01
Onboard people once.
Invite a teammate, assign their role and choose the apps and workspaces they need from one place.
One membership. Deliberate access.
For teams using the ShellStack suite
Run the suite, not four separate admin setups. One team. Every app.
ShellStack is the organisation layer for Tides, TurtleTime, Kraken and Shelly. Set up your team, workspaces, app access and billing once, then let every product start from the same place.
IdentityInvited onceWorkspacesScoped accessBillingOne subscription
ShellStack
Shared identity, access and billing
Tides
Plan work
TurtleTime
Track time
Kraken
Grow knowledge
Shelly AI
Run with AI
One organisation across the suite
Why ShellStack
One organisation. One setup. Every app ready.
The products handle the work. ShellStack handles the organisation behind it: who belongs, what they can use, where they work and how the suite is paid for.
02
Keep work in the right hands.
Give clients, projects and teams a clear workspace home while access stays scoped as the suite grows.
Shared workspaces. Clear boundaries.
03
Run the commercial side once.
Manage plans, seats and subscription details for the whole suite instead of maintaining a separate account for every app.
One bill. A clearer view of spend.
The work suite
Every product starts with the organisation already set up.
Each product stays focused on its work. ShellStack carries the people, workspaces, access and plan that make the suite feel like one system.
Product / 01
Tides
Project management and kanban
Plan projects, organise boards, move tasks through statuses and keep client work visible.
- Projects and boards
- Task assignments
- Tags, clients and statuses
- TurtleTime task tracking
Product / 02
TurtleTime
Time tracking and reporting
Record time against clients and projects, review reports and understand where team effort goes.
- Start and stop timers
- Manual time entries
- Client and project tracking
- Team reporting
Product / 03
Kraken
Documents and team knowledge
Create structured documents, connect resources and keep shared knowledge close to the work.
- Workspace documents
- Draft and review workflows
- Linked resources
- Revision history
Product / 04
Shelly AI
Your AI teammate hub
Shelly joins the suite as a teammate: crews take on work, follow skills, run tools and report back with your approval.
- Crews with roles and instructions
- Skills as reusable playbooks
- Tool runs with approvals
- Workspace-scoped memory
What every app shares
The foundations that keep the suite from becoming a pile of tools.
ShellStack gives every product the same organisation context, so your team does not need to rebuild the essentials each time they adopt another app.
Identity
One ShellStack account signs people into the apps they are allowed to use.
Workspaces
Personal and team spaces keep clients, projects, time and app data in the right place.
Access
Invite teammates, assign roles and decide who gets Tides, TurtleTime, Kraken or Shelly.
Connected work
Shared context lets apps work together, including Tides task time powered by TurtleTime.
Billing
Manage plans, seats and subscription details once for the whole product suite.
Room to grow
New ShellStack products can join the same user, workspace and billing layer.
How it works
Set the rules once. Let every product follow them.
Choose the people, roles, product access and workspaces from a single organisation. ShellStack carries that context across the suite while each product protects the work it owns.
Create your organisationOrganisation
- Team membership
- Roles and workspace access
- Organisation settings
App suite
- App access by member
- Single launch into products
- Tides and TurtleTime tracking
- Shelly workspace access
- Cross-app integrations
Operations
- Plan management
- Seat limits
- Billing settings
- Integration policy
Journal
Notes on the tools we did not buy.
Open source, ClickUp, Linear, Harvest, Notion. Written like a person who had to pick.
Suite
You can read this software. That is the point.
Linear is closed. Jira Cloud is someone else’s attic. Plane is open, and it is still one product. ShellStack is an open suite you can run.
Linear
Jira Cloud
Plane
Tides
Linear is simple. Jira is detailed. We needed a third thing.
Linear wins speed. Jira wins process. Trello is a wall. Tides is a simple board with the extra detail a client project actually has: hours, a document, an inbox for the agent.
- Linear
- Jira
Trello
TurtleTime
Toggl is a stopwatch. Harvest invoices. We wanted both, on the card.
Toggl is the nicest timer. Clockify is the cheapest seats. Harvest still owns the path from hour to invoice. TurtleTime is that path, except the project is the Tides card.
Harvest
Toggl
Clockify
Pricing
Start small. Keep the suite under one roof.
Start free with one workspace, then add seats and capacity as your team grows across the ShellStack suite.
Free
A simple start for one workspace.
$0/ user / month
Per user, billed yearly, 30% off
- 1 workspace
- Up to 2 members
- 200 monthly AI credits
- 5 MB uploads
- 100 public documents
Pro
For teams that run the suite together.
$5.60/ user / month
Per user, billed yearly, 30% off
- 2 workspaces
- Up to 30 members
- 800 monthly AI credits
- TurtleTime, Tides and Kraken
- Integrations and shared clients
- 25 GB Kraken storage
- 100 MB file uploads
AI Plus
Everything in Pro, with Shelly AI on the team.
$14/ user / month
Per user, billed yearly, 30% off
- Everything in Pro
- Shelly AI Hub: crews, skills, tools
- Autonomous runs with approvals
- Workspace-scoped crew memory
- 2,000 monthly AI credits
- Early access to new AI tools
Enterprise
For organisations with advanced needs.
Custom
Annual billing only
- Everything in Pro
- Custom workspace limits
- Custom member limits
- Unlimited monthly AI credits
- SSO / SAML
- Invoice and PO billing
- Uptime SLA
Start here
Set up the organisation once. Let every app start ready.
Create an account, invite your team and choose the apps and workspaces each person can use.