Reciprocity Timer
🇰🇷 KR LocalizedScreenshots
Description
Manage your film photography from start to finish! Reciprocity Timer has 2 Version - the "Standard" Version does NOT include advanced features but can be used to calculate reciprocity on a range of common films. The "Pro" Version is available for an additional $9.99 USD (via in-app-purchase) unlocks a range of advanced features. The initial purchase price allows you to calculate reciprocity for all the films included by selecting an observed exposure time. This $1.99 US non-pro version is suitable for people who just need to calculate an exposure that includes reciprocity adjustments for commonly used films. It will suit many users who don't require or need to upgrade to the pro version for features like note keeping or a camera database etc. It's most suitable if you are new to film. More advanced film users and photographers may want to pay to upgrade after their initial purchase to the pro version. If you use a pro-feature you'll be prompted to upgrade for an additional $9.99 US. This will unlock all the additional features including the Zone Editor, Note, Camera and Film Holder database as well as custom films and filters. There is no need to upgrade if you just want to calculate and time reciprocity for a particular film and you always use the same camera. The app includes in-app purchase to unlock pro features including a note-keeping feature, the ability to add custom films and the ability to select often used film stock as favorites. Once you upgrade then the one app does it all - notes, filters, exposure calculations, custom films, zone system editor, film holder management as well as the reciprocity math! A comprehensive film reciprocity calculator for photographers. Select a film type and metered exposure time - the calculator will provide a reciprocity compensated exposure time. The app includes an exposure timer so you can time your long exposures. You can also use a slider to adjust exposure when you have filters attached. The app supports a wide range of film stocks and allows the user to add various common exposure filters such as NDs and Polarizers. Keep detailed notes and share them. Share your adjusted exposure times with colleagues. This app makes film photography a breeze. You may need to setup Reciprocity Timer in Settings -> Notification Center to ensure the app's timer can notify you when exposures are ending and your device is asleep. Watch companion app now included. To install the app use the Apple Watch App on your phone. Ensure your watch and phone are paired an unlocked and scroll down the list of available apps to Reciprocity Timer. Select Install. You can also turn on "Automatically Install Apps".
What's New
Fixes to Note Taker drag and drop and saving. Fixes to PDF Export. Bug fixes.
Details
- Developer
- Pump Interactive
- Main Category
- Photo & Video
- Version
- 3.99
- Version Release
- 2024-10-11
- Initial Release
- 2011-08-31
- Size
- 27 MB
- Age Rating
- 4+
- Price
- USD 1.99
- Languages
- EN
- Bundle ID
- pumpinteractive.reciprocitycalculator
- Version Rating
- ★ 3.00 (3)
- First Seen
- 2026-05-28
Metadata updated 2026-07-19
Rank History
Free · Max 90 days · Top 5 categories shown (Y-axis: rank, lower is better)
No rank history data
Free Rankings
No rankings
Paid Rankings
Competitive Benchmark — Photo-Video Top 10
What it takes to beat this app — comparison with the category's top apps. The orange row is the current app.
| # | App | Price | Rating | Ratings | Langs | Last Update |
|---|---|---|---|---|---|---|
| 1 | Moment Pro Camera II | USD 9.99 | ★ 4.37 | 353 | 1 | 2026-06-30 |
| 2 | PhotoPills | USD 10.99 | ★ 4.71 | 1,515 | 9 | 2026-04-16 |
| 3 | YoungPhoto - Aesthetic Camera | USD 1.99 | ★ 5.00 | 2 | 5 | 2026-06-26 |
| 4 | Stop Motion Studio Pro | USD 5.99 | ★ 4.74 | 13,535 | 17 | 2025-12-10 |
| 5 | Print to Size | USD 2.99 | ★ 4.86 | 19,385 | 6 | 2026-03-13 |
| 6 | PromptSmart Pro - Teleprompter | USD 29.99 | ★ 4.60 | 11,303 | 1 | 2026-06-03 |
| 7 | iWebTV PRO | USD 6.99 | ★ 4.71 | 4,083 | 2 | 2026-07-18 |
| 8 | myLightMeter PRO | USD 3.99 | ★ 4.79 | 1,074 | 7 | 2026-07-14 |
| 9 | CineTemp | USD 19.99 | ★ 4.88 | 25 | 1 | 2026-07-13 |
| 10 | LumaFusion | USD 29.99 | ★ 4.75 | 24,671 | 13 | 2026-07-06 |
| 52 | Reciprocity Timer | USD 1.99 | ★ 3.00 | 3 | 1 | 2024-10-11 |
User Reviews
Its a little ugly but gets the job done :)
I would like to report an issue with Reciprocity Timer App. After the update to version 3.9 the app keeps crashing and closing on my iPhone (14 Pro Max, ISO 17.6.1). I use Reciprocity Timer to record my photo data, and it is very useful. I hope this issue is resolved as soon as possible.
Hello. I would like to report an issue with Reciprocity Timer App. After the update to version 3.8, the app keeps crashing and closing on my iPhone (14 Pro Max, ISO 17.6.1). I use Reciprocity Timer to record my photo data, and it is very useful. I hope this issue is resolved as soon as possible. Thank you.
Paid $1.99 for an app that doesn’t allow one to change most of the settings and while the instructions state that an upgrade to the pro version can be purchased within the app, I’m unable to find a link/button within the app to do so. Paying for apps is something i am happy to do, knowing that it normally supports better products, but either charge the full price up front, for a fully working app or make certain that the upgrade link is available within the app as mentioned in the manual.
As all of my lenses have speeds that are NOT true to their stated times, that had cause many years of frustration in attempts to get good exposures. I had purchased a shutter speed timer, and hand written the speed averages for each, but attempting to then mentally calculate exposure reciprocity? It was a nightmare. Then I hear of “Reciprocity Timer”. Now with the App enhancement of being able to enter my own shutter speeds, I have consistently taken good exposure photos time and time again.
Seems like a useful app, but I may never really know. The text on screen is way too tiny to read. Does the designer intend for us to use a lupe??
You pay $1.99 only to find out you need to upgrade for $9.99 to use all the features.
Keeps crashing or deleting custom settings. Tried contacting developer and got no response. UPDATE: app is working great now after a conversation with the developer. Sent him screen recordings and data to help him figure it out. App update was done in a few hours, approved by Apple and downloaded to my phone a couple hours later. It’s already helped me. Cheers.
Have you guys actually used this app? Or did you just chuck it onto the App Store without even testing it?? Because that’s what it seems like for sure. I have yet to use a feature that doesn’t have bugs; if it even works at all. Did you notice the keyboard won’t minimize unless you have a particular text box in focus? Or that you have to select each film holder you create as you add them else the entire list will peace out into another dimension when you do select one? I could go on for an hour but I’m not your beta tester.. I’m unfortunately your customer. You need to take a serious look at your process.
App closes when choosing a custom film holder with Pro version. Reinstalled app and still doesn’t work. I tried contacting developer, but I don’t Facebook. Otherwise, app is very helpful.
It will not boot up. Tried rebooting the phone and no help. I can’t even review this app. It does not work.
"Selected Film" does not display all the letters, and "New Note" does not display all the letters.
Reviews are collected only for apps with detected changes (new entries or sharp risers).