GR Lab vs AlphaLuma
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GR Lab
Enhance your Ricoh GR camera experience with this app. Create and manage custom presets, organize your photos in an aesthetic album, and extract images from social media. Connect and control your camera remotely, and track your shooting history.
- Custom preset library
- Aesthetic photo album with tags/notes
- AI-powered image extraction
- Wi-Fi/Bluetooth camera connection
- Remote camera control with live view
- Shooting log and history visualization
- Preset card sharing
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Designed for RICOH GR II, GR III, and GR IV GR IV Monochrome series cameras. From photography recipes and wireless photo transfers to remote shooting and daily photo journals, GR Lab brings everything together for a simpler, more creative photography experience. Make photography easier. Capture every inspiration. ■ Photography Recipe Library Collect your favorite colors and create your own recipes. - Create, edit, and manage photography recipes - Recognize settings from original photos - Record, adjust, and share recipe parameters - Organize your favorite photography styles ■ Inspiration Album More than recipes, your personal inspiration collection. - Save favorite photos without creating recipes - Add tags, notes, and custom gallery layouts - Build your own collection of visual inspiration ■ Smart Image Extraction Discover, extract, and save inspiring photos. - Extract images from social media links - Save high-quality photos to albums or projects - AI-powered photography recipe recognition ■ Camera Connection & Photo Transfer Connect your GR and enjoy seamless wireless transfers. Supported cameras: GR II, GR III, GR IIIx, GR III HDF, GR IIIx HDF, GR IV, GR IV HDF, GR IV Monochrome. - Wi-Fi and Bluetooth connectivity - High-quality previews and fast photo transfers - Up to 10 simultaneous downloads - Background transfer support - Firmware update checks - Sync date, time, and location - Improved connection speed and stability ■ Remote Camera Control Turn your phone into a camera remote. - Real-time live view and tap to focus - Remotely adjust camera settings - Use volume buttons to trigger the shutter - Manual and automatic preview rotation ■ Apply Recipes to Camera Apply your favorite settings without manual adjustments. - Apply saved recipes with one tap - Quickly sync recipe parameters - Supports GR II and GR IV,GR IV Monochrome series ■ Photo Check-in Capture your everyday photography journey. - Record photos, locations, moods, and notes - Edit and manage previous check-ins - Shooting maps and photography statistics - Multiple and custom camera support - iCloud sync for check-in records ■ Recipe Sharing Cards - Create beautiful recipe sharing cards - Choose from multiple card designs - Share photos and camera settings ■ Photography Tools - Recipe parameter recognition - Shutter count checker - Original photo verification - Serial number and manufacturing date lookup ■ Live Activities & Dynamic Island - Track photo download progress - View transfer status in Dynamic Island ■ iCloud Data Sync - Sync projects, check-ins, and camera devices - View sync status and sync manually ■ Personalization - Light and dark themes - Multiple project gallery layouts - Custom app icons - Smooth performance and no ads ■ Why Choose GR Lab? Built for GR photographers, GR Lab combines recipes, photo transfers, remote shooting, and daily photography records in one simple, intuitive app. ■ Thank You & Feedback GR Lab is continuously evolving. Thank you for your support! If you encounter any issues or have suggestions, please feel free to contact me. Your feedback helps make GR Lab better. Enjoying GR Lab? A five-star App Store rating would mean a lot! Your encouragement keeps me motivated to improve the app. Xiaohongshu (RED): 若水 Email: wdklog@gmail.com Privacy Policy: https://www.privacypolicies.com/live/7c5b1603-e0c0-4bc9-b1a0-0155da718feb Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This product is not affiliated with RICOH.
AlphaLuma
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AlphaLuma is a clean, no-fuss light meter for photographers who want reliable exposure guidance fast. AlphaLuma turns your iPhone into a focused light metering companion: a live camera preview, clear readouts, and tools that help you set aperture, shutter, ISO, and exposure intent—fast. What you get • Live metering readouts Estimated aperture, shutter speed, ISO, EV compensation (manual vs meter), and AWB with Kelvin so you can align with how you shoot. • Live histogram See how brightness is distributed across the frame. Zones for Shadows, Midtones, and Highlights help you spot clipping and balance at a glance. Toggle the histogram on or off from the camera screen. • Luminance waveform (scope-style) A professional-style waveform monitor overlay: horizontal position follows the scene left-to-right; vertical position is brightness (shadows at the bottom, highlights at the top). It shows luminance density per column, not a single line per column, so you can see where in the frame brightness lives. S / M / H labels mark shadow, midtone, and highlight regions; a Safe exposure hint pairs with the green guide line as a quick reference band for key brightness placement (you still judge the final look). • Camera & workflow controls Camera toggle to switch cameras where supported. Lock exposure freezes readouts (including histogram and waveform snapshots) so you can note settings or share them with others on set. Large type (Aa) bumps readout size for bright sun or quick glances. • Designed for real shooting Minimal UI, high contrast overlays, and tools laid out for one-handed use: metering at the top, optional waveform above the histogram, and controls along the bottom. How to use it Point the phone at the scene. Read the meter and guides. Transfer settings to your camera. Lock when you want a stable reference while you work. Pricing • 7-day free trial on device • One-time unlock for full access (non-consumable; no subscription) AlphaLuma is built for photographers who want a simple, dependable meter with histogram and waveform insight when they need it without clutter.
Screenshots
Verdict
The clearest difference is iOS requirement: GR Lab at 17.0 against AlphaLuma's 26.4. On price, ads, in-app purchases and device support 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
Both are free to download. GR Lab sells 6 in-app purchases, starting at $1.99 per 7 days and AlphaLuma sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | GR Lab | AlphaLuma |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (24 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 43 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | 定康 王 | Obipixel Ltd |
In-app purchases
GR Lab
- GR Lab-7-day member$1.997 Days
- GR Lab-Monthly Membership3 Days trial$2.991 Month
- GR Lab - Pro Annual Member3 Days trial$9.991 Year
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- GR Lab-年度会员$14.991 Year
- GR Lab-Pro Lifetime$9.99
- GR Lab-LIfetime Pro$24.99
AlphaLuma
- AlphaLuma$3.99









