AI Agents

An AI lead follow-up agent that never lets a lead go cold

We build AI lead follow-up agents for sales teams that lose deals to slow replies. Your agent answers every new lead within minutes, asks the right questions and books the call. At Mobile Monster, automated follow-up emails helped cut support tickets by 70%.

Client result: Mobile Monster: automated follow-up emails that helped cut support tickets by 70%
Typical timeline: Live in a few weeks

Book a free call Get a quote

14 years building software550+ projects delivered100% Job Success on Upwork

Trusted by founders and growing companies · 5+ years with Mobile Monster

What clients say

Clients stay with us for years

What we build

What you get with AI lead follow-up agent

Instant repliesAnswers new leads in minutes, day or night.
Smart questionsFinds out what each lead needs and how soon.
Follow-ups that stopKeeps in touch until the lead replies, then stops.
Booked callsPuts the meeting straight into your calendar.

Case study · Mobile Monster

80,000+ device buybacks a year, with 70% fewer support tickets

devices processed a year with little manual work: 80,000+; devices processed a year with little manual work
fewer support tickets about payments or delivery: 70%; fewer support tickets about payments or delivery

Read the case study

Mobile Monster's device trade-in website on a laptop

Tools we connect

Works with the tools you already use

We connect to your apps, data and AI models, so nothing has to change on day one.

Gmail
WhatsApp
Google Calendar
OpenAI
Claude
Zoho

How we make sure it's right

Senior quality on every project

Senior engineersExperienced engineers lead every project from start to finish.
AI-assisted, human-checkedWe build with AI coding agents, and an engineer reviews every line.
Design firstWe plan the screens and flows before we write code.
Tested before launchWe test each feature on real devices and real data.
You own everythingYour code, accounts and data stay yours, always.

Ways to work with us

Pick how you'd like to work together

Every project is priced to its spec after a free call. Pick a way to start, or ask us which fits.

Book a call

Fixed-scope project

We agree what gets built and when, then deliver it.

Best for a clear goal: an agent, an app or a feature with a launch date.

Dedicated team

Our engineers join your team and work on your roadmap.

Best for a roadmap that keeps going: our engineers work as part of your team.

AI agent build and care

We build your agent, then watch it and improve it every month.

Best for AI agents that should keep getting better after launch.

FAQ

Questions we hear

Straight answers to what people ask before they hire us.

Where do the leads come from?

Your website forms, ads, email and WhatsApp. The agent picks them up wherever they land.

Will it spam people?

No. It follows a polite schedule you agree, and it stops the moment someone replies or says no.

Does it update our CRM?

Yes. Every lead, reply and booking is logged in your CRM, like HubSpot or Zoho.

How does pricing work?

Every project is different, so we price it to your spec. Book a free call, and we send a custom proposal with a clear price.

Do you work in our time zone?

For US clients we commit to 4 hours of overlap with US business hours. We agree the meeting times at the start.

Do we own the code and data?

Yes. Your code, accounts, keys and data stay under your control. Nothing is shared across clients.

Related services

Let's talk