250 users, lifetime subscription, on-premise version

Pricing & Licensing  

CloudSelf-hosted
"Pay-as-you-go" subscription options 
One-time fee 
Bitrix24 Cloud is SaaS (software as a service), licensed on a subscription basis 
Ownership of the license key is fully transferred to the end-user 
Unlimited user subscriptions are available 
1000-user packs are available 
Installation & Deployment 

CloudSelf-hosted
Quick start, no installation or ongoing maintenance 
Installation and deployment on a web server of your choice 
Instant web browser or mobile app access 
Requires corresponding hardware and software infrastructure 
Online storage space limit is set according to the subscription option 
Unlimited disk storage space (depends on your hosting provider's capacity and plans) 
Product Customization

CloudSelf-hosted
Custom logo (available in selected subscriptions) 
Custom logo 
Custom domain name (available in selected subscriptions) 
Custom domain name REST API
REST API, API n/a
Custom authorization page (welcome page) n/a
Custom color schemes and templates (CSS, HTML, PHP, Javascript) n/a
Custom layouts, custom menus n/a
Full source code availability n/a
Full front-end access n/a
Full back-end access n/a
Complete module, structure, and contents management n/a
Advanced set of administrative tools n/a
Localization tools (product can be translated into any language) 
Enterprise Level Integration

CloudSelf-hostedPre-set access rights and permissions
Flexible access rights and permissions for User Groups and individual users n/a
LDAP / Active Directory n/a
NTLM authentication / SSO n/a
MS Exchange (Calendars) n/a
MS SharePoint (Lists) 
Back-Ups

CloudSelf-hosted
Automatic daily back-ups for Cloud accounts 
Manually scheduled backups 
Back-up restore procedure (available only with a commercial subscription) 
Cloud storage option for backups n/a
Built-in back-up / restore tools 
Security & Safety

CloudSelf-hosted
Accessible only through SSL-protocol 
Security measures and access procedures can be adjusted manually 
Proactive filter WAF (Web Application Firewall) 
Proactive filter WAF (Web Application Firewall) 
Several independent data centers providing 24/7 online service availability n/an/a
Built-in security tools with a full access at the back-end of your product copy 
Product Features & Tools

CloudSelf-hosted
Set of features defined by subscription plan 
Set of features defined by product edition n/a
Additional HelpDesk tools n/a
Additional e-Learning tools n/a
Additional CMS tools n/a
Additional security tools n/a
Additional scalability tools 
Mobile & Desktop Apps

CloudSelf-hosted
Free Mobile App 
Free Mobile App (with a partial front-end custom view support) 
Free Desktop App 
Free Desktop App