You woke up with a dream, and it was already leaving. A sentence or two, written before you get out of bed, is often enough to keep it. Dreamala takes that note and develops a photograph of the scene, so you have something to look at when the wording has faded.
People have kept dreams by telling them, drawing them, and writing them down. The writing is what holds the detail. The photograph is a way to see the scene you described, later, when you want to come back to that night.
If you're waking with nothing you can put into words, start with how to remember dreams. The photograph can only use what you managed to write.
What you do
You write what you remember, in the words you'd use if you were telling someone at breakfast. A city made of glass, or a forest you were swimming through, is a fine place to start. You don't have to sound like a photographer.
Dreamala asks a few questions after that. They're about the gaps: who was there, what the light was like, whether the place felt familiar. You can skip any of them. The answers you give become part of the description, and the photograph is developed from that.
Falling, flying, and being chased turn up in a lot of people's dreams. That doesn't decide the photograph. The photograph comes from your words. If you've added a few details about how you look, the person in it can resemble you.
If the hard part is the blank page, there's a separate note on keeping a journal on your phone.
When the photograph is off
"I was in a forest" leaves the light, the ground, and whether you were alone open. Name those and the photograph has more to follow. Keep the odd parts. A forest of glass trees is more useful than a tidied-up version of what you saw.
On the free plan you can develop 3 photographs every four weeks, and each dream keeps one. Dreamala Pro gives you more photographs, so a dream can hold more than one version. You can also lock and hide individual dreams if you want particular ones kept out of the way.
Men's Health has a piece on why some people look back over their dreams. Putting a dream outside your head, on a page or in a photograph, is one way to do that. Dreamala isn't therapy, and a photograph isn't advice.
The app is free on iPhone and Android.
A photograph is an interpretation of what you wrote. Results vary.