
Intercom
Tidio
tawk.to
Zendesk
LiveChat
Freshdesk
Drift
Multi-channel customer support software

Abstract APIs
Numverify
mailboxlayer API
IBAN.com
VAT-calc.net
Melissa Data Quality
MailValidation.io
A powerful REST API for validating emails, IBANs, BIC/SWIFT codes, LEI, ISIN, credit cards, VAT numbers, phone numbers, and 70+ more validators. Free tier available.
Which is more popular?
Based on our record, Crisp Chat seems to be more popular. It has been mentioned 13 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | crisp.chat | isvalid.dev |
| Pricing | ||
| Platforms | ||
| Company | Startup from France | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Companies have to deal with the increasing number of communications' channel that they have to handle in order to support their customers, furthermore, speed has become a key factor in generating a high satisfaction degree. Crisp has been built for SMB's in order to help them better scale their...
IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes),...
What each product offers, as listed by its team.


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


No analysis of Crisp Chat yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Crisp Chat and IsValid.dev.
IsValid.dev's answer:
IsValid offers 70+ validators in a single API — covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.
IsValid.dev's answer:
Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.
IsValid.dev's answer:
Developers and software teams building applications that handle user input, financial data, or international identifiers — particularly in fintech, e-commerce, and SaaS products.
IsValid.dev's answer:
IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.
IsValid.dev's answer:
Next.js, Fastify, PostgreSQL, Docker
Share your experience with using Crisp Chat and IsValid.dev. 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've moved from Helpscout to Crisp and we're delighted. Their team is very nice.
Crisp is another chatbot software and a great free alternative to ManyChat. The platform allows you to score potential customers, route conversations to appropriate teams, and tailor messaging based on visitor choices...
Another powerful Tawk.to free alternative is Crisp, which enables your website to work 7/24 and in many languages. Remember developing customer experiences should tend to be seamless. Another exciting thing about...
We have no reviews of IsValid.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Some things just work. Our frontend is still Nuxt with Typescript and Tailwind (RIP). Our backend is still Go with Go-Gin. We still run on Hetzner bare-metal and use Firecracker for virtualization. Terraform still manages our... - Source: dev.to / 8 months ago
Importantly, in practice, most production "Chat" windows on websites were not fully automated. They were a blend of machine + human, where the chatbot handled basic queries and human agents stood by to take over for complex requests.... - Source: dev.to / about 1 year ago
It seems to be using https://crisp.chat/en/. - Source: Hacker News / about 1 year ago
Tracking IsValid.dev since Apr 2026.
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