Android app for crafting structured AI image-generation prompts using a wildcard system.
February 19, 2026
Smart Prompter is an Android app that lets you compose detailed, reproducible prompts for AI image generators. Instead of typing from scratch every time, you build prompts by embedding wildcards — short placeholder tags like [photography.camera] — that are randomly substituted with curated values at generation time.
Writing good AI image prompts is repetitive and inconsistent. You forget which lens you used last time, which lighting style gave you that great portrait, or which cinematic coloring made the shot look like a Kubrick film.
Smart Prompter fixes that by giving you:
The core of the app is a text field that understands [wildcard.key] syntax. As you type, matching wildcard suggestions appear inline. Tap one to insert it, then hit Generate to see random substitutions:
A portrait of a [character.age] [character.ethnicity] woman,
shot on a [photography.camera] with a [photography.lens],
[photography.light] lighting, [cinematic.coloring] color grade.
One template, infinite unique prompts.
Can't remember all 60+ categories? The Wildcards tab is a searchable directory. Tap any category to open a bottom sheet listing every possible value — useful for building templates or just exploring what's available.
Generated something you love? Save it. The My Prompts tab shows all saved prompts with timestamps and previews, with one-tap copy and swipe-to-delete.
| Domain | Key Examples |
|---|---|
| Photography | photography.camera, photography.lens, photography.light, photography.film |
| Character | character.age, character.ethnicity, character.hair-color, character.clothing-feminine |
| Cinematic | cinematic.director, cinematic.genre, cinematic.coloring, cinematic.shot |
| Fashion | fashion.designer, fashion.feminine, fashion.masculine, fashion.accessory |
| Architecture | architecture.architect, architecture.famous_building, architecture.home |
| Nature | nature.animal, nature.weather, nature.tree |
| People | people.celebrity, people.job, people.hobby, people.pose |
| Places | places.home, places.landscape, places.city, places.room |
| Food | food.drink, food.fruit, food.vegetable, food.fast-food |
| Color | color.basic, color.detailed |
Generate infinite variations from a single prompt template
All prompts are stored locally on your device