Comparison

Diary Keeper vs OctiNote

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

Head to head
About

Diary Keeper

Features
Read full description

Diary Keeper is a private diary that makes it easy to write a little every day and find it again years later. WRITE WITHOUT THE BLANK PAGE • A fresh writing prompt every day, or shuffle for another • Eight templates: daily reflection, gratitude, mood check-in, morning intentions, weekly review, travel log, dream log, brain dump • Focus mode hides everything but your words • Bold, italic, underline, strikethrough, bulleted and numbered lists • Seven handwriting fonts, colours, sizes and paper backgrounds CAPTURE THE WHOLE DAY • Add photos, voice notes and places • Pick a mood from three emoji styles • Tag entries and mark events like Friends, Travel, Fitness or Rest • Bookmark the days worth keeping close PRIVATE BY DESIGN • Lock with a passcode, Face ID or Touch ID • Choose how quickly the diary locks again • Home-screen widgets hide your text while the lock is on • No account needed. Your writing never touches our servers NEVER LOSE A WORD • iCloud sync keeps every device up to date • Export a print-ready PDF booklet with your photos • Export Markdown for any notes app • Full backup you can restore on a new phone FIND ANY MOMENT • Search titles, text, tags, events, moods and places • Filter by bookmarks, drafts, photos, voice notes or year • Timeline groups your story month by month • On This Day brings back what you wrote one, two or five years ago MAKE IT YOURS • Thirteen themes, from Sunset to Winter Eve • Today's Quote and Recent Entries widgets, plus your own quotes • Daily reminders on the days you choose Start with one line about today. Diary Keeper keeps the rest.

About

OctiNote

A minimalist note-taking application designed for speed and simplicity. It offers instant saving, secure hidden notes with biometric authentication, and easy organization through favorites. All data is stored locally on your device for enhanced privacy.

Highlights
  • Quick capture with instant autosave
  • Favorites for easy organization
  • Biometric protection for hidden notes
  • On-device storage for privacy
  • Related note suggestions
  • Accessibility features
Features
Read full description

Write it down the moment it comes to mind, and lock notes you want to keep private. OctiNote is a local notes app for iPhone and iPad focused on quick writing and easy retrieval. No account is required, and Hidden Notes are protected with Face ID, Touch ID, or your device passcode. Key features - Quick note creation with automatic saving - Full-text search and Korean initial-consonant search - Favorites and Hidden Notes - Device authentication lock - Checklist, bullet, and date-stamp tools - Share the note you are editing - Full file backup with merge restore - CSV/TXT import and export - Privacy shield in the app switcher Notes stay on your device without a server account. They leave the app only when you choose a backup, export, or share destination.

Screenshots

Diary Keeper4 screens
OctiNote4 screens

Verdict

The call

The clearest difference is ads: Diary Keeper at none against OctiNote's shown. OctiNote's advantage is update cadence (every 6 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Diary Keeper ships an update every 3 weeks, OctiNote every 6 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Diary Keeper versus OctiNote: the parameters behind the verdict, then further details
ParameterDiary KeeperOctiNote
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size98 MB12 MB
Age rating17+4+
DeveloperSaranjith KrishnanHong Seok Yang

In-app purchases

None

Diary Keeper

No in-app purchases

None

OctiNote

No in-app purchases

Questions

Is Diary Keeper free?
Diary Keeper is free to download, with no in-app purchases.
Is OctiNote free?
OctiNote is free to download, with no in-app purchases.
Do Diary Keeper or OctiNote have ads?
OctiNote shows ads; Diary Keeper does not.
Which is updated more often, Diary Keeper or OctiNote?
Diary Keeper ships an update every 3 weeks, and OctiNote every 6 days. Most recently, Diary Keeper was updated on October 27, 2026 and OctiNote on October 30, 2026.

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