Tidemark
Notes, calendar & promises · iOS, iPadOS, macOS, watchOS, iPhone Duo
Notes and a calendar on one moving line, and the promises you write down tracked to the day they are due. For iPhone, iPad, Mac and Apple Watch. $2.99, coming soon.
One payment
- · Files stay on the device
- · Works offline
Tidemark puts your notes and your calendar on one moving line: the past above it, the future below, and now as a line that moves through your day. When a sentence holds a promise, like "I'll send the deck by Friday", Tidemark makes it a dated thread, and each evening a twenty-second review lets you mark it Kept, Move it or Release it. A meeting's note opens two minutes before it starts, with open items from the last meeting already listed. $2.99 for iPhone, iPad, Mac and Apple Watch.
Your work stays on your device.
Photographs, documents, and notes stay on the device.
One payment.
Buying Tidemark is a single payment. There is no monthly bill.
Zero tracking, zero noise.
No analytics SDKs, no behavioral telemetry, no advertising trackers, and no unsolicited notifications. The tool opens when you need it and leaves you alone when you do not.
- Platform iOS, iPadOS, macOS, watchOS, iPhone Duo
- Category Organize · Notes, calendar & promises
- Purchase Model $2.99, paid once (Perpetual single-user license)
- Authored Looks Timeline · Threads / First Page / Close the Tide / Undertow / Low Tide
- Engine & Pipeline SwiftUI · iPhone, iPad, Mac & Apple Watch · EventKit · On-device detection · Private iCloud sync
- Network Policy Strictly local · Zero outgoing network calls
- Privacy Model Zero tracking, zero analytics, zero account registration
- Studio Sequence 32 / SixTwelve Studio
Shaped through your daily hands.
We refine Tidemark continuously from user observations. If you encounter friction or envision an improvement, transmit an observation straight to the builder.
How much does Tidemark cost?
Tidemark costs $2.99 as a single one-time purchase. There is no subscription, recurring charge, or maintenance fee.
What devices does Tidemark support?
Tidemark runs natively on iOS, iPadOS, macOS, watchOS, iPhone Duo. It is built with platform-native frameworks for high speed, low battery draw, and full offline reliability.
Where is my data and content saved?
Everything stays on your own device. Tidemark saves all files, photographs, and records to your local disk or photo library. SixTwelve Studio runs no telemetry servers and never sees your content.
How do future updates work?
All maintenance updates, security patches, and feature additions for this major version are included with your initial purchase at no additional charge.
Tell me when Tidemark ships
One email on launch day with the launch price. Then the weekly workshop letter, which you can leave at any time.
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