OBS 4K vs HappyLens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBS 4K
Transform your iPhone into a professional 4K webcam for your Mac. Stream in high resolution with ultra-low latency and advanced controls. Ideal for video conferencing, live streaming, and content creation.
- 4K, 1080p, 720p streaming
- Ultra-low latency
- H.265 hardware encoding
- Multiple lens support
- Full zoom and exposure control
- Custom stream profiles
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Turn your iPhone into a professional 4K camera for your Mac. OBS 4K streams your iPhone camera in stunning 4K resolution over USB or WiFi, with ultra-low latency H.265 hardware encoding. KEY FEATURES: • 4K, 1080p, and 720p streaming over USB or WiFi • H.265 hardware encoding for crystal-clear quality at minimal bandwidth • Ultra-low latency — see your camera feed in real time • Multiple lens support — switch between Ultra Wide, Wide, and Telephoto • Screen curtain mode to save battery while streaming PRO FEATURES: • 60 fps smooth capture for professional-quality video • Full zoom and exposure control with real-time adjustments • Focus and exposure lock for consistent shots • Custom stream profiles for quick setup • Advanced ISO, white balance, and torch controls PERFECT FOR: • Video conferencing (Zoom, Google Meet, Microsoft Teams) • Live streaming (OBS Studio, Streamlabs) • Content creation and YouTube recording • FaceTime calls in stunning quality • Professional video production OBS 4K creates a virtual camera on your Mac, so any app that uses a webcam can use your iPhone’s powerful camera system. Connect via USB for the best quality, or go wireless with WiFi. Download now and transform your iPhone into the ultimate webcam. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ioscorner.com/privacy.html
HappyLens
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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: HappyLens at 100% against OBS 4K's 29%. HappyLens also leads on in-app purchases (none vs 3). OBS 4K's advantage is price (Free vs $1.99) and update cadence (weekly vs every 2 months). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
OBS 4K is free to download; HappyLens costs $1.99 up front. OBS 4K sells 3 in-app purchases, starting at $5.99 per month. HappyLens asks for nothing beyond the download.
OBS 4K ships an update weekly, HappyLens every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | OBS 4K | HappyLens |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.8 (23 ratings) — better | — |
| Positive reviews | 28.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, Mac | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Huseyin Bagana | 常坤 赵 |
Customer experience
OBS 4K
HappyLens
In-app purchases
OBS 4K
- OBS 4K Pro Monthly$5.991 Month
- OBS 4K Pro Yearly7 Days trial$79.991 Year
- OBS 4K Pro Lifetime$103.99
HappyLens
No in-app purchases









