Four engines. One system.

Scroll to meet each one.

01

AI Business Automation

Nobody waits for an answer.

  • AI call agent
  • AI messaging system
  • Custom AI automation
See how it runs

02

AI Content Creation

Made to be measured.

  • Image content
  • Lead magnets: PDF and ebook
  • Short and long form video
See how it runs

03

Ads

Spend that comes back.

  • Facebook and Instagram
  • Google and YouTube
  • TikTok
See how it runs

04

Data & Analytics

One number, one meaning.

  • Web analytics
  • GA4, GTM, server side
  • Decisions you can defend
See how it runs

Four engines. One system.

We build the machinery that grows your business, then we show you the numbers it produced.

The full picture

Five minutes on how the four engines fit together.

Sultanul walks through the whole system, one engine at a time. No slides, no pitch, just the machine explained.

The main walkthrough 5 min 11 sec

01

AI Business Automation

Reply in 10 seconds. Never lose a lead to silence.

Leads contacted within 5 minutes are 21× more likely to qualify than those contacted after 30 minutes. We build the systems that make 5 minutes look slow.

  • AI call agent. A voice agent that picks up on the first ring, qualifies the caller, and books the call.
  • AI messaging system. Instant, on brand replies across WhatsApp and Messenger, so no lead waits.
  • Custom AI automation. If it is repetitive, we automate it. CRM updates, task creation, follow up sequences.
  • No code integrations. Zapier, Make.com, Google Apps Script and custom APIs.
Open the automation engine
Business system automation 1 min 33 sec

02

AI Content Engine

Content that converts. Data that proves it.

We build content strategy on real audience behaviour, then measure it down to the conversion, so every piece earns its place.

  • Static content. Image content built for the feed it lands in, on brand every time.
  • Video content. Short form and long form, avatars and storytelling, produced end to end.
  • Tagged and attributed. 100% of content tagged, so you know which piece drove the lead.
  • Always testing. Hooks, formats and distribution, improved on a loop.
Open the content engine
AI content engine 58 sec

03

Ads

Now, digital marketing is a content and data game. Play these perfectly, and you win.

We turn ad spend into predictable, scalable revenue across Meta and Google, with audits, modern builds and reporting you can read.

  • Facebook and Instagram. Built on Meta's latest campaign architecture, audited before a dollar moves.
  • Google and YouTube. Performance Max, Search and YouTube, structured for intent and ROAS.
  • TikTok. Creative built for the platform, not resized from somewhere else.
  • Weekly report and audit. Clear numbers plus what we will change next.
Open the ads engine
Ads and data 1 min 17 sec

04

Data & Analytics

Your data is your competitive advantage.

GA4, Google Tag Manager, server side tagging and Meta CAPI, set up correctly, governed properly, and reported so you can actually decide.

  • GA4 implementation. Events, custom dimensions and conversions set up right.
  • GTM container. Triggers, tags and variables, organised, not tangled.
  • Meta CAPI. Server side events and strong event matching.
  • Dashboards and reports. Looker Studio views plus automated weekly reports.
Open the data engine
A dark instrument panel showing measurement traces converging into one clean readout
One source of truth No more conflicting numbers

Try it

Hold to start the engines.

This is what we do, in one gesture. Press and hold. Let go early and it winds back down.

More qualified leads when you reply in 5 minutes
0s
Typical first response time once the system runs
0
Engines running as one system, not four services
0+
Projects delivered for brands across America and Europe

That is the whole system, running.

The receipts

Marketing only works when it is measured.

Every decision traces back to data. If we cannot measure it, we do not claim it.

0+
Projects delivered
0.0/5
Average client rating
5
Typical ROAS range for education sector clients
0%
CAC after migrating to a modern campaign structure

Founder & CEO

Sultanul Arefin.

The person who keeps the receipts.

Sultanul Arefin, founder and chief executive of Let's Analytix
Sultanul Arefin
Founder & CEO

Sultanul Arefin founded Let's Analytix in 2024 and runs it on one rule: if we cannot measure it, we do not claim it. He works with 20+ clients across America and Europe, and heads digital at Professional School of Business.

Anyone can take the microphone. Fewer can show what happened after. I keep the receipts.
  • Founder and CEO, Let's Analytix, since 2024
  • Head of Digital, Professional School of Business
  • Governing Body Member and Deputy Chief of Training, Bangladesh Red Crescent
Visit arefinsultan.com

What clients say

Real projects. Real words.

Client video review 33 sec

Professional School of Business

Muhiuddhin Sumon

Chief Executive, PSB

Website design, automation and social media marketing, in his own words.

★★★★★

Great guy, helped a lot! and what's most important, very professional!

vakhochelshvili United States · Repeat client
★★★★★

Amazing work, communication and delivery.

emmajonnz Canada
★★★★★

Arefin98 handling the task very professionally and delivered it as requested

syahhuda United Arab Emirates · Repeat client
★★★★★

very patient with me because it is very difficult to communicate with different time zones but he manages to do that, he is very patient he fix my shop and he is perfect I want to work with him again if I can.

shacarlarobinso United States · Repeat client
★★★★★

he is very good, fast and professional i will hire him again

katinobi South Africa
★★★★★

Young and talented.

mckinneyre United States
★★★★★

Great guy, quick delivery

ali1983k United States
★★★★★

Muito Obrigado por Me ajudar neste Projecto exemplar profissional sempre disponível e dedicado de certeza que irá trabalhar mais vezes comigo Muito Obrigado pelo seu trabalho Excelente

rubengomes214 Portugal
★★★★★

Good Experience With you.

shahadatdm Bangladesh
★★★★★

Great work.

salvarez188 United States · Repeat client

Reviews as written by the clients, from Sultanul's freelance profile.

Straight answers

The questions we get before people sign.

No. Most people start with one, usually automation or ads, because that is where the leak is. The four are built to work as one system, so adding the next one later costs less than starting it cold.

Because spend built on broken tracking teaches the platform the wrong thing. We read the past campaigns and check the pixel and CAPI setup before a dollar moves. If the account is already clean, the audit takes a day and we say so.

Automation shows up first, usually inside the first two weeks, because reply time changes the moment the system goes live. Ads and content take a full reporting cycle before the numbers mean anything.

A small team, with Sultanul on the account. You are not handed to a junior after the sales call. That is the whole reason the agency stayed small.

Weekly. Plain numbers, what moved, and what we are changing next. You get a Looker Studio view you can open any time, plus the written note.

Yes. Most clients are in America and Europe. Time zones are handled by the reporting cadence and the automation, so nothing waits on an overlap window.

One clear next step

Book a consultation.

Tell us what you want to grow. We will tell you which engine to start with, and what it would take.

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