Reciprocity Plus vs Filter Simulation
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.
Filter Simulation
Simulate the effects of real optical filters for black and white photography. This app accurately mimics the luminance modulation of red, yellow, green, blue, and orange filters. It also includes an automatic shutter speed calculator for ND filters and a pinhole photography simulator.
- Simulate optical filters for B&W
- Mimics red, yellow, green, blue, orange filters
- Custom CIColorKernel shaders
- Automatic shutter speed calculator for ND filters
- Pinhole photograph simulation
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Simulate real optical filters in black & white. This app uses custom CIColorKernel shaders to modulate grayscale luminance based on color vector similarity—accurately mimicking red, yellow, green, blue, and orange filters as used in film photography. Then, if needed, save the filtered image with filter information. Then, swipe left and find an automatic shutter speed calculator for applying various ND filters And that's not all; keep on swiping and you can simulate pinhole photographs before shooting!
Screenshots
Verdict
The clearest difference is price: Filter Simulation at Free against Reciprocity Plus's $1.99. Filter Simulation also leads on rating (5.0 vs 4.1) and review sentiment (100% vs 70%). Reciprocity Plus's advantage is chart position (#185 vs unranked). On ratings volume, 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
Filter Simulation is free to download; Reciprocity Plus costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Filter Simulation holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 70% of Reciprocity Plus's written reviews are positive against 100% of Filter Simulation's.
Reciprocity Plus ships an update every 4 months, Filter Simulation monthly. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.
| Parameter | Reciprocity Plus | Filter Simulation |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.1 (7 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 70.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 3 |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #185 — better | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Le bord de la piscine | Ari Jaaksi |
Customer experience
Reciprocity Plus
Filter Simulation
In-app purchases
Reciprocity Plus
No in-app purchases
Filter Simulation
No in-app purchases
Questions
Is Reciprocity Plus free?
Is Filter Simulation free?
Which has better reviews, Reciprocity Plus or Filter Simulation?
Do Reciprocity Plus or Filter Simulation have ads?
Which is updated more often, Reciprocity Plus or Filter Simulation?
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