CameraTimeSync vs ReciproMeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CameraTimeSync
Read full descriptionHide full description
CameraTimeSync is designed for photographers who use multiple cameras and need their images aligned on a single timeline. Before your shoot, simply photograph the CameraTimeSync screen with each camera. The app displays precise GPS time, coordinates, timezone, and UTC offset, giving you one reliable reference. In Adobe Lightroom, you can adjust capture times based on these cue card images, ensuring every camera’s photos line up correctly. This saves hours in post‑processing and eliminates the frustration of mismatched camera clocks. CameraTimeSync is ideal for photography businesses managing assistants, event organizers, and editors. Wedding teams, sports crews, and corporate event photographers can all benefit from a streamlined workflow where every shot is synchronized. By standardizing time across devices, your team can deliver consistent, professional results without manual clock adjustments.
ReciproMeter
This app assists film photographers with accurate long-exposure calculations. It uses your device's camera to read exposure data, then provides shutter speed recommendations with reciprocity correction based on film stock and aperture. It offers official manufacturer data, community guidance, and experimental estimates.
- Live camera metering
- Reciprocity correction
- Built-in film library
- Community-sourced data
- Bulb timer
- Exposure lock
Read full descriptionHide full description
ReciproMeter is a free light meter for film photographers who need dependable long-exposure calculations. Use your iPhone camera to read exposure metadata, select your film stock and aperture, and get an immediate shutter recommendation. When exposure times run long, ReciproMeter applies reciprocity correction using official manufacturer data whenever available. For films where official datasheets stop short, ReciproMeter keeps the distinction clear: • Official manufacturer reciprocity data • Optional community-sourced long-exposure guidance • Optional experimental estimates, clearly labeled as lower confidence Features: • Live camera preview, visible by default, with an optional full-screen exposure view • Camera calibration, steadier readings, and low-light guidance • Manual EV and external meter input with reference aperture and ISO • Exposure lock for holding a reading while composing • Neutral-density compensation, then reciprocity on the longer time • One-stop exposure bracket that follows the film's reciprocity curve • Favorite films and a built-in library with correction charts and source links • Saved film, aperture, ND, and EI presets • Exposure notes with frame numbers and development results • Community and experimental long-exposure tiers as separate opt-ins • Metering ISO / EI override for push-pull workflows • Bulb timer with preparation delays, optional audible cues, and a Lock Screen countdown • Dark mode, light mode, or system appearance Privacy: ReciproMeter does not take or store photos. It only reads camera exposure metadata needed to estimate ambient light. An App Open ad may appear over the loading screen at launch, or on a return to Films, Notes, or Settings after you have been away for at least a minute, at most three times a day. Active metering, timers, note editing, and purchases are protected. The first launch is ad-free. The loading screen shows the Remove Ads Forever price when available. Remove Ads Forever is an optional one-time in-app purchase. It removes all advertising with no subscription or expiration. Purchase or restore it in Settings. Advertising privacy choices remain available from Settings where required.
Screenshots
Verdict
The clearest difference is update cadence: ReciproMeter at every 2 weeks against CameraTimeSync's every 27 months. 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. Neither carries in-app purchases, so what you see is what you pay.
CameraTimeSync ships an update every 27 months, ReciproMeter every 2 weeks. Both last shipped on October 12, 2026.
| Parameter | CameraTimeSync | ReciproMeter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 27 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Cox | Paul Frederiksen |
In-app purchases
CameraTimeSync
No in-app purchases
ReciproMeter
No in-app purchases









