CREATION 01 · PRODUCT & GROWTH CASE STUDY
How I built BBNotes to 11,000 downloads
An AI note-taking and PDF study tool for international students, grown from real lecture friction to 700+ cumulative paid subscriptions.
01 · THE PROBLEM
Studying abroad involves much more than taking notes
Students move between English lectures, unfamiliar terminology, PDFs, translations, and handwritten notes. These tasks are often split across different tools, making it difficult to keep the original material and its explanation connected.
The real problem was not one missing feature. It was the lack of a continuous workflow from class to courseware, questions, and review.
02 · THE PRODUCT RESPONSE
Bring the learning workflow together
BBNotes does not treat AI as a separate chat box. It places assistance inside the actions international students already take.
- Live bilingual captions display the lecturer’s original speech and translation.
- Side-by-side PDF translation keeps both versions aligned while scrolling.
- Circle to ask AI lets students select confusing content and ask about it directly.
- Handwriting and audio sync connects notes with the corresponding moment in a lecture.
03 · THE GROWTH LESSON
One breakout video validated demand—and revealed a fragile acquisition loop
A single Douyin video demonstrating a real feature drove more than 3,000 downloads. It proved that the problem was real and that showing the product in action was more persuasive than describing it abstractly.
When publishing slowed, exposure and new downloads declined as well. BBNotes had found an effective message, but acquisition still depended too heavily on individual content spikes.
The bottleneck was not a lack of demand. Effective product demonstrations had not yet been turned into a repeatable content system and durable search entry points.
04 · WHAT COMES NEXT
Turn short-term attention into discoverable, compounding acquisition
The next stage pairs regular product demonstrations on Douyin and Xiaohongshu with searchable feature and use-case pages, so students can discover BBNotes through both social content and search.
SEO does not replace content. It makes each successful content moment leave behind a reusable product asset.
PRODUCT DEMO
Key actions in one study workflow
TRY BBNOTES
Connect your lectures, PDFs, and notes in one place
Explore live bilingual captions, side-by-side PDF translation, and AI study features.