# Reciprocity Plus vs Light Meter & Logbook

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.

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.

## The numbers

| Metric | Reciprocity Plus | Light Meter & Logbook |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.1 (7 ratings)](https://appshunter.io/ios/app/reciprocity-plus/id898649178/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/light-meter-and-logbook/id6474434590/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 8 MB | 71 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Le bord de la piscine](https://appshunter.io/developer/456593417) | [Vadim Turko](https://appshunter.io/developer/1721526454) |

## What reviewers say

### Reciprocity Plus

[App page](https://appshunter.io/ios/app/reciprocity-plus/id898649178)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### Light Meter & Logbook

[App page](https://appshunter.io/ios/app/light-meter-and-logbook/id6474434590)

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.

**Highlights:** 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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lightmeter Pro | $0.99 | per month |
| Lightmeter Pro | $14.99 | per year |
| Lightmeter Pro | $9.99 | one-time |


## Frequently asked questions

### Is Reciprocity Plus free?

Reciprocity Plus costs $1.99, with no in-app purchases.

### Is Light Meter & Logbook free?

Light Meter & Logbook is free to download, with in-app purchases available.

### Which has better reviews, Reciprocity Plus or Light Meter & Logbook?

Reciprocity Plus is rated higher. Reciprocity Plus averages 4.1 out of 5 from 7 ratings, while Light Meter & Logbook averages 4.0 from 1 ratings.

### Do Reciprocity Plus or Light Meter & Logbook have ads?

Neither Reciprocity Plus nor Light Meter & Logbook shows ads.

### Which is updated more often, Reciprocity Plus or Light Meter & Logbook?

Reciprocity Plus ships an update every 4 months, and Light Meter & Logbook every 5 weeks. Most recently, Reciprocity Plus was updated on October 24, 2026 and Light Meter & Logbook on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*