dapter vs DIARYit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
dapter
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Apple Notes, if it could do math. Type rate = 45 on one line and rate × hours on the next, and the answer appears in the margin as you type. Every line that looks like a calculation resolves instantly. Everything else stays prose. No account. No servers of ours. Nothing to sign up for. WRITE MATH LIKE A SENTENCE • 20% of 300, 200 - 10% — percentages, markups and discounts the way you'd say them • 100 usd in eur, $50 + 20% — live currency rates, formatted as money • 10 km + 5 m in miles, 6 m / 2 s → 3 m/s — real unit algebra, not string replacement • today + 21 days, 3 days + 12 hours — dates and durations that count themselves A NOTE THAT ADDS ITSELF UP • Name a value and reuse it: rate = 45, then rate × hours three lines later • sum a block for budgets, receipts, invoices and quick tallies • round, sqrt, pi and the rest, for when a note needs to be a little smarter STILL A REAL NOTES APP Folders, pinned notes, search, a home-screen widget, Recently Deleted, and a quick scratch pad one tap from anywhere. Light and dark themes. Available in English, Russian and Kazakh — and the calculator understands all three, because the parser does, not just the interface. PRIVATE BECAUSE OF HOW IT'S BUILT Every calculation runs on your device. Your notes live in local storage on your iPhone, not in an account with us. All the math, unit conversion and currency work is free, forever — there is no calculation behind the paywall. BUILT FOR Freelance quotes and invoices. Monthly budgets. Travel money. Recipe scaling. Any moment you'd reach for a calculator and then forget what the numbers were for. DÄPTER PLUS Unlimited notebooks, and iCloud sync across your iPhones through your own Apple account. Monthly, yearly, or a one-time lifetime unlock — pay once and you're done. Plus is what keeps däpter independent: no ads, no investors, no data sold. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DIARYit
A private, offline daily journal app that allows you to write one entry per day and revisit past entries through a calendar. Your entries are kept on your device and backed up via iCloud.
- Daily journal entries
- Calendar navigation
- Color-coded date marking
- Continuous record of entries
- Private and offline design
- iCloud backup integration
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Write what matters. Keep your days in a single stream. DIARYit is a private daily diary with one entry per day and just enough room for what you want to remember. A LITTLE SPACE. A CLEARER FOCUS. You don’t need to record everything to remember something. Each day gives you a deliberately limited writing space. Capture a moment, a thought, or what the day meant to you, without a page you feel obliged to fill. YOUR LIFE, IN ORDER Write in the present. Let the past stay as it was. Once a day has passed, its entry can no longer be edited. This is intentional. Your diary keeps what you wrote then, not what you might write now. The days ahead are visible, but you cannot write in them until they arrive. The days behind you remain there to revisit. Looking back is your choice. LOOK BACK WITH CONTEXT Find days with writing in the calendar and jump directly to an entry. Press and hold a date with writing to mark it green, yellow, red, or leave it unmarked. Give each day a meaning of your own. PRIVATE. SIMPLE. YOURS. No account to create. No ads, social features, or streaks to maintain. Your writing is stored on your device. Write and read available entries offline, in a quiet interface that follows your device’s light or dark appearance. Your entries can be included in your iPhone’s iCloud Backup when backup is enabled for DIARYit. This is device backup, not live syncing between devices. START WITH TODAY Write today’s entry and read your most recent past entry for free. An optional Access subscription unlocks your full history. Scroll through earlier days or return to an entry from the calendar. Choose monthly or yearly. Your saved entries are not deleted when your subscription ends. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
dapter and DIARYit are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. dapter sells 3 in-app purchases, starting at $0.99 per month and DIARYit sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
dapter ships an update every 10 days, DIARYit every 3 weeks. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.
| Parameter | dapter | DIARYit |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Anuar Shaidenov | Seunghoon Baek |
In-app purchases
dapter
- Dapter Plus Monthly3 Days trial$0.991 Month
- Dapter Plus Yearly3 Days trial$4.991 Year
- Dapter Plus Lifetime$9.99
DIARYit
- Monthly$3.991 Month
- Yearly$34.991 Year









