Lineaum OS

Lineaum OS

LINEAUM
Unavoidable CRM

Unavoidable CRM

Unavoidable Studio
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About

Lineaum OS is a business aviation platform that brings the entire commercial journey into one connected workflow, helping teams capture demand, source aircraft, quote clients, automate documents, collect payments, and track revenue without juggling inboxes, spreadsheets, and disconnected tools. A branded lead-capture widget turns a website into an always-on sales channel, feeding enquiries directly into the pipeline while keeping client ownership inside the business. Teams can source across more than 30,000 aircraft from over 10,500 operators, send quote requests, track operator responses, and generate client-ready quotes faster. It also automates contracts and invoices, supports connected payment workflows, and provides visibility into pipeline, booked value, revenue, and commissions. Lineaum organizes the sales process into clear stages, from capturing the first enquiry and finding the right aircraft to closing the booking and receiving payment.

About

Unavoidable CRM is a cloud-based customer relationship management system for small service businesses, including trades, clinics, cleaning and pest-control companies, tour operators and agencies. It brings enquiries and customer conversations into a shared workspace, with an AI receptionist for answering and booking calls, missed-call text-back, and an inbox for SMS, WhatsApp, email and phone calls. Teams can manage leads through a sales pipeline, schedule appointments, automate follow-ups, prepare quotes and invoices, collect payments through Stripe, and chase overdue balances. The system also supports booking and customer records, helping smaller operators coordinate work from first enquiry through payment. Plans include the same core features and differ by user allowance and white-label options. Usage-based charges for calls, messages and AI receptionist minutes are billed separately at provider cost.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Private aviation brokers, operators, travel agencies, and concierge businesses that need to manage aircraft sourcing, quotes, contracts, payments, and revenue in one workflow

Audience

Small UK service businesses, including trades, clinics, cleaning and pest-control firms, tour operators, and small agencies.

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$295 per month
Free Version Not Supported
Free Trial Not Supported

Pricing

£29/month
Solo costs £29/month for 1 user and up to 1,000 contacts. Team costs £149/month for 5 users and up to 10,000 contacts. Agency costs £399/month for unlimited users and contacts and includes white-label options. All plans include every feature; annual billing saves 20%. The free trial lasts 14 days and requires no card. Texts, calls, AI receptionist minutes, and email sending are billed separately at provider cost, with no markup.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

LINEAUM
Founded: 2026
United Kingdom
lineaum.com/en/business-aviation-platform

Company Information

Unavoidable Studio
Founded: 2026
United Kingdom
unavoidablecrm.com

Alternatives

Alternatives

Ringmere

Ringmere

Ringmere (Peoplely Ltd)
FlyEasy

FlyEasy

Tuvoli
Wattle AI

Wattle AI

MOONSHOT VENTURES PTY LTD
Charter Operators

Charter Operators

SeaGil Software Company

Categories

Aviation Supported

Categories

CRM Supported

Integrations

GoCardless Not Supported
Google Calendar Not Supported
Mailchimp Not Supported
OpenRouter Not Supported
Postmark Not Supported
QuickBooks Online Not Supported
Retell AI Not Supported
Stripe Not Supported
Twilio Not Supported
WhatsApp Not Supported
WooCommerce Not Supported
Xero Not Supported

Integrations

GoCardless Supported
Google Calendar Supported
Mailchimp Supported
OpenRouter Supported
Postmark Supported
QuickBooks Online Supported
Retell AI Supported
Stripe Supported
Twilio Supported
WhatsApp Supported
WooCommerce Supported
Xero Supported
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