Sellizer
Sellizer: Tracks proposal engagement and automates follow-ups, with CRM integrations and AI sales prediction. Ranked #26 of 27 in Sales Email Tracking Software by our editors (6.3/10); pricing: 14-day trial; best for teams focused on proposal engagement and sales automation.
At a glance
- Editor score6.3 / 10
- Pricing14-day trial
- Best forTeams focused on proposal engagement and sales automation
- Free planNo
- Reply trackingYes
- Founded2018 · Rzeszów, Poland
- Facts checked19 Sep 2026
Where it wins
- Tracks proposal opens, page engagement, downloads, printing and forwarding
- Automates follow-ups and sends opening notifications by email and SMS
- Connects with major CRMs and supports webhooks and API access
Where it doesn't
- Centers on proposal engagement rather than general email-body link tracking
- Solo and Team limit monthly proposal volume
- Enterprise is designed for companies with over 10 sales team members
Our verdict on Sellizer
Sellizer is a cloud-based sales-support application for businesses and sales teams that send proposals and want visibility into recipient engagement. It tracks proposal openings, page activity, reading time, downloads, printing, forwarding and return visits. Notifications arrive by email or SMS, while automatic follow-ups and sales-prediction features support the next steps in a sales process. It is a closer fit for proposal-led selling than for teams seeking a general-purpose email tracker focused on links in message bodies.
Its feature set extends from a proposal editor and document library to CRM and email integrations, team reporting, webhooks and API access. Email connections include Gmail, Outlook and Thunderbird, and CRM integrations include Salesforce, HubSpot, Pipedrive, Zoho CRM and Microsoft Dynamics 365. A browser extension is available for Chrome, Edge and Firefox, alongside web and API access. Per-page analytics, heatmaps and session replay provide detail on how a recipient engages with a proposal; that depth may matter more to teams refining sales documents than to those who only need an open alert.
The paid plans differ in proposal volume and team capabilities. Solo includes 100 proposals per month, opening notifications, CRM and email integrations, automatic follow-ups and full API access. Team raises the monthly allowance to 400 proposals and adds sales team management and webhooks. Enterprise offers custom pricing, customized functions and dedicated support for companies with over 10 sales team members. A 14-day free trial is available. Choose Sellizer when proposal engagement and sales automation are central to the workflow; teams prioritizing generic email-body link tracking should look for a tool built around that use case.
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Sellizer pricing
All 3 Sellizer plans and prices →
Sellizer fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Email client support | Gmail_and_outlook |
| Open tracking | Yes |
| Click tracking | Not verified |
| Reply tracking | Yes |
| Attachment tracking | Yes |
| Real-time alerts | Yes |
| CRM synchronization | Yes |
| Free trial | 14 days |
| Deployment | Cloud, Browser extension |
| Platforms | Web, Chrome extension |
| Integrations | 16 integrations: Gmail, Outlook, Thunderbird, Pipedrive, Livespace, Bitrix24 … |
| Pricing | 14-day trial (source) |
| Website | sellizer.com |
| Facts checked | 19 Sep 2026 |
Sellizer integrations
Sellizer lists 16 integrations on its own site.
- Gmail
- Outlook
- Thunderbird
- Pipedrive
- Livespace
- Bitrix24
- Baseline
- Raynet
- Firmao
- HubSpot
- Zoho CRM
- Salesforce
- Monday CRM
- Microsoft Dynamics 365
- CallPage
- Comarch ERP XL
Alternatives to Sellizer
- MailsuiteA broad tracking toolkit for teams working across email, PDFs, campaigns, and CRMs.9.4
- BoomerangA follow-up toolkit for Gmail and Outlook, with tracking and scheduling from a free plan.9.2
- OutsolviSales email tracking with confidence-scored opens, sequences and AI assistance.9.1
See all Sellizer alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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