Zero-knowledge
We do not hold the client keys needed to decrypt readable workspace content
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500+ professionals
Trusted by privacy-focused teams
Quick verdict.
Choose SealTask if privacy and security are non-negotiable. True end-to-end encryption means even we can't access your workspace content. Before any PHI use, SealTask must expressly agree in writing. Where HIPAA applies, SealTask and the customer must execute a HIPAA-compliant BAA before use. Choose ClickUp if you need an all-in-one platform with extensive features like time tracking, docs, goals, and whiteboards - and you're comfortable with conventional SaaS access controls.
Feature comparison.
| Feature | SealTask | ClickUp |
|---|---|---|
| End-to-End Encryption | ||
| Zero-Knowledge Architecture | ||
| Self-Hosted Deployment Option | ||
| Provider Can Access Workspace Content | ||
| AI Features Can Process Workspace Content | ||
| GDPR Support | ||
| SOC 2 Certified | ||
| Open Source Crypto | ||
| Data Export | ||
| Team Collaboration | ||
| Kanban Boards | ||
| Time Tracking | ||
| Goals & OKRs | ||
| Whiteboards | ||
| Docs | ||
| Starting price | €0; Personal €5.90/mo; Team €4.90/seat/mo | $7/seat/mo (billed annually) |
AI processing means workspace content may be processed when AI features are enabled or used; it does not mean customer data is used for model training.
Want the private option?
Try SealTask in the hosted cloud, or talk to us about the licensed self-hosted Docker image for your own hardware.
Who should choose which?
Choose SealTask if...
- You handle sensitive client or internal project data
- You need strong encryption for regulated workflows
- You do not want server-side AI processing workspace content
- You prefer focused task management over a broad work OS
- You want the provider unable to read encrypted content
- You want a licensed self-hosted Docker option on your own hardware
Choose ClickUp if...
- You need an all-in-one productivity suite
- Time tracking is essential
- You want docs, whiteboards, and goals
- Feature richness outweighs privacy concerns
- You're managing non-sensitive projects
Security architecture.
SealTask: zero-knowledge.
SealTask encrypts readable workspace content on your device with ChaCha20-Poly1305 before sync. The client unlocks keys with an OPAQUE export key plus HKDF, and optional one-time backup keys stay user-held. The service does not hold the keys needed to decrypt that content; account and operational metadata remain server-visible.
Result: A database breach or legal demand can expose ciphertext and server-visible account, billing, security, audit, service, and workspace metadata. SealTask cannot decrypt readable workspace content without the client-held keys.
ClickUp: standard cloud security.
ClickUp uses encryption at rest and TLS for data in transit, with published compliance controls and audits. However, this is conventional SaaS encryption rather than zero-knowledge encryption, so ClickUp's service can process content for features like AI, search, and automations.
Result: Standard cloud security protects against many external threats, but provider-side compromise or authorized access paths could expose plaintext content. ClickUp can respond to lawful data requests with content it is technically able to access.
Frequently asked questions.
Is ClickUp end-to-end encrypted?
No. ClickUp publishes encryption at rest and in transit, but not SealTask-style client-side end-to-end encryption. That means the service can process workspace content in plaintext for product features and authorized support workflows.
Can ClickUp employees see my data?
ClickUp publishes access controls and policies limiting employee access, but its architecture still permits authorized server-side access to workspace content. With SealTask's zero-knowledge architecture, even our engineers cannot access encrypted workspace content because we do not have the keys.
Does ClickUp use my data for AI training?
ClickUp publishes commitments that customer content is not used to train AI models. Its AI features can still process workspace content when enabled or used. SealTask cannot process encrypted workspace content with server-side AI because we cannot decrypt it.
Can I use ClickUp or SealTask for HIPAA-regulated PHI?
Do not treat either product as HIPAA-ready by default. SealTask's zero-knowledge design may help with technical safeguards. Before any PHI use, SealTask must expressly agree in writing. Where HIPAA applies, SealTask and the customer must execute a HIPAA-compliant BAA before use. ClickUp can support HIPAA compliance for Enterprise customers that enter into a BAA.
Which has more features?
ClickUp is more feature-rich, with goals, docs, whiteboards, time tracking, and extensive views. SealTask focuses on encrypted task management and trades breadth for content privacy.
Explore private ClickUp alternatives
Researching ClickUp's security history?
We maintain a dated, source-linked record of publicly documented ClickUp security incidents — what happened, who was affected, and how the vendor responded.
Read the ClickUp incident recordComparing for a specific kind of private work?
The guide library adds audience-specific workflows, metadata caveats, and system-of-record decisions for legal, people, executive, startup, consulting, and private-practice work.
Browse audience guidesReferences.
- 01 ClickUp Security - Official security documentation
- 02 SealTask security architecture - Zero-knowledge encryption details
- 03 RFC 8439: ChaCha20-Poly1305 - Encryption standard used by SealTask
Privacy over features?
If security matters more than bells and whistles, start SealTask on Free. No credit card required.
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