OnTimer vs Walnut
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnTimer
This app automatically creates persistent alarms for all your calendar events, ensuring you never miss a meeting. It also provides departure time alerts for in-person meetings based on real-time traffic conditions.
- Automatic calendar event alarms
- Persistent, non-dismissible notifications
- Time to leave alerts with traffic
- Customizable transportation modes
- Recurring event controls
- Do Not Disturb integration
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“Are you joining the meeting?” If you've ever gotten that message while you were sidetracked by an email, a task, or one more thing, OnTimer is for you. Calendar notifications are easy to swipe away. OnTimer turns your calendar into real alarms, so a missed notification doesn't become a missed meeting, or a missed flight. Connect your Google, Outlook, or Apple Calendar once, and OnTimer does the rest: a persistent alarm when it's time to act, a Time to Leave alert when it's time to head out, and now Time to Fly for every flight on your calendar. NEW: TIME TO FLY Every flight on your calendar gets an alarm when it's time to leave for the airport. OnTimer recognizes flights your email and travel apps add to your calendar, or just put the airport code, like JFK, in an event's location. Your leave time combines airline-recommended arrival times (2 hours domestic, 3 hours international) with your drive, parking, and whether you're checking a bag. Connecting flights don't get a second alarm, and you can adjust any flight from its card. CUSTOM ALARM SOUNDS Make your alarms your own. Choose a sound for your main alarm and another for Time to Leave alerts, or give one event its own sound. Preview every sound for free. More sounds are coming soon. HOW IT WORKS OnTimer uses your calendar as the source of truth. When your schedule changes, your alarms stay in sync, so you never create or maintain alarms by hand. Unlike notifications that disappear after a swipe, OnTimer's alarms keep reminding you until you dismiss them. High Alert can ring through Silent mode and Focus on iOS 26.1 and later. Prefer quieter alerts? Medium Alert respects Focus. TIME TO LEAVE ALERTS For events with a location, OnTimer watches traffic and tells you exactly when to head out. Choose your travel mode and add a departure buffer. ESPECIALLY HELPFUL IF YOU • See calendar reminders and still leave late • Get focused and lose the last few minutes before a call • Need alarms that keep going until you act • Use more than one calendar • Experience time blindness or notification overload FREE • Connect one Google, Outlook, or Apple Calendar • Automatic alarms for every calendar event • Persistent alarms with High and Medium Alert • Time to Fly airport alarms • Recurring event controls • Focus & Silent Mode settings PREMIUM • Connect multiple calendars across work and personal life • Time to Fly live traffic updates and a night-before heads-up • Time to Leave alerts with live traffic • Early Warning alerts before your main alarm • Custom alarm timing for individual events • Custom alarm sounds • Business Hours • 7-day free trial on the annual plan OnTimer works quietly in the background, so you never have to think about setting alarms again. Download OnTimer today and never be late again. Some features require a paid subscription. Monthly and annual subscription options are available in the app. Pricing varies by region and is shown before purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Walnut
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Walnut is your second memory — a private place to keep the documents, photos, videos, links, notes and cards you don't want to lose, and to find them again in seconds. Everything happens on your device. Walnut reads your images and PDFs with on-device text recognition, transcribes audio and video locally, and indexes it all for instant full-text search. There's no account, no server, and no third-party AI — your information never leaves your phone unless you choose to back it up to your own iCloud. CAPTURE ANYTHING • Photos, videos, documents (PDF, docs, spreadsheets), links, voice notes • Multi-image collections kept together • Handwritten and printed text recognised on-device FIND IT INSTANTLY • Full-text search across recognised text, transcripts, names and notes • Organise with channels (folders) and pin what matters • Sort and filter the way you think STAY ON TOP OF IT • Due-date reminders with local notifications • Smart suggestions surface renewal/expiry dates automatically PRIVATE BY DESIGN • Fully on-device — no account, no backend, no analytics, no ads • Optional App Lock with Face ID • Optional backup to your own iCloud — your data, your control Walnut keeps the everyday things you need — IDs, receipts, warranties, medical records, travel documents — organized, searchable and private.
Screenshots
Verdict
The clearest difference is in-app purchases: Walnut at none against OnTimer's 2. On price, update cadence, ads 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. OnTimer sells 2 in-app purchases, starting at $7.99 per month. Walnut asks for nothing beyond the download.
OnTimer ships an update every 5 days, Walnut every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | OnTimer | Walnut |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (23 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 160 MB |
| Age rating | 4+ | 4+ |
| Developer | Ethan Garr | Rajesh Goel |
In-app purchases
OnTimer
- OnTimer Pro (Monthly)$7.991 Month
- OnTimer Pro (Yearly)7 Days trial$49.991 Year
Walnut
No in-app purchases









