Baker holds the iPhone 5s (equipped with Moondog anamorphic lens, on a Smoothee stabilizer) for a typically explosive confrontation scene. Courtesy of Shih-Ching Tsou

Calling all filmmakers: Tell us about an essential app that you think deserves the attention of the wider moviemaking community.

MovieMaker will publish a list of essential moviemaking apps in our Winter 2016 issue, which has a special focus on smartphone moviemaking. What are your favorite apps at any stage of the filmmaking process? Is there an app that you can’t live without on set? Whether an app is a digital slate, a collection of log sheets, or a light source guide, we want to hear about it. Let us know about it, and explain how the app has helped you.

Fill in the form below to submit your nomination. The best answers will quoted in MovieMaker‘s essential apps article, coming out this January. Nominations will be accepted until Wednesday, November 25, 2015.