What is a one task at a time app?

A to-do app that deliberately shows you a single task and hides the rest of the list. The point is not minimalism for its own sake. Seeing thirty items forces you to re-choose between them every time you look, and that choice is where people stall — so these apps remove the choice by removing the view.

Is there a one task at a time app for both iPhone and Android?

Most of this category is single-platform, because the widget, menu bar and lock-screen behaviours these apps are built around are native features. One Task and 1 Big Task are Apple-only, Monotask is Android, MonoFocus is macOS. Nearer takes the other route and runs in the browser, so the same account works on an iPhone, an Android phone and a Windows laptop, and the card you were on syncs between them.

Is there a free one task at a time app?

Several of the native apps are free or a small one-off purchase, which is normal for single-purpose utilities. Nearer has no free tier — every account gets a 7-day trial of the whole app with no card required, then $49.99 per year, or $5.99 per month. That covers tasks, routines and flashcards rather than tasks alone.

Do these apps work for ADHD?

Several are built for it explicitly, and the underlying idea is sound: a long list asks you to make a prioritisation decision before you can start, and that decision is the expensive part. Hiding the list removes it. Which app suits you depends on whether your sticking point is starting, switching, or the list being hard to look at — they are different problems and the apps above solve different ones. None of this is medical advice.

Will hiding my list mean I forget things?

Hidden is not deleted. Every app here keeps the full list a tap away; the difference is that it is not the default view. In practice the failure mode people report is the opposite one — a list so visible that it stops registering at all.

One task at a time apps: six compared

We make one of the apps below, so a ranking from us would be worth very little. There isn’t one. Every app here agrees on the same idea and differs on the thing that decides whether you keep using it: where the surviving task ends up.

The short version

A long list makes you re-decide what to do every time you open it, and that decision is the part people stall on. Hiding the list removes the decision. The apps below all do that, then diverge: some put the one task in a widget, some in a menu bar, some behind a rule you cannot skip, and some in a full screen built to be easy to look at. Pick by which of those you will still be using in a month.

Why the list is the problem, not the app

Almost nobody arrives here because their task app lacked a feature. They arrive because they opened a list of thirty things, felt the weight of all thirty, and closed it again. Adding tags and filters to that list does not help, because the cost was never in finding the task — it was in being made to weigh it against twenty-nine others before you were allowed to start.

That is why this category exists and why it looks so uniform from the outside. The mechanism is the same everywhere: show one, hide the rest, remove the choice. The interesting question is not whether an app does that, but where it puts the one it shows you — because that is what decides whether it survives contact with a normal week.

Six apps, by where the task lives

On your home screen, as a widget

One Task

An Apple-ecosystem app built around a widget. You add a handful of tasks, and the current one is pinned to your Home Screen, Lock Screen or desktop where you cannot avoid seeing it.

Best for: People who already know what to do and lose the thread anyway. Putting the task where you look forty times a day solves that without opening anything.
The catch: Apple hardware only, and a widget is a display surface rather than a place to work. It shows the task; it does not give you anywhere to run a list of them.

Behind a rule that will not let you skip

Monotask

An Android app built on enforcement: you can hold only one active task, and you have to finish it or explicitly park it before the app will show you another. It runs offline.

Best for: People whose failure mode is task-switching rather than starting. The constraint is the product, and a soft version of it would not work on them.
The catch: Android only, and enforcement cuts both ways. Some days the honest answer is that the task you committed to is the wrong one, and an app that fights you on that becomes an app you close.

In a deliberately calm full screen

1 Big Task

An iOS app built with accessibility first, aimed explicitly at ADHD, autism, anxiety and low vision. One task fills the screen in a low-stimulus theme with nothing competing for attention.

Best for: Anyone who finds a standard task app hard to look at rather than merely cluttered. It is the one here that treats that as the problem to solve rather than a side effect of solving something else.
The catch: iOS only, and scoped tightly to the single-task moment. It is not trying to be the place your whole week lives.

In the same place as the rest of your life

Nearer

A card-based app that shows one card, full width, with the rest of the list out of sight. Finish it and the next arrives without you choosing it. The same mechanic runs your one-off tasks, your repeating routines and your flashcard decks, and it runs in a browser on any device.

Best for: People who want single-tasking to be how they work rather than a mode they switch into. Everything recurring and everything you are trying to learn goes through the same one-at-a-time flow, on a phone and a work laptop that need not share an operating system, and the card you were on follows you between them.
The catch: Ours, so weigh it accordingly. No free tier, and no native apps — it is a website you can install to your home screen, not something from an app store.

How Nearer compares with a full-size task manager

In your menu bar, always visible

MonoFocus

A macOS app that keeps the current task in the menu bar and nudges you back when you drift. Aimed at the stretch of desk work between opening the laptop and noticing an hour went missing.

Best for: Mac users who work in long focused sessions and want an ambient reminder rather than another window to manage.
The catch: macOS only, and at the time of writing still in beta, so treat its stability and its future accordingly.

Inside a focus session, with sound

Clarify

Pairs the single full-screen task with ambient audio and a timer, so the task and the focus block are one object rather than two apps you run side by side.

Best for: People for whom a timer is already load-bearing, and who currently run a focus app and a task app in parallel and would rather not.
The catch: You are buying a focus tool that holds tasks rather than a task tool. If the list itself is what you need to manage, this is the wrong half of the problem.

Platforms and behaviour are described in general terms because small apps change quickly. Check each app’s own site before deciding.

The thing most of them leave out

Nearly every app in this category treats single-tasking as a mode: a special screen you enter when you need to focus, holding a handful of items, separate from wherever your real list lives. That works until the mode ends. Then you are back in the thirty-item list you were avoiding, and the app that helped you for twenty minutes is not the app you plan your week in.

It is also why so much of this list is one platform deep. A widget, a menu bar item and a lock-screen rule are native behaviours, so an app built on them inherits the device it was built for. If your phone and your work laptop run different operating systems, most of these cannot follow you across the day.

Nearer takes the opposite bet. One card at a time is the only view there is, and it covers your one-off tasks, the routines you repeat and anything you are revising, all in a browser, so the same account opens on whatever is in front of you. If you recognise the pattern of switching task apps every few months and getting a good fortnight out of each, we go through why that keeps happening in why your to-do list feels overwhelming.

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Common questions

What is a one task at a time app?: A to-do app that deliberately shows you a single task and hides the rest of the list. The point is not minimalism for its own sake. Seeing thirty items forces you to re-choose between them every time you look, and that choice is where people stall — so these apps remove the choice by removing the view.
Is there a one task at a time app for both iPhone and Android?: Most of this category is single-platform, because the widget, menu bar and lock-screen behaviours these apps are built around are native features. One Task and 1 Big Task are Apple-only, Monotask is Android, MonoFocus is macOS. Nearer takes the other route and runs in the browser, so the same account works on an iPhone, an Android phone and a Windows laptop, and the card you were on syncs between them.
Is there a free one task at a time app?: Several of the native apps are free or a small one-off purchase, which is normal for single-purpose utilities. Nearer has no free tier — every account gets a 7-day trial of the whole app with no card required, then $49.99 per year, or $5.99 per month. That covers tasks, routines and flashcards rather than tasks alone.
Do these apps work for ADHD?: Several are built for it explicitly, and the underlying idea is sound: a long list asks you to make a prioritisation decision before you can start, and that decision is the expensive part. Hiding the list removes it. Which app suits you depends on whether your sticking point is starting, switching, or the list being hard to look at — they are different problems and the apps above solve different ones. None of this is medical advice.
Will hiding my list mean I forget things?: Hidden is not deleted. Every app here keeps the full list a tap away; the difference is that it is not the default view. In practice the failure mode people report is the opposite one — a list so visible that it stops registering at all.