Everyone's to-do system fails eventually, and the app usually takes the blame for a problem that was really about habits. Still, the right app lowers the friction. The wrong one adds a subscription between you and writing down a thought.
Four apps cover the honest range of options on iPhone. The one already on your phone, a beautifully made paid-once option, a cross-platform workhorse, and one that blends tasks with a calendar. Prices described loosely: one is free, one is a one-time purchase, two are freemium with subscriptions. We'll flag which features sit behind the paywall where it matters, because that's usually the deciding detail.
Apple Reminders: free and better than its reputation
Apple Reminders carries a reputation as the boring option, and it's undeserved. The modern app has smart lists, natural-language entry that understands "tomorrow morning," location-based alerts, and shared lists for groceries and household chores.
Because it's built in, it syncs through iCloud with zero setup, works from the lock screen and Siri, and shows up as a widget without any third-party help. For errands, recurring chores, and shared family lists, it is genuinely all most people need.
The trade-offs show up past that. Reminders handles projects shallowly — nested lists exist but views for planning multi-step work are limited. There's no real tagging system to speak of, and if you live on Windows or Android too, you're locked to Apple devices for the full experience.
Things: one purchase, calm design
Things from Cultured Code is the app people mean when they say a to-do app feels calm. It has won Apple Design Awards, and the design shows: a Today view that never nags, an Upcoming timeline, and projects that nest into areas of responsibility. You pay once per device family, not every month.
Things is opinionated in ways that work. There's no social layer, no gamification, no marketplace of plugins. Just tasks, projects, headings, tags, and deadlines that behave predictably year after year.
The trade-offs are the flip side of that discipline. There's no free version beyond a trial, so you commit before you're sure. It's Apple-only — no web app, no Android — and collaboration is nearly absent. If you share tasks with a partner or team, look elsewhere. Everyone else, this is the one that stays pleasant a decade in.
Todoist: works everywhere
Todoist is the safest recommendation for anyone who needs their tasks on every device they own. Free to start, subscription for the full feature set, and apps or a web client on essentially every platform.
Its signature trick is natural language input: type "submit report Friday p1" and it parses the date and priority for you. Shared projects, comments, and a mature integration ecosystem make it the default for mixed-device families and small teams.
The trade-off is that the subscription line is drawn meaningfully high. Reminders — the core feature of a to-do app — sit behind the paywall, as do advanced filters and longer activity history. The free tier is fine for capture and basic lists, but many people end up paying, and Todoist counts on that.
TickTick: to-dos plus a calendar
TickTick is what you get when a to-do app decides to absorb half a productivity suite. Alongside the expected tasks and projects, you get a built-in calendar view, a Pomodoro timer, and a habit tracker. Free tier available, subscription for the good parts.
For people who want one app instead of three, that consolidation is genuinely useful. Seeing tasks and calendar events in a single view answers the question most to-do apps dodge: what fits in today?
The trade-off is scope creep and paywall depth. The calendar month view and more of the timer features sit behind the subscription, and the app has enough surface area that it can become a hobby in itself. If you want simple, Things is simpler. If you want everything in one place and don't mind a subscription, TickTick earns its keep.
Which one fits
- Free and already installed: Apple Reminders. Underrated, Siri-native, shared lists.
- Pay once, keep forever: Things. The calm, polished pick for Apple-only users.
- Every device on earth: Todoist. The cross-platform default, with a real paywall.
- Tasks plus calendar: TickTick. Consolidation with a subscription.
One honest note to close: whichever you pick, the list only works if you look at it. The app is the smallest part of the system.
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