New user credit availableContact support
AppShai Research

Practical answers for bulk number-checking workflows

Learn what each check means, prepare reliable TXT input and keep registration, activity, unknown and exception results in the right context.

These guides document supported workflows and interpretation boundaries. Live fields, task status and final credit deduction are confirmed in the signed-in dashboard.

Facebook1 min

Data Minimization in Facebook Number Checking Is More Than Removing One Column

Apply a lightweight privacy impact assessment to purpose, input, rejoining, retention and stopping for Facebook registration checks.

Read guide
Facebook1 min

Facebook Verified vs Registration Check: What the Free Identity Badge Does Not Reveal

Separate the Facebook Verified badge from FB Registration checking: the badge is not a checker field, while registration observation does not verify personhood, trust or ownership.

Read guide
Facebook1 min

How to Clean Historical Facebook Leads: Provenance, Permission, Phone, and CRM

Triage years of Facebook inquiries by evidence strength, repairing provenance, permission, phone versions and duplicate contacts without reactivating unexplained records.

Read guide
Facebook1 min

How to Connect Facebook Leads and WhatsApp Number Checking Without Breaking Attribution

Connect Facebook lead IDs, WhatsApp permission and number-checking output in CRM while preserving campaign attribution and suppression evidence.

Read guide
Industry News1 min

Can You Check WhatsApp Numbers After Usernames? Privacy, Reservation, and Task Limits

WhatsApp usernames provide a privacy-preserving contact handle while accounts still use phone numbers; number checking does not become username search or directory lookup.

Read guide
Facebook1 min

How to Check Facebook Lead Phone Numbers: TXT, Excel, and CRM Write-Back

Move same-day Facebook form leads through lead IDs, country evidence and permission into TXT, then write FB Registration Excel to an observation layer without overwriting attribution.

Read guide
Industry News1 min

Five Number-Checking Mistakes Across WhatsApp, Telegram and Viber

Five failure patterns that corrupt messaging-platform checks: wrong country normalization, one schema for every platform, false nulls, unsafe CRM joins and consent leakage.

Read guide
Facebook1 min

Can a Facebook Verification Badge Identify Real Buyers?

A Facebook verification badge addresses account authenticity—not purchase intent, phone validity, platform registration or marketing consent. Learn which signal answers which question.

Read guide
Facebook1 min

Facebook Verified Badges vs FB Number Checking: Eligibility and Boundaries

Understand Facebook badge routes and why FB registration checking returns only phone number and registration status—not badges, identity or buyer intent.

Read guide
Industry News1 min

Can Number Checking Find KOLs? Platform Status vs Influence Evidence

WhatsApp and Telegram checking can return platform fields, but it cannot identify KOLs. Influence requires audience, content, engagement, fit and authenticity evidence.

Read guide
Industry News1 min

WhatsApp vs Telegram vs LINE Number Checking: Choose by Task and Fields

Compare WA/WS, TG and LINE registration, activity and profile-related tasks, then choose by business question and exact output fields.

Read guide
Facebook1 min

Facebook vs Messenger Number Checker: Field and Use-Case Differences

Facebook and Messenger Registration Checks both return phone and registration status, but their platform signals, CRM fields, and use cases must remain separate.

Read guide

60+

supported platforms

220+

countries and regions

98%+

operational checking accuracy

First-party operational figures last reviewed in August 2026. Individual task results depend on input quality and live availability.

Join AppShai

Connect global social platforms
Work with the audience you need

Sign up / Log in
WhatsApp
WhatsApp
Telegram support
Telegram support
Telegram channel
Telegram channel