MonoTodo vs Cairn
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MonoTodo
This app helps you manage your time by focusing on a single daily goal. It displays the remaining time to achieve your objective, providing real-time progress. Utilize statistics to maintain motivation and a sense of accomplishment.
- Real-time countdown to goal achievement
- Focus on a single daily objective
- Statistics for motivation
- Simple and intuitive interface
- Track progress and build accomplishment
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λͺ¨λ Έν¬λλ μκ° κ΄λ¦¬μ μ§μ€νλ μ¬νν μ±μ λλ€. μ€μ ν λͺ©νμ λλ¬ν λκΉμ§ λ¨μ μκ°μ μ€μκ°μΌλ‘ νμΈν μ μμ΅λλ€. ν루μ νλμ λͺ©νλΌλ κΌ μ΄λ£¨κ³ μΆμ λΆλ€μ΄ μ¬μ©νλ©΄ μ’μ΅λλ€. λλΆμ΄, ν΅κ³ κΈ°λ₯μ ν΅ν΄ κΎΈμ€ν μ±μ·¨κ°μ λλΌλ©° λκΈ°λΆμ¬λ₯Ό μ μ§ν μ μμ΅λλ€.
Cairn
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Cairn (차곑차곑) is a calm, anonymous-first todo app β 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. β 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 β 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. β Tracks - Anonymous (default): full core, on-device only. - Pro: ad-free β one-time purchase, yours forever. β What we don't collect No location, contacts, photos, microphone, camera, or health data. In anonymous mode, not a single byte leaves your device. β About Sobok β 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 ads: MonoTodo at none against Cairn's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. MonoTodo sells 1 one-off in-app purchase and Cairn sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
MonoTodo ships an update weekly, Cairn every 5 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | MonoTodo | Cairn |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Weekly | Every 5 days β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.0 | 15.0 |
| Further details β not scored | ||
| Size | 53 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Jichan Hwang | Heajung Yoo |
In-app purchases
MonoTodo
- λͺ¨λ Έν¬λ ν리미μ (κ΄κ³ μꡬ μ κ±°)$1.99
Cairn
- Cairn Pro Monthly$1.991 Month
- Cairn Pro yearly$12.991 Year
- Cairn Pro - Ad-free forever$0.99
