LT Browser by Lambdatest VS ForthWrite
Compare LT Browser by Lambdatest VS ForthWrite and see what are their differences
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LT Browser by Lambdatest
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With LT Browser, you can see mobile view of website on different screen sizes and resolution. With over 50+ devices to choose from, mobile website test hasn't been much easier. Use LT Browser and ensure that your website is mobile responsive. You can create your own custom devices and save it for future uses. Create new mobile, tablet or desktop devices and test website on various devices, screen resolution and perform screen resolution test for website on different screen sizes. You donโt have to switch between two devices to perform mobile website test. Test on two devices simultaneously with LT Browser and perform mobile website test on different tablet and desktop devices and inspect website on different resolution and resolution simultaneously. LT Browser comes with Dev Tool to debug multiple devices while performing responsiveness test on your devices simultaneously. Test website on various devices simultaneously with separate Dev Tools for each device.
ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.
How it works
ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.
Key features
Who uses it
Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.
Pricing
Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.
LT Browser by Lambdatest ForthWriteLT Browser is recommended for web developers, QA testers, and UI/UX designers who regularly work on responsive web designs. It's particularly useful for those managing projects where cross-device consistency is crucial. Additionally, it's beneficial for agile teams that require fast feedback loops and efficient collaboration.
ForthWrite's answer:
Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API
ForthWrite's answer:
ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.
ForthWrite's answer:
Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.
ForthWrite's answer:
Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.
ForthWrite's answer:
Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.
LT Browser is the new defacto tool for responsive testing requirements. Being a ecommerce company with wide audience we need to stay on our toes to keep our users bouncing because of a UI bug. LT browser has been helping us for the past 3 months with testing on the latest mobile view ports. And my favorite feature is instant local testing by simply adding the URL and side by side comparison of two devices. And best part of the debugging is that we can see the changes being reflected in real time
As website designers our team loves the way we can show all the progress to our clients. It helped us have a better transparency in our work. We can just screengrab the viewport and easily share it with clients. And the best part is the interface, it's intuitive enough that none of us have ever looked at the support doc. Ability to test the local url path and Integration with JIRA saves a lot of time and makes it easier to communicate within the team. Kudos Team LT Browser..!!
Responsive testing can be a really daunting task. To ensure that all media queries are working properly for specific screen sizes is bound to be time consuming. However, LT browser has made the task comparatively easy for me and my team. It enabled us to test on multiple pre installed devices in no time. Plus, we can test over 2 devices at the same time in a side by side view.
Our development team relies heavily over this tool since it offers hassle-free local testing experience, supports hot-reloading and offers developer tools to help us debug any UI bug on the go.
Even our design team loves the LT browser due to its intuitiveness. They are always intrigued to check if the changes are rendering well and as per the design or not after every release cycle. With LT browser, they can do it easily without having to install anything or dealing with developer tools mobile-view debugging
I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.
The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.
What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.
The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.
Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.
ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.
Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.
browserling - Live interactive cross-browser testing from your browser.
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CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.
Superhuman - Superhuman is an email management tool.
Browsershots - Browsershots makes screenshots of your web design in different browsers.
Shortwave - Email smarter & faster with a reinvented experience for your Gmail