Comparison

Lumos Diary vs Tailii

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lumos Diary

This app helps you understand yourself better by transforming daily records into insightful visualizations and AI-driven analysis. Capture moments with text, photos, and locations, and track emotional changes over time.

Highlights
  • Quick capture with text, photos, and location
  • AI-generated titles, tags, and emotion detection
  • Emotion visualizations based on Plutchik's Wheel
  • Track emotional trends and patterns
  • AI-powered mood insights and suggestions
  • Weekly AI-generated summary letters
  • Private chat with AI companions
Features
Read full description

---------- Lumos Features Record · AI · Visualization Lumos transforms daily records into meaningful self-understanding, helping you see yourself over time. ---------- 1. Quick Capture Capture daily moments effortlessly with text, photos, and locations. 2. Smart Understanding AI automatically generates titles, tags, and detects emotions to organize your entries. 3. Emotion Petals Based on Plutchik’s Emotion Wheel, Lumos transforms emotions into intuitive visualizations, revealing your inner state. 4. Emotion Trends Track emotional changes and long-term patterns through weekly and monthly views. 5. Mood Insights AI offers gentle suggestions to help you better understand and navigate your emotions. 6. Weekly Letters Receive a weekly AI-generated letter summarizing your emotions and life moments. 7. AI Companions AI responds to your entries with different personalities, accompanying your expression over time. 8. Private Chat Talk with AI anytime to share your thoughts and feelings. 9. Long-term Memory Lumos gradually understands your emotions and personal context, providing more personalized responses. 10. Quick Search Easily find past journal entries and important memories. 11. Location Records Capture where important moments happened, making your memories more vivid. ---------- 12. Emotion Analysis Model Lumos is based on psychologist Robert Plutchik’s Emotion Wheel: • Eight basic emotions: Joy, Trust, Fear, Surprise, Sadness, Disgust, Anger, Anticipation • Each emotion has multiple intensity levels (e.g., Serenity → Joy → Ecstasy) Helping you understand emotional structures more precisely. ---------- 13. AI Disclaimer AI-generated analysis and suggestions are for reference only and do not constitute professional advice. Please use your own judgment. ---------- 14. Privacy First Your journal belongs to you. • Entries are stored locally on your device • AI analysis and visualization data are processed locally • Data is securely synced via iCloud • You retain full control of your data ---------- 15. Lumos Pro Subscription Subscribe to Lumos Pro to unlock full AI capabilities and advanced visualization features. • Auto-renewable subscription (cancel anytime) • Free trial available • Managed through your Apple Account ---------- 16. Legal Privacy Policy https://lumos-app.notion.site/privacy-en Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Tailii

Features
Read full description

Tailii is a personal surprise countdown - an Advent Calendar for birthdays, anniversaries, graduations, holidays, and every occasion worth celebrating. Create messages, photos, videos, drawings, and other thoughtful surprises. Choose when the countdown begins, and Tailii reveals them one at a time leading up to the special day. HOW TAILII WORKS 1. Create a countdown and choose the celebration date 2. Decide how many surprises you want to include 3. Add messages, photos, videos, drawings, and stickers 4. Set the daily reveal time and when the countdown begins 5. Share the countdown privately with someone special 6. Tailii unlocks each surprise at the scheduled time WHY CHOOSE TAILII - An Advent Calendar for any event: Create a surprise countdown beyond the Christmas season - Made personally by you: Craft every surprise for someone special - Flexible countdowns: Choose one surprise per day or create a custom number - Scheduled reveals: Decide when surprises begin and what time they unlock - Creative surprise editor: Combine text, photos, videos, drawings, stickers, and backgrounds - Hidden until the right moment: Future surprises remain locked until their reveal time - Private sharing: Only your recipient can access the countdown you share - Memories worth revisiting: Opened surprises remain available to enjoy again - Playful, hand-drawn design: Turn every countdown into a colorful and personal experience PERFECT FOR - Birthdays - Anniversaries - Graduations - Weddings and engagements - Christmas and holidays - Farewells - Vacations and trips - Long-distance relationships - "Just because" surprises - Any special day worth counting down to PRIVACY Tailii is designed for personal sharing. Your countdown and surprises are shared privately with your intended recipient. See our Privacy Policy at tailii.com/privacy. SUPPORT Questions, ideas, or feedback? Contact us at hello@tailii.com. Tailii - make every special day even more special, one surprise at a time.

Screenshots

Lumos Diary4 screens
Tailii4 screens

Verdict

The call

The clearest difference is update cadence: Tailii at daily against Lumos Diary's fortnightly. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lumos Diary sells 6 in-app purchases, starting at $2.99 per month and Tailii sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lumos Diary ships an update fortnightly, Tailii daily. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Lumos Diary versus Tailii: the parameters behind the verdict, then further details
ParameterLumos DiaryTailii
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size51 MB53 MB
Age rating4+4+
DeveloperBeijing Shunxi Wanxian Technology Co., Ltd.Dinh Quang Trung

In-app purchases

6 purchases

Lumos Diary

Subscriptions6
  • Lumos Pro Early-Bird(Monthly)7 Days trial$2.991 Month
  • Lumos Pro Monthly7 Days trial$3.991 Month
  • Lumos Pro Early-Bird(Quarterly)7 Days trial$6.993 Months
Show 3 more
  • Lumos Pro Quarterly7 Days trial$9.993 Months
  • Lumos Pro Early-Bird(Yearly)7 Days trial$19.991 Year
  • Lumos Pro Yearly7 Days trial$39.991 Year
1 purchases

Tailii

One-time1
  • 10 Events$9.99

Questions

Is Lumos Diary free?
Lumos Diary is free to download, with in-app purchases available.
Is Tailii free?
Tailii is free to download, with in-app purchases available.
Do Lumos Diary or Tailii have ads?
Neither Lumos Diary nor Tailii shows ads.
Which is updated more often, Lumos Diary or Tailii?
Lumos Diary ships an update fortnightly, and Tailii daily. Most recently, Lumos Diary was updated on October 30, 2026 and Tailii on October 31, 2026.

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