PhotoRelay vs QSDC
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
PhotoRelay
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PhotoRelay lets you browse, view, and share photos stored on your camera ā in a way that feels instantly familiar. Inspired by the simplicity of a native photo gallery, PhotoRelay focuses on what matters most: viewing your images clearly, sharing them quickly, and keeping them with you when you need them. KEY FEATURES ⢠Browse photos from your camera in a clean, gallery-style grid ⢠View full-resolution images with smooth zooming and panning ⢠Star your favorite shots for quick access later ⢠Share photos instantly using the system share sheet ⢠Keep opened photos available for offline viewing ⢠Optimized for both iPhone and iPad ⢠Photo Info Watermark: add shooting info and your signature to exported copies, in Overlay or Border style BUILT FOR PHOTOGRAPHERS PhotoRelay is designed for photographers who want a quiet, reliable way to browse and view their photos ā without unnecessary settings or distractions. Once connected, simply browse and enjoy your images. HOW IT WORKS 1. Turn on your camera and enable its built-in Wi-Fi. 2. Join the camera's Wi-Fi network from your device's Settings. 3. Open PhotoRelay ā your photos appear instantly. COMPATIBILITY ⢠Compatible with GR III, GR IIIx and GR IV cameras ⢠Works with cameras that share photos through a built-in Wi-Fi access point with a local HTTP photo interface ⢠Requires a camera connection to access photos USAGE & UNLOCKING ⢠Browse and preview photos freely ⢠Viewing, downloading, or sharing more than 5 original photos requires a one-time unlock of the full version ⢠Exporting with Photo Info Watermark is part of the one-time unlock; you can preview it for free PhotoRelay is an independent third-party app and is not affiliated with, endorsed by, or sponsored by any camera manufacturer. RICOH, GR, GR III, GR IIIx and GR IV are trademarks or registered trademarks of Ricoh Company, Ltd. or Ricoh Imaging Company, Ltd. They are used here only to indicate compatibility.
QSDC
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QSDC is a fast culling and viewer app for the photos on your SD card ā without importing them first. Plug in a card reader, review on the spot, and download only the shots you want to Photos. It never writes to the card ā fully non-destructive. WHO IT'S FOR Ā· Photographers who need to cull hundreds of shots quickly after a shoot Ā· Anyone who wants to check and select high-resolution RAW (RAF, etc.) in the field Ā· People who'd rather keep their camera roll clean and import only the keepers KEY FEATURES Ā· Import-free SD browsing ā open the card and view without importing Ā· Fast culling marks ā sort into Keeper / B-cut (maybe) / Reject, and filter by mark Ā· Photos-like browsing ā smooth zoom transition, swipe paging, swipe down to dismiss Ā· 100% zoom ā check focus and detail at native pixels Ā· Composition guides ā rule of thirds, golden ratio, golden triangle (long-press to switch) Ā· RAW dual-path ā fast embedded previews for browsing, full decode for precise checks Ā· Sort ā by capture date, newest or oldest first Ā· Download keepers only ā save just the photos you picked; already-downloaded shots are marked, and duplicates can be skipped Ā· Photo info ā lens, focal length (35mm equivalent), aperture, shutter, ISO and exposure compensation, plus camera, resolution and bit depth Ā· Per-card thumbnail cache ā set retention and a size cap, with low-space warnings Ā· Camera-roll grid ā adjustable columns, portrait and landscape Ā· Non-destructive (read-only) ā never deletes or alters photos on the card HIGHLIGHTS Ā· Light & dark themes, minimal UI that puts photos first (customizable detail background) Ā· iPhone and iPad, with smooth layout across rotation Ā· No ads, no sign-up, no network ā everything runs on device Start culling the photos on your card, fast and light, with QSDC.
Screenshots
Verdict
The clearest difference is in-app purchases: QSDC at none against PhotoRelay's 1. PhotoRelay's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. PhotoRelay sells 1 one-off in-app purchase. QSDC asks for nothing beyond the download.
PhotoRelay ships an update monthly, QSDC every 2 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.
| Parameter | PhotoRelay | QSDC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 2 weeks ā better |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad, Mac ā better | iPhone, iPad |
| Requires iOS | 18.0 ā better | 26.0 |
| Further details ā not scored | ||
| Size | 3 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | åæēÆ é | Seung Hyun Jin |
In-app purchases
PhotoRelay
- Unlock Original View$4.99
QSDC
No in-app purchases









