Shared GTD for couples and families
Real GTD for you. A simple list for your partner.
You keep the household on track, and your partner won’t learn your GTD app. Shared lists fail for the same reason: both of you get the same tool. DuetFlow is one system with two views. You get your full system. Your partner gets a short list of what’s theirs, and every task says who is responsible: you, your partner, or both of you. Private tasks stay yours.
- Real GTD
- For two or more
- Mac, iPhone & iPad
- Works with your AI, if you want
Planned: 29.99 € once, shared with your family through Family Sharing, on Mac, iPhone, and iPad. No account, no server: your private tasks stay yours.
How it works
The same task. Two very different screens.
“Buy milk” is one shared task. On your Mac it sits in your full system, with its owners and its rule for when it counts as done. On your partner’s iPhone it is one line in a short list, finished with a tap.
Your Mac
Inbox, Today, projects, and who owns what
Your partner’s iPhone
Only their tasks, nothing to learn
The mechanic
Everything in it knows who it belongs to.
This is the part a shared list can’t do. Every task carries who it’s for, so “I thought you were handling that” stops happening.
For you
- Take out the trash. Responsible: you. Clearly yours, and everyone can see it’s taken care of.
- The grocery run. Responsible: both of you, completion “Any can complete”. Whoever gets to the store first checks it off for both.
- Pack for the trip. Responsible: both of you, completion “All must complete”. Each of you checks it off for yourself.
- The surprise you’re planning. Private. It leaves the shared household entirely; nobody else sees it, not even that it exists.
For your partner
- Only what’s theirs. One switch to “Mine” and the household noise disappears.
- Clear handoffs. When something is theirs, it says so, instead of a vague “can you maybe handle this?”
- Fewer reminders from you. Everyone sees whether a task is open or done, so you stop chasing and they stop being chased.
- No setup, no new account. You invite them; they accept with the Apple ID they already have. Their private things stay theirs, too.
Real GTD, shared
The GTD system you trust, with shared work that finally has an owner.
Inbox, Today, Upcoming, Waiting For, Someday, and sequential projects. Nothing gets dumbed down so the household can join.
Everything you’d expect from a serious GTD app, plus clear ownership for the household:
- Inbox triage that won’t let a task escape half-baked: a shared task can’t leave your Inbox until someone actually owns it, so nothing drifts into the void unassigned.
- Today that’s actually today: defer dates, due dates, planned dates, and always-available work computed into one honest list, with anything blocked or waiting kept out.
- Upcoming as a 30-day rolling view, Waiting For grouped by who you’re waiting on, Someday for the maybe-laters.
- Sequential projects that block themselves: the next step doesn’t surface until the one before it is done, so a multi-step project stays a chain, not a pile.
- Project-inherited metadata and recurrence, so you set it once and the system carries it.
The household gets one dependable responsibility layer, while your work and personal projects stay on a private side nobody else can see.
macOS — the next step stays locked until the one before it is done
For your setup
Fits the way you already run things.
Optional connections, all off until you turn them on.
Works with your AI assistant
A local MCP connection inside the Mac app: capture tasks, plan projects, and review next actions in a conversation. Separate permissions for private and household data, and the big changes wait for your approval in DuetFlow. No DuetFlow server, no cloud relay, no extra account. Your AI assistant may send the tasks you allow to its model provider, so choose the assistant and its permissions with that in mind. Requires DuetFlow running on a Mac.
Setup and compatibilityTasks from Home Assistant
The dishwasher is done, the filter is due, the bins go out tonight. DuetFlow signs in to your Home Assistant, picks up the open items of a to-do list you choose and turns them into shared household tasks. Check one off on either side and it is done on both. The connection goes straight between your device and Home Assistant, with no DuetFlow server in between.
How it worksWork and personal stay yours
Your work projects live next to the household in the same app, on a private side nobody else in the household can see. Sharing is per task, not all-or-nothing.
Why private means privateWe’re that household
Built by a household with exactly this split.
DuetFlow runs our own household every day, so the simple side gets tested by someone who never wanted a system.
DuetFlow didn’t come from a market study. We built it because our own household had exactly this split: one of us lived in a serious GTD setup and tracked everything that touched both of us; the other never wanted a system and just wanted their part handled. Every shared-list fix we tried died the same way: one of us stopped opening it.
So we built the thing that actually works for two asymmetric people, and we’ve run our real household in it ever since: the groceries, the appointments, the projects, the private work each of us keeps to ourselves. When something doesn’t survive a week in our own household, we cut it before it ever reaches you.
The two of us — the household DuetFlow runs every day.
Private by architecture
Private actually means private, because of how it’s built.
No DuetFlow server. No DuetFlow account beyond the Apple IDs you already have. The app is designed so its App Store privacy disclosure can say “Data Not Collected”: your task data never reaches us.
Many shared task apps put your “private” tasks on the same server as your shared ones and ask you to trust a toggle. DuetFlow doesn’t have that server. Your private tasks live in your own iCloud space; your shared household travels directly between the people in it through Apple’s sharing. Nothing routes through us, because there is no “us” in the middle. Optional connections to your AI assistant or Home Assistant run on your own devices and never through a server of ours, so this stays true.
For you, that means your work and personal projects stay genuinely yours. For your partner, it means the surprise they’re planning, or anything they’d rather keep to themselves, is theirs alone, with no DuetFlow server holding it.
Data Not Collected
Planned App Store privacy disclosure
Early access
DuetFlow is not public yet. Help decide what ships first.
Choose private-beta plus launch updates, or just the launch announcement. Research questions are separate and optional. No fake countdown, no reservation, and no purchase today.
Planned as one purchase for your family through Family Sharing. Final storefront price and availability will be confirmed before release. Planned consumer end price; no VAT shown under section 19 UStG.
- No per-seat pricing, so you’re not paying twice to share.
- No monthly fee that quietly outlives your interest.
- The part you actually need isn’t locked behind a “pro” tier.
- The features above aren’t a teaser. They’re the app.
Before you ask
The questions you are about to ask.
Will my partner actually use it?
That’s what DuetFlow is designed around. Your partner doesn’t set anything up or learn GTD: they accept your invitation with the Apple ID they already have and see only what’s theirs or open to anyone. Ticking something off takes one tap. In our own household, the one who never wanted a system uses that simple view every day. You still need to agree to put shared things in DuetFlow instead of chat. After that, it’s the easier option for both of you.
Can I connect DuetFlow to an AI assistant?
Yes, if you want to. DuetFlow for Mac includes an optional local MCP connection for compatible AI apps, so you can capture tasks, plan projects and review next actions in a conversation. It stays off until you turn it on. It runs inside the Mac app, with no DuetFlow server, no cloud relay and no extra account. You set separate permissions for private and household data. Consequential changes wait for your approval in DuetFlow, and the assistant can’t approve them for you. Turn it off and access stops; the key is deleted. It needs DuetFlow running on an awake Mac, so ChatGPT on the web or iPhone can’t connect directly. Your AI client may send the tasks you allow to its model provider. Local MCP setup and compatibility.
Does DuetFlow work with Home Assistant?
Yes, as an optional bonus. In DuetFlow, sign in to your Home Assistant and choose one of its to-do lists. DuetFlow fetches the open items and turns them into shared household tasks, like emptying the dishwasher or changing a filter. Checking one off on either side completes it on both. It stays off until you sign in, and the connection goes straight between your device and Home Assistant, with no cloud service of ours in between.
Is this real GTD or a toy couples app?
It’s real GTD: Inbox triage with blockers, Today, a 30-day Upcoming, Waiting For, Someday, and sequential vs. parallel projects with automatic blocking. It’s a system you can trust, and your partner only ever sees the simple part.
How is this different from Apple Reminders or a shared list?
Apple Reminders already supports shared lists and assigning an item to one participant, and it may be all you need for a few clear tasks. DuetFlow is for households that need a fuller responsibility model: one person responsible, several people with “Any can complete” or “All must complete”, or fully private, plus Inbox triage, Today, Waiting For, and sequential projects.
Can I keep work and personal tasks private?
Yes. Nobody else in your household can see your private tasks, not even that they exist, because a private task leaves the shared household entirely instead of hiding behind a toggle on a shared server. Sharing is per task, not all-or-nothing, so the surprise you’re planning and your own work projects stay yours alone.
Can I bring my OmniFocus data over?
Yes, on the Mac. DuetFlow imports your OmniFocus data in three steps:
- In OmniFocus, locate your .ofocus file or a .ofocus backup.
- In DuetFlow on Mac, choose Import and pick that file.
- Review exactly what will be created before anything is written.
DuetFlow makes a backup of your existing data first. (Re-importing the same backup can create duplicates, and import is Mac-only.)
Is there a subscription?
We plan to launch without a subscription: a one-time purchase of 29.99 €, shared with your family through Family Sharing on Mac, iPhone, and iPad. Final storefront price and availability will be confirmed before release.
Where does my data live, and is it safe if a device is offline?
Your data lives in your own iCloud, not on a DuetFlow server. Your private tasks stay in your iCloud space, and the shared household syncs directly between the people in it through Apple’s sharing. If a device is offline, your changes are kept locally and sync the next time it’s online.
Who is DuetFlow designed for?
Two or more adults sharing responsibility for a household or family: couples, families, shared homes. Usually one person enjoys organizing and runs the system, and the others just want to see their part. It isn’t workplace team or project-management software.
Do we each need an account?
No. Everyone uses the Apple ID they already have. No new account, and no password for anyone to forget.
Can I use DuetFlow today?
Not publicly yet. Join early access and confirm your email to hear about the private beta and public launch. Joining isn’t a purchase or reservation, and you can unsubscribe at any time.
What platforms?
Mac, iPhone, and iPad, all native. There’s no web, Android, or Windows version. It’s Apple-only by design, and iCloud handles sync.
One honest question
Missing something? What would you buy today?
Tell us what DuetFlow doesn’t do yet, or what would make you buy it the day it ships. One sentence is plenty. No account, no email needed.
Thank you. Your answer helps us decide what ships first.
Practical guides
Build a shared system that carries the handoff.
Clear comparisons and practical methods for shared household responsibility.
Choose a shared task app
Five capabilities that separate shared access from shared responsibility.
Read the guide →Apple Reminders for couples
When the built-in shared list is enough, and when a fuller system helps.
Read the comparison →Share household responsibility
Make ownership, next actions, and waiting work clear without keeping score.
Read the guide →Coming from another app? Compare DuetFlow with OmniFocus, Things 3, Todoist, or Any.do. Or see the best shared to-do apps for couples and five shared GTD apps side by side →
All of you, finally
The household no longer has to live in your head.
Keep your GTD system, give your partner a simple list, and make every handoff clear.
Join early accessChoose your updates, then confirm by email. Research questions stay optional.