Otter vs Fireflies vs Fathom: Best AI Notetaker for Advisors

Three AI notetakers dominate financial-advisor adoption: Otter.ai, Fireflies, and Fathom. They all transcribe meetings. They all generate summaries. From there, the differences matter enormously — especially under SEC Rule 204-2 records retention and FINRA supervisory obligations.

Here is the honest comparison, written from the seat of operators who have deployed each at advisory firms.

The short answer

If you are a solo RIA or small ensemble who wants speed and low overhead: Fathom. Free tier is generous, the integration with Zoom is the cleanest, and the summaries are tight.

If you are a firm with 5+ advisors who needs central admin, retention policies, and DLP-style controls: Fireflies. Their compliance posture is the strongest of the three for regulated industries.

If you live in cross-platform meetings (Google Meet + Zoom + Teams + dial-in calls) and value transcript accuracy above polish: Otter. Their core transcription engine is still the best, but the compliance story lags.

The wrong answer for any regulated firm is "let advisors pick their own." Choose one, configure retention, and enforce it.

Compliance retention — the real differentiator

SEC Rule 204-2 requires advisors to retain "originals or copies of all written communications received and copies of all written communications sent" related to advice. Recordings and transcripts of client meetings fall into this category once they reference recommendations or are referenced in subsequent advice.

Default retention by tool:

• Otter — Default 30 days on free, longer on paid plans, but exports require admin action. Retention policy is per-user, not firm-wide.
• Fireflies — Configurable firm-wide retention from 90 days to indefinite. Admin can lock retention so individual users cannot override. This is the model that maps to SEC requirements.
• Fathom — 30-day default, paid tiers extend. Export to drive is automatic with the Team plan. No firm-wide retention lock.

For a firm, Fireflies is the only one that lets you set a policy ("retain all advisor-tagged meetings for 7 years") and enforce it without manual export discipline from every advisor.

Custodian and CRM integration

Most advisors want notes flowing into Redtail, Wealthbox, or Salesforce FSC. Native integrations:

• Otter — Salesforce native (clean). Redtail and Wealthbox via Zapier or manual import.
• Fireflies — Salesforce, HubSpot native. Redtail via Zapier with a clean trigger schema. Wealthbox via API + Zapier.
• Fathom — HubSpot, Salesforce native. Redtail and Wealthbox via Zapier.

None of the three has first-party Redtail or Wealthbox integration. Zapier is the bridge. Set up the workflow once and it runs.

Redaction and PII handling

Client meetings include account numbers, SSNs (occasionally, e.g. in onboarding), and personal financial details. How each tool handles this:

• Otter — No native redaction. Manual edits to transcript only.
• Fireflies — Built-in PII redaction (account numbers, SSNs, credit card numbers) on Team and Enterprise plans. Configurable patterns.
• Fathom — No native redaction. Manual edits.

For new-client onboarding meetings where SSNs may surface, Fireflies' auto-redaction is the only safe default.

Summary quality

We've reviewed thousands of advisor-meeting summaries across all three. Honest assessment:

• Fathom — Cleanest, most action-oriented summaries. Best at "here are the next steps and who owns them."
• Fireflies — Most complete; sometimes too verbose. Good for compliance trail.
• Otter — Most accurate transcript, weakest summary engine. You'll edit summaries more than you expect.

If you want a one-pager that lands in the CRM and your associate can act on, Fathom wins. If you want a defensible record that captures everything that was said, Fireflies wins.

Recording disclosure and consent

All three handle consent prompts. State-by-state recording laws still apply (two-party consent states like California and Florida require both sides to agree). Your meeting opening should reference recording either way:

"I'm recording our session today for note-taking purposes. The notes will be saved in our client file and used to follow up on next steps. Are you okay with that?"

This isn't a tool feature — it's an operator behavior. None of the three substitutes for proper consent practice.

Cost (per seat, monthly, 2026 pricing as of writing)

• Otter — Free for 300 min/month, Pro $17/seat, Business $30/seat
• Fireflies — Free for 800 min/month, Pro $18/seat, Business $29/seat, Enterprise custom
• Fathom — Free for unlimited recordings (no transcription cap), Premium $24/seat, Team $29/seat

Fathom's free tier is genuinely usable for solo advisors. The others gate transcription minutes hard.

What we recommend by firm shape

• Solo RIA: Fathom free tier, upgrade to Premium when you hit recording volume
• 2-5 advisor firm: Fireflies Pro, set 7-year retention, plug into Redtail or Wealthbox
• 5+ advisor firm: Fireflies Business or Enterprise, configure PII redaction, set firm-wide retention lock
• Hybrid in-person + virtual practice: Otter still wins on transcript accuracy for dictation-style notes from in-person meetings (laptop mic in the room)

The mistake we see most often is firms picking a tool because the founding advisor likes the UI, without ever testing under regulatory scenarios. Run a mock exam: can you produce every transcript from a given quarter for a given advisor? If the answer is "we'd have to email everyone," the policy is broken.