Klu

Klu

Klu Technologies Oy · Coding · Productivity

Klu is a browser-based AI sales simulator. Reps roleplay cold calls out loud with an AI buyer, then get coaching on the exact line that lost the deal.

Interface preview of Klu

About Klu

What Is Klu

Klu is a practice tool for sales calls. You open it in a browser, pick a scenario, and talk out loud to an AI buyer who answers, interrupts, and pushes back the way a real prospect does. When the call ends, you see what you said and where the conversation turned. Then you run the same call again.

The company behind it, Klu Technologies Oy, is based in Finland and started in 2023 with a different product: an internal search engine that pulled answers from Slack, Notion, Gmail, and Google Drive. It later moved into meeting notes and voice tools. The sales simulator arrived in March 2026, and the site now builds everything around that single loop of roleplay, coaching, and retry.

That focus sets the limits. Klu is built for one rep practicing alone, not for a sales department that needs seat management and team analytics. The free trial runs three days and covers two sessions of up to five minutes. Pro costs $19 a month for twelve sessions, ten minutes each, and three real call uploads a day. Everything happens in the browser, with a desktop app still in progress.

Getting Started

  1. Open klu.so and start the free trial. No card is required, and the example objection on the landing page works without an account or a microphone.
  2. Pick a scenario from the library or answer the short objection quiz to see how you'd handle a budget pushback.
  3. Allow microphone access and speak at a normal volume. The AI buyer responds in real time, so pausing to read notes breaks the rhythm the tool is trying to train.
  4. Read the review when the take ends. It shows your talk ratio, how many questions you asked, whether the objection was handled, and the moment the call turned.
  5. Run the take again with the suggested line, or upload a recording of a real call to turn that prospect into a custom lesson.

Product Information

A quick look at Klu's pricing, supported platforms, and performance.

Free PlanYes
Paid Plans$19/mo
PlatformWeb browser
DeveloperKlu Technologies Oy
CategoryCoding · Productivity
Release DateAug 2023
Latest UpdatedOct 2026
Website Visits6.1K
Website Global Rank3M
API AvailabilityN/A

Best for

The users, tasks, and scenarios where this tool fits best.

Users

  • Individual sales reps
  • Founders who run their own sales
  • New hires in their first weeks
  • Sales trainers who coach without a budget

Tasks

  • Cold call practice
  • Drilling objection handling
  • Sharpening discovery questions
  • Rehearsing one specific call

Scenarios

  • A warm-up before a day of dials
  • The week after a lost deal
  • A product launch or new pitch

Key features

Voice Roleplay With a Buyer Who Pushes Back

The core of the product is a spoken conversation, not a chat window. You talk into the microphone and the AI prospect answers with its own objections, hesitations, and interruptions. The landing page demo shows the tone: the buyer says the budget is frozen, and the tool waits to see whether you discount, defend, or ask what would need to change. Speaking out loud is the point, because reading a script silently trains nothing that survives a real call.

Scenario Library and Objection Quiz

Klu ships with lessons for the calls reps most often fumble: cold call openers, discovery questions, competitor objections, and booking the next step. Each lesson has a buyer with a role, a company context, and a hidden concern the rep has to uncover. A short quiz on the homepage lets you try one objection before signing up. The library is narrow by design, and custom lessons fill the gaps for unusual products or industries.

Take-by-Take Coaching

Every session ends with a review instead of a score alone. Klu reports your talk ratio, the number of questions you asked, whether the objection was handled, and the turning point of the call with a line you could have used. The next take gets one focus, such as asking one more question before comparing tools. This is more useful than a generic grade because it points at a specific sentence you can change on the next run.

Custom Lessons From Real Calls

You can upload a recording of an actual sales call, up to 50 MB and thirty minutes, and Klu transcribes it, turns the prospect into an AI buyer, and lets you practice that same conversation again. Audio formats include mp3, m4a, wav, mp4, and webm. You confirm you have permission to use the recording, and the audio is deleted once transcription finishes. If you don't have a recording, you can describe the call and let Klu write the lesson, or build it field by field from your own playbook.

Browser-Based Practice, Desktop App in Progress

There's nothing to install. The full roleplay and coaching loop runs in the browser, which means you can practice on a work laptop without involving IT. A desktop app for rehearsing next to your notes and CRM is listed as coming soon, and the site is explicit that it hasn't shipped yet. On a phone, the browser version works, but a quiet room and a decent microphone matter more than the device.

Pricing Without Seat Licenses

Klu sells to the rep, not to the department. Pro is $19 a month, billed monthly and cancellable at any time, with no demo call and no annual contract. The trial gives you two sessions over three days with one upload. Payments run through Dodo Payments as the merchant of record. For a team, that means each rep buys separately, and there's no consolidated bill or admin view.

Pros and cons

Pros

  • The practice loop is fast enough to repeat: one call, one review, one line to fix, then another take in the same sitting.
  • Voice roleplay exposes filler, rambling, and early discounting in a way that reading a script never does.
  • Uploading a real call turns a lost deal into a lesson built around the exact buyer and objection you faced.
  • At $19 a month with no contract, trying it costs less than most sales books and needs no procurement approval.
  • The review names a specific line to try instead, which is easier to act on than a general score.

Cons

  • Pro caps you at twelve sessions a month and ten minutes per session, so heavy drilling runs out before the month ends.
  • It's a solo tool. There's no team dashboard, no seat management, and no way for a manager to assign lessons or compare reps.
  • The desktop app isn't available yet, and the site doesn't publish data storage details beyond the promise that uploaded audio is deleted after transcription.
  • There's no public API or CRM integration, so practice stays in a separate tab instead of connecting to call review or pipeline data.

Frequently asked questions

Klu is an AI sales simulator that runs in a browser. You speak out loud to an AI buyer, handle its objections, and get a review of what you said, with a suggested line for the next attempt.