
WhatsApp
Signal
Slack
Element.io
Discord
Facebook Messenger
Tox
Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Which is more popular?
Based on our record, Telegram seems to be more popular. It has been mentioned 139 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | telegram.org | zip-codes.com |
| Pricing | — | |
| Company | Startup from the United Arab Emirates · 10 - 19 employees · 2013 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Telegram yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

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

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Why this product is good
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Overall verdict
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Walkthroughs and reviews on video.
WhatsApp vs Telegram vs Signal: Which is the BEST?!
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External articles and on-site reviews we used to compare the two products.

If you're looking for a Telegram alternative that actually does a lot of the same things, Facebook Groups is an option. Like Telegram, Facebook lets you cultivate large groups of people ("members") and curate content...
Telegram features all of the main communication features of Facebook’s DM service, such as text chats, voice calls, fun stickers (you can make Telegram stickers), and media attachments. It also supports group calls...
Apart from that, Telegram is fast, reliable, and packs features like large group chats, broadcasts, file and media sharing with incomparable size limitations and more. It also features cloud syncing so that you don’t...
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Recommendations tracked on public social media and blogs since March 2021.

Anyway, copying and reproducing is a great way to learn. It also train the mind to decompose every applications in small pieces. The same could have been done for Briar, SimpleX or Telegram applications, all of them are open-source and... - Source: dev.to / 5 months ago
In fact, as of today, Anthropic officially shipped this as Claude Code Channels — a plugin-based feature that lets you push messages from Telegram or Discord into a running Claude Code session on your machine. Your session processes the... - Source: dev.to / 8 months ago
Nowadays, messaging apps are ubiquitous. It’s quite possible that at least one message from such a service just buzzed in your pocket a moment ago. So why not to send a message to a chat group where your friends or customers can act on... - Source: dev.to / over 1 year ago
Tracking ZIP Code API since May 2026.
When comparing Telegram and ZIP Code API, you can also consider the following products.

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Fast, simple & secure messaging. Privacy that fits in your pocket.
Compare Signal to Telegram or ZIP Code API:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
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A messaging app for teams who see through the Earth!
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Telegram or ZIP Code API: