Fontsy AI iOS Keyboard — Custom Keyboard & Font Styling for iOS
2026Full Cyclemobile
Role
Full cycle: from idea and architecture to development and deployment.
Tech
Swift / UIKit + SwiftUI | KeyboardKit (keyboard extension) | Adapty (subscriptions) | Firebase (remote config, analytics) | Amplitude (product analytics) | AppsFlyer (attribution) | OpenAI API (AI features) | App Groups (settings sync between app and keyboard)
Key features
- 01102 styled fonts
- 02Full keyboard customization
- 03Preset themes + custom
- 04AI features inside the keyboard
- 05Auto-Paste
01
Problem
iOS gives users no control over the keyboard's appearance or text style. Want to write a post with a unique font, customize your keyboard, or quickly generate text with AI — the default keyboard can't do any of that. People are forced to copy text from third-party websites, switch between apps, and live with the default design.
02
Audience
| Role / profile | Scenario |
|---|---|
| SMM managers and bloggers | Styled text for Instagram, TikTok, Twitter posts — stand out in the feed without Photoshop |
| Teenagers and students | Keyboard customization as self-expression, unique fonts in messages |
| Content creators | Quick text generation and improvement via AI directly in the keyboard |
| Everyone tired of the default keyboard | Visual personalization: custom colors, backgrounds, sounds |
03
What's different
- Everything in one place: fonts + themes + AI + auto-paste — no need for 4 different apps.
- Works as a keyboard, not an app: text transformation and AI features are available in any input field, in any app on the device.
- A builder, not a catalog: 20+ customizable appearance parameters — not "choose from 10 themes," but build your own from scratch.
- No manual copying from websites: one tap — text in the desired style in the clipboard.
04
Screenshots
05
Customization
- 01Keyboard background — solid color, gradient, or any image from the gallery
- 02Keys — separate colors for system and regular keys, borders, shadows
- 03Key labels — font and letter color selection
- 04Sounds — multiple key press sound options
- 05Behavior — auto-capitalization, auto-paste template management
- 06Themes — unlimited creation, saving, editing, and deletion
Need something like this?
Tell me about the task — I'll suggest an approach, pick a stack and scope it out.