DayPlan vs Cairn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DayPlan
Organize your day with simple task management, habit tracking, and countdowns. Features include daily, weekly, and monthly views, a baby log, and a shopping list. Voice input and natural language processing make planning effortless.
- Daily, Weekly, Monthly task views
- Habit tracking with streaks
- Countdown timers for events
- Optional baby log with nursing timer
- Dedicated shopping list
- Voice input and natural language processing
- Backup and sync across devices
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DayPlan keeps your day simple. Today, Tomorrow, Week, and Month views give every task a clear home — plus habits, countdowns, a baby log, and a home-screen widget, without complex project management. DAILY PLANNING Add tasks to Today, push to Tomorrow, or park them in Week or Month. Unchecked tasks carry forward each morning. Set daily defaults and recurring tasks that appear fresh every day or week. HABITS & STREAKS Mark a task as a daily habit and DayPlan tracks your streak, longest run, and completion rate automatically. COUNTDOWNS Count down to birthdays, trips, and deadlines — see exactly how many days are left. WEEKLY 7-DAY VIEW Monday through Sunday as day cards. Tap a day to add tasks to it — Wednesday's gym stays on Wednesday. BABY LOG Track your newborn's feeds, diapers, pumping, and growth in one optional tab — with a hands-free nursing timer and camera stool-color check. Off by default; turn it on in Settings. SHOPPING LIST A dedicated list separate from your tasks. Check items off and share in a tap. DIARY A Diary and Notes section for each day, auto-saving as you type. Scroll back 30 days or forward 6 months. VOICE INPUT Tap the mic on any task or diary entry and just speak — DayPlan transcribes instantly. NATURAL LANGUAGE "Call dentist tomorrow" routes to Tomorrow; "gym next week" goes to Week. BACKUP & SYNC Start with no account. Sign in with Apple or Google to back up and restore on any device. Export anytime. SIMPLE BY DEFAULT No account. No onboarding. Install and start — in light or dark mode.
Cairn
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Cairn (차곡차곡) is a calm, anonymous-first todo app — every core feature works without an account. Like the small stones stacked into a cairn on a quiet trail, line up today's tasks one by one with clarity. ■ Core features - Anonymous by default: no sign-up, no transmission. All data stays on your device. - Inline markers: type @, #, !, * to set date, time, importance, and repeat in one line. e.g. "@tomorrow #3pm meeting", "*every-monday run". - Two-way swipe: left for reschedule / favorite / repeat. Right for duplicate / move group / delete. - Groups and color labels: organize by work, personal, fitness — at a glance. - Notifications with quiet hours: push reminders that auto-defer to the next morning during quiet hours. - Stats dashboard: weekly / monthly / yearly completion, 14-day sparkline, average completion time. - Backup & restore: JSON / CSV / Markdown export and import. Move devices safely. - Dark mode and three themes (Tica, Tally, Nudge). - English / Korean auto-detected. ■ Tracks - Anonymous (default): full core, on-device only. - Pro: ad-free — one-time purchase, yours forever. ■ What we don't collect No location, contacts, photos, microphone, camera, or health data. In anonymous mode, not a single byte leaves your device. ■ About Sobok — building small tools that add quiet order to daily life. Contact: admin@sobok.kr Privacy / Terms: https://sobok.kr/carin/legal/terms
Screenshots
Verdict
The clearest difference is in-app purchases: DayPlan at none against Cairn's 3. DayPlan also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Cairn sells 3 in-app purchases, starting at $1.99 per month. DayPlan asks for nothing beyond the download.
DayPlan ships an update every 3 days, Cairn every 5 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.
| Parameter | DayPlan | Cairn |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Nimesh Rijal | Heajung Yoo |
In-app purchases
DayPlan
No in-app purchases
Cairn
- Cairn Pro Monthly$1.991 Month
- Cairn Pro yearly$12.991 Year
- Cairn Pro - Ad-free forever$0.99









