Comparison

OnceJournal vs odd

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

Head to head
About

OnceJournal

Features
Read full description

Your Story, Beautifully Kept. Every moment deserves to be remembered. OnceJournal transforms your daily thoughts into a beautiful collection of memories - simple enough for a quick note, powerful enough to capture your entire journey. Whether you're reflecting on your day, tracking your moods, or writing letters to your future self, OnceJournal makes journaling feel effortless and meaningful. FREE FEATURES - Unlimited journal entries with mood tracking - Daily writing prompts to inspire reflection - Tags to organize your thoughts - Entry Threads - see related memories woven together - Future Letters - write to your future self - Calendar and On This Day views - Beautiful statistics and writing insights - Favorites to mark special moments - Photos (up to 3 per entry) - 1 Journal - Basic Analog Mode fonts - Dark mode support - 7 languages supported PREMIUM - $7.99 (One-Time Purchase) Unlock the full OnceJournal experience: - Unlimited photos (up to 50 per entry) - Multiple journals - organize by theme or mood - Premium Analog Mode fonts and paper textures - PDF Export - turn your journal into a beautiful book - All future premium features included No subscriptions. Pay once, own forever. Terms of Use: https://prizmchain.github.io/oncejournal-terms-of-service.html Privacy Policy: https://prizmchain.github.io/oncejournal-privacy-policy.html

About

odd

This app allows you to create a daily journal with a single photo and a few words. It features unique animal stickers to express your mood and a calendar view to revisit past entries. Sync your journal across devices using iCloud and secure it with Face ID.

Highlights
  • Daily photo and text entries
  • Expressive animal stickers
  • Calendar view of past entries
  • iCloud synchronization
  • Face ID security
  • Home screen widgets
Features
Read full description

One day is one entry: a photograph and a few words. That is the whole diary. There is no feed to scroll, no likes, nothing to set up. You open the app in the evening, you put the day down, you close it. THE DAY A photo from the camera or your library, the date, and as much text as you want. It saves itself as you type โ€” there is no Save button to forget. STICKERS Thirty-five cats and dogs stand right in the sentence, where a word would be: a sad cat, a dog at a laptop, a cat with a glass at the end of a long Tuesday. They are the only color in a black-and-white app, and they stay on the day โ€” the calendar, the widgets and the year keep to gray. Type a word or an emoji and the right animal comes running. THE HISTORY Written days become squares in a calendar. Scroll back and the months keep going; tap a square and the day opens. A year is visible whole. THE EVENING REMINDER It comes only while today is still empty. Write the day and the evening stays quiet. WIDGETS Today's photograph on the home screen, the whole year as squares, and a small mark on the lock screen that opens the diary. YOUR OWN iCLOUD Entries sync through your private iCloud โ€” the iPhone writes, the iPad shows the same year. There is no account, no login, and no server of ours holding your year. We cannot read what you write. FACE ID The diary opens with your face or your passcode. There is no separate code inside the app: it would be nobody's to restore. FREE, AND ODD PRO The diary, the calendar and your entries on every device you own are free always โ€” one photograph a day, and as many words as you like. odd Pro adds: โ€ข up to five photographs in a day โ€ข the cats and dogs in your text โ€ข the Today and Year widgets โ€ข the Face ID lock Three days free. After that a year at a time, or one payment that never runs out. An expired subscription never hides what you have already written โ€” it only stops you adding more. iPhone, iOS 18 and later. Privacy Policy: https://required.co.nz/odd/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OnceJournal4 screens
odd4 screens

Verdict

The call

The clearest difference is update cadence: odd at every 4 days against OnceJournal's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. OnceJournal sells 1 one-off in-app purchase and odd sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OnceJournal ships an update every 5 months, odd every 4 days. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.

Scorecard1 real difference ยท 7 level
OnceJournal versus odd: the parameters behind the verdict, then further details
ParameterOnceJournalodd
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 5 monthsEvery 4 days โ€” better
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Freemium
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size12 MB11 MB
Age rating4+4+
DeveloperNOH HIYEONGKonstantin Shmykov

In-app purchases

1 purchases

OnceJournal

One-time1
  • Premium Lifetime$7.99
2 purchases

odd

Subscriptions1
  • odd Pro for a year3 Days trial$24.991 Year
One-time1
  • odd Pro Forever$49.99

Questions

Is OnceJournal free?
OnceJournal is free to download, with in-app purchases available.
Is odd free?
odd is free to download, with in-app purchases available.
Do OnceJournal or odd have ads?
Neither OnceJournal nor odd shows ads.
Which is updated more often, OnceJournal or odd?
OnceJournal ships an update every 5 months, and odd every 4 days. Most recently, OnceJournal was updated on October 28, 2026 and odd on October 17, 2026.

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