Comparison

Mo Diary vs Nook

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

Head to head
About

Mo Diary

This app helps you record and organize your life's moments. Save important events, notes, and memories with the ability to add photos, filter, and search entries. A premium version offers advanced features like PDF export and password protection.

Highlights
  • Store and organize notes and memories
  • Add images to entries
  • Filter and search entries by date or text
  • Auto-saving of content
  • Password and biometric login
  • iCloud data synchronization
Read full description

Mo Diary is your personal diary. LIST OF RECORDS. Store important events, notes, memories in one place. CONTROL. Delete entries or add them to "Favorites" with one touch (swipe). FILTERING BY DATE. By default, Mo Diary displays the records of the current month. If necessary, you can set the desired period and view the records included in it. FILTERING YOUR FAVORITE. Set a filter for entries that have been added to "Favorite". SEARCH. Mo Diary will find the necessary entries by text or title. AUTO SAVING. Create and edit records without losing content. PICTURE. Add an image or photo to your significant moments. Available to change, delete, view the added images. DATE OF RECORDING. In Mo Diary, you can set any recording date. DISPLAY SETTINGS. Choose a convenient interface option for your posts - it is possible to turn off the display of the title and / or image. WITHOUT ADVERTISING. The PREMIUM VERSION is available with a one-time purchase. Functionality of the premium version: REMOTE RECORDS. Access to deleted records for the last 30 days with the ability to restore the selected record / all records. PDF-FORMAT. Convert the selected record or all records to PDF format. PASSWORD LOGIN. Set the code to enter the application (in addition, by default, TouchID / FaceID login is available, if this option is activated on the device, it can be disabled). ICloud POSSIBILITIES. Data synchronization is possible if on the old and new devices: 1) Internet connection is provided 2) iCloud Drive option is active 3) iCloud option is active for Mo Diary app 4) iCloud has free storage 5) the same Apple ID is used 6) the "Sync with iCloud" option is activated in the application

About

Nook

This app offers a secure and private space for your notes and journal entries. It features unique privacy typing to obscure text as you write and ensures all data remains locally on your device with no cloud synchronization or tracking. Organize your thoughts with customizable notes, lockable folders, and robust security options.

Highlights
  • Privacy Typing to obscure text
  • Local storage, no cloud
  • Face ID, Touch ID, or passcode lock
  • Lockable folders
  • Customizable note appearance
  • Nested folder organization
  • Encrypted backup export
Features
Read full description

Nook is a calm, private place for your notes, journal and everyday thoughts. Everything you write stays on your iPhone. There is no cloud, no account, and no tracking. The app has no internet access at all, so your words simply never leave your device. Most note apps sell you the cloud. Nook does the opposite, and makes a promise you can actually verify: your notes are yours alone. PRIVACY TYPING Something you have not seen before. Turn on Privacy Typing and every word you write is blacked out on screen the moment you finish it, so no one can read over your shoulder on the train, in a meeting, or at home. The word you are currently typing stays faintly visible just for you. Tap the eye to reveal the whole note, and Nook remembers the setting per note. You choose the bar color and how hidden the current word stays. HIDDEN IN PLAIN SIGHT Protecting a page while you write it does little if your list still reads like a table of contents. Tap the eye on the home screen and every title and preview is covered behind glass. Bring them all back with Face ID, or uncover one note at a time, which is safer still. Everything covers itself again the moment you leave the app, so Nook never opens onto your own words. SOMEWHERE TO START Fifty one writing prompts, written by hand and grouped by what you might need: today, how you are, the people in your head, looking back, looking ahead, the quiet ones, the unsaid ones. They work on every device, with no model required. On devices with Apple Intelligence, Nook can also suggest a topic or reflect on an entry using Apple's on-device Foundation Models, with no network call at any point. WHY YOU WILL LOVE NOOK • Privacy Typing. Black out every word as you type, so no one reads over your shoulder. • Hide your notes. Cover every title and preview in the list, and bring them back with Face ID, all at once or one note at a time. • Truly private. No account, no email, no sign in. Open the app and start writing. • Lives only on your phone. No cloud and no servers. Your notes are stored locally and protected on device. • Locked for your eyes only. Choose Face ID, Touch ID, or your own passcode to open Nook. • Lockable folders. Put a passcode on any folder, and everything inside it stays private too. • Write beautifully. Titles, headings, bold and italic, plus a page background and text color for every note. • Beautifully organized. Nest folders as deep as you like, give them colors, pin what matters, and search everything in an instant. • Yours to back up. Export an encrypted backup to Files or AirDrop. You choose the passphrase, so only you can ever open it. • Prompts for empty days. Fifty one hand written prompts, plus on-device suggestions on Apple Intelligence devices. • Made for iPad. A two column desk, folders down one side and your pages beside them. • A widget that fits in. Quick capture from the Home Screen, following your own tint. • Calm by design. A warm, focused interface with a gorgeous light and dark theme. NO SUBSCRIPTION. EVER. Try everything free for 7 days. If you love it, buy us a coffee just once and Nook is yours forever. One payment of $5.99. No subscription, no account, no cloud. PRIVACY YOU CAN TRUST Nook collects NO data. There is nothing to leak, nothing to sell, and nothing to track. Your App Store privacy label says it plainly: Data Not Collected. Made with care by an independent couple. Buy us a coffee and keep your thoughts to yourself.

Screenshots

Mo Diary4 screens
Nook4 screens

Verdict

The call

The clearest difference is update cadence: Nook at fortnightly against Mo Diary's every 7 months. Mo Diary's advantage is rating (4.9 vs 4.5) and ratings volume (8 vs 2). On price, review sentiment, ads and in-app purchases 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. Mo Diary sells 1 one-off in-app purchase and Nook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mo Diary holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Mo Diary ships an update every 7 months, Nook fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Mo Diary versus Nook: the parameters behind the verdict, then further details
ParameterMo DiaryNook
PriceFreeFree
Rating4.9 (8 ratings) — better4.5 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better2
Update frequencyEvery 7 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size26 MB4 MB
Age rating4+4+
DeveloperSergey KrivorotkoAI Adviesbureau B.V.

Customer experience

Mo Diary

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nook

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Mo Diary

One-time1
  • Premium version$2.99
1 purchases

Nook

One-time1
  • Buy us a coffee$5.99

Questions

Is Mo Diary free?
Mo Diary is free to download, with in-app purchases available.
Is Nook free?
Nook is free to download, with in-app purchases available.
Which has better reviews, Mo Diary or Nook?
Mo Diary is rated higher. Mo Diary averages 4.9 out of 5 from 8 ratings, while Nook averages 4.5 from 2 ratings.
Do Mo Diary or Nook have ads?
Neither Mo Diary nor Nook shows ads.
Which is updated more often, Mo Diary or Nook?
Mo Diary ships an update every 7 months, and Nook fortnightly. Most recently, Mo Diary was updated on November 3, 2026 and Nook on October 31, 2026.

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