Diary Book vs Nightink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diary Book
This app allows users to privately record their daily life, moods, and memories. It offers tools for creative journaling with customizable covers, stickers, and dynamic themes. Users can track their feelings over time and revisit past entries.
- Mood tracking with calendar expressions
- Customizable handbook covers
- Graphic stickers and collage materials
- Daily diary entries with pictures
- Dynamic home page themes
- Calendar date querying
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Diary Book is a lovely diary app that can record mood and keep a diary. Accumulate your feelings day by day, record your daily life, and keep good memories in Mood Diary. [Our Features] Mood Calendar: super cute little expression to record your daily mood; Hand Book Cover: create your own lovely hand book and collect your own life's hand book. Graphic Stickers: rich and lovely stickers, graphic collage materials, make your hand account more fresh and beautiful anytime and anywhere. Calendar: convenient for querying calendar dates. Graphic Diary: write a diary for the next day and add pictures. Dynamic theme: multiple home page dynamic theme styles to decorate your page. [Our Expectations] Writing morning records every morning, summarizing and reflecting every night can bring a sense of ritual to our daily life. When we open the hand account records in emotions, this whole record is "our own history". I hope you can look back on the past and record everything beautiful through Emotion. If you like Emotion and have any questions or comments in use, please leave your feedback. This subscription will be automatically renewed through your iTunes account, with the renewal fee deducted from your plan within 24 hours prior to the end of the current subscription period. You can manage or cancel automatic renewal at the Account Settings office at least 24 hours before the current subscription period ends. If your trial does not end, the remaining days will automatically expire after you start your subscription. To open a subscription, you agree to the following terms: The terms of service: https://junkeyd.github.io/posts/junke//fuwu Privacy policy: https://junkeyd.github.io/posts/junke/privacy
Nightink
This private diary app keeps your thoughts secure on your device with PIN or Face ID protection. It offers a dark theme, customizable writing styles, and features to reflect on past entries and future messages.
- Offline journaling
- PIN and Face ID lock
- Customizable writing styles
- Mood tracking
- Future sealed letters
- On this day feature
- Data export
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Nightink is a private diary that never leaves your phone. No ads. No account. No subscription. Write what you like, lock it behind a PIN or Face ID, and take everything with you whenever you want. YOUR WORDS STAY YOURS Entries are written to storage on your device. There is no server to send them to and no account to create. Export everything to plain text, Markdown or a full backup — free, always — because a diary you cannot take with you is not really yours. WRITTEN AT NIGHT Nightink is dark by default, because that is when people actually write. Choose from eleven covers, nine papers, five writing hands and six inks named after real fountain pen inks. A DAY IN ONE TAP Mark how the day went with a single tap — ink swatches, faces, weather or hearts. Add a title, a photo, tags and stickers if you want them. Or just the mark, if that is all today deserves. IT COMES BACK TO YOU On this day brings back the same date from every year before it. Your year in ink shows twelve months as a single picture, coloured by how each day felt. In numbers counts what you have built up — words written, your longest run of days, the weekday you write on most. SEAL A LETTER Write something to yourself and choose a date. It stays shut until then, and you get a nudge on the morning it opens. A year out, five years out, or the day before a birthday. PAY ONCE Writing, moods, search, reminders, On this day, In numbers and every export format are free forever. One payment adds the covers, papers, hands, inks, sealed letters and the year view. There is no subscription and there never will be. Made by ClearPath Advisory.
Screenshots
Verdict
The clearest difference is ads: Nightink at none against Diary Book's shown. Nightink also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 80%). Diary Book's advantage is ratings volume (313 vs 1) and iOS requirement (13.0 vs 15.0). On price, in-app purchases, monetization model 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
Both are free to download. Diary Book sells 3 in-app purchases, starting at $2.99 per month and Nightink sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Nightink holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Diary Book has 313 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Diary Book's written reviews are positive against 100% of Nightink's.
Diary Book ships an update every 3 months, Nightink every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Diary Book | Nightink |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (313 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 313 — better | 1 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 76 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 俊柯 吴 | Joshua Matesun |
Customer experience
Diary Book
Nightink
Bugs and requests
Diary Book
Reported bugs
2 issues- App crashes when accessing music notes
- App glitches and deletes unsaved writing
Requested features
2 requests- Make VIP cheaper
- Add a password option
Nightink
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Diary Book
- Monthly subscription3 Days trial$2.991 Month
- Subscription quarter3 Days trial$7.993 Months
- Pro version$7.99
Nightink
- Nightink, complete$9.99









