Comparison

404Log vs DiaryThreads

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

Head to head
About

404Log

This app helps you track your emotions and analyze your romantic feelings over time. Log special moments, identify attraction signals, and review past crushes to understand your love life patterns. It's a personal space to reflect on your emotional journey.

Highlights
  • Love Frequency & Attraction Signals
  • Special Moments Calendar
  • Emotion Chart & Crush Trends
  • Ranking & Past Crush History
  • Reconnection Frequency
  • Relationship Mode Tracking
Features
Read full description

Ever wondered how your feelings change over time? That little moment when your crush looked at you, replied a little faster, or just walked past you… It might not seem like much, but when you're into someone, every second matters. This isn't just a journal. It's a space to track your emotions, analyze your love frequency, and see where your heart is headed. - Love Frequency & Attraction Signals What's your love frequency today? Are you stuck in an unrequited love zone, or is your energy pulling them closer? Find out if you're broadcasting the right signals for love, attraction, or even a text back. - Special Moments Calendar Love has its own milestones, even if it's one-sided. Save the first time they noticed you, the day you had the longest conversation, or when they liked your post. Every small detail makes up your love story. - Emotion Chart & Crush Trends Your emotions aren't random—track them like a pro. See how your feelings rise and fall over time, and spot patterns in your love life. Are you moving on, or just going in circles? - Ranking & Past Crush History Who’s been your longest-lasting crush? Your past loves tell a story. Analyze your dating patterns and see how your feelings evolved over time. You might be surprised by what you discover. - Reconnection Frequency & Relationship Mode Is it really over, or could there still be a spark? Check your reconnection frequency and see if there’s a chance to rekindle something. Even if you’re already in a relationship, you can use this to track your emotions and strengthen your bond. Love is unpredictable, but your feelings don’t have to be. Start tracking, reflecting, and maybe… tuning into the right frequency for love.

About

DiaryThreads

Transform your life into a series of shareable posts, just like social media. Capture thoughts, photos, videos, or voice notes in short entries organized into a private timeline. Gain insights into your journaling habits and revisit memories with customizable widgets.

Highlights
  • Post thoughts, photos, videos, voice notes
  • Private timeline organization
  • Insights into journaling habits
  • Home Screen widgets for memories and new posts
  • App Lock for enhanced privacy
  • No account required, local storage
Features
Read full description

DiaryThreads offers a new way to journal: capture life as easily as posting and let every entry become part of a timeline that is entirely your own. 【As Easy as Posting—Reply to and Quote Your Past Self】 -- Capture a thought, a photo, or a voice recording in the moment. A flexible editor helps you preserve life in richer detail. -- Find an earlier entry, reply to it or quote it, and see what has changed. -- When you have more to say, use an Article to publish a polished long-form card on your timeline. 【Understand Your Life】 -- Analytics brings together days recorded, total characters, posting frequency, and changes over the last 30 days. -- Your private trending list highlights the keywords and topics you have been returning to lately. -- State of Mind entries you choose to add also appear in Analytics, helping you look back on emotional changes. -- Topic Insights show when and how often each topic appears. 【Let Widgets Bring the Past Back】 -- The “Random Entry” widget brings an older entry to your Home Screen. Tap to shuffle or open its details. -- The “Write an Entry” widget puts writing on your Home Screen, so a new entry is always one tap away. Past and present stay close at hand. -- The “Photo Memory” widget brings treasured photos back into view. 【Light, Simple, and Entirely Yours】 -- DiaryThreads requires no account. Content is stored locally first; Premium can sync it across your Apple devices through your private iCloud. -- No ads, third-party analytics, or cross-app tracking. -- Premium imports and exports are processed locally on your device, keeping your content in your hands. 【Diary Threads Premium】 -- The free version keeps up to 30 current entries. -- Diary Threads Premium unlocks unlimited entries, share posters, keyword trends, private iCloud sync, local import and export, and all three Home Screen widgets. -- Premium is available as a monthly or annual subscription, or as a one-time lifetime purchase. Actual prices are shown in the App Store. Privacy Policy: https://foggy-bellflower-ae3.notion.site/Diary-Threads-Privacy-Policy-3aa1a28522d98112b480d81a7b2f74db?source=copy_link EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

404Log4 screens
DiaryThreads4 screens

Verdict

The call

The clearest difference is in-app purchases: 404Log at none against DiaryThreads's 2. 404Log also leads on ratings volume (18 vs 1) and iOS requirement (13.0 vs 18.0). DiaryThreads's advantage is update cadence (daily vs every 6 days). On price, rating, review sentiment and ads 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. DiaryThreads sells 2 in-app purchases, starting at $2.99 per month. 404Log asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for 404Log against 5.0 for DiaryThreads. That said, the two scores are not equally well evidenced: 404Log has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

404Log ships an update every 6 days, DiaryThreads daily. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.

Scorecard5 real differences · 5 level
404Log versus DiaryThreads: the parameters behind the verdict, then further details
Parameter404LogDiaryThreads
PriceFreeFree
Rating4.9 (18 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings18 — better1
Update frequencyEvery 6 daysDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better18.0
Further details — not scored
Size67 MB38 MB
Age rating4+4+
DeveloperYoonjik Cho世杰 戴

Customer experience

404Log

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DiaryThreads

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

404Log

No in-app purchases

2 purchases

DiaryThreads

Subscriptions1
  • Monthly Premium$2.991 Month
One-time1
  • Lifetime Premium$6.99

Questions

Is 404Log free?
404Log is free to download, with no in-app purchases.
Is DiaryThreads free?
DiaryThreads is free to download, with in-app purchases available.
Which has better reviews, 404Log or DiaryThreads?
DiaryThreads is rated higher. 404Log averages 4.9 out of 5 from 18 ratings, while DiaryThreads averages 5.0 from 1 ratings.
Do 404Log or DiaryThreads have ads?
Neither 404Log nor DiaryThreads shows ads.
Which is updated more often, 404Log or DiaryThreads?
404Log ships an update every 6 days, and DiaryThreads daily. Most recently, 404Log was updated on September 20, 2026 and DiaryThreads on September 19, 2026.

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