Number Your Days: AI Journaling App
Intentional journaling app for Android using a tiered AI analysis system. Daily insights with Gemini Flash, monthly and yearly synthesis with Gemini Pro. A summarisation chaining strategy reduces token usage by ~98% versus naive approaches while maintaining full analytical depth. Live on Google Play Store.
~98%
Token Reduction
3 Levels
Analysis Tiers
Google Play
Platform
The Challenge
Journaling apps provide no feedback or reflection — users write into a void with no insight returned.
Naive AI analysis of long journal histories is prohibitively expensive in token usage.
Daily, monthly, and yearly insights require different levels of analytical depth and context.
Users needed meaningful synthesis of their personal growth without exposing full journal content unnecessarily.
The Solution
Tiered AI Analysis
Three distinct analysis levels: Gemini Flash processes daily entries for quick insights, Gemini Pro synthesises monthly patterns into deeper reflections, and yearly analysis produces a comprehensive personal growth narrative.
Summarisation Chaining
Instead of sending full journal history to the AI on every request, a chaining strategy progressively summarises past entries. This reduces token usage by approximately 98% versus naive approaches while preserving full analytical depth.
Intentional Design
The app is built around deliberate reflection — prompts encourage meaningful entries, and AI feedback is timed to reinforce the journaling habit rather than interrupt it.