HDR Easy vs Gain Map HDR Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HDR Easy
Transform SDR photos and videos into HDR for compatible displays. This app offers a simple workflow with one-tap conversion and optional tuning. It supports various input formats and outputs high-quality HDR content.
- SDR to HDR conversion
- One-tap HDR for photos and videos
- Optional contrast/saturation tuning
- Supports various input formats (JPEG, PNG, HEIC, RAW, MP4, MOV)
- Batch processing (Pro version)
- 10-bit HEIC and HDR video output
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NEW HDR Easy V3! Turn SDR photos and videos into HDR for HDR-capable displays on recent iPhones, iPads, and Apple Silicon Macs. This is not a legacy HDR exposure-blending filter. Files use current HDR formats so highlights can go brighter on supported screens. Note: HDR content will not display when your iPhone is in Low Power Mode, as HDR is disabled. Key Benefits • Works well with SDR AI images, DSLR photos, and film scans, especially high-contrast scenes. • Simple workflow: pick media (or drag and drop on iPad/Mac) and convert. • Share a photo or video from the Photos app to open it in HDR Easy. • A preview lets you adjust the look before you save. • Tune Peak Brightness, Saturation, and Contrast on photos and videos. • Videos include highlight masking, with HDR Range and Softness, so HDR can stay in the bright parts. • Full and Highlights looks for video. Trial can switch them. • Batch processing and a bitrate slider are available in Pro. • Includes a new pink color preset for the app. Device Requirements • HDR-capable display (for example iPhone 11 Pro or later, iPad Pro with XDR, Apple Silicon Mac with XDR). • iOS 18.1 or later. How It Works • Input: JPEG, PNG, HEIC, TIFF, PSD, RAW, MP4/MOV/M4V (H.264/HEVC) • Photos: 10-bit HEIC with HDR metadata, or JPEG Ultra HDR • Video: 10-bit HEVC, HLG HDR (BT.2020). Default target 100 Mbps. Pro can set 10 to 200 Mbps. • Standards: BT.2020 color, HLG for video Important • HDR appearance varies by device, display, OS, and viewing app. Specific results are not guaranteed. • Some apps show HDR thumbnails over-bright. On non-HDR screens the viewing app tone-maps the video, so it can look different from the source. • Video Peak Brightness above 2.00 can flatten or darken the picture on some screens and on Instagram. Feature Highlights by Version • Free Trial: Watermark. Convert one photo or video at a time. Switch Full and Highlights video looks. • Starter: No watermark. Unlimited single-file conversions. Highlight masking, Peak, Range, Softness, contrast, and saturation. Paste from clipboard. • Pro: Everything in Starter, plus bitrate control (10-200 Mbps), batch processing, drag and drop on macOS (designed for iPad), and mixed photos and videos.
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 — 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 — 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: HDR Easy at Free against Gain Map HDR Converter's $3.99. Gain Map HDR Converter's advantage is in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 5 weeks). On review sentiment, 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
HDR Easy is free to download; Gain Map HDR Converter costs $3.99 up front. HDR Easy sells 3 one-off in-app purchases. Gain Map HDR Converter asks for nothing beyond the download.
HDR Easy ships an update every 5 weeks, Gain Map HDR Converter every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | HDR Easy | Gain Map HDR Converter |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 5 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Kasimir Szekeres Photography B.V. | MARCELO PITZ ESPINDOLA |
Customer experience
HDR Easy
Gain Map HDR Converter
In-app purchases
HDR Easy
- Starter$3.99
- Pro Upgrade$12.99
- Pro$17.99
Gain Map HDR Converter
No in-app purchases









