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Custom CRM development for your business

A CRM built around how your team actually sells: calls from the client card with recording and transcription, every message in one place, website leads that never get lost. The key screens prototype is free, before any contract.

Timelinefrom 1 monthQuote after the prototype
Free, before the contractFree prototype ↗

A CRM is a database of clients and deals that shows the full history with each one: leads, calls, messages, payments. A custom CRM follows your own sales process instead of forcing you into someone else's logic.

Off-the-shelf CRMs work while your process matches their logic. When reps run half their work in messengers and spreadsheets and nobody knows which ads lead to real conversations, you have a system but no benefit from it.

We built that kind of CRM for ourselves. In the morning a rep sees who to call and when, calls from the card, the conversation is recorded and transcribed, and the outcome and next dated step appear on their own. Telegram and email history sit in the same card, an AI assistant preps for calls and drafts proposals, and the ad platform learns from leads that turned into real conversations.

What's included

01Client card

The whole history in one place: leads, recorded calls, messenger and email threads, documents, the next dated step.

02Telephony

One-click calls from the card, recording and transcription, incoming and missed calls straight into the client's history.

03Pipeline and daily plan

Deal stages that match your process, today's call queue, reminders and deadlines without duplicates.

04Website to CRM integration

Leads from forms, quizzes and chat land in the CRM with ad tags. None get lost between email and a rep.

05AI assistant

Call summaries, client dossiers, proposal drafts, deal scoring - where it saves time, not for show.

06Ad analytics

Cost per lead and per conversation, campaign ROI, offline conversions back to analytics.

Our CRM and team systems

All work ↗

EFIMOV CRM is our own working sales system; the case screens show demo data.

When you need a custom CRM

  • 01You have a CRM, but reps still manage clients in messengers and spreadsheets.
  • 02Your sales process is unusual: approvals, site visits, calculations that don't fit a standard pipeline.
  • 03Telephony, website, ads and messengers need to be connected and stock integrations can't do it.
  • 04You pay for licences and features nobody uses.
When an off-the-shelf CRM is enough

With a standard pipeline, a couple of reps and no special integrations, take amoCRM, Bitrix24 or similar: they launch in days and cost less than development. We'll help connect them to your site. A custom CRM pays off when the stock one gets in the way.

Off-the-shelf or custom

Off-the-shelf: amoCRM, Bitrix24

  • Live in a few days
  • Monthly fee per user
  • Your process adapts to the system
  • Integrations from a catalogue or via API
  • Cloud editions keep data with the vendor

Custom CRM

  • First version from one month
  • Built once, then hosting and optional growth
  • The system follows your process
  • Any connection: telephony, messengers, ads, ERP
  • Code and data are yours, on your server

How the work goes

  1. 012-3 daysSales process review

    How leads arrive, who handles them, where clients get lost - and what can be reused from existing tools.

  2. 021-2 daysFree prototype

    Client card and daily plan on an example of your data. Before any contract or payment.

  3. 031 dayQuote and plan

    A first version for the main process and what comes in later stages.

  4. 043-6 weeksFirst version

    Card, pipeline, website and telephony links, roles. A usable build every two weeks.

  5. 052-3 daysMigration and training

    Clients moved from spreadsheets or the old CRM, the team trained, us on call for the first days.

  6. 06ongoingGrowth

    AI assistant, analytics, new integrations - once the team is used to the basics.

Free: prototype in 1-2 days - before any contract or payment

I want prototype ↗

What custom CRM development costs

01Sales process

One pipeline for two reps versus several departments with different stages.

02Telephony

Calls from the card, recording, transcription and call review.

03Channels

Messengers, email, website chat - each one is connected separately.

04AI features

Call summaries, dossiers, drafts and deal scoring - plus monthly model costs.

05Data migration

Clients and history from spreadsheets or another CRM.

We quote after the prototype: a first version for the main process, then in stages.

No “from” and no hidden lines: one number, and we stick to it.

Get a free prototype ↗

What we need and what you get

What we need from you

  • How a sale goes today, from lead to payment
  • An export of clients and deals from spreadsheets or your current CRM
  • Access to telephony, the website and ad accounts
  • A sales lead or rep who can tell us what gets in the way

What you get

  • A CRM on your server and domain
  • Website, telephony and messenger connections
  • Roles for reps and managers
  • Daily backups and monitoring
  • Source code, access and a team guide

What we build it with

Python + FastAPIPostgreSQL / SQLiteTelephony APIWhisperClaude APITelegram APIAd analyticsamoCRM and Bitrix24 APIs

Mistakes we avoid

01An amoCRM clone

There's no point writing another generic CRM. We build what your process is missing.

02Everything in version one

Card, daily plan and website leads first. AI and reports come once the team actually works in it.

03Manual entry after calls

If the outcome has to be typed in, it won't be. Recording, transcript and summary land in the card automatically.

04No backups

The CRM is your client base. Daily backups and restore tests from day one.

FAQ

How much does a custom CRM cost?

We quote after a free prototype. The sales process, telephony, channels and AI features drive the price. The first version is estimated separately, then we grow it in stages.

How long does it take?

A first version for the main process takes from a month, then stages of 2-4 weeks.

Why not just use amoCRM or Bitrix24?

If your process fits them, do - we'll say so. A custom CRM is for when you keep working around the stock one: reps live in messengers, telephony and ads aren't connected, and you pay for licences you don't use.

Can you integrate the CRM with our website?

Yes, that's where we start: leads from forms, quizzes and chat land in the card with their source and ad tags. If you already use amoCRM or Bitrix24, we'll connect your site to it.

Can you migrate clients from the old system?

Yes. Clients, deals and history from spreadsheets or another CRM's export, checked so nothing is lost.

Who owns the CRM?

You do: code, server and database are in your name. No per-user monthly fee - just hosting and growth if you want it.

Sources: OWASP Top 10 - web application security risks · GDPR - official text of the regulation

Further reading

Blog ↗

Other services

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