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Scratch VS ZelNum

Compare Scratch VS ZelNum and see what are their differences

Scratch

Scratch is the programming language & online community where young people create stories, games, & animations.

Rating
5.0 · 1 review
Pricing
Open source
Alternatives Is it good?
ZelNum

Turn CSV/TXT lists into actionable segments with phone validation, carrier and HLR intelligence, messaging-app, social-account, and crypto-exchange checks, plus API workflows.

Rating
0 reviews
Pricing
Freemium $1 (10,000 WhatsApp number checks)
Alternatives Is it good?
ScholarSail
AI study tools that generate mindmaps, spaced-repetition flashcards, and 3D memory palaces from your notes. Built-in rich text editor, Pomodoro timer, and colored noise. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Scratch seems to be more popular. It has been mentioned 579 times since March 2021.

social mentions
579 vs 0
Kids Education popularity
100% vs 0%
alternatives listed
240+ vs 6

Base details

Website, pricing, platforms and company facts side by side.

Scratch
ZelNum
Website scratch.mit.edu zelnum.com
Pricing
Open source
Freemium $1 (10,000 WhatsApp number checks) Official pricing
Platforms —
Web REST API SaaS
Company 2007 2026
Listed in
Kids Education Programming Coding Learn To Code Game Development Community +3
Phone Number Validation Data Validation Data Enrichment WhatsApp +1

About Scratch and ZelNum

In their own words, as submitted to SaaSHub.

Scratch
ZelNum

No description of Scratch yet.

ZelNum is a self-service bulk verification and data-quality platform for phone intelligence, messaging apps, social and consumer accounts, and crypto exchanges. Upload CSV or TXT lists to check phone status, live activity, carrier and line type, HLR-style network signals, phone model, and...

Read more about ZelNum

Features and specs

What each product offers, as listed by its team.

Scratch 6 features
ZelNum 11 features
  • Engaging Interface
    Scratch offers a visually appealing and user-friendly interface that makes it accessible for kids and beginners to learn programming concepts.
  • Community Support
    The platform has a large and active community where users can share projects, get feedback, and collaborate with others, fostering a sense of community and support.
  • Educational Value
    Scratch is designed with a strong pedagogical foundation, helping users to develop problem-solving skills, logical thinking, and creativity.
  • Drag-and-Drop Programming
    The block-based coding in Scratch eliminates syntax errors and simplifies the process of learning programming logic, making it ideal for beginners.
  • Free to Use
    Scratch is completely free to use, which makes it accessible to a wide audience without any financial barriers.
  • Portable
    Being web-based, Scratch can be accessed from any device with an internet connection, providing ease of access and flexibility.

Possible disadvantages

  • Limited Advanced Capabilities
    Scratch is mainly designed for beginners and might not offer the depth or complexities needed for more advanced programming projects.
  • Performance Issues
    Larger projects can sometimes become slow or unresponsive, particularly on less powerful devices.
  • Simplified Programming
    The drag-and-drop nature of Scratch, while educational, might limit exposure to the syntax and intricacies of written programming languages.
  • Internet Dependency
    Scratch primarily requires an internet connection, which could be a limitation in areas with poor connectivity.
  • Age Focus
    The platform is highly targeted towards younger audiences, which might not be appealing or suitable for older learners or adults seeking beginner resources.
  • Privacy Concerns
    As with any online community, there are potential privacy and security risks, especially for younger users, which require careful monitoring and guidance.
  • Bulk Phone Validation
    Validate, normalize and segment phone numbers from CSV or TXT files.
  • Messaging App Checks
    Check selected phone-number and account signals across WhatsApp, Telegram, Facebook, iMessage, RCS, Zalo, LINE, and Viber.
  • Carrier and HLR Lookup
    Identify carrier, country, line type, and HLR-style network signals.
  • Phone Status and Activity Checks。
    Identify active, inactive, risky, and recently active numbers where supported.
  • Social Account Checks
    Check phone- and email-based account signals across Instagram, TikTok, LinkedIn, Snapchat, Signal, BAND, Amazon, Apple ID, and Microsoft.
  • Crypto Exchange Account Checks
    Check supported phone and email account signals across Binance, KuCoin, CoinW, and HTX.
  • Email Account Checks
    Check email-based account signals across supported platforms and services.
  • Phone Model Detection
    Detect the phone brand and model associated with a mobile number where available.
  • List Cleaning and Segmentation
    Remove duplicate or invalid records and export structured result segments.
  • CSV/TXT Bulk Uploads
    Upload contact lists for batch verification, cleaning, and segmentation.
  • REST API Workflows
    Submit batch tasks, monitor processing status, retrieve results, and integrate verification into applications.

Analysis

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

Scratch
ZelNum

Overall verdict

  • Yes, Scratch is generally considered good for its intended purpose. It serves as an excellent introduction to programming for young learners and is praised for its simplicity, ease of use, and educational value.

Why this product is good

  • Scratch is a visual programming language designed primarily for children and beginners to learn the basics of coding and computational thinking. It promotes creativity, logic, and problem-solving skills in a user-friendly environment. Scratch provides a platform for users to create interactive stories, games, and animations, which can be shared within an active online community, fostering collaboration and feedback.

Recommended for

  • Children aged 8-16 who are interested in learning programming
  • Educators and parents seeking to introduce coding concepts
  • Beginners in programming who prefer a visual approach
  • Anyone looking to explore digital creativity through interactive media

Overall verdict

  • BulkChecker.io appears to be a bulk email/domain verification tool designed to help users validate large lists of email addresses to reduce bounce rates and improve deliverability, but as I don't have verified, up-to-date information on this specific service, I'd recommend researching current user reviews, checking recent uptime/accuracy reports, and testing with a small sample before committing to a larger plan.

Why this product is good

  • Bulk verification tools generally save time by processing large email lists quickly compared to manual checks
  • Such services typically help improve email deliverability by removing invalid or risky addresses before sending campaigns
  • May offer API access for integration into existing workflows or CRM systems
  • Often provide tiered pricing that can scale with list size, potentially cost-effective for growing needs

Recommended for

  • Email marketers needing to clean large subscriber lists before campaigns
  • Businesses looking to reduce bounce rates and protect sender reputation
  • Developers wanting API-based email validation integration
  • Users who should independently verify current pricing, accuracy rates, and customer support quality before relying on this specific service

Videos

Walkthroughs and reviews on video.

Scratch 3 videos + Add
ZelNum 0 videos + Add

Scratch 3.0 Review: My Thoughts About Scratch 3.0

More videos

  • - Numark PT01 Scratch Review
  • - Meguiar's scratch X 2.0 review

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

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Scratch
ZelNum
100% 100%
Kids Education
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
Programming
0% 0%
0% 0%
WhatsApp
100% 100%

Questions & Answers

As answered by people managing Scratch and ZelNum.

Why should a person choose your product over its competitors?

ZelNum's answer:

ZelNum supports multiple verification types, usage-based pricing, downloadable result segments, and task-based API processing without requiring a subscription.

How would you describe the primary audience of your product?

ZelNum's answer:

Marketing teams, CRM operators, developers, agencies, community managers, and businesses that need to clean or enrich large contact lists.

What makes your product unique?

ZelNum's answer:

ZelNum combines phone validation, carrier lookup, WhatsApp and Telegram checks, and other account signals in one bulk CSV/TXT and API workflow.

User comments

Share your experience with using Scratch and ZelNum. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Scratch 5.0 · 1 review
ZelNum no reviews yet

View more

We have no reviews of ZelNum yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Scratch 579 mentions
ZelNum 0 mentions

View more

Tracking ZelNum since Jul 2026.

Alternatives to Scratch and ZelNum

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