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Sellizer
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Find out what happens with the proposals you send
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Sellizer - 2026 Pricing, Features, Reviews & Alternatives


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Last updated: March 2026
Sellizer overview
What is Sellizer?
Sellizer.io is proposal tracking software. That means it will notify you each time a recipient has opened your proposal. That is how you get a chance to contact him at the vital moment.
Thanks to Sellizer.io, you will have access to detailed statistics of the proposal to know what interests the client in your file the most. Thus, Sellizer.io enables you to improve the efficiency of your proposal constantly. In addition, the tool offers follow-up automation that will attract new customers.
When it comes to Sellizer's futures, they are divided into several groups:
— Analytics
— Automation
— Personalization
— Sales Team
— Documents
— Integrations
— Security
Moreover, integrations are a crucial element of the Sellizer's functionalities. Thanks to them, you can gain access to Gmail, Outlook, Pipedrive, Livespace, Bitrix24, and many more platforms.
You
— save time
— work less
— achieve effective sales
As it has been proved, Sellizer
— increases chances of successful sales even up to nine times
— enables you to close deals faster (50%)
— saves a sales rep's work up to 16 hours a month
What is more, Sellizer is suitable for numerous enterprises and holders: sales reps, sales leaders, and small businesses.
Sales reps
Know when prospects are reading your proposals, what interests them the most, and when the best time to reach out is. Understand your customers, focus on their needs, and build long-term relationships.
Sales leaders
Keep up to date with your sales team’s work. By better understanding the actions of the sales team, you will be able to evaluate the effectiveness of their work and help to solve emerging issues. In addition, you will plan your team's work more efficiently, because you know how your salespeople cope with different challenges.
Thanks to Sellizer, you have control over meeting the sales target and nothing will surprise you.
Small businesses
If you work alone or in a small team, productivity is the key. That's why we made Sellizer intuitive and easy to use so that you can work more effectively and don't spend hours on complicated setups.
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Sellizer is a comprehensive sales supporting tool that will notify you when a customer opens your proposal and provide key statistics that you have never had access to.
Starting price
per month
Alternatives
with better value for money
Sellizer’s user interface
Sellizer reviews
Overall rating
4.8
/5
5
Positive reviews
100
%
- Value for money
- Ease of use
- Features
- Customer support
- Likelihood to recommend9.8/10
5
4
3
2
1
4
1
0
0
0
Sellizer's key features
Most critical features, based on insights from Sellizer users:
All Sellizer features
Features rating:
Sellizer alternatives
Sellizer pricing
Value for money rating:
Starting from
5
/user
Per month
User opinions about Sellizer price and value
Value for money rating:
Sellizer support options
Typical customers
Platforms supported
Support options
Sellizer FAQs
Sellizer has the following typical customers:
Freelancers, Large Enterprises, Mid Size Business, Small Business
These products have better value for money
Q. What languages does Sellizer support?
Sellizer supports the following languages:
English, Polish
Q. Does Sellizer offer an API?
Yes, Sellizer has an API available for use.
Q. What level of support does Sellizer offer?
Sellizer offers the following support options:
Email/Help Desk, Chat









