Comparison

sDiary vs 日記

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

Head to head
About

sDiary

Features
Read full description

One day a page. One intention, a few moments, then seal it. sDiary is a slow, intentional journal. You write a single line for what the day is about, capture a handful of moments as text, photos, or voice, and then seal the page. Once a day is sealed it goes into your book: the long arc of every page you've written. No streaks. No engagement loops. No coach. No social. The day is yours, and so is the book. The flow. Morning. Set an intention. One sentence. Through the day. Add moments. Text, photo, or voice. Evening. Reflect. Seal the day. The page closes; tomorrow is a fresh one. Threads (Pro). The phrases that keep coming back across your sealed days, surfaced automatically. All computation happens on your device. No cloud, no AI provider. Trusted Reader (with Sync). Invite exactly one person you trust to read your sealed days. They see what you chose to share, when you chose to share it. Revoke any time. Year-Review. Every December 31, sDiary auto-opens a retrospective of the year: the intentions, the recurring threads, the sealed-day count. Free, Pro, and Sync. The base app is free, forever. Pro is a one-time unlock that opens Threads, voice moments, unlimited photos per day, full-history search, and Year-Reviews. Sapplify Sync is free with a Sapplify account and covers multi-device sync and the Trusted Reader feature, across every Sapplify app. Local-first, by default. Your days live in a SQLite database on your phone. Nothing leaves your device unless you turn on Sapplify Sync, and even then, only your own data, to your own account. Terms of Use: https://www.sapplify.com/terms/sdiary/ Sapplify Account Privacy: https://www.sapplify.com/policies/account/ Sapplify Account Terms: https://www.sapplify.com/terms/account/

About

日記

Easily capture your daily moments, thoughts, and feelings with a clean, distraction-free interface. Add photos to entries, track your mood, and revisit past memories through a convenient calendar view. This app is designed for anyone wanting to preserve memories simply and effectively.

Highlights
  • Create diary entries
  • Attach photos to entries
  • Calendar view for past entries
  • Mood tracking
  • Clean and simple interface
Features
Read full description

A simple and easy-to-use diary app for capturing your everyday moments. Write about: - What happened today - How you felt - Small memories you never want to forget Record your daily life in a clean, simple interface that's designed to be easy to use every day. Add photos to your diary entries, track your mood, and look back on past memories with the calendar. We kept the app simple and distraction-free so you can focus on what matters most: your memories. Features - Create Diary Entries Write freely about your day, thoughts, and experiences. - Add Photos Attach photos to your entries to make your memories even more vivid. - Calendar View Browse your diary by date and quickly revisit past entries. - Mood Tracking Record how you feel each day and reflect on changes over time. - Simple Design A clean and calming interface with no unnecessary clutter. Recommended For - Anyone who wants to start keeping a diary - People who want to record their daily thoughts and feelings - Those who enjoy preserving memories with photos - Anyone looking for a simple, easy-to-use journal app - People who want to keep track of parenting, work, relationships, health, hobbies, and more - Anyone who found paper diaries difficult to maintain but prefers using a smartphone Your diary doesn't have to be long. Even a single sentence, or just a photo, can become a precious memory when you look back later. Why not take a moment to record today's memories? Terms of Use: https://taka3267-collab.github.io/tkApps/diary/terms.html Privacy Policy: https://taka3267-collab.github.io/tkApps/diary/privacy-policy.html

Screenshots

sDiary4 screens
日記4 screens

Verdict

The call

The clearest difference is in-app purchases: 日記 at none against sDiary's 3. sDiary's advantage is ads (none vs shown) and iOS requirement (15.0 vs 18.0). On price, update cadence 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. sDiary sells 3 in-app purchases, starting at $1.99 per month. 日記 asks for nothing beyond the download.

UpkeepUpdate frequency

sDiary ships an update every 3 weeks, 日記 every 10 days. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 5 level
sDiary versus 日記: the parameters behind the verdict, then further details
ParametersDiary日記
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size47 MB10 MB
Age rating4+4+
DeveloperAnthony Eli RaschTakahiro Kimura

In-app purchases

3 purchases

sDiary

Subscriptions2
  • Sapplify Sync Monthly1 Month trial$1.991 Month
  • Sapplify Sync Yearly1 Month trial$19.991 Year
One-time1
  • sDiary Pro$29.99
None

日記

No in-app purchases

Questions

Is sDiary free?
sDiary is free to download, with in-app purchases available.
Is 日記 free?
日記 is free to download, with no in-app purchases.
Do sDiary or 日記 have ads?
日記 shows ads; sDiary does not.
Which is updated more often, sDiary or 日記?
sDiary ships an update every 3 weeks, and 日記 every 10 days. Most recently, sDiary was updated on October 10, 2026 and 日記 on October 21, 2026.

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