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Missive vs Spike

Side-by-side comparison of features, pricing, ratings, and alternatives.

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Missive
MissiveCollaborative team inbox that turns email into a shared workspace with chat and tasks.
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Spike
SpikeAn AI-powered email app that turns your inbox into a fast, chat-like conversation.
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Overview
Description

Missive is an email client built for teams rather than individuals. Shared inboxes let multiple people see, discuss, and respond to the same email account, with internal comment threads on each email so teammates can coordinate without forwarding messages back and forth. Emails can be converted into trackable tasks, tagged for follow-up, and assigned to teammates, while dedicated team spaces keep different departments or accounts organized. Missive also connects email, SMS, and social messages into one inbox, with 25+ integrations and an AI assistant that can help draft replies and gather context via MCP.

Spike is an email client that redesigns the inbox as a conversational, chat-style interface while remaining fully compatible with standard email (IMAP/Gmail/Outlook and other providers). It layers in AI features such as smart inbox prioritization, email summaries, and context-aware draft writing, alongside productivity tools like task tracking, calendar integration, snooze, voice messages, and unified search across accounts.

Pricing
Paid (Subscription)
Freemium
Category
Email Clients
Email Clients
Best for
Small and mid-sized teams managing shared email, SMS, or support inboxes
Individual professionals, freelancers, remote teams, and support/sales teams managing high email vol
Specifications
deployment
Cloud/SaaS
Cloud/SaaS
open source
No
No
api available
Yes
No
support options
Help Center, Live chat, Personalized onboarding (Business tier)
Standard support (free plans), Priority/VIP support (paid plans)
key integrations
ChatGPT, Pipedrive, Trello, Zapier
Gmail, Outlook, IMAP email providers, calendar integration
Pros & Cons
Pros
  • Genuinely collaborative email, not just a shared login to one inbox
  • Email-to-task conversion removes the need for a separate ticketing tool for many small teams
  • 30-day free trial with no credit card required
  • Strong customer ratings (4.8 on G2 with 1,000+ reviews)
  • Chat-style interface makes high-volume inboxes feel faster to process than traditional email clients
  • Works with existing email accounts (Gmail, Outlook, IMAP) rather than requiring a new email address
  • Bundles collaboration features (shared inboxes, notes, video calls, voice messages) that would otherwise need separate apps
  • Free plan is usable on its own, not just a time-limited trial
Cons
  • No permanent free tier, subscription required after the 30-day trial
  • Per-user pricing can add up for larger teams
  • Primarily an email/messaging tool, not a full help-desk replacement for complex support workflows
  • Free plan caps AI usage at only 10 queries and limits storage to 1 GB
  • Advanced features like SAML-SSO and video call recording on the Teamspace Business plan are still listed as coming soon
  • Two separate pricing tracks (Email App vs Teamspace) can make it unclear which plan fits an individual vs a team
Community & Metrics
Upvotes
0
0
User rating
Not enough data
Not enough data

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The Verdict

AI-generated from listing data

Spike offers a free‑tier with AI chat‑style email and built‑in collaboration, while Missive provides deeper team‑focused shared inboxes and task features but requires a paid subscription.

Key differences

  • •Spike includes a usable free plan; Missive only offers a time‑limited free trial.
  • •Spike’s AI summarization and chat‑style view are core; Missive’s AI assists drafting and integrates with external tools like ChatGPT.
  • •Missive supports API access and broader third‑party integrations; Spike has no API.
  • •Missive converts emails to trackable tasks and offers automation rules; Spike focuses on voice/video chat and shared inboxes.
  • •Spike bundles video/voice calls inside the app; Missive does not include native calling features.
DimensionWinner

Pricing & value

Spike’s freemium plan is usable with limited AI (10 queries) and 1 GB storage; Missive requires paid subscription after 30‑day trial.

Spike

Ease of use / learning curve

Spike’s chat‑style interface feels like instant messaging, reducing inbox processing time for individual users.

Spike

Features & depth

Missive offers shared inboxes, email‑to‑task conversion, automation rules, and stronger collaborative commenting.

Missive

Integrations & ecosystem

Missive provides an API and integrations with ChatGPT, Pipedrive, Trello, Zapier; Spike lists only email providers.

Missive

Collaboration

Missive’s shared inboxes, internal comment threads, and task assignment are purpose‑built for team work.

Missive

Scalability

Missive’s per‑user pricing and business‑tier onboarding support larger teams; Spike’s free tier caps AI usage.

Missive

Support & security

Spike offers standard free support and paid priority/VIP; Missive offers help‑center, live chat, and personalized onboarding but no SAML‑SSO info.

Spike

Choose Missive if…

Small‑to‑mid sized teams that need shared inboxes, task conversion, automation, and API integrations, and are willing to pay.

Choose Spike if…

Individual professionals or small teams needing a free, chat‑style email client with built‑in voice/video calls.

Common questions

Can I use either product for free?

Spike has a free plan (limited AI queries and 1 GB storage). Missive only offers a 30‑day trial; thereafter a subscription is required.

Which tool supports third‑party integrations and automation?

Missive provides an API and integrations with ChatGPT, Pipedrive, Trello, Zapier, plus automation rules; Spike lists only email/calendar integrations.

Do either of these include built‑in video or voice calling?

Spike includes built‑in voice messaging and 1:1 or group video calls; Missive does not provide native calling features.