LastWhen vs To Do Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LastWhen
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LastWhen answers the question you keep asking yourself — "When did I last...?" Whether it's a doctor visit, haircut, car service, temple visit, or catching up with a friend — LastWhen helps you track recurring life events so you never lose track again. Simple to log. Meaningful to reflect on. TRACK ANYTHING THAT MATTERS - Health — doctor visits, medications, symptoms - Personal Care — haircut, dental checkup, skincare - Travel — trips, visa renewals, passport - Spiritual — temple visits, fasting, rituals - Social — friends, family calls, meetups - Home — repairs, cleaning, maintenance - Finance — bills, investments, renewals LOG IN SECONDS Tap once to log any event. Back-date entries if it already happened. Add optional notes for context. REMINDERS THAT RESPECT YOU Set a reminder threshold — get notified only when it's been too long. No daily nagging. Just a gentle nudge when it matters. PRIVATE BY DESIGN All data stays on your device. No account required. No data collected or shared. Ever. LASTWHEN PRO Unlock unlimited events, full history, custom categories, insights, backup reminders and all future features — with a single one-time purchase. No subscription. Ever.
To Do Machine
This productivity app allows users to fully customize their to-do list and workflow using natural language commands. It offers AI-powered task creation, project management, and calendar integration, syncing seamlessly across Mac and iOS devices.
- Natural language interface for customization
- AI-powered task creation and triage
- Multiple project views (list, kanban, calendar)
- Customizable statuses, fields, and automations
- Two-way calendar sync (Apple/Google)
- Real-time sync across Mac and iOS
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The only productivity app you design yourself. Most to-do apps make you bend to their rules. To Do Machine flips the workshop on its head — open the back panel, swap the parts, paint it your color. Talk to it in plain English and watch your task inbox, your projects, and your entire workflow rebuild themselves in real time. Built natively for Mac and iOS. Perfectly in sync. — WHO IT'S FOR — For the people who've tried every to-do app and bounced off them all. For the ones who keep building systems in Notion, then abandoning them. For anyone whose brain works a specific way and is tired of apps that don't. To Do Machine isn't another opinionated workflow. It's a workshop where you build the one that fits you. — DESIGN IT YOURSELF — Tell To Do Machine what you want and it remakes the app around you. "Make the inbox darker and put due dates on the right" — done. Switch any project to list, kanban, calendar, focus, or blueprint view. Invent your own statuses, fields, and automations, project by project. Every tweak syncs to all your devices instantly. — AI THAT DOES THE TYPING — Just say what's on your mind. To Do Machine writes the tasks, breaks them into projects, sets reminders, and finds time on your calendar — no tapping the + button. "Plan my Q3" → full project with milestones, weekly check-ins, and time blocks. Auto-triage your inbox: priority, due dates, parent project. A daily standup that drafts your day before you've finished your coffee. — CALENDAR IN, DAY OUT — Connect Apple or Google Calendar and your tasks thread themselves between your meetings. Two-way sync with Apple or Google Calendar. Time-blocking that respects your meetings, focus blocks, and breaks. Move a meeting and your tasks move with it. — INSTANTLY SYNCED BETWEEN iOS AND MAC — Tasks, projects, and calendars sync in milliseconds. Custom layouts and themes travel with you. Redesign your inbox on Mac at lunch — it's waiting on your iPhone by the time you stand up. Assembled in Brooklyn, NY. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: To Do Machine at none against LastWhen's 1. To Do Machine also leads on update cadence (every 2 weeks vs every 2 months). LastWhen's advantage is iOS requirement (15.1 vs 17.6). On price, 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. LastWhen sells 1 one-off in-app purchase. To Do Machine asks for nothing beyond the download.
LastWhen ships an update every 2 months, To Do Machine every 2 weeks. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.
| Parameter | LastWhen | To Do Machine |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, Mac |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 37 MB | 30 MB |
| Age rating | 4+ | 17+ |
| Developer | U14 LABS LLP | Electric Lantern LLC |
In-app purchases
LastWhen
- LastWhen Pro$2.99
To Do Machine
No in-app purchases









