---
title: "Reciprocity Timer - Reviews, Revenue and Downloads in United States | Apple App Store"
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 c"
---

# Reciprocity Timer — United States

![Reciprocity Timer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f2/9a/d3/f29ad366-a22c-d814-7b55-378484018b14/AppIcon-0-0-1x_U007emarketing-0-6-0-0-85-220.png/434x0w.png)

**Developer:** [Pump Interactive](https://apptail.io/developer/pump-interactive-yRn)
**Category:** Photo Video
**Rating:** 3.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** pumpinteractive.reciprocitycalculator
**Store:** Apple App Store
**Country:** United States
**Version:** 3.99 (released 2024-10-11)
**Original Release:** 2011-08-31
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id459691262)
**AppTail Page:** [https://apptail.io/app/reciprocity-timer-yqNc/united-states](https://apptail.io/app/reciprocity-timer-yqNc/united-states)

## Reciprocity Timer 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".

## Reciprocity Timer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/bd/e1/54/bde15437-56fe-c204-d478-35e5f4c8ac4f/b2c6436f-fb11-47b1-a572-fd96f827d0ce_Main.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/49/a2/03/49a20355-22d0-5f0f-1aca-e822421b16f6/262fa5f6-8c86-4480-a147-8ef12c15b4d8_Notebook.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/09/43/a1/0943a113-1d1b-1409-5406-a5acb506796b/aad3663c-a9c7-46d8-ac2a-132be12c03e8_Note_detail.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/a9/6b/d7/a96bd7c4-917a-6c56-60ed-bb5be5c0fd00/9af72283-c4b8-4051-977f-7d0987532219_Zone_Editor.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/aa/c0/fb/aac0fb4f-bda1-ec75-7900-42fa99e3baf7/f9436dfd-703e-4bed-b8bb-72658bf1625b_Custom_Film.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/74/96/70/749670d1-8c74-02e3-8595-0a54d73a6efb/63f66a6a-7db8-439b-b71a-d1e723d11b0a_Filters.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/0d/14/8b/0d148bf6-57bb-de3e-7c98-5559c18baebd/f2c26f8d-042a-4c3f-932d-c2fc8d0cc954_Cams.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/6a/1d/60/6a1d605b-c0e7-fbd7-eabd-75da4f65e8af/2ecebfc3-3479-4a7a-b7af-5bf30950816a_Lens.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/a1/3e/cd/a13ecdee-5d7d-603b-a1ed-947a93443b22/2b09059e-4dad-440b-95c4-604ec06fbe5b_Holder.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/f3/19/a8/f319a86f-d1e0-b93a-295f-c5e319a448dd/a26ae279-f48e-42e5-93c8-2ec3a2bf31bb_Holder_Frame.png/1242x2688.png)

## Reciprocity Timer Rating Breakdown in United States
- 5 stars: 1 (33%)
- 4 stars: 0 (0%)
- 3 stars: 1 (33%)
- 2 stars: 0 (0%)
- 1 stars: 1 (33%)

## Reciprocity Timer Reviews in United States

### *---- "Very poorly designed app"
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.
-- djimbee5, 2024-02-17

### ***** "Has changed the game for me"
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.
-- Robert Frase, 2023-04-14

### ***-- "Clever but text is way too tiny"
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??
-- ziebart, 2022-08-22

### *---- "Bait and Switch"
You pay $1.99 only to find out you need to upgrade for $9.99 to use all the features.
-- bob6803, 2021-12-21

### ***** "Was good, not so much now"
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.
-- BillPutnamPhoto, 2021-12-05

### *---- "Good idea.. bad implementation"
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.
-- Mischievous Mr C, 2021-07-09

### ***-- "Film Holder Glitchy"
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.
-- Larry-710, 2020-11-08

### *---- "Do not buy this app"
It will not boot up. Tried rebooting the phone and no help. 

I can’t even review this app. It does not work.
-- S4Steve Ducati, 2020-08-05

### *---- "100% inaccurate"
Awesome idea but is totally wrong.  Being able to compound multiple filters, bellows, compensation and reciprocity is fantastic. Except the reciprocity calculations for FP4+ is totally wrong.  Even simple calculations do not match up with published data.  I tried to contact the developer with an example discrepancy and questions and they never responded.  I won’t continue using the app because I can’t rely on it.
-- atstockland, 2020-05-17

### *---- "Complete Rip-off"
Do not waste a dime.  95% of the features are not available without the pro version. It’s $2 so I’m not losing my mind but just warning you to pass on this app.
-- thetroutbum, 2019-12-30

### *---- "Disappointing. Very poor"
I bought the app and right away all the menu options say Upgrade to Premium. Waste of money
-- Leftclicktailwag, 2019-09-11

### ***** "Great app, handy for 4x5 shooters"
Not enough credit is given for this app. This app is incredibly handy for calculating bellows compensation and reciprocity. Yes, this app could use more films in the database, but as a 4x5 shooter, all of the emulsions  I need are listed.
-- DBM4891, 2019-03-03

### *---- "Waist of time and money"
No use for an app that won’t stay open long enough to use can’t chose a filter without it crashing!  If I could give it zero stars I would
-- Widow Queen, 2018-03-16

### *---- "Complete Waste of Money"
You could easily just use a timer and find the reciprocity data on your film box insert. All other features require you to buy the “Pro-Version.”  There’s no benefits to this silly app. The worst part is it crashes constantly.
-- odysseywoods, 2018-03-14

### *---- "Awesome notetaking app for large format photography"
Is this app abandoned? No update and now it does not run under 9.1.
-- badzny5, 2015-11-03

### *---- "Don't waste your time and money as I did"
Film database is a joke, many missing important films like Fuji negative color films (Superia, Reala, etc). Publisher should list films so you know before paying for it if it's going to be helpful for you, and although the app is not free, there is no way to add films unless you pay an extra $9.99, a real rip-off.
-- RafaKoy, 2015-06-20

### ****- "Notes needs a little work"
The notes function (pro version) is pretty clunky. Can't add categories on the fly, and apparently can't move notes between categories. If not for that, it's 5 star.
-- anti-climax, 2014-11-26

### ****- "Great app + bellows extension"
Love the app so far. Love the bellows extension. I came across some Arista edu 400iso (4x5) and noticed that neither it nor Foma 400 (if it exists) are on the app. Is there any way this can be added? Thanks!
-- The right margin text, 2014-11-05

### *---- "Disappointed."
The screenshots are for the Pro Version, which is 10 bucks, and should be distinguished better... This neutered version should be free....
-- Mclaughlinlives, 2014-09-30

### ***** "Best App For Large Format Photography"
This is a one of a kind app that is invaluable for my large forms film photography. It is MUCH more then just a reciprocity timer, in fact I think the name should be changed sense it has evolves to so much more.  

This app is a total exposure calculator and note taker for film photography. 

The developer is friendly and listens and implements the feedback he gets into the app. 

The zone system annotations are a great addition to the already great exposure note abilities.
-- zrb123, 2014-09-28

[View all Reciprocity Timer reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Reciprocity Timer In-App Purchases
| Item | Price |
|------|-------|
| Reciprocity Timer Pro | $9.99 |

## Reciprocity Timer Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Netherlands | Photo Video | #22 |
| Top Paid | France | Photo Video | #52 |
| Top Paid | China | Photo Video | #61 |
| Top Paid | South Korea | Photo Video | #63 |
| Top Paid | United States | Photo Video | #117 |
| Top Paid | Finland | Photo Video | #126 |
| Top Paid | Poland | Photo Video | #139 |
| Top Paid | Belarus | Photo Video | #160 |
| Top Paid | Norway | Photo Video | #166 |
| Top Paid | Portugal | Photo Video | #167 |
| Top Paid | Romania | Photo Video | #175 |
| Top Paid | Hong Kong SAR China | Photo Video | #179 |
| Top Paid | Czechia | Photo Video | #180 |
| Top Paid | Sweden | Photo Video | #187 |
| Top Paid | Ireland | Photo Video | #188 |
| Top Paid | Belgium | Photo Video | #188 |
| Top Paid | Hungary | Photo Video | #189 |
| Top Paid | New Zealand | Photo Video | #195 |
| Top Paid | Denmark | Photo Video | #198 |
| Top Paid | Greece | Photo Video | #201 |
| Top Paid | Netherlands | Overall | #211 |
| Top Paid | Austria | Photo Video | #220 |
| Top Paid | Ukraine | Photo Video | #225 |
| Top Paid | Singapore | Photo Video | #238 |
| Top Paid | Italy | Photo Video | #239 |
| Top Paid | Taiwan | Photo Video | #243 |
| Top Paid | Switzerland | Photo Video | #246 |
| Top Paid | South Africa | Photo Video | #246 |
| Top Paid | Spain | Photo Video | #253 |
| Top Paid | Australia | Photo Video | #253 |
| Top Paid | Canada | Photo Video | #262 |
| Top Paid | South Korea | Overall | #278 |
| Top Paid | Chile | Photo Video | #281 |
| Top Paid | United Kingdom | Photo Video | #289 |
| Top Paid | Peru | Photo Video | #293 |
| Top Paid | Argentina | Photo Video | #306 |
| Top Paid | Philippines | Photo Video | #317 |
| Top Paid | Thailand | Photo Video | #319 |
| Top Paid | Germany | Photo Video | #322 |
| Top Paid | Israel | Photo Video | #327 |
| Top Paid | Russia | Photo Video | #331 |
| Top Paid | Indonesia | Photo Video | #334 |
| Top Paid | Lebanon | Photo Video | #357 |
| Top Paid | Vietnam | Photo Video | #362 |
| Top Paid | United Arab Emirates | Photo Video | #371 |
| Top Paid | Kazakhstan | Photo Video | #380 |
| Top Paid | India | Photo Video | #391 |
| Top Paid | Colombia | Photo Video | #404 |
| Top Paid | Kuwait | Photo Video | #411 |
| Top Paid | Malaysia | Photo Video | #431 |
| Top Paid | Türkiye | Photo Video | #443 |
| Top Paid | Brazil | Photo Video | #447 |
| Top Paid | Mexico | Photo Video | #449 |
| Top Paid | Nigeria | Photo Video | #454 |
| Top Paid | Japan | Photo Video | #470 |

## Reciprocity Timer Discovered Keywords
- reciprocity timer

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## Reciprocity Timer Available In
- [United States](https://apptail.io/app/reciprocity-timer-yqNc/united-states)
- [United Kingdom](https://apptail.io/app/reciprocity-timer-yqNc/united-kingdom)
- [China](https://apptail.io/app/reciprocity-timer-yqNc/china)
- [South Korea](https://apptail.io/app/reciprocity-timer-yqNc/south-korea)
- [Denmark](https://apptail.io/app/reciprocity-timer-yqNc/denmark)
- [Sweden](https://apptail.io/app/reciprocity-timer-yqNc/sweden)
- [Japan](https://apptail.io/app/reciprocity-timer-yqNc/japan)
- [Austria](https://apptail.io/app/reciprocity-timer-yqNc/austria)
- [Finland](https://apptail.io/app/reciprocity-timer-yqNc/finland)
- [Germany](https://apptail.io/app/reciprocity-timer-yqNc/germany)
- [Canada](https://apptail.io/app/reciprocity-timer-yqNc/canada)
- [Switzerland](https://apptail.io/app/reciprocity-timer-yqNc/switzerland)
- [Chile](https://apptail.io/app/reciprocity-timer-yqNc/chile)
- [Colombia](https://apptail.io/app/reciprocity-timer-yqNc/colombia)
- [Cyprus](https://apptail.io/app/reciprocity-timer-yqNc/cyprus)
- [Czechia](https://apptail.io/app/reciprocity-timer-yqNc/czechia)
- [Dominican Republic](https://apptail.io/app/reciprocity-timer-yqNc/dominican-republic)
- [Algeria](https://apptail.io/app/reciprocity-timer-yqNc/algeria)
- [Ecuador](https://apptail.io/app/reciprocity-timer-yqNc/ecuador)
- [Estonia](https://apptail.io/app/reciprocity-timer-yqNc/estonia)
- [Egypt](https://apptail.io/app/reciprocity-timer-yqNc/egypt)
- [Spain](https://apptail.io/app/reciprocity-timer-yqNc/spain)
- [France](https://apptail.io/app/reciprocity-timer-yqNc/france)
- [Greece](https://apptail.io/app/reciprocity-timer-yqNc/greece)
- [Hong Kong SAR China](https://apptail.io/app/reciprocity-timer-yqNc/hong-kong)
- [Hungary](https://apptail.io/app/reciprocity-timer-yqNc/hungary)
- [Indonesia](https://apptail.io/app/reciprocity-timer-yqNc/indonesia)
- [Ireland](https://apptail.io/app/reciprocity-timer-yqNc/ireland)
- [Israel](https://apptail.io/app/reciprocity-timer-yqNc/israel)
- [India](https://apptail.io/app/reciprocity-timer-yqNc/india)
- [Italy](https://apptail.io/app/reciprocity-timer-yqNc/italy)
- [Kuwait](https://apptail.io/app/reciprocity-timer-yqNc/kuwait)
- [Kazakhstan](https://apptail.io/app/reciprocity-timer-yqNc/kazakhstan)
- [Lebanon](https://apptail.io/app/reciprocity-timer-yqNc/lebanon)
- [Sri Lanka](https://apptail.io/app/reciprocity-timer-yqNc/sri-lanka)
- [Lithuania](https://apptail.io/app/reciprocity-timer-yqNc/lithuania)
- [Luxembourg](https://apptail.io/app/reciprocity-timer-yqNc/luxembourg)
- [Latvia](https://apptail.io/app/reciprocity-timer-yqNc/latvia)
- [North Macedonia](https://apptail.io/app/reciprocity-timer-yqNc/north-macedonia)
- [Mexico](https://apptail.io/app/reciprocity-timer-yqNc/mexico)
- [Malaysia](https://apptail.io/app/reciprocity-timer-yqNc/malaysia)
- [Nigeria](https://apptail.io/app/reciprocity-timer-yqNc/nigeria)
- [Netherlands](https://apptail.io/app/reciprocity-timer-yqNc/netherlands)
- [Norway](https://apptail.io/app/reciprocity-timer-yqNc/norway)
- [New Zealand](https://apptail.io/app/reciprocity-timer-yqNc/new-zealand)
- [Peru](https://apptail.io/app/reciprocity-timer-yqNc/peru)
- [Philippines](https://apptail.io/app/reciprocity-timer-yqNc/philippines)
- [Pakistan](https://apptail.io/app/reciprocity-timer-yqNc/pakistan)
- [Poland](https://apptail.io/app/reciprocity-timer-yqNc/poland)
- [Portugal](https://apptail.io/app/reciprocity-timer-yqNc/portugal)
- [Romania](https://apptail.io/app/reciprocity-timer-yqNc/romania)
- [Russia](https://apptail.io/app/reciprocity-timer-yqNc/russia)
- [Saudi Arabia](https://apptail.io/app/reciprocity-timer-yqNc/saudi-arabia)
- [Singapore](https://apptail.io/app/reciprocity-timer-yqNc/singapore)
- [Slovenia](https://apptail.io/app/reciprocity-timer-yqNc/slovenia)
- [Slovakia](https://apptail.io/app/reciprocity-timer-yqNc/slovakia)
- [Thailand](https://apptail.io/app/reciprocity-timer-yqNc/thailand)
- [Tunisia](https://apptail.io/app/reciprocity-timer-yqNc/tunisia)
- [Türkiye](https://apptail.io/app/reciprocity-timer-yqNc/turkey)
- [Taiwan](https://apptail.io/app/reciprocity-timer-yqNc/taiwan)
- [Ukraine](https://apptail.io/app/reciprocity-timer-yqNc/ukraine)
- [Vietnam](https://apptail.io/app/reciprocity-timer-yqNc/vietnam)
- [United Arab Emirates](https://apptail.io/app/reciprocity-timer-yqNc/united-arab-emirates)
- [South Africa](https://apptail.io/app/reciprocity-timer-yqNc/south-africa)
- [Armenia](https://apptail.io/app/reciprocity-timer-yqNc/armenia)
- [Argentina](https://apptail.io/app/reciprocity-timer-yqNc/argentina)
- [Australia](https://apptail.io/app/reciprocity-timer-yqNc/australia)
- [Azerbaijan](https://apptail.io/app/reciprocity-timer-yqNc/azerbaijan)
- [Belgium](https://apptail.io/app/reciprocity-timer-yqNc/belgium)
- [Bulgaria](https://apptail.io/app/reciprocity-timer-yqNc/bulgaria)
- [Brunei](https://apptail.io/app/reciprocity-timer-yqNc/brunei)
- [Brazil](https://apptail.io/app/reciprocity-timer-yqNc/brazil)
- [Belarus](https://apptail.io/app/reciprocity-timer-yqNc/belarus)

---

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