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Lusha VS InboxStack

Compare Lusha VS InboxStack and see what are their differences

Warmup Inbox
Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically. featured
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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Lusha logo Lusha

Search less. Sell more.

InboxStack logo InboxStack

Email deliverability intelligence with root-cause AI
  • Lusha Landing page
    Landing page //
    2023-06-14

Lusha is a continuously updating database that provides B2B Salespeople with targeted, accurate, and timely business information. Lusha aggregates its data from multiple sources, cross-checking and updating LIVE to ensure up-to-the-minute data accuracy and database cleanliness.

  • InboxStack Dashboard
    Dashboard //
    2026-07-20
  • InboxStack Multi ESP Dashboard
    Multi ESP Dashboard //
    2026-07-20
  • InboxStack Multi Client View
    Multi Client View //
    2026-07-20

InboxStack is an email deliverability intelligence platform built for teams who need to know why their emails aren't reaching the inbox โ€” not just that they aren't. At its core is Brain, a proprietary causal AI engine trained on a 22-year deliverability knowledge base, which correlates signals across your ESP, DNS authentication records (SPF, DKIM, DMARC), Google Postmaster Tools, Microsoft SNDS, and 50+ blocklists to pinpoint root causes instead of surfacing raw metrics.

Most deliverability tools stop at monitoring: they show you a drop in inbox placement or a blocklist hit and leave you to investigate. InboxStack goes further, tracing the actual causal chain โ€” a DKIM misalignment, a reputation dip on a specific sending IP, a content trigger โ€” so you can fix the real problem instead of guessing.

Setup takes minutes with no migration required: forward your email headers for an instant DNS/authentication audit, or connect your existing ESP and Postmaster accounts for ongoing monitoring. Optional seed testing gives you real inbox-vs-spam placement data across major providers.

Built for agencies managing multiple client domains and growing companies who've outgrown basic authentication checkers, InboxStack turns deliverability from a black box into a diagnosable, fixable system.

Lusha

Website
lusha.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
2016 January
Startup details
Country
United States
State
New York
City
New York
Founder(s)
Adi Weisz
Employees
100 - 249
Edit details

InboxStack

Website
inboxstack.com
Pricing URL
Official InboxStack Pricing
$ Details
freemium $49.0 / Monthly
Platforms
Web
Release Date
2026 May
Startup details
Country
India
State
karnataka
City
Bengaluru
Employees
1 - 9
Edit details

Lusha features and specs

  • Accuracy
    Lusha provides highly accurate contact and company information, which can be vital for sales and marketing teams.
  • Ease of Use
    The platform is user-friendly, and the browser extension makes it very convenient to access contact details directly from LinkedIn or other websites.
  • Data Enrichment
    Lusha can enrich existing databases with additional information, making it easier to build comprehensive profiles of leads and contacts.
  • GDPR Compliance
    Lusha is compliant with GDPR, which provides peace of mind for businesses operating in or dealing with customers in the EU.
  • Integrations
    Lusha integrates seamlessly with various CRM systems, making it easier to manage and utilize the data within existing workflows.

Possible disadvantages of Lusha

  • Cost
    Lusha can be expensive, especially for small businesses or startups with limited budgets.
  • Data Privacy
    Despite GDPR compliance, some users may still have concerns regarding data privacy and the ethical implications of scraping contact information.
  • Limited Database
    The database might not be as extensive as some competitors, potentially limiting the scope of accessible contact information.
  • Credit System
    Lusha operates on a credit system for accessing information, which can be restrictive and may require additional purchases for extensive use.
  • Occasional Inaccuracies
    Despite generally high accuracy, some users may encounter occasional outdated or incorrect information, especially in rapidly changing industries.

InboxStack features and specs

  • Inboxstack Brain
    Root-cause AI analysis (Brain)
  • Email Audit
    DNS/SPF/DKIM/DMARC authentication audit
  • DMARC Monitoring
    DMARC report monitoring
  • Deliverability Monitoring
    Google Postmaster, SNDS, Senderscore monitoring
  • Blacklist Monitoring
    50+ blocklist monitoring
  • Seed Testing
    Seed testing & inbox placement tracking
  • Warm-up
    Warmup plan and monitor
  • ESP Dashboard
    Multi ESP view dashboard

Analysis of Lusha

Overall verdict

  • Lusha is generally considered a good tool for sales and marketing professionals looking to enrich their contact databases and access B2B contact information.

Why this product is good

  • Lusha provides accurate business contact information, such as email addresses and phone numbers, which can help sales teams reach key decision-makers more efficiently. It is known for its ease of use, integration with popular platforms like LinkedIn and Salesforce, and its ability to enhance CRM systems with valuable data.

Recommended for

  • Sales professionals seeking to generate leads
  • Marketing teams aiming to target specific industries or company sizes
  • Recruiters looking for potential candidates and their contact details
  • Businesses aiming to enrich their CRM with verified contact information

Lusha videos

+ Add

How to use Lusha

More videos:

  • Review - Lusha
  • Review - ๐˜‰๐˜ถ๐˜ง๐˜ง๐˜ฆ๐˜ฅ ๐˜™๐˜ช๐˜ด๐˜ฌ๐˜บ ๐˜‹๐˜ข๐˜ด๐˜ฉ - NEW LUSHA! Light Warbear 2A in RTA! - [Monster Review] - Summoners War

InboxStack videos

No InboxStack videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Lusha and InboxStack)

Lusha

InboxStack

Lead Generation
100 100%
Lead Generation
0% 0
Reputation Management
0 0%
Reputation Management
100% 100
Sales Tools
100 100%
Sales Tools
0% 0
Email
0 0%
Email
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Lusha and InboxStack

Lusha Reviews

Best AI Prospecting Tools for B2B Sales in 2026
What is the difference between a prospecting tool and a sales engagement tool? Prospecting tools find and verify contact information. Sales engagement tools run outreach sequences and manage replies. Some platforms, including toflow.ai, Apollo.io, and lemlist, cover both in a single product. Others, like Lusha, focus on data only and are designed to pair with a separate...
Source: toflow.ai
ZoomInfo vs Lusha vs Apollo vs MillionPhones: 2026 Comparison
Lusha made a name with their Chrome extension โ€” hover over a LinkedIn profile and get the phone number. It's simple and it works. Their data quality for US direct dials is solid. The free tier is slim (5 credits/month), and pricing scales quickly once you need volume.
Source: millionphones.com
Top 10 Lead Generation and Engagement Tools
Lusha is a lead generation tool focused on providing accurate B2B contact details. It enriches leads with verified email addresses, phone numbers, and company information, helping businesses quickly reach key decision-makers.
Source: rainex.io
21 Best Lead Generation Software for 2024
Lusha is a powerful LinkedIn lead generation software for marketing and sales teams looking to connect with high-quality prospects on the platform.
Source: www.sender.net
11 Apollo.io Alternatives and Competitors 2024
Based on various factors, such as user reviews and feedback, the leading alternatives to Apollo.io are Zoominfo, Kaspr, Lead411, and Lusha.
Source: evaboot.com

InboxStack Reviews

We have no reviews of InboxStack yet.
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Social recommendations and mentions

Based on our record, Lusha seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Lusha mentions (1)

InboxStack mentions (0)

We have not tracked any mentions of InboxStack yet. Tracking of InboxStack recommendations started around Jul 2026.

What are some alternatives?

When comparing Lusha and InboxStack, you can also consider the following products

Apollo.io - Apolloโ€™s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.

GlockApps - G-Lock Apps is an interesting tool that might seem simple to some, but is quite essential to most online marketers.

ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.

Email Testing By Inbox Pirates - Preview, Analyze & Test emails with one click.

Hunter.io - Find all the email addresses related to a domain

Validity LLC - Founded in 2010, located in Essex Countyโ€™s City of Orange, NJ, and serving all 50 states of the U.S., Validity, LLC is considered a โ€œOne Stop Shopโ€ for ...

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