GrapNote vs OTN
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
GrapNote
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GrapNote is a streamlined list-management app that helps you organize your thoughts and ideas effortlessly. Key Features: ⢠Clean, intuitive interface ⢠Eye-friendly color scheme that's gentle even at first wake-up ⢠Full voice input support ⢠Organize ideas across five categories: Vision, Style, Mission, Plan, and Action ⢠Two-level inbox for unsorted items ⢠Quick list additions from text input ⢠Privacy-focused: all data stays on your device Perfect For: ⢠Capturing every idea and inspiration ⢠Managing your goals and action plans ⢠Instantly noting daily tasks and sudden thoughts ⢠Anchoring your project mindset and vision development Special Features: ⢠Folder classification for structured thinking ⢠Keyboard-optimized interface for efficiency ⢠Lightweight performance for quick launch-to-note workflow All your data remains exclusively on your device and is never transmitted externally. Start organizing your thoughts and bringing your ideas to life with GrapNote.
OTN
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OTN applies the mental model of a one-time password to your notes. Every note is born with a lifetime ā 10 minutes, an hour, a day, a week ā and quietly disappears when its time runs out. Most notes are one-time information: where you parked, a wifi password, today's to-do. They don't deserve permanent storage. OTN is built for exactly this ā write it in five seconds, let it go, and never watch your list pile up again. WATCH IT FADE Notes visually age as their time runs out, dimming and blurring until they dissolve. The list itself is the timer. KEEP ONLY WHAT MATTERS Tap a note to Keep it forever, or Release it now. Keeping is a deliberate act, not the default. NOTHING IS LOST BY ACCIDENT Expired and released notes rest unseen in the Archive for a while ā then they're gone for good. Restore anything before it vanishes. DESIGNED TO DISAPPEAR A dark, minimal, single-screen interface. No folders, no tabs, no clutter. Choose from three typefaces to make it yours. OTN PRO A single one-time purchase removes ads on iPhone and syncs your notes between iPhone and Mac via iCloud. Nothing piles up. As it should be.
Screenshots
Verdict
The clearest difference is in-app purchases: GrapNote at none against OTN's 1. GrapNote also leads on ads (none vs shown) and update cadence (daily vs every 3 days). On price and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. OTN sells 1 one-off in-app purchase. GrapNote asks for nothing beyond the download.
GrapNote ships an update daily, OTN every 3 days. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.
| Parameter | GrapNote | OTN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily ā better | Every 3 days |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, Mac ā better |
| Requires iOS | 15.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | RYU HARAGUCHI | SeokHui Lee |
In-app purchases
GrapNote
No in-app purchases
OTN
- OTN Pro$0.99









