공책 vs DayPlus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
공책
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Write a diary every day, and your teacher writes back in red pen.Remember those short notes your teacher used to leave in your childhood diary?Gongchaek brings that warm experience back to life as a picture diary app. Record your day in words and drawings, and the next morning, your teacher's reply will be waiting for you.Key Features Daily Diary — Capture your day with writing and hand-drawn sketches Teacher's Reply — A red-pen response arrives every morning at 10 AM Mood & Weather — Log how you felt and what the weather was like Calendar View — See all your diary entries at a glance Easy Sharing — Share your favorite entries as images Write each night, read your teacher's reply each morning. Small habits become precious memories.
DayPlus
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Record and manage your whole day with DayPlus. To-dos, money, journal, and notes — all the apps that used to be scattered around, now brought together in one. From the weather you check in the morning to the journal you write at night. ■ To-Dos · Categories for personal, work, health, birthdays, and anniversaries · Lunar calendar support when adding birthdays · Repeating schedules, reminders, and priority flags · D-Day countdown & count-up with milestones · See your whole year at a glance in the yearly calendar ■ Money · Income, expenses, and transfers (savings) at a glance · Manage payment methods — bank accounts, credit/debit cards, cash, and prepaid · Upcoming card bills based on statement and payment dates · Net worth and asset overview — savings, deposits, investments, real estate, and loans · Daily, weekly, and monthly budgets with savings rate, plus weekly and monthly reports and charts · Fixed-expense management · Cut waste by tracking grocery expiration dates · Take on saving challenges to reach your budget goals ■ Journal · Capture your day with mood, weather, and photos · Switch freely between calendar and list views · Keyword search · Passcode lock to keep entries private ■ Notes & Reading · Notes with folders, pinning, and checklists · Time Capsule — schedule a note to your future self · Log star ratings, authors, and thoughts on a reading calendar ■ Home Dashboard & Widgets · Today's weather, hourly forecast, and air quality · Today's to-dos, budget ring, and your "to buy today" list · Banners for upcoming birthdays and anniversaries · Home screen widgets — money, to-dos, and a weekly spending chart ■ Make It Yours · Cozy themes, dark mode, and seasonal limited-edition themes ■ Peace of Mind · Offline-first — works great even without a connection · Back up and restore all your data as a single file (zip) · Your precious records stay safe on your device Start your day with DayPlus.
Screenshots
Verdict
The clearest difference is ads: 공책 at none against DayPlus's shown. On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
공책 ships an update every 10 days, DayPlus every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | 공책 | DayPlus |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | SAHWI KIM | YOUMGMI HAN |
In-app purchases
공책
No in-app purchases
DayPlus
No in-app purchases









