Email Tracking Software Resources

Is Zoho CRM really free?

Hi all,

Opening a discussion around top-rated tools for email tracking, especially platforms that help marketing teams see opens, clicks, replies, and attachment activity across multi-step campaigns. Curious which solutions actually deliver a great experience for both campaign managers and ops.

Here are five platforms frequently mentioned in the space:

• HubSpot Sales Hub – Combines CRM + engagement with robust email tracking and sequences. For campaign teams already in HubSpot, does the native tracking (opens/clicks/attachments) make reporting and handoffs to sales smoother?
• Instantly – Popular with outbound teams for scale and deliverability tooling, plus granular tracking. For marketing-led outbound, is Instantly’s tracking depth (across large sends) giving you a clearer signal on offer/channel fit?
• Brevo Marketing Platform – All-in-one marketing suite with campaign analytics and email tracking baked in. For lifecycle marketers, is Brevo’s tracking enough to drive experiments without exporting to a BI tool?
• Mixmax – Inbox-native engagement with strong tracking, scheduling, and sequencing. If your marketers run ABM from Gmail, does Mixmax’s real-time tracking improve reply rates and speed up follow-ups?
• GMass – Gmail-based bulk campaigns with opens/clicks/response tracking. For lean teams, is GMass giving you the right mix of simplicity + analytics for quick iteration on subject lines and CTAs?

Would love feedback from teams using any of these platforms:

• Which tool produced the most reliable tracking across larger sends (and how did it handle no-click opens and privacy-protected mail clients)?
• How was the implementation and time to value for your stack?
• Any unexpected advantages (or pain points) around attribution, API access, or connecting results back to your CRM?

If you recommend a different email tracking platform from G2’s list for marketing use cases, drop it below, and I can update the lineup.