GR Mint vs Lumev
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GR Mint
This app helps photographers automatically tag their photos with precise location data from compatible cameras. It offers multiple sync options and simplifies exporting, keeping your photo library organized and private.
- Automatic location tagging
- Street photography organization
- Travel journey mapping
- Dynamic, shutter, and scheduled sync
- Private photo export
- JPG + RAW file management
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Your photos capture not only the moment, but also where it happened. GPS coordinates are automatically embedded in every photo, making it easy to revisit both the images and the journey behind them years later. Turn on the camera and you're connected. No need to take your phone out or relaunch the app. Location data updates as you move, or when you press the shutter. Exporting is just as simple: swipe to select multiple photos and save them to your photo library with a tap. JPG and RAW files are grouped together automatically, keeping your library organized. The 'Add Only' permission ensures the app only writes to your library without reading your existing photos. Compatible cameras GR IV series · GR III series *This app is NOT associated with the Ricoh Corporation*
Lumev
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Lumev is a focused smart light meter for film photography. It turns the iPhone camera into a clear path from reading a scene to setting the shutter speed and aperture on a real camera. It is approachable for a first roll of film and precise enough for an experienced photographer. MEASURE WHAT MATTERS Begin with a full-scene reading. When the light is complex, open the live spot view, use digital zoom, and measure a face, subject, shadow, highlight, or any other important area. Every spot keeps its own reference image. Adjust the intended brightness for each reading, make one point primary, or give several points different weights. Lumev then shows the range of the scene instead of hiding it inside a single unexplained average. EXPOSURE PAIRS YOUR GEAR CAN ACTUALLY USE Create reusable kits with your camera, lens, film, working EI, and optional filter. Lumev respects the shutter speeds available on the camera, the aperture range and step of the lens, the selected focal length, and the light loss of a filter. It presents several useful shutter-and-aperture combinations at once, including a balanced choice, more depth of field, and a faster shutter. A clearly labeled chart and full table are there whenever you want to inspect every option. UNDERSTAND EVERY RECOMMENDATION Raw EV, your creative intent, filter compensation, and learned correction remain separate and visible. The “Why this exposure?” view explains how the final value was formed, so beginners can learn and experienced photographers can stay in control. LEARN FROM THE DEVELOPED RESULT Save each metering session with its scene image, individual spot frames, recommendation, and the settings actually used on the camera. After development, compare the result with the saved reference and rate the exposure. Lumev learns conservatively from repeated, consistent feedback for your equipment and preferences. One unusual frame will not suddenly change the model, and past readings are never rewritten. BUILT FOR A QUIET SHOOTING WORKFLOW • Fast live camera preview, with a monochrome view for black-and-white film • Full-scene, center-weighted, and spot metering controls • Profiles for cameras, prime and zoom lenses, films, and filters • Searchable history with reference frames and actual exposure settings • Handheld warnings and recommendations based on the selected focal length • Works offline; history and learning data stay on your device • No ads or promotional interruptions Lumev keeps the interface focused on the photograph: measure the light, understand the choices, set the camera, and keep shooting.
Screenshots
Verdict
The clearest difference is in-app purchases: Lumev at none against GR Mint's 1. Lumev also leads on iOS requirement (17.0 vs 26.0). On price, ads 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 Mint sells 1 one-off in-app purchase. Lumev asks for nothing beyond the download.
| Parameter | GR Mint | Lumev |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 海芸 曾 | ILTERRA |
In-app purchases
GR Mint
- Standard License$7.99
Lumev
No in-app purchases









