Lghtmtr vs FrameAtlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lghtmtr
This app provides a minimalist light meter to help users determine ideal exposure settings for photography. It visually demonstrates the relationship between ISO, aperture, and shutter speed, making it intuitive for learning photographers.
- Minimalist light meter
- Intuitive exposure settings
- Visual feedback
- Adjustable ISO, aperture, shutter speed
- Camera profile customization
- Scene reference with readings
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Lghtmtr is a beautifully simple light meter that helps you find — and understand — the ideal exposure settings for a scene. Built for film photographers and anyone learning the craft, it makes the relationship between ISO, aperture, and shutter speed feel intuitive and the visual feedback helps reinforce the connection between them. Take a reading, get your settings, and start exploring. Adjust one value and the others respond instantly. Lock settings to experiment and see how each change affects your exposure. You can easily add camera profiles to the app to limit the possible values to what's most relevant to your camera and lens combination. With a visual reference of the scene behind every reading, Lghtmtr helps you shoot with clarity and confidence.
FrameAtlas
This app logs crucial data like GPS, time, lens, and ISO for each photo taken with a film camera. It helps you add metadata to your scanned images, making digital archiving easier and more informative. Log directly from your wrist using an Apple Watch.
- GPS and timestamp logging
- Lens, ISO, and exposure tracking
- Per-frame notes
- Shot Map visualization
- Film Bag archive
- Barcode scanner
- Gear Memory
- Apple Watch logging
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Analog soul. Digital precision. FrameAtlas is the missing link between your film camera and your digital archive. Film has no metadata. When your scans come back, every frame is a mystery, where it was shot, when it was taken, what worked. FrameAtlas logs GPS, time, lens, ISO, and more at the exact moment you press the shutter so you finally know. WHY FRAMEATLAS Film photography is about being present. FrameAtlas captures the data in the background so you don’t have to. APPLE WATCH: LOG FROM THE WRIST Leave your phone in your bag. Log frames instantly from your wrist with independent GPS capture. Everything syncs back to your iPhone automatically. THE WORKFLOW: SCAN → EXIF Shoot — log frames on iPhone or Watch Scan — get your rolls developed Export — generate a CSV from FrameAtlas Tag — write metadata into your scans using ExifTool Open in Lightroom or Adobe Bridge — location and time appear automatically. KEY FEATURES • GPS + timestamp logging for every frame • Lens, ISO, and exposure tracking (with per-shot overrides) • Per-frame notes • Shot Map — visualize an entire roll geographically • Film Bag — archive and revisit past rolls • Barcode scanner for quick roll setup • Gear Memory for cameras, film stocks, and lenses • Apple Watch sync for fast field logging FREE TIER • One active roll • Full GPS logging • Apple Watch support • Barcode scanner + notes PRO — $2.99 ONE-TIME PURCHASE • Unlimited rolls • CSV export for metadata embedding • Shot Map • Film Bag archive No subscriptions. No accounts. Yours forever. Built by a film photographer who got tired of guessing.
Screenshots
Verdict
The clearest difference is rating: FrameAtlas at 5.0 against Lghtmtr's 4.6. FrameAtlas also leads on update cadence (every 2 weeks vs every 3 months) and review sentiment (100% vs 80%). Lghtmtr's advantage is monetization model (free vs free with in-app purchases) and ratings volume (158 vs 2). On price, ads, in-app purchases 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
Both are free to download. Lghtmtr sells 1 one-off in-app purchase and FrameAtlas sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
FrameAtlas holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Lghtmtr has 158 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Lghtmtr's written reviews are positive against 100% of FrameAtlas's.
Lghtmtr ships an update every 3 months, FrameAtlas every 2 weeks. The most recent releases landed on October 29, 2026 and October 12, 2026 respectively.
| Parameter | Lghtmtr | FrameAtlas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (158 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 158 — better | 2 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 49 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Jacque | Eric Edwards |
Customer experience
Lghtmtr
FrameAtlas
In-app purchases
Lghtmtr
- Coffee tip$4.99
FrameAtlas
- FrameAtlas Pro$2.99








