Streak vs Sellsy 2026

Streak installs as a Chrome extension in under five minutes. The first pipeline is live the same afternoon with zero formal training, confirmed across multiple G2 reviewers who describe same-day adoption. The drag-and-drop Kanban editor sits inside Gmail, so teams already comfortable in their inbox pick it up without context-switching at all. One reviewer at a research firm reports onboarding a four-person team to core features without a single training session.

Sellsy requires 2-3 hours of initial setup for pipelines, custom fields, and document templates. A sales team of four people needed 45 minutes for the basics plus two additional sessions to get comfortable with advanced features. The interface is functional and covers a wider surface, invoicing, e-signatures, projects, but navigation between modules requires several clicks, and multiple reviewers describe it as slightly dated compared to modern alternatives. Sellsy's mobile app supports e-signatures and field-team geolocation, a real edge Streak cannot match.

The honest bémol on Streak: the Gmail panel gets cluttered fast with heavy data, one owner reports disabling the extension because it made Gmail lag, and the whole thing collapses the moment anyone on the team is not on Chrome + Gmail. Ease of setup goes to Streak. Depth of daily workflow for a French team goes to Sellsy.

Streak wins this by a slim margin, and mostly because of the free plan. Streak's free tier is genuinely useful, email tracking, snippets, limited mail merge, at $0 forever. Sellsy has no free plan and a hard 2-user minimum: a solo founder on Standard annual pays at minimum around €1,176/year. That asymmetry at the entry end is significant for small teams testing the water.

Move past that, and it gets more nuanced. At $49/user/month (Pro annual), Streak covers pipeline management for Gmail teams at a lower sticker than Sellsy's Evolution combined suite at €89/user/month. But Sellsy bundles invoicing, e-signatures (saving roughly €20-30/month versus DocuSign), eReporting, and Factur-X compliance that Streak cannot provide at any tier. A 5-person French SMB on Sellsy Evolution combined pays €5,340/year, and gets CRM + invoicing + e-signatures + compliance in one bill. That same team paying $69/user/month for Streak Pro+ plus separate invoicing software and an e-signature tool will likely land in the same range or higher.

The honest Streak bémol: automations only unlock at Pro+ ($69/user/month), so the practical CRM floor for a team that wants automation is $69, not $49. Enterprise at $129/user/month adds dedicated support, but requires a 10-user minimum, pricing out exactly the small teams Streak targets.

Sellsy wins this one clearly. The feature set is substantially broader: CRM pipelines (up to 20 on Evolution), invoicing, quotes, e-signatures (tested at under 10 minutes in real SMB conditions), eReporting, cash management, marketing email and SMS sequences, project tracking, SIRENE enrichment, and a 2026 AI tools add-on. For a commercial team running structured sales operations in France, there is no equivalent on Streak.

Streak covers its own scope well. Kanban pipelines, mail merge (1,500/day on Pro), email tracking, AI Co-Pilot with deal summaries, pipeline Q&A, auto-fill from email signatures, ChatGPT and Claude integrations, and MCP server support, genuinely forward-looking on the AI side for a CRM of this size. The honest catch: automation is rule-based only at Pro+, no multi-step sequences, no conditional branching. Reporting is basic until Pro+. Multiple reviewers export raw data to spreadsheets because the built-in analytics cannot organize complex work cleanly.

Sellsy's bémol: marketing automation is described as basic compared to HubSpot or ActiveCampaign. The 2026 AI add-on covers client summaries and email writing but lacks lead scoring or predictive analytics. Streak's MCP server and native Claude integration are more mature on the AI front specifically.

Sellsy wins this clearly and it is not close. We contacted Sellsy support four times over three months: average email response time was 4-6 hours, always in French, always with a relevant solution. Live chat on Evolution and Elite plans averaged under 10 minutes wait. Personalized onboarding is offered on Evolution and Elite, a 1-hour call with a Sellsy advisor to configure pipelines and custom fields, which meaningfully accelerates adoption. For a French SMB, having local French-language support that responds in hours rather than weeks is a real differentiator.

Streak's support model is email-only on standard plans. No live chat, no phone on Pro or Pro+. Multiple reviewers on G2 and Capterra cite response times of two or more weeks. Dedicated support exists but only on the Enterprise tier with a 10-user minimum, out of reach for the small teams Streak otherwise targets. To be fair: Streak University tutorials and live classes cover onboarding well, and several reviewers describe the team as helpful when they do respond. The structural problem is speed and channel coverage, not quality.

The Sellsy bémol worth flagging: no phone support on Standard (€49/user/month combined), the community forum is less active than HubSpot or Salesforce, and chat is locked to Evolution and above. For a team on the entry plan, the real channel is email. Still comfortably better than Streak's standard offering.

Sellsy edges this 3.9 to 3.7, a closer round than it looks. Sellsy's 100+ native integrations cover the French SMB essentials: Aircall (telephony with auto call logging, tested with a 6-person team with immediate adoption), Order Invoicer (Shopify/WooCommerce/PrestaShop orders become invoices automatically), Tiime (pre-accounting and bank sync), Zapier and Make, plus REST API. Critically, Sellsy integrates with both Gmail and Outlook, so mixed-email teams are covered. The French ecosystem tooling (Tiime, SIRENE, Aircall) is irrelevant to non-French teams but extremely high-value for the FR market.

Streak's integration story is technically broader on raw count: 9,000+ apps via Zapier, deep Google Workspace native ties (Calendar, Sheets, Drive, Forms), and first-party connectors for Calendly, Typeform, Slack and LinkedIn. The MCP server and native ChatGPT + Claude integrations added in 2025 are genuinely ahead of most CRMs at this price point. The catch: the native automation integrations (Calendly, Typeform, Slack) are locked to Pro+ and Enterprise only, and the whole ecosystem collapses if anyone moves off Gmail + Chrome.

Streak's Zapier breadth technically wins on catalog size. Sellsy wins on real-world fit for a French team, on email-client agnosticism, and on the maturity of its French-ecosystem connectors. For a Google-first international team, Streak integrates better. For a French team with Outlook users, Aircall, or WooCommerce orders to invoice, Sellsy is the only viable option.