QuillBot - AI Writing Keyboard

What it does

QuillBot is an AI-powered writing tool designed to improve the quality of a user's text. It functions both as a standalone app and as a third-party keyboard. Its core features include a paraphraser to rephrase sentences, a grammar checker to correct errors, and a translator for multiple languages. The app aims to make advanced writing assistance accessible across any application on a user's phone.

Where it shines

QuillBot excels in its practical, task-oriented onboarding. The entire initial experience is dedicated to getting the user's keyboard set up and activated (00:27). It handles the tricky privacy permissions for keyboards with a clear, reassuring modal at 00:32 that explains what data it can and cannot access. The main app itself is also well-structured, providing easy access to its various tools like the Paraphraser and Translator from a central home screen (02:40).

UX highlights

Guided Setup: The app uses a checklist to guide users through the complex process of enabling a third-party keyboard in system settings, reducing the likelihood of user error.
Animated Demos: Early in the onboarding, animated carousels (00:02, 00:17) quickly and effectively demonstrate the app's value without requiring user action.
Feature Announcements: A prominent modal (01:22) announces new multilingual support, ensuring users are aware of recent improvements.
Interactive Tutorial: The onboarding concludes with a hands-on tutorial (01:05), allowing users to try the paraphrasing feature in a safe, simulated environment.
Contextual Tools: In the Paraphraser, users can adjust synonym levels with a slider (04:00), offering granular control over the output.

Monetization & growth

QuillBot introduces its monetization model after the user creates an account. At 02:14, it presents a paywall for its Premium subscription. The paywall clearly outlines the differences between the Free and Premium tiers using a feature comparison table. It offers three subscription plans (Annual, Semi-annual, Monthly) and highlights the savings on longer-term commitments. Notably, a free trial is not offered in this flow; users must subscribe directly to unlock premium features.

Who it’s for

The app is designed for a broad audience that includes students, professionals, content creators, and non-native English speakers. Anyone who writes frequently on their mobile device and wants to improve their clarity, tone, or grammar could benefit. Its utility as a system-wide keyboard makes it particularly useful for those who communicate through various apps, from email to social media.

Notes & opportunities

The main friction point is the keyboard setup itself. While the guide is helpful, requiring users to leave the app and navigate system settings is inherently complex and could lead to drop-off. The paywall's placement before a user can explore the main app interface might also be premature for some, as they haven't yet built a habit or fully experienced the free product's capabilities.