
Intercom
Crisp Chat
Tidio
LiveChat
Zendesk
Freshdesk
LiveAgent
tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page

OpenAI
Gemini.com
LLM Cost Calculator
Gemini 2.5 Flash
GPT3 Crush
OpenRouter
SharpAPI
Estimate LLM API costs before you build — GPT-4, Claude, Gemini

Which is more popular?
Based on our record, tawk.to seems to be more popular. It has been mentioned 47 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | tawk.to | utilitylab.dev |
| Pricing | — | |
| Company | Startup from the United States | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of tawk.to yet.
Free browser-based tool to estimate API costs for GPT-4, Claude, Gemini, and open-source models. Calculate prompt, completion, and monthly token expenses before writing code. No sign-up required. AI Cost Simulator helps developers and teams estimate LLM API pricing before they ship. Select from...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Small to medium-sized businesses, startups, and entrepreneurs looking for a budget-friendly chat solution to engage with website visitors in real-time and improve their customer support experience.
No analysis of UtilityLab.dev yet.
Walkthroughs and reviews on video.
Tawk.to review — unbelievably rich live chat software for free
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing tawk.to and UtilityLab.dev.
UtilityLab.dev's answer:
Most LLM cost calculators are either spreadsheets or require signing up for an API. AI Cost Simulator is a free, browser-based tool that works instantly — no account, no installation, no data upload. It supports the widest range of models (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, DeepSeek V4 Flash, and more) with both per-call and monthly volume estimates in one view.
UtilityLab.dev's answer:
Vanilla JavaScript, HTML, and CSS — no frameworks, no bundlers. All cost calculations happen client-side. The tool is deployed as a static site on Cloudflare Pages for global low-latency access.
UtilityLab.dev's answer:
It's the only zero-friction cost estimator. Competitors either lock features behind sign-up walls, only support one model family, or require you to dig through separate pricing pages. AI Cost Simulator gives you a side-by-side comparison of all major LLM providers in one page — and everything runs locally in your browser, so your pricing data never leaves your machine.
UtilityLab.dev's answer:
Developers, indie hackers, and technical founders who are evaluating LLM APIs for their next project. Also product managers and engineering leads doing cost analysis before committing to a model provider at scale.
UtilityLab.dev's answer:
When building AI-powered features, we realized every model provider publishes pricing differently — per-token, per-character, per-request — and there's no single place to compare them. Instead of bookmarking five pricing pages and building a spreadsheet, we built a dead-simple comparison tool. We open-sourced the approach and made it free so other developers don't have to waste time doing manual math.
UtilityLab.dev's answer:
Since it's a free browser tool with no sign-up, we don't track individual users. It's used by developers and teams evaluating LLM costs across startups, agencies, and enterprise engineering teams.
Share your experience with using tawk.to and UtilityLab.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.


Tawk.to is a great solution for startups and small businesses. It’s a free live chat software that allows businesses to communicate with website visitors in real time, enhancing customer support and engagement. It...
Are you still searching for Tawk.to free alternatives? Can an alternative to Tawk.to overcome the challenges? Are Tawk.to alternatives free as well?
Crisp is a multichannel customer support platform. It’s a powerful Tawk.to alternative that is feature-rich and offers a great user experience. The platform includes live chat software and chatbots. But it also offers...
We have no reviews of UtilityLab.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I've tried tawk.to and created separate agent profiles for each dealer but I cannot find how to restrict access only to their listings so not everyone can join the others live chat as it happens atm. Has anyone tried something like... Source: over 3 years ago
Also, if possible, find their IP from tawk.to and block it in your firewall, or ask your hosting provider to block it. Source: over 3 years ago
I've used tawk.to in the past, but I wondered what else is out there / what others use and recommend. Source: over 3 years ago
Tracking UtilityLab.dev since Jul 2026.
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