HDR Easy vs HDR Transformer
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.
HDR Transformer
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HDR Converter is a derivative product of the Prismatik app, designed to create a professional, easy-to-use, clean, and aesthetically pleasing HDR simulation and conversion tool. HDR Converter provides professional-grade HDR processing tools—from the brilliant transformation of SDR to HDR, to seamless conversion between multiple HDR formats—all completed offline on your device with 100% privacy protection. It is also optimized for Xiaohongshu (RedNote), making your posts stand out. Core Features --- HDR Simulation — Breathe New Life into Every Image Whether it's digital photography, classic artwork, or AI-generated content, HDR Simulation infuses images with realistic brightness and tonal depth. Built on Apple's official HDR Gain Map pipeline with targeted optimizations, it ensures every exported HDR photo has accurate luminance mapping and full metadata support. Smart Algorithm, One-Tap Simulation: Default parameters are automatically calculated based on in-depth image analysis, preserving natural light relationships while enhancing depth, luster, and spatial presence. Professional Manual Controls: Three core parameters—Highlight Boost, Highlight Range, and Peak Headroom—are provided, adhering to professional photography standards to reshape light with precision, not brute-force brightening. Platform-Specific Optimization: Tailored for Xiaohongshu (RedNote) and Instagram, ensuring your HDR work retains its stunning visual impact after upload. Efficient Batch Processing: Supports multi-task queue management, allowing you to add photos at any time and export individually or in batches. --- HDR Conversion — Break Down Format Barriers Say goodbye to HDR format incompatibility. HDR Converter fully supports bidirectional conversion across all major HDR standards. Supported formats include: Apple HDR (HEIF / JPEG): Perfectly compatible with the Apple ecosystem. Apple HDR (Compatible/HEIF): Optimized specifically for platforms like Xiaohongshu (RedNote), solving the issue of HDR loss after upload. ISO Gain Map (HEIF): A universal mapping standard compliant with international specifications. ISO HDR (PQ / HLG): Covers both broadcast-grade and consumer HDR standards—for example, .hif (HLG) files from Nikon Z cameras can be converted to Apple HDR (Compatible/HEIF) and shared directly to Xiaohongshu. All conversion processes preserve original metadata and support both Display P3 and sRGB color gamuts, meeting every need from professional review to social sharing. --- Privacy & Security We adhere to a strict "data localization" policy. All image processing is completed offline on your device—no uploads of any kind, no tracking components. Your work stays yours.
Screenshots
Verdict
The clearest difference is price: HDR Easy at Free against HDR Transformer's $9.99. HDR Transformer's advantage is in-app purchases (none vs 3) and update cadence (every 9 days vs every 5 weeks). 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
HDR Easy is free to download; HDR Transformer costs $9.99 up front. HDR Easy sells 3 one-off in-app purchases. HDR Transformer asks for nothing beyond the download.
HDR Easy ships an update every 5 weeks, HDR Transformer every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | HDR Easy | HDR Transformer |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Kasimir Szekeres Photography B.V. | 栋 张 |
In-app purchases
HDR Easy
- Starter$3.99
- Pro Upgrade$12.99
- Pro$17.99
HDR Transformer
No in-app purchases








