Software Alternatives, Accelerators & Startups
Register | Login

SlickText VS ZelNum

Compare SlickText VS ZelNum and see what are their differences

Auto Form CRM
The all-in-one WordPress CRM plugin. Manage contacts, close deals, automate workflows, send email campaigns, and schedule meetings โ€” all inside WordPress. featured
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.
Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

SlickText logo SlickText

Slick Text provides businesses and organizations with an easy and affordable platform for text message marketing.

ZelNum logo 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.
  • SlickText Landing page
    Landing page //
    2023-10-04
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27

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 duplicate or invalid records.

Run phone- and email-based account-signal checks across WhatsApp, Telegram, Facebook, TikTok, iMessage, RCS, Zalo, LINE, Viber, Instagram, LinkedIn, Snapchat, Signal, BAND, Amazon, Apple ID, and Microsoft, together with supported crypto exchanges such as Binance, KuCoin, CoinW, and HTX.

Depending on the product, workflows can include activity, account-age, username, and selected profile signals. Export structured segments for list cleaning, CRM preparation, messaging operations, community management, and data workflows.

Developers can use task-based APIs for batch submission, status monitoring, and result retrieval.

SlickText

Website
slicktext.com
Pricing URL
Official SlickText Pricing
$ Details
-
Platforms
-
Release Date
-
Edit details

ZelNum

Website
zelnum.com
Pricing URL
Official ZelNum Pricing
$ Details
freemium $1.0 (10,000 WhatsApp number checks)
Platforms
Web REST API SaaS
Release Date
2026 May
Edit details

SlickText features and specs

  • User-Friendly Interface
    SlickText offers an intuitive and easy-to-navigate interface, making it simple for users to manage their text message marketing campaigns without extensive technical knowledge.
  • Robust Features
    The platform provides a variety of features including SMS scheduling, keyword management, auto-replies, and integrations with other marketing tools, offering a comprehensive solution for text marketing needs.
  • Compliance Tools
    It includes compliance management tools to help users adhere to regulations such as the TCPA, ensuring that their marketing practices are legal and ethical.
  • Strong Customer Support
    SlickText offers reliable customer support through various channels including phone, email, and live chat, which ensures that users can get help whenever they need it.
  • Analytics and Reporting
    The platform provides detailed analytics and reporting features that allow users to track the performance of their campaigns, making it easier to optimize future efforts.

Possible disadvantages of SlickText

  • Cost
    While SlickText offers a range of pricing plans, some users may find the higher-tier plans to be expensive, especially small businesses or startups with limited budgets.
  • Learning Curve
    Despite its user-friendly interface, the extensive features and advanced options can pose a learning curve for new users who are not familiar with text marketing platforms.
  • Keyword Limitations
    Lower-tier plans offer a limited number of keywords, which may restrict the flexibility and segmentation capabilities for businesses with diverse marketing needs.
  • Limited International Reach
    SlickText primarily focuses on the U.S. market and may have limited capabilities for international text marketing, affecting businesses with a global audience.
  • Integration Complexity
    While SlickText offers various integrations, some users may find the setup process to be complex or cumbersome, requiring additional technical support to fully utilize these features.

ZelNum features and specs

  • 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 Checksใ€‚
    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 of ZelNum

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

SlickText videos

+ Add

Slicktext Review: Text SMS Message Marketing

More videos:

  • Review - WATCH!! Why I Chose SlickText Over the Other texting platforms
  • Review - Best Text Marketing Software: Slicktext.com Review

ZelNum videos

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

Add video

Category Popularity

0-100% (relative to SlickText and ZelNum)

SlickText

ZelNum

SMS Marketing
100 100%
SMS Marketing
0% 0
Data Validation
0 0%
Data Validation
100% 100
Business Text Messaging
100 100%
Business Text Messaging
0% 0
Phone Number Validation
0 0%
Phone Number Validation
100% 100

Questions & Answers

As answered by people managing SlickText 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 SlickText and ZelNum. For example, how are they different and which one is better?
Log in or Post with

What are some alternatives?

When comparing SlickText and ZelNum, you can also consider the following products

SimpleTexting - SimpleTexting offers SMS and text marketing services for companies of all sizes.

CheckNumber.AI - 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.

EZ Texting - EZ Texting provides SMS marketing solutions to businesses of all sizes.

Numverify - Global phone number validation and lookup API

Textmagic - Send time-sensitive texts and email campaigns, track results, and manage your business conversations on the most popular channels.

Lookup by Twilio - Know the details behind every phone number

Loading...