# LExp - Long Exposure Calcs — user reviews > 36 indexed App Store user reviews of LExp by Ilya Genkin Photography, rated 4.70/5 from 17 ratings. - Source: https://appshunter.io/ios/app/lexp-long-exposure-calcs/id547000247/reviews - App overview in markdown: https://appshunter.io/ios/app/lexp-long-exposure-calcs/id547000247.md - Rating breakdown: 5★ 15 · 4★ 0 · 3★ 1 · 2★ 1 · 1★ 0 ## Newest reviews (10 of 36) ### 5/5 — Impressed *2017-03-11* No ads and lots of calculators all in one app. Also I like the explanations, a really well built app. A touch pricey (only a touch) but most of the useful photography apps normally are. ### 5/5 — This is the one! *2016-10-29* Tried a few similar apps but this one is the best for me. Easy to use with many functions and clear explanations! Thanks. ### 5/5 — Very Useful *2016-09-14* If you are serious about long exposure photography - this app is definitely for you. Simply love it! ### 5/5 — The Best 🤓 *2016-06-18* This is most likely the best app there is. Take it from me I am a pro-photographer 👍 ### 5/5 — Amazing app I love it so much!!! *2015-12-09, version 2.3* Superb app very useful, it a real help to exposed photographs with ND Filters. I love the possibility to adjust exposure Time with two filters. Times pause a true good and précis. Thanks for this amazing app the best by far face all the others ones. ### 4/5 — Problem with timer *2015-04-09* There is a problem with the stacked flters timer, when the iPhone goes to sleep, the timer stops working, it should keep working in the background and wake the phone with the 20 sec waening. ### 5/5 — A solid app! Great for photographers! *2015-03-28* A very informative app with a lot of information about the "right" settings for various situations. ### 5/5 — Best exposure app. *2014-11-22* I have two other exposure apps that work well, but app has it all. Comprehensive and simple to use. ### 5/5 — Perfect! *2014-11-15* Takes the guess work out it, less trial and error. It allows you to be more efficient, accurate and productive. Easy to follow with the information you require at your finger tips. ### 5/5 — Thank you *2014-11-04* Thank you so much for the lovely new update. The new flat design is awesome! ## Most critical reviews (10 lowest-rated) ### 1/5 — Annoyed *2015-10-03* This makes absolutely no sense; times stated for stacking ND filters, for which I purchased the app, is ridiculous. The rest of the information can be found anywhere on the web that deals with photography. For me, a complete waste of time & money...was sent to this app via a photography blog. Won't be wasting my time with them again either. ### 1/5 — Rubbish *2015-07-23* No instructions, forget it ### 2/5 — Version fr *2025-03-06* Comment puis-je obtenir et installer la version en français ? J’attends la réponse depuis le 17 octobre 2024 😤 ### 2/5 — Version fr *2024-10-17, version 3.8* Comment puis-je obtenir et installer la version en français ? ### 2/5 — What were they thinking *2016-09-24* The older version of this app was simple and such a joy to use. The new version is complicated and convoluted, must have been designed by an engineer and not a user. Some features and info are nice additions, but the New interface is a downgrade in my opinion. None the less, thanks to Lee Filters for even having an app, It does make life easier. ### 3/5 — Well Done but *2016-05-10, version 2.5* it would be Super Cool if you could have up to 3 stops of comp. in the Stacking Filters Calculator ### 3/5 — iPhone only! *2015-12-30* Needs updating to a universal app. Otherwise good. ### 4/5 — Language setting problem *2020-11-27, version 3.7* Unable to set an other language except English ### 4/5 — Shared app *2018-02-09* This app works fine, but not too sure how to share via Apple Family Sharing ### 4/5 — Beautiful app. *2016-04-28* Very useful and very easy to use. Only one complaint, no reset on the timer for stacking ND filters. I hope this fixed in the future. ## Most praised reviews (10 highest-rated) ### 5/5 — Makes taking LE images more efficient *2025-02-23* Great app. Have been using this for years and has made my LE field process more efficient, effective and enjoyable. Thank you ### 5/5 — Just bought this app *2021-11-01* Very nicely put together with a lot of helpful tips. Hope the keep the updates coming to keep up with iOS updates ### 5/5 — Highly Useful App *2021-09-22* No serious landscape photographer should go on a shoot without this app. It takes the mental gymnastics out of calculating camera adjustments necessary to achieve the best creative results using ND filters and long exposures. ### 5/5 — Nature Photographer’s Adventure Guide *2019-10-30* Want to photograph star trails? You need to know the settings for your camera. This app is where you will find them. An intuitive interface gives you the calculations for all kinds of nature subjects such as aurora photography, and lunar imaging. Now all you need is a reliable camera, proper clothing, and a sense of adventure. ### 5/5 — Great Landscape/Night Photography App *2018-12-29* LExp is an exceptional photography tool that provides a series of handy calculators to optimize camera settings for a variety of landscape, nighttime and tripod-based captures. The app is extremely easy to use and for less experienced photographers, provides well-written documentation and explanations of the features and function of each calculator. Even though I know most of the rules covered by the app, the calculators include a number of additional elements that are camera (e.g., high-res) or condition (moon shots in clear vs. hazy conditions) specific to optimize your exposures. Would love to see an Android version for my phone and auto-rotate for the app since I typically use my iPad on a keypad stand. ### 5/5 — Great app *2018-10-06* I recently invested considerable sum into the Lee filter system for my Nikon D850. This app is a perfect match, allowing me to quickly calculate proper exposure for various filter combinations. While I have yet to shoot in the field since getting all my filters, I've played with the app enough to know it will be quite handy. It also got a recent update, so its nice to know development is active. ### 5/5 — Thank you! *2018-06-20* Thank you so much! The best! Спасибо, Илья, давно хотел взять твою программу, все что то было не до того. Сейчас посмотрел твой сайт, ещё раз порадовался за нужный софт. Спасибо! ### 5/5 — Questions answered! *2017-10-06* This Ap will not make you a photographer, but it will help you create photographs. Awesome help, thank you! ### 5/5 — Must have! *2017-08-23* Not just a calculator. Excellent multitool with lots of professional tools for many photo/video needs. Important - each instrument has own very informative and helpful HELP menu, as well as a learning base. Beside that - quick, professional and friendly customer support. Highly recommended and huge respect to authors and developers! ### 5/5 — A very handy tool *2017-06-12* This is a great tool to use for night photography and blurred or frozen motion. Goes into great detail to explain how to capture stars across several popular techniques. I love this app. --- *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 2026-08-30.*