# Reciprocity Plus — Long exposures without failure > Long exposure calculator with filter effects and reciprocity charts for photographers. (iPhone/iPad app by Le bord de la piscine.) - Source: https://appshunter.io/ios/app/reciprocity-plus/id898649178 (this page in markdown: same URL + `.md`) - Developer: [Le bord de la piscine](https://appshunter.io/developer/456593417) - Category: Photo & Video, Utilities - Price: $1.99 - Rating: 4.10/5 from 7 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 8 MB - Languages: American English, French (France) - Released: 2014-07-22 - Data updated: 2026-08-25 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/reciprocity-plus/id898649178/reviews.md ## What is Reciprocity Plus? 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. ## Key features - 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 ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/reciprocity-plus/id898649178/reviews.md ### 3/5 — Good but… *2025-11-07* It is absolutely great for its fundamental purpose, calculating reciprocity departure time. There is a list of many many film types, with provision to save a certain number of those his favorites. However, and here is the butt, there appears to be no way to remove a favorite from the favorite list. This is a real bummer. **Developer response:** Tap on the heart icon to add a film as a favorite, tap again on that icon to remove from the favorite list (like the Music app). ### 5/5 — Must have *2024-10-12* In the Analog profession ### 5/5 — Très pratique *2022-07-03* Application simple mais efficace pour calculer les corrections de temps de pose lors de l'utilisation de filtres et d'expositions longues (effet Schwarzschild) ### 5/5 — Works, Works, Works!! *2021-01-27* Only downside is I wish it added more film options. Like Cinestill 800T. There is no official data for it but through experimentation it can be added. Lomo400 follows the same guideline as Portra 400 but there is no portra 800 for example. ### 5/5 — Works great *2020-06-07* The app is really helpful to look up reciprocity failures on the go. The design is somewhat old-school but doesn‘t really hurt usability. ### 5/5 — Can’t see the text in the Dark Mode *2019-10-23* When I switch to the dark mode, the background turning into the black, but the text is still black. **Developer response:** The latest version of Reciprocity Plus (1.11.2) features compatibility with the dark mode of iOS 13. ### 1/5 — Uhhhh... *2019-10-15* Nothing shows up on the reciprocity tab rendering this app useless for me even though I just paid for it... Using 13.1.2. **Developer response:** The latest version of Reciprocity Plus (1.11.2) features compatibility with the dark mode of iOS 13. ### 3/5 — no funciona bien *2019-10-13, version 1.11.1* es una aplicación estupenda, pero el otro dia la fui a utilizar y ya no funciona correctamente. ### 5/5 — Love This App *2019-04-27* So handy and works well. Hope future updates include a bellows factor calculator for large format, view camera shooters. **Developer response:** Thank you for your suggestion. We will look on how to include bellow factor. Please note that pinhole assist, another app we produce has complete support for bellow factor. ### 5/5 — Magnífica *2014-12-30, version 1.3* Indispensable para gestionar el fallo de reciprocidad de las películas fotográficas. Además, permite calcular instantáneamente los incrementos de exposición provocados por la adición de filtros. ## Frequently asked questions about Reciprocity Plus ### What is Reciprocity Plus used for? Reciprocity Plus is a photo tool designed to calculate long exposure times for digital and analog photography. It helps photographers manage exposure compensation due to filters and reciprocity failure. ### Does Reciprocity Plus have ads? No, Reciprocity Plus does not contain advertisements. It is a paid application designed to offer an uninterrupted user experience for photographers. ### How many filters does Reciprocity Plus include? Reciprocity Plus comes with 29 different filter effects, including CTO, CTB, Green series, and ND filters, to help users achieve specific lighting and color effects in their long exposures. ### Can I create my own reciprocity charts in Reciprocity Plus? Yes, you can design your own reciprocity charts or modify existing ones within Reciprocity Plus. The app includes 110 reciprocity charts and allows for customization. ### What devices is Reciprocity Plus available on? Reciprocity Plus is available for iPhone and iPod devices. It is designed to be compatible with iOS operating systems. ### How often is Reciprocity Plus updated? The latest version of Reciprocity Plus is 1.26, which was last updated on September 8, 2025. Updates typically include new features, bug fixes, and compatibility improvements. ### What is the price of Reciprocity Plus? Reciprocity Plus is a paid application priced at $1.99. This one-time purchase grants access to all its features and content. ### What is the age rating for Reciprocity Plus? Reciprocity Plus has an age rating of 4+, making it suitable for users of all ages. The content is generally considered safe and appropriate for a broad audience. ## Version history (last 5 releases) ### 1.26 — 2025-09-08 We regularly update and enhance the application, for better and nicer pinhole shots. In this version: * code optimization * compatibility with iOS 15/16/17/18 + 26 * new film: Frankenstein 200 BW 4x5 119 films available! You don't find your favorite film ? Send us your request, we will fulfill it. ### 1.25 — 2025-03-31 We regularly update and enhance the application, for better and nicer pinhole shots. In this version: * fixed alarm sound delay in the timer 118 films available! You don't find your favorite film ? Send us your request, we will fulfill it. ### 1.24 — 2024-10-17 We regularly update and enhance the application, for better and nicer pinhole shots. In this version: * added Rollei Ortho 25 + * code optimization for iOS 18 118 films available! ### 1.23 — 2024-06-04 We regularly update and enhance the application, for better and nicer pinhole shots. In this version: * added Fuji Color 200, Harman Phoenix 200 and Kodak Gold 200 * added Fuji Instax Color film (experimental curve - use with care) * enhanced english and french text * code optimization. 117 films available You don't find your favorite film ? Send us your request, we will fulfill it. ### 1.22 — 2023-11-03 We regularly update and enhance the application, for better and nicer pinhole shots. In this version: * added the Shangai GP3 B&W, Rollei R80s and Rollei Superpan 200 films * code optimization. 113 films available ## Apps similar to Reciprocity Plus | App | Rating | Price | Category | | --- | --- | --- | --- | | [Photo Timer+](https://appshunter.io/ios/app/photo-timer-plus/id557785123) | 4.7 (8,345) | Free | Photo & Video | | [Self timer Pro Camera photo](https://appshunter.io/ios/app/self-timer-pro-camera-photo/id836710225) | 5.0 (1) | $0.99 | Photo & Video | | [Lensa AI: Photo Editor](https://appshunter.io/ios/app/lensa-ai-photo-editor/id1436732536) | 4.7 (417,096) | Free | Photo & Video | | [Lens Buddy - Self Timer Camera](https://appshunter.io/ios/app/lens-buddy-self-timer-camera/id1289471945) | 4.9 (33,833) | Free | Photo & Video | | [Fast Camera](https://appshunter.io/ios/app/fast-camera/id402777723) | 4.7 (697) | $4.99 | Photo & Video | | [Timer Auto Camera - Set Second](https://appshunter.io/ios/app/timer-auto-camera-set-second/id415294299) | 4.7 (1,020) | Free | Photo & Video | ## More apps by Le bord de la piscine - [WiFiMIDI](https://appshunter.io/ios/app/wifimidi/id456593414) - [Pinhole Assist](https://appshunter.io/ios/app/pinhole-assist/id466757473) - [Calibration Plus](https://appshunter.io/ios/app/calibration-plus/id1414916538) All apps by Le bord de la piscine: https://appshunter.io/developer/456593417 ## Related topics [reciprocity plus](https://appshunter.io/ios/topics/reciprocity-plus) · [reciprocity timer](https://appshunter.io/ios/topics/reciprocity-timer) · [reciprocity](https://appshunter.io/ios/topics/reciprocity) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*