Reciprocity Plus vs Light Meter & Logbook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reciprocity Plus
This app simplifies long exposure photography calculations for both digital and analog cameras. It includes a vast library of filter effects and reciprocity charts, allowing users to design or modify their own. A built-in timer ensures accurate exposure timing even when the app is not in use.
- Long exposure calculation
- 29 filter effects (CTO, CTB, ND, etc.)
- 110+ reciprocity charts
- Customizable chart design
- Built-in timer
- Support for digital and analog photography
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Reciprocity+ : photo tool, for calculating long exposure, for digital and analog photography. Are you tired of mentally multiplying exposure time with yor ND3+ND8 filters, and then adding reciprocity failure rate ? Reciprocity + is for you : • 29 Filters : CTO, CTB, Green series, ND serie and more • 110 Reciprocity charts included. • Design your own chart or modify an existing one • Share your charts with PInhole Assit App, • Share by email •Available charts : • A chart adapted from Jim Shull's The Hole Thing • Two charts for RC photo paper , • 400TX,TMX,TMY,HP5+,100 Delta (source APUG forums) • max 400, T max 100,TRiX & Plus 125, Ilford films (Without Lenses website ) • Official Ilford films. • Ektachrome, Fujichrome, Agfachrome and + from "Using the View Camera". • Arista films (courtesy of David Aimone) • Ilford Pan F, Fuji FP100, Fuji Neopan 100 ACROS, Ektar 100 • Fuji FP 3000B • and more (119 films). • A timer, of You can quit the app, no matter what you do, the timer will notify you when the exposure is over. From the makers of Pinhole Assist.
Light Meter & Logbook
Transform your smartphone into a professional light meter and comprehensive photo logbook. It offers precise exposure readings, advanced tools for various photography styles, and a flexible interface to organize all your shooting data.
- Reflected metering with camera
- EV calibration and fractional stops
- ISO range 3-25,600
- ND filter and long-exposure timer
- Spot metering with histogram
- Film library and push/pull processing
- Photo logbook for settings and notes
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Turn your phone into a professional light meter and photo logbook — ideal for film, digital, medium-format, and pinhole photography. ACCURATE EXPOSURES • Reflected metering with your camera • EV calibration for precision • Fractional stops (1/2, 1/3) for fine-tuning ADVANCED TOOLS • ISO range from 3 to 25,600 • ND filter and long-exposure timer • Spot metering with histogram • 35mm equivalent focal length display • Medium-format focal length conversion support • Apply color filters to the live preview for accurate B&W film visualization • Pinhole camera support with custom f-numbers • Built-in library of 20+ films with the option to add your own • Push/pull processing support • Reciprocity correction for long exposures FAST & FLEXIBLE • One-tap exposure calculation • Customizable metering screen layout • Equipment profiles for cameras, lenses, and pinhole setups — now including medium-format systems • Dark mode and haptic feedback COMPLETE PHOTO LOGBOOK • Record exposure settings, location, and notes • Keep all shooting data organized and accessible PERSONALIZED INTERFACE • Light, Dark, or System themes • Custom primary color Download Light Meter & Logbook to achieve accurate exposures and keep every shot documented — all in one powerful app. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Light Meter & Logbook at Free against Reciprocity Plus's $1.99. Light Meter & Logbook also leads on update cadence (every 5 weeks vs every 4 months). Reciprocity Plus's advantage is in-app purchases (none vs 3) and ratings volume (7 vs 1). On rating, ads, device support 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
Light Meter & Logbook is free to download; Reciprocity Plus costs $1.99 up front. Light Meter & Logbook sells 3 in-app purchases, starting at $0.99 per month. Reciprocity Plus asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.1 for Reciprocity Plus against 4.0 for Light Meter & Logbook. That said, the two scores are not equally well evidenced: Reciprocity Plus has 7 ratings behind it against 1, so its average is the more settled of the two.
Reciprocity Plus ships an update every 4 months, Light Meter & Logbook every 5 weeks. Both last shipped on October 24, 2026.
| Parameter | Reciprocity Plus | Light Meter & Logbook |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.1 (7 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Le bord de la piscine | Vadim Turko |
Customer experience
Reciprocity Plus
Light Meter & Logbook
In-app purchases
Reciprocity Plus
No in-app purchases
Light Meter & Logbook
- Lightmeter Pro$0.991 Month
- Lightmeter Pro$14.991 Year
- Lightmeter Pro$9.99
Questions
Is Reciprocity Plus free?
Is Light Meter & Logbook free?
Which has better reviews, Reciprocity Plus or Light Meter & Logbook?
Do Reciprocity Plus or Light Meter & Logbook have ads?
Which is updated more often, Reciprocity Plus or Light Meter & Logbook?
Other comparisons
