AOS

AOS

AOS Construction Software LLC
AOS Katchap

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AOS:

About

AOS is construction software that keeps project management, pay applications, accounting, field paperwork, compliance, and closeout on one job record instead of five tools. It is built primarily for mid-market general contractors and commercial subcontractors, with role-based workflows for owners, developers, architects and engineers, residential builders, and permit expediters. Teams manage drawings, RFIs, submittals, schedules, change orders, daily logs, vendor prequalification, materials, accounts payable, and lien-waiver tracking from the project record. Pay applications are generated from the schedule of values, with retainage and stored materials. Pricing is a flat monthly fee, not a percentage of construction volume; the GC Launch Pack is capped at 50 active projects during beta, with some capabilities offered as add-ons or on request.
Katchap:

About

Katchap is construction site management software for project and field teams. It organizes work around project drawings, linking spaces and trades with progress updates, photographs, notes, inspections and issues. Teams can manage document folders and revisions, track observations and hold-ups, coordinate requests for information (RFIs) and submittals, and review project activity through reports and analytics. Depending on plan, Katchap also includes drawing revision comparisons, approval workflows, 360-degree capture and a daily site diary. The browser-based service is available alongside iOS and Android apps, with offline access to selected project information for site work. Main contractors, project managers, site teams, subcontractors, consultants and owners can use role-based project views to keep site records and coordination in one workspace.
AOS:

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
Katchap:

Platforms Supported

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

Audience

Mid-market general contractors and commercial subcontractors.
Katchap:

Audience

Main contractors, project managers, site managers, subcontractors and consultants on construction projects
AOS:

Support

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

Support

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

API

Offers API Supported
Katchap:

API

Offers API Not Supported
AOS:

Screenshots and Videos

No images available
Katchap:

Screenshots and Videos

AOS:

Pricing

$500/month
The GC Launch Pack is $500 per month during open beta, as a flat monthly fee for up to 50 active projects. There are no per-user fees during beta. Signups by December 14, 2026 lock the beta rate through July 13, 2028. Estimating and ITB are paid add-ons; some other capabilities are available on request.
Free Version Not Supported
Free Trial Not Supported
Katchap:

Pricing

€29/user/month
Basic is free. Pro costs €29 per user per month when billed annually; annual charges are billed upfront and exclude VAT. A 30-day free trial is offered.
Free Version Supported
Free Trial Supported
AOS:

Reviews/Ratings

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

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Review this Software
Katchap:

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
AOS:

Training

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

Training

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

Company Information

AOS Construction Software LLC
Founded: 2024
United States
aos.build
Katchap:

Company Information

Katchap
Founded: 2026
Ireland
katchap.com
AOS:

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AOS:

Categories

Katchap:

Categories

AOS:

Integrations

SendGrid Supported
Twilio Supported
Katchap:

Integrations

SendGrid Not Supported
Twilio Not Supported
AOS:
Claim AOS and update features and information
Claim AOS and update features and information
Katchap:
Claim Katchap and update features and information
Claim Katchap and update features and information