you take a quick photo of a paper sheet or artwork, the image is often tilted, uneven, shadowed, or surrounded by a messy background. Some scanner apps also process images too heavily, losing color, paper texture, and real brush or pencil details. Happy Lens focuses on one photo at a time, making the cleanup flow simple and fast.
Choose a photo from your library, and Happy Lens will detect the main paper or artwork area, crop the edges, and correct perspective so the result looks more straight and natural. If automatic detection is not perfect, you can manually drag the four corners to adjust the frame.
Key features:
Detect artwork or document edges automatically
Adjust the four-corner frame by hand
Correct perspective for tilted photos
Artwork mode to preserve texture, color, and brush details
Ink Wash mode for soft ink tones and paper highlights
Document mode for cleaner pages and clearer lines
Fine-tune brightness, contrast, and background cleanup
Press and hold to compare with the original photo
Export results as new photos without replacing the original
Happy Lens does not require an account and does not rely on cloud processing. Your image processing stays on your device, and your photos are not uploaded to a server.
Great for:
Children’s drawings, crafts, homework, and practice sheets
Classroom handouts, paper notices, handwritten notes, and sketches
Artwork, ink wash, calligraphy, and document photos taken at an angle
Turning a quick photo into a cleaner image for saving or sharing
Happy Lens is not a complex scanning, OCR, or file management app. It is a quiet, focused tool for straightening one photo, cleaning the background, preserving the original feel, and saving the result back to Photos.
Latest updates
1.1.0
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
1.0.1
Improved automatic cropping for unusual aspect ratios
Enhanced image processing to better preserve brushwork and paper texture
Faster previews and smoother editing
Bug fixes and stability improvements
Store changes
What HappyLens changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Price rise
1.00 CNY → 9.90 CNY
App got bigger
3 MB → 4 MB (+20%)