Best Reminder App for iPhone (2026): 7 Options Compared

The best reminder app for iPhone is the one whose reminders you actually see. Apple already gives you one for free, so the real question is whether you need something else.

This guide goes through seven options and says plainly who each one suits and where it lets people down. There's no winner for everyone, but there is usually a right answer for you.

Quick answer

• Everything you own is Apple: stay with Apple Reminders.
• You dismiss reminders on reflex: try Due, which keeps nagging.
• You plan projects, not just errands: Things or Todoist.
• You want one app that does a lot: TickTick.
• You check WhatsApp far more than any other app: Mindie.

Apple Reminders: best if you stay inside Apple

Apple Reminders is free, built into iPhone, iPad, Mac and Apple Watch, and syncs through iCloud. Siri can add a reminder hands-free, it can remind you when you arrive somewhere, and lists can be shared with family.

It suits: anyone on an all-Apple setup who likes saying "Hey Siri, remind me...".

Where it falls short: it doesn't follow you to Android or Windows, and a notification is easy to swipe away and forget.

Due: best if you need to be nagged

Due is a native Apple app built around reminders that don't go quiet until you deal with them. Auto snooze keeps reminding you, a row of preset times sets a reminder in one tap, and it has countdown timers. It runs on iPhone, iPad, Apple Watch and Mac.

It suits: people who dismiss reminders without reading them.

Where it falls short: it's Apple only, so the nagging stops at the edge of your devices.

Things: best for planning projects on Apple devices

Things 3 is a carefully made planner with projects, areas, headings and checklists. It has apps for Mac, iPhone, iPad, Apple Watch and Vision Pro, and it's a one-time purchase per device type with free sync.

It suits: people who plan their work in structure and live on Apple devices.

Where it falls short: it's built for planning more than for catching a quick "remind me to..." in the moment, and it's Apple only.

Todoist: best for projects and shared work

Todoist has apps for phone, desktop and web, a quick add that understands natural dates, and projects, labels, priorities and shared projects for teams.

It suits: people who manage projects with other people.

Where it falls short: the list keeps growing, and when it does many people stop opening the app. Reminders then get lost among everything else.

TickTick: best if you want one app to do it all

TickTick packs in calendar views, a habit tracker, a focus timer and a priority matrix, on phone, desktop and web.

It suits: people who will use those extras and want them in one place.

Where it falls short: it does more than many people need, which can make a simple reminder feel like work.

Any.do: best if you want a full to-do app

Any.do is a to-do app for phone, web and desktop. It has a WhatsApp bot too, but per its help center that's on Premium, which its website lists at $4.99 a month billed yearly at the time of writing. See Mindie vs Any.do for the detail.

It suits: people who want one task app across devices and may use WhatsApp as one way in.

Where it falls short: WhatsApp is an add-on, and free users don't get it.

Mindie: best if you live in WhatsApp

Mindie has no app to open. It lives in WhatsApp, so you text it like a friend: "remind me Thursday at 6pm to pick up the dry cleaning". It replies with the time it understood and messages you in the same chat when it's due. You can send a voice note or a screenshot instead, reply "done" to close a reminder, "snooze 1 hour" to push it back, and turn on nag mode for the things you dodge.

It suits: iPhone users who check WhatsApp all day, and anyone with an Android phone or a Windows laptop too, because it works anywhere WhatsApp does.

Where it falls short: no location reminders, no shared lists, and no wake word like "Hey Siri". It's also paid after a 7-day free trial: $9 a month or $90 a year, with Apple Reminders free by comparison.

How to choose in two minutes

1. Count your devices. Android or Windows anywhere in your life rules out Due and Things.
2. Be honest about notifications. If you swipe them away, pick something that nags or that arrives in a chat you read.
3. Decide if you plan or just remember. Planners (Things, Todoist, TickTick) suit planning. Reminders suit remembering.

Then run a one-week test. Move only your next ten reminders to the app and see whether you acted on them.

FAQ

What is the best free reminder app for iPhone?

Apple Reminders. It's free, built in and syncs through iCloud, and for an all-Apple setup many people never need anything else.

Which reminder app keeps reminding you until you do it?

Due on Apple devices, with auto snooze. Mindie does the same in WhatsApp with nag mode, which keeps nudging until you reply done.

Is there a reminder app that works on both iPhone and Android?

Yes: Todoist, TickTick, Any.do and Mindie all work across both. Mindie does it through WhatsApp, so there's nothing extra to install. See also the best reminder app for Android.

For a wider view across devices, read the best reminder apps and who each one suits.