
CheckNumber.AI
NumberCheck
numberchecker.ai
WA-Filter
LimePhone.io
Loqate
2Chat.co
Upload CSV contact lists to verify phone number status, WhatsApp activity, WhatsApp age and gender, RCS, iOS, Gmail, Yahoo, and Outlook signals at scale.

Which is more popular?
Based on our record, Scratch seems to be more popular. It has been mentioned 579 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | numberchecker.cloud | scratch.mit.edu |
| Pricing | ||
| Company | — | 2007 |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
01 - NumberChecker Introduction
Scratch 3.0 Review: My Thoughts About Scratch 3.0
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing NumberChecker.cloud and Scratch.
NumberChecker.cloud's answer
NumberChecker.cloud was created to solve a practical campaign problem: businesses often waste money contacting numbers or emails that are inactive, invalid, unreachable, or unsuitable for the intended channel. The platform was built to help teams clean lists, improve targeting, and make better decisions before launching bulk outreach campaigns.
NumberChecker.cloud's answer
NumberChecker.cloud's answer
NumberChecker.cloud combines multiple contact verification checks in one platform: phone number status, WhatsApp availability, WhatsApp age and gender signals, RCS, iOS status, carrier/network lookup, and Gmail/Yahoo/Outlook email verification. It is built for bulk CSV workflows, so marketers and data teams can clean large contact lists before spending money on outreach.
NumberChecker.cloud's answer
The primary audience is marketers, lead generation agencies, CRM teams, sales teams, WhatsApp campaign managers, SMS senders, email marketers, and businesses that work with large contact lists and need to verify data quality before outreach.
NumberChecker.cloud's answer
Choose NumberChecker.cloud if you need bulk contact verification across multiple channels, not just one basic phone or email check. It helps reduce wasted campaign spend by identifying inactive, unreachable, unsupported, or low-quality contacts before sending SMS, WhatsApp, email, or other outreach campaigns.
NumberChecker.cloud's answer
NumberChecker.cloud uses a secure web platform, bulk CSV processing, contact verification workflows, API-ready architecture, and structured reporting/export tools. The technical stack is intentionally kept private for security and operational reasons
Share your experience with using NumberChecker.cloud and Scratch. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of NumberChecker.cloud yet. Be the first one to post
Scratch lets students create interactive stories, games, and animations. The coding projects allow students to experiment and express their ideas, developing 21st-century skills like computational thinking and...
It can even permit anyone to access its junior program through which kids can learn how to make any app by taking their focus on the study related to programming. Scratch also comes with facilitating users with the...
Scratch, created by MIT students, teaches coding by allowing students to create tales, games, and animations using programming blocks. There is a vibrant online community as well as a step-by-step tutorial to assist...
Recommendations tracked on public social media and blogs since March 2021.


Tracking NumberChecker.cloud since Jun 2026.
Here's how teaching kids goes without scratch: "This is python, we use it to do professional development work. Here's VS code, we use it to do professional development work. Let's learn them." 6 year olds: "Okay!" Proceeds to mangle... - Source: Hacker News / 7 days ago
What I wonder is: why has nobody noticed that code editors lack a concept of 0? When you're writing code, you can express any concept except that of an unfilled hole. We've rearranged every part of the coding process in a twisted-up way,... - Source: Hacker News / 22 days ago
Sounds like Scratch: https://scratch.mit.edu/. - Source: Hacker News / 4 months ago
When comparing NumberChecker.cloud and Scratch, you can also consider the following products.

CheckNumber.AI provides professional and free WhatsApp number check online service, and provides a professional WhatsApp Number Checker API that can quickly check and detect WhatsApp number in bulk.
Compare CheckNumber.AI to NumberChecker.cloud or Scratch:

Code.org is a non-profit whose goal is to expose all students to computer programming.
Compare Code.org to NumberChecker.cloud or Scratch:

Instantly verify phone numbers, emails, and social media accounts across WhatsApp, Telegram, Instagram, Facebook, and 10+ platforms. Fast, secure, and accurate.
Compare NumberCheck to NumberChecker.cloud or Scratch:

Feature-packed 2D and 3D open source game engine.
Compare Godot Engine to NumberChecker.cloud or Scratch:
Bulk Check & Filter Number List(WhatsApp、Telegram、instagram、Facebook、Amazon、Apple)
Compare numberchecker.ai to NumberChecker.cloud or Scratch:

GDevelop is an open-source game making software designed to be used by everyone.
Compare GDevelop to NumberChecker.cloud or Scratch: