Freedom251 › Teacher Evaluation Software
Trellis
What Trellis is
Trellis is a browser-based platform for K–12 school leaders turning classroom walkthrough notes into teacher feedback and coaching conversations. Observers can type or dictate notes, attach evidence, create drafts aligned with Danielson, Marzano, CSTPs, UDL, state rubrics, or local forms, then review and edit before delivering feedback through teacher portals. Its Elli assistant answers questions from a school’s observations and feedback; District plan leaders can query across schools. Trellis says administrators decide what to deliver, does not automatically rate teachers, and does not send data to HR systems. Voice recordings are deleted after transcription while text remains. The Site plan costs $249 a year and includes unlimited teachers, observations, feedback, and Elli; a 14-day trial is available, with no free plan. There is no live SIS or LMS sync. Data can be exported as CSV or JSON, and staff can be invited by email.
Who it suits
Trellis suits principals, assistant principals, instructional coaches, district leaders, and teachers managing observation feedback. It is designed for K–12 school workspaces using structured frameworks.
What it does well
- Supports typed and dictated observation notes
- Framework-aligned feedback drafts
- Elli answers questions from observations
- CSV and JSON data exports
- Site plan includes unlimited observations
What to know first
- No free plan
- No live SIS or LMS synchronization
- No mobile app
- Trellis has not completed a SOC 2 audit
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Site plan | $249 a year · Unlimited teachers · Unlimited observations & feedback · Elli included · Share data with site admins · Basic chat and email support | $249 a year |
| District plan | Custom pricing based on size and needs · Everything in Site plan · District analytics · Unlimited teacher portals · Elli across the district · Personalized priority service | On request |
As gettrellis.app lists them, read 7 Oct 2026. The maker's own page has the final word.
Verdict
Trellis combines observation workflows, reviewed AI drafts, teacher portals, and school-level questions in a browser service. Schools should weigh its manual review model and lack of live SIS or LMS connections.
Facts from Trellis's own pages
- AI assistant
- Elli answers questions using a school's observations and feedback, and District plan leaders can query across their schools. · gettrellis.app, 7 Oct 2026
- AI providers
- Trellis uses Anthropic and OpenAI commercial APIs, and says customer data is not used to train their models. · gettrellis.app, 7 Oct 2026
- AI review
- AI drafts feedback, but an administrator reviews and chooses what to deliver; Trellis says it does not automatically rate teachers or send data to HR systems. · gettrellis.app, 7 Oct 2026
- Compliance
- Trellis is designed to support FERPA obligations and offers data processing agreements; it says its infrastructure vendors hold certifications, while Trellis itself has not completed a SOC 2 audit. · gettrellis.app, 7 Oct 2026
- Data controls
- Admins can export workspace data as CSV or JSON, and Trellis says it does not sell data or use it for advertising. · gettrellis.app, 7 Oct 2026
- Frameworks
- Trellis supports frameworks including Danielson, Marzano, CSTPs, UDL, state rubrics, and local walkthrough forms. · gettrellis.app, 7 Oct 2026
- Hosting
- Trellis is browser-based and hosted on Vercel with a PostgreSQL database managed on AWS via Supabase; it has no on-premise install. · gettrellis.app, 7 Oct 2026
- Integrations
- Trellis has no live SIS or LMS sync today; staff can be invited by email and data can be moved in or out as CSV. · gettrellis.app, 7 Oct 2026
- Intended users
- Trellis serves principals, assistant principals, instructional coaches, district leaders, and teachers. · gettrellis.app, 7 Oct 2026
- Observation workflow
- Observers can type or dictate notes, attach artifacts, generate framework-aligned drafts, review and edit them, and deliver feedback through teacher portals. · gettrellis.app, 7 Oct 2026
- Purpose
- Trellis helps K–12 school leaders turn classroom walkthrough notes into personalized teacher feedback and coaching conversations. · gettrellis.app, 7 Oct 2026
- Security
- Trellis says data is encrypted in transit with TLS and at rest with AES-256, and access is scoped to each school's workspace. · gettrellis.app, 7 Oct 2026
- Support
- Trellis says it will provide a written response to questions within one business day. · gettrellis.app, 7 Oct 2026
- Voice notes
- Voice notes are transcribed and the audio recording is deleted immediately; Trellis keeps the text transcript. · gettrellis.app, 7 Oct 2026
Where Trellis stands on Freedom251
- Teacher Evaluation Software#15 of 27