Email, calendar, tasks, and notes in one app. With AI that turns context into action.

Synapser can be the one app you open for your email, calendars, and tasks. Everything you do in Synapser — like replying to an email, updating an event, or completing a task — syncs back to the original provider, keeping your connected accounts up to date.

You choose which accounts to connect and which permissions to grant. Google and Microsoft use their secure authorization process, so Synapser never receives your account password. Apple Calendar, Reminders, and Contacts connect through permissions on your iPhone, while iCloud Mail uses an Apple-generated app-specific password. You can disconnect any account at any time from Synapser’s settings.

Yes — connect as many accounts as you need and see them all in one view. For example: two Gmail accounts, a work Outlook, and a personal one.

Yes. Search across your connected email, calendars, tasks, notes, and contacts at once, with results from all your accounts brought together in one place. You can also narrow your search to a single category or use familiar operators such as from:, has:attachment, and before:.

Seconds. Providers notify Synapser the moment something changes, and the update is pushed straight to your iPhone.

Signing out just ends your session on that device — nothing is deleted, and everything is there when you sign back in. Disconnecting a connected account is different: the data synced from it is deleted from Synapser. And if you delete your Synapser account, everything goes with it — immediately and irreversibly — with a full data export available beforehand.

Synapser connects the context across your email, calendar, and tasks to suggest useful next steps — from creating a task with a title, due date, and subtasks when needed, to preparing a meeting with the time, attendees, and location already filled in.

No. Synapser suggests actions, but you stay in control. You can review, edit, accept, or ignore each suggestion before anything happens.

Your personal data is used to provide Synapser’s features and keep your connected accounts in sync. We don’t sell your personal data, monetize your content, or use your data to train AI models. Some data is processed by trusted service providers where needed to deliver Synapser’s services, including AI suggestions if you choose to enable them. We take responsibility for how your data is handled, and you can find full details in our Privacy Policy. You can manage your privacy preferences and connected accounts at any time in the app’s settings.

Currently, Synapser is available for iPhone only. We’re focused on making the iOS experience great before expanding to other platforms.

Yes. Everything already synced stays readable on a plane or underground, and anything you change is queued and sent the moment you have a connection again.

Synapser’s interface is in English, while AI suggestions can follow the language of the content they’re based on. For example, a note in Italian can generate a reminder in Italian, while a German email can generate a task in German.

Synapser is a subscription with a 14-day free trial, billed through the App Store — open the app and you’ll see the exact price before you subscribe.