Biyoree vs Gain Map HDR Converter
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Biyoree
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Biyoree is a camera and photo editor for enjoying carefully crafted film color and texture. Preview your final look in real time before you shoot, then capture photos and videos with the atmosphere of the moment intact. You can also import photos from your library and edit them afterward. โ Dozens of Original Film Looks Choose from dozens of color and black-and-white film looks. Find a tone that fits the light, skin, scenery, shadows, and feeling of each photo. โ Films Crafted One by One Each film is designed beyond color alone, with its own contrast, grain, texture, highlights, and shadows. Instead of getting lost in small adjustments, choose the film that fits the moment and let the look come together. โ Real-Time Film Camera Shoot photos and videos while previewing the selected film look. Register up to five favorite looks and switch between them quickly. โ Expressive Blur Adjust blur strength and create a more dimensional finish while keeping people clear. โ Frames That Complete the Photo Choose from slim, classic, Polaroid-style, gallery, and other layouts. Customize margins, color, aspect ratio, and photo placement. โ Titles and EXIF Layouts Beautifully place titles, subtitles, film names, dates, camera, lens, and shooting settings on your photos. โ Flexible Ratios and Cropping Supports 1:1, 4:5, 16:9, 9:16, and more. Drag, pinch, and rotate to adjust photo placement intuitively. โ Before / After Comparison Compare the original and edited photo with a slider while choosing the film color and texture that fit best. Everyday moments, travel memories, and time with people you care about. Turn them into photos worth remembering with Biyoree.
Gain Map HDR Converter
Enhance your photos by rebuilding their brightness range to create true HDR images. This app preserves metadata and offers batch processing, making your highlights glow on compatible devices while looking great everywhere else.
- Create true HDR gain maps
- Preserves metadata
- Batch processing
- 10-bit HEIF output
- Supports Display P3 color
- Private by design
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Your display can show far more light than your photos ever use. Gain Map HDR puts it to work. Every photo on your iPhone was captured with a range of brightness that standard displays simply clip away. Gain Map HDR rebuilds that range and writes it as a true HDR gain map, so highlights glow on your iPhone, iPad and Mac โ while the image still looks right everywhere else. HOW IT WORKS - Import from your photo library or from Files - Choose HDR or GLOW and dial in the exact intensity - Compare against the original at any time - Save back to Photos or export to a folder BUILT ON STANDARDS - True ISO 21496-1 gain map โ the open HDR standard, not a filter - 10-bit HEIF output for smooth gradients with no banding - Display P3 wide-gamut color - Graceful fallback: on non-HDR screens your photo looks exactly as it should MADE FOR PHOTOGRAPHERS - Author, copyright, IPTC and GPS metadata preserved - Batch processing for entire shoots - 4:5 crop, ready for social - Full-width editing in landscape, with every control in reach PRIVATE BY DESIGN Everything happens on your iPhone. No cloud processing, no account, no uploads. Your photos never leave your device. Gain Map HDR doesn't invent detail or push saturation. It rebuilds the brightness range your camera already captured, and writes it in the format Apple devices are built to read.
Screenshots
Verdict
The clearest difference is price: Biyoree at Free against Gain Map HDR Converter's $3.99. Biyoree also leads on update cadence (every 4 days vs every 2 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Biyoree is free to download; Gain Map HDR Converter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Biyoree ships an update every 4 days, Gain Map HDR Converter every 2 weeks. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Biyoree | Gain Map HDR Converter |
|---|---|---|
| Price | Free โ better | $3.99 |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Every 4 days โ better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.2 โ better | 18.6 |
| Further details โ not scored | ||
| Size | 26 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuma Yamamoto | MARCELO PITZ ESPINDOLA |
In-app purchases
Biyoree
No in-app purchases
Gain Map HDR Converter
No in-app purchases
Questions
Is Biyoree free?
Is Gain Map HDR Converter free?
Do Biyoree or Gain Map HDR Converter have ads?
Which is updated more often, Biyoree or Gain Map HDR Converter?
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