App comparison
Add up to 4 apps below to see how they compare. You can also use the "Compare" buttons while browsing.
GetApp offers objective, independent research and verified user reviews. We may earn a referral fee when you visit a vendor through our links.
Our commitment
Independent research methodology
Our researchers use a mix of verified reviews, independent research, and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology.
Verified user reviews
GetApp maintains a proprietary database of millions of in-depth, verified user reviews across thousands of products in hundreds of software categories. Our data scientists apply advanced modeling techniques to identify key insights about products based on those reviews. We may also share aggregated ratings and select excerpts from those reviews throughout our site.
Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI.
How GetApp ensures transparency
GetApp lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. GetApp is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider’s website.

MillionVerifier
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email verification tool for businesses
MillionVerifier Alternatives & Competitors (2026)
Top 10 free alternatives

InboxAlly
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
InboxAlly is the Ultimate Email Deliverability Tool!


0.4
Value for money
Starting price
0.4
Functionality
Email Tracking
4.7/5
Activity Dashboard
4/5
Engagement Tracking
4/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5

mailfloss
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Bulk Email Verification for Busy Businesses


0.5
Value for money
Starting price
0.4
Functionality
Spam Detection
5/5
Third-Party Integrations
5/5
Single Email Verification
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5

Kickbox Email Verification
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email verification software for developers and marketers


0.1
Value for money
Starting price
Functionality
API
5/5
Monitoring
5/5
Activity Tracking
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5

Melissa Data Quality Suite
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
AI-Powered data quality for accurate, actionable insights.


0.1
Value for money
No pricing info
Starting price
0.4
Functionality
Address Validation
5/5
Third-Party Integrations
5/5
Data Verification
4.3/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5

Emailable
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Email Verification that's astonishingly easy and low-cost.


0.2
Value for money
Starting price
0.3
Functionality
Spam Detection
5/5
Single Email Verification
5/5
Reporting & Statistics
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


Value for money
Starting price
0.2
Functionality
Domain Check
4.6/5
Catch-all Server Detection
4.5/5
Recipient Validation
4.5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.2
Value for money
Starting price
0.1
Functionality
Data Aggregation and Publishing
5/5
Reporting/Analytics
5/5
Web Data Extraction
4.4/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.6
Value for money
Starting price
0.6
Functionality
A/B Testing
N/A
Contact Management
N/A
Prospecting Tools
N/A
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.6
Value for money
Starting price
0.6
Functionality
CRM
N/A
Data Cleansing
N/A
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.1
Value for money
Starting price
0.1
Functionality
Spam Blocker
4/5
Data Import/Export
3.5/5
Disposable Email Detection
2.7/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.4
Value for money
Starting price
0.4
Functionality
Single Email Verification
5/5
Reporting & Statistics
5/5
Email Marketing
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.4
Value for money
Starting price
0.5
Functionality
Spam Blocker
5/5
Fraud Detection
5/5
Data Verification
4.9/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.2
Value for money
Starting price
0.4
Functionality
Reporting/Analytics
5/5
Spam Analysis
5/5
Syntax Check
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.1
Value for money
Starting price
0.6
Functionality
Domain Check
5/5
Reporting/Analytics
5/5
Real-Time Monitoring
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


1.0
Value for money
Starting price
1.2
Functionality
Domain Check
3.8/5
Syntax Check
3.5/5
Recipient Validation
3.5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.1
Value for money
Starting price
0.2
Functionality
Data Verification
5/5
CRM
5/5
API
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.4
Value for money
Starting price
Functionality
Third-Party Integrations
5/5
Real-Time Data
5/5
Customer Database
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.1
Value for money
Starting price
0.1
Functionality
List Management
5/5
Email Marketing
5/5
Email Campaign Management
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.4
Value for money
No pricing info
Starting price
0.6
Functionality
Third-Party Integrations
5/5
Domain Check
5/5
Data Verification
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5


0.9
Value for money
Starting price
0.1
Functionality
Prospecting Tools
5/5
Lead Segmentation
5/5
Lead Generation
5/5
Top Features
Domain Check
5/5
Single Email Verification
5/5
Syntax Check
4.6/5

