COMMS
Fonoster now cleans up deleted workspaces and stops exposing stored secrets.
Alternatives · team communication tools
Fellow alternatives
The best Fellow alternatives in team communication tools, ranked by Sparkpulse's velocity_score.
Updated Nov 14, 2026
Looking for the best alternatives to Fellow? Sparkpulse tracks and ranks 12 alternatives in team communication tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Fellow shipped 0 meaningful updates in the last 30 days and carries a velocity score of 0.0 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About Fellow
Fellow's public changelog has been silent since 2021 — no recent direction is observable here.
The visible signal stops in spring 2021. The last few releases were calendar-extension touch-ups: action items appearing directly in the Google Calendar extension, public view-only meeting links for external attendees, and multi-calendar sync within a single Google or Office account. Nothing in this dataset reflects the past several years of Fellow's actual work.
Velocity 0.0 · Last update 6mo ago
Top 12 alternatives to Fellow
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
SUPPORT
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
COMMS
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
COMMS
Slack now hosts any A2A agent without Slack-specific code.
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Rocket.Chat 9.0 reaches rc.8 with a migration fix as candidates shrink to single patches.
COMMS
Threema ships a rare app change: spam reports for any chat on Android and iOS
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Matrix 2.0 is weeks from release as the Foundation details its money problem
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Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
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Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.
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Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
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Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.
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SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.
Fellow vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| Fellow (baseline) | 0.0 | 0 | meeting managementcalendar integrationstale changelog | — |
| Fonoster | 7.5 | 0 | programmable-voicevoice-aibilling | — |
| Twilio | 6.3 | 1 | voice-aimessagingcaller trust | General Availability: Smart Turn Detection for Conversation Relay |
| Salesmsg | 6.3 | 1 | business-textingai-agentscalling | Sherpa AI sends messages and builds broadcasts on request |
| Slack | 6.3 | 1 | agentsa2amcp | Bring your A2A agents to Slack |
| Rocket.Chat | 6.3 | 0 | team-chatlicensingself-hosted | — |
| Threema | 5.0 | 0 | secure-messagingprivacyspam-protection | — |
| Matrix | 5.0 | 0 | matrix-2.0open-standardsfoundation-funding | — |
| Rspamd | 5.0 | 0 | spam filteringemail authenticationinput hardening | — |
| Element | 5.0 | 0 | encryptionrecovery-keysmodule-api | — |
| Krisp | 5.0 | 0 | call-center-aitranscriptionvoice-translation | — |
| Misskey | 5.0 | 0 | fediverseself-hostingmemory usage | — |
| SlickText | 5.0 | 0 | smscontent-seopricing | — |
The 12 best Fellow alternatives, in depth
1. Fonoster · velocity 7.5
Fonoster now cleans up deleted workspaces and stops exposing stored secrets.
Its velocity score of 7.5/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Fonoster focuses on programmable voice, voice ai and billing.
Fonoster and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
2. Twilio · velocity 6.3
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
Over the last 30 days Twilio shipped 1 meaningful update vs Fellow's 0, most recently “General Availability: Smart Turn Detection for Conversation Relay”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Twilio focuses on voice ai, messaging and caller trust.
Over the last 30 days Twilio has been shipping faster than Fellow — a point in its favour if release momentum matters to you.
3. Salesmsg · velocity 6.3
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
Over the last 30 days Salesmsg shipped 1 meaningful update vs Fellow's 0, most recently “Sherpa AI sends messages and builds broadcasts on request”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Salesmsg focuses on business texting, ai agents and calling.
Over the last 30 days Salesmsg has been shipping faster than Fellow — a point in its favour if release momentum matters to you.
4. Slack · velocity 6.3
Slack now hosts any A2A agent without Slack-specific code.
Over the last 30 days Slack shipped 1 meaningful update vs Fellow's 0, most recently “Bring your A2A agents to Slack”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Slack focuses on agents, a2a and mcp.
Over the last 30 days Slack has been shipping faster than Fellow — a point in its favour if release momentum matters to you.
5. Rocket.Chat · velocity 6.3
Rocket.Chat 9.0 reaches rc.8 with a migration fix as candidates shrink to single patches.
Its velocity score of 6.3/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Rocket.Chat focuses on team chat, licensing and self hosted.
Rocket.Chat and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Rocket.Chat trajectory → · Compare Fellow vs Rocket.Chat →
6. Threema · velocity 5.0
Threema ships a rare app change: spam reports for any chat on Android and iOS.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Threema focuses on secure messaging, privacy and spam protection.
Threema and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
7. Matrix · velocity 5.0
Matrix 2.0 is weeks from release as the Foundation details its money problem.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Matrix focuses on matrix 2.0, open standards and foundation funding.
Matrix and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
8. Rspamd · velocity 5.0
Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Rspamd focuses on spam filtering, email authentication and input hardening.
Rspamd and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. Element · velocity 5.0
Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Element focuses on encryption, recovery keys and module api.
Element and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
10. Krisp · velocity 5.0
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Krisp focuses on call center ai, transcription and voice translation.
Krisp and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
11. Misskey · velocity 5.0
Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, Misskey focuses on fediverse, self hosting and memory usage.
Misskey and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
12. SlickText · velocity 5.0
SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Fellow leans on meeting management, calendar integration and stale changelog, SlickText focuses on sms, content seo and pricing.
SlickText and Fellow have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Frequently asked questions
What are the best alternatives to Fellow?
The top Fellow alternatives we currently track in team communication tools are Fonoster, Twilio, Salesmsg, Slack, Rocket.Chat, ranked by recent ship velocity.
How is this list of Fellow alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare Fellow directly with one of these alternatives?
Yes — every card has a "Compare with Fellow" link to a side-by-side /compare page.