Odoo  vs Calendly

QuickBooks Online

QuickBooks Enterprise

NetSuite

QuickBooks Online is an all-in-one online business software designed to help manage business finances. The platform is built to scale businesses, unlocking insights and providing the functionality of a larger team, all on one integrated platform.

QuickBooks Desktop Enterprise is an accounting software for small businesses which provides users with real-time access to customer, employee, and vendor information. The software includes tools for managing inventory, shipping, sales orders, pricing, tasks, invoicing, reporting, and more.

NetSuite is an AI-powered cloud-based business management suite. It helps organizations streamline their operations and gain real-time insights into their performance. The suite caters to a range of industries such as manufacturing, retail, and professional services.

Technical Assistant

Customer support could be a bit slow at times, especially if you’re on one of the lower-tier plans, which is frustrating when you need help quickly.

Support is great even if you are in the free level Odoo support is there to help you!

Marketing Head

Customer service support is prompt and very helpful to solve my issues.

Odoo CRM: Cloud, mobile, social and gamified. The leading Open Source CRM software helps you  track leads, close opportunities and get accurate forecasts.

360 Degree Feedback

Access Controls/Permissions

Accounting

Accounting Integration

Accounts Payable

Accounts Receivable

ACH Payment Processing

Activity Dashboard

Activity Tracking

Agile Methodologies

Aging Tracking

Alerts/Escalation

Alerts/Notifications

Applicant Tracking

Approval Process Control

Approval Workflow

Asset Lifecycle Management

Asset Tracking

Attendee Management

Audit Management

Audit Trail

Automated Quoting

Automated Routing

Automated Scheduling

Automatic Billing

Autoresponders

Backorder Management

Bank Reconciliation

Bar Chart

Barcode Recognition

Barcode/Ticket Scanning

Barcoding/RFID

Batch Processing

Benefits Management

Bid Management

Billing & Invoicing

Billing Portal

Bill of Material Analysis

Bills of Material

BOM Creation

Budgeting/Forecasting

Budget Management

Buy Side (Suppliers)

Calendar Management

Calendar/Reminder System

Calendar Sync

Campaign Management

Cancellation Management

Capacity Planning

Cash Management

Catalog Management

Change Management

Check-in/Check-out

Check Writing

Client Management

Client Portal

CMS Integration

Collaboration Tools

Color Codes/Icons

Commenting/Notes

Compatibility Testing

Compensation Management

Completion Tracking

Compliance Management

Configurable Workflow

Contact Database

Contact Management

Content Management

Contingency Billing

Contract Drafting

Contract/License Management

Cost-to-Completion Tracking

Cost Tracking

Credit Card Processing

Custom Development

Customer Database

Customer History

Customer Portal

Customer Segmentation

Customizable Branding

Customizable Fields

Customizable Forms

Customizable Invoices

Customizable Templates

Dashboard

Data Extraction

Data Import/Export

Data Modeling

Data Synchronization

Data Visualization

Debugging

Delivery Management

Delivery Tracking

Demand Forecasting

Deployment Management

Design Management

Digital Signature

Discount Management

Reviews for Odoo come from a wide variety of industries, including information technology and services (12% of reviewers), computer software (9%), and retail (5%). The most frequent use case for Odoo cited by reviewers is CRM (35% of reviewers).

Users and use cases

Reviewers indicate that Odoo’s free Community version is valuable for small businesses, and some users report the open-source customization as a cost-saving advantage. However, some reviewers feel costs escalate quickly with more modules, users, or advanced features.

Value for money

Odoo is a CRM solution offering key features such as billing and invoicing, inventory management, and sales pipeline management, among others.

Open Source

Odoo 

Web-based

Windows

iPad

Android

Linux

iPhone

Zoho CRM

ERPNext

SAP S/4HANA Cloud

Dynamics 365

Zoho One

SAP Business One

Salesforce Sales Cloud

HubSpot CRM

Sage Intacct

Sage 50 Accounting

Zoho Desk

Bitrix24

WordPress

SAP Concur

Shopify

Acumatica Cloud ERP

Standard

Custom

Challenging updates and upgrades

Owner

Also, there are so many versions of Odoo and not enough training documentation when they update to a new version.  

74% of reviewers feel negative about Odoo’s updates and upgrades. Users report that upgrading to new versions is often time-consuming, technically complex, and can break customizations or integrations. Reviewers say frequent updates sometimes introduce new bugs or compatibility issues, making maintenance difficult. They indicate that inconsistent communication about upgrade timelines and lack of clear documentation add to the frustration. Some users find that forced upgrades, especially in SaaS versions, can disrupt workflows and require additional resources to resolve problems.

Payment and billing frustrations

Co-Founder

For over 50 days I had no access to the service I paid for, was repeatedly handed between teams, and promises of rebates/credits went unfulfilled.

We signed up for their subscription at $13.60/month, only to be charged over $30 in the second month despite not adding any apps or users.

73% of reviewers feel negative about Odoo’s payment and billing processes. Users report issues with unexpected charges, lack of transparency in billing, and difficulty accessing or understanding invoices. Reviewers say that paid features and support can be expensive, and additional costs often arise for customizations or extra users. They indicate that payment disputes are hard to resolve, and some users feel their accounts or data are at risk if payments are delayed. Some reviewers find that integrating payment gateways or managing subscriptions is cumbersome and not always straightforward.

Slow email support response

The response time for service issues is too much

Director

They took their time (before signing up they responded in 24 hours) to reply despite many emails and always rejected my request saying their system is good enough for my company.

59% of reviewers feel negative about Odoo’s email response times. Users report that support tickets and email inquiries often take days or even weeks to receive a reply, leading to delays in resolving urgent issues. Reviewers say that communication is inconsistent, with some tickets closed without resolution or clear explanations. They indicate that it is difficult to reach support directly by phone, and multiple follow-ups are often required. Some users find that vague or unhelpful responses add to their frustration when seeking assistance.

Insufficient support documentation

Managing Director

As soon as I started giving him negative feedback on my initial experience (documentation was COMPLETELY out of date - Support had to send me a totally different workflow to get basic task of connecting bank accounts set up) and the fact that I was concerned what else might be out of date...he flippantly said that their docs are often outdated and that's just how it is....then HUNG UP on me mid-sentence (if line disconnected, I'd assume he'd call me back - but never did).

46% of reviewers feel negative about Odoo’s support documentation. Users report that official guides and manuals are often outdated, incomplete, or lacking detail for advanced features. Reviewers say that finding clear instructions for troubleshooting or configuration is challenging, especially for new users or non-English speakers. They indicate that reliance on community forums is sometimes necessary, but not always effective. Some users find that the lack of comprehensive documentation increases the learning curve and makes implementation or customization more difficult.

Frequent bugs and reliability issues

Odoo support didnt show the minimum responsibility regarding this big error and considered it as an inconvenience situation and the only thing they offered is to create a new account and told me to redo the wholework myself again. Since my contract with ADG is paused due to delay in project delivery several times.

73% of reviewers feel negative about Odoo’s bugs and reliability. Users report encountering frequent errors, glitches, and system crashes that disrupt daily operations. Reviewers say that some bugs persist for long periods without resolution, and support is often slow to address technical problems. They indicate that troubleshooting requires technical expertise, and integration with third-party apps can introduce additional issues. Some users find that inconsistent error messages and unreliable features make the platform less dependable for critical business tasks.

Comprehensive all-in-one ERP

Product Owner

Odoo provides a flexible, scalable, and cost-effective ERP solution that suits a wide range of business needs.

IT Administrator

Odoo is an open source ERP system, so it is easy to customize according to your needs, provides many pre-installed modules that are very useful and easy to handle and can be used in all types of companies from small to large corporations.  

95% of reviewers feel positive about Odoo’s ERP capabilities. Reviewers appreciate having a unified platform that covers all core business processes, from sales and inventory to HR and finance. They say the system is user-friendly, scalable, and cost-effective, making it accessible for both small businesses and large enterprises. Users indicate that the modular approach allows them to select only the features they need, while the extensive app marketplace supports further customization. Some reviewers find that Odoo’s ERP helps centralize operations, reducing the need for multiple disconnected tools and streamlining workflows.

Open source customization power

The best part about Odoo is its open-source software which you can download and run on your private server, which makes it more secure and reliable.

93% of reviewers feel positive about Odoo’s open source nature. Users appreciate the freedom to access and modify the source code, enabling deep customization to fit unique business requirements. Reviewers say the open-source model reduces licensing costs and provides greater control over implementation. They indicate that the active community contributes valuable modules and support, making it easier to find solutions and extend functionality. Some users report that being open source increases security and reliability, as they can host the system privately and adapt it without vendor restrictions.

Highly adaptable platform

President

The flexibility of the system allows us to tailor it to the needs of each of our businesses. And the support is AMAZING!

employee

In summary, Odoo is a powerful and flexible ERP software that can be adapted to suit the needs of businesses of all types.

89% of reviewers feel positive about Odoo’s flexibility. Reviewers appreciate the ability to tailor the system to their specific business processes, regardless of industry or company size. Users say the platform’s modularity and adaptability make it easy to integrate with other tools and customize workflows. They indicate that this flexibility supports changing business needs and allows for rapid adjustments as requirements evolve. Some users report that Odoo’s configuration options and extensibility help them create a solution that matches their unique operational demands.

Integrated inventory management

Erp Developer

The inventory management , stock list , stock details is awesome compared to miracle and also the interface is user-friendly

85% of reviewers feel positive about Odoo’s inventory management. Reviewers appreciate having inventory control integrated with other business functions, such as sales, purchasing, and accounting. Users say the system provides real-time visibility into stock levels, simplifies tracking across multiple locations, and supports efficient order fulfillment. They indicate that bulk import features, logical workflows, and automation help streamline inventory operations. Some users report that Odoo’s inventory management reduces errors, improves accuracy, and supports growth by handling complex requirements.

Streamlined process automation

HR Supervisor

businesses can customize and configure the system to suit their specific requirements, Its intuitive user interface and automation of business processes make it a popular choice for companies seeking an all-in-one solution.

network engineer

Thanks to Odoo, I save time by avoiding manual tasks and automating processes, which allows me to focus on higher value-added tasks.

87% of reviewers feel positive about Odoo’s process automation features. Users appreciate how the platform automates repetitive tasks across areas like HR, inventory, and sales, reducing manual work and minimizing errors. Reviewers say automation saves time, increases productivity, and allows employees to focus on higher-value activities. They indicate that integrated modules and customizable workflows make it easy to optimize operations and improve efficiency. Some users find that process automation in Odoo helps centralize data and supports better decision-making.

Lead Designer

Odoo’s biggest strength is its modular design...you can pick and choose what apps you need (CRM, inventory, accounting, project management, e-commerce, HR, etc.) and grow by adding more later.

Chief Product Officer and Co-Founder

I can access this system with my cell phone while sitting at the dentist office waiting. As we continue to expand into various countries and subsequently multiple currency accounts, odoo can manage them all. Since we transitioned away from quickbooks, the audit trail is much cleaner and the auditors can simply go through their process.

System Admin

It is an all-in-one suite that eliminates the need for multiple, disconnected software systems by centralising functions like CRM, sales, and accounting.

Omni Associate

Odoo also automates many stuffs such as invoicing, workflow approvals and follow ups which saves a lot of time.

Language Instructor

I required something that could provide student contacts, course billing and some minimal sales management without the sophistication of the enterprise package.

Its open-source flexibility allowed us to develop industry-specific modules and connectors like WooCommerce to Odoo integration, which we offer via our Prefortune app store.

Content Creator

Odoo delivers CRM, e-commerce, accounting, inventory, project management, website builder, and more in a unified platform for one subscription plan.

Odoo vs Calendly Comparison (2026)

Odoo

Calendly

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives