Mood Tracker vs Quant Life
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mood Tracker
Log your daily mood, habits, and memories in a single entry. Visualize your year through a clean calendar and insightful statistics, revealing patterns in your life over time. Attach photos to revisit cherished moments and gain a deeper understanding of your well-being.
- Daily mood tracking with notes
- Habit and routine tracking
- Photo attachment for memories
- Calendar timeline view
- Event logging
- Tagging and location context
- Interactive statistics
- Year in Pixels calendar
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Track your mood, habits, memories, and everyday life — all in one daily entry. Yian helps you build a complete picture of your year. Log your mood, write notes, track routines, attach photos, record events, and discover meaningful patterns through beautiful calendars and powerful insights. Every day becomes a small snapshot of your life. Over time, those snapshots reveal trends in your mood, habits, memories, and experiences. Features • Daily mood tracking (1–10) with rich notes and writing prompts • Dailies for tracking habits and recurring routines • Attach photos to preserve your memories • Weekly, monthly, yearly, and timeline calendar views • Year in Pixels calendar • Events with recurring support for appointments, trips, anniversaries, milestones, and more • Personalized insights, trends, and interactive statistics • Detailed breakdowns of your moods, habits, tags, locations, and more • Tags, bookmarks, and locations for better organization • Full-screen note editor designed for longer reflections • App Lock for additional privacy • Dark Mode for a comfortable experience day or night Whether you're keeping a mood journal, daily diary, gratitude journal, or simply recording life, Yian helps you see the bigger picture — one day at a time.
Quant Life
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Quant Life turns anything you care about into a simple tracker and a change you can see over time. Every entry is a dot: a weight, a night of sleep, a reading session, a net-worth snapshot, a private feeling, or something only you would think to measure. Keep the dots, and time begins to reveal the line. TRACK YOUR WAY • Start with thoughtful templates for body, life, work, wealth, relationships and pets • Create your own tracker with a number, rating, duration, choice, yes/no or text • Add an entry in seconds SEE CHANGE OVER TIME • Automatic charts and long-term summaries • A single timeline for everything you choose to record • Calm history views that keep the original facts visible SHARE IDEAS, NOT PRIVATE DATA • Generate a result card on your iPhone • Share an empty Quant Life template that friends can copy and adapt • Template files never include your entries PRIVATE BY DESIGN • No account required • No ads, analytics or tracking • Personal entries are not uploaded • Recording and review work offline • Face ID or device-passcode protection • Full JSON backup and restore Quant Life is free and contains no generative AI. It is a quiet foundation for something more valuable: a reliable personal record that becomes more useful with time. Record the dots. Understand the pattern.
Screenshots
Verdict
The clearest difference is device support: Mood Tracker at 3 against Quant Life's 1. Mood Tracker also leads on iOS requirement (15.5 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Mood Tracker | Quant Life |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 46 MB | 3 MB |
| Age rating | 4+ | 9+ |
| Developer | JungWoo Kwak | DLC39DEGREE |
In-app purchases
Mood Tracker
No in-app purchases
Quant Life
No in-app purchases









