Software Alternatives, Accelerators & Startups

AddEvent VS OnePatch

Compare AddEvent VS OnePatch and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

AddEvent logo AddEvent

Add to Calendar tools and calendar marketing software that help businesses increase event attendance and audience engagement.

OnePatch logo OnePatch

Make Selling Online Easy
  • AddEvent AddEvent homepage
    AddEvent homepage //
    2026-05-18
  • AddEvent AddEvent Dashboard
    AddEvent Dashboard //
    2026-05-18
  • AddEvent AddEvent Templates
    AddEvent Templates //
    2026-05-18
  • AddEvent AddEvent Dynamic Add to Calendar
    AddEvent Dynamic Add to Calendar //
    2026-05-18
  • AddEvent AddEvent RSVP
    AddEvent RSVP //
    2026-05-18
  • AddEvent AddEvent Create Event
    AddEvent Create Event //
    2026-05-18
  • AddEvent Add to Calendar sharing options
    Add to Calendar sharing options //
    2026-05-18

AddEvent is a calendar marketing platform that helps businesses increase engagement, attendance, and retention through calendar-based experiences across Google Calendar, Outlook, Apple Calendar, Microsoft 365, and other major calendar platforms.

The platform provides powerful Add to Calendar technology, embeddable calendars, subscription calendars, RSVP tools, automated reminders, and calendar APIs that enable companies to turn events, webinars, product launches, campaigns, and announcements into lasting calendar engagement.

With AddEvent, businesses can create customizable Add to Calendar buttons and links, publish branded event calendars, manage RSVPs, automate event communications, and distribute events across websites, landing pages, emails, newsletters, and SaaS applications. Developers can integrate calendar functionality using flexible APIs and webhooks, while marketing and operations teams can launch calendar campaigns without extensive technical resources.

AddEvent supports a broad range of use cases including webinar promotion, virtual and in-person events, product announcements, recurring content calendars, training programs, customer onboarding, internal communications, community engagement, and event marketing automation. Organizations use AddEvent to improve attendance rates, increase campaign visibility, drive repeat engagement, and make calendars a central channel in their marketing strategy.

Trusted by marketers, publishers, SaaS companies, agencies, enterprises, and event-driven organizations worldwide, AddEvent helps brands connect with audiences so no important moment is missed.

  • OnePatch Landing page
    Landing page //
    2023-09-29

OnePatch is multi-purpose software solution for e-commerce retailers who sell on multiple online selling platforms. With OnePatch, sellers have the solution to organise their product stock, manage their online orders, shipping and accounts all from one simple and effective system, saving valuable time and expanding business growth.

AddEvent

$ Details
freemium $29 / Monthly ("Unlimited Events", "2,500 Add to Calendar clicks")
Release Date
2015 September

OnePatch

$ Details
free ยฃ100 / Usage
Release Date
2022 March

AddEvent features and specs

  • Ease of Use
    AddEvent provides a user-friendly interface that simplifies the process of adding events to calendars across multiple platforms such as Google Calendar, Apple Calendar, and Outlook.
  • Cross-Platform Compatibility
    The tool is compatible with a wide range of calendar applications, ensuring that users can add events regardless of their preferred platform.
  • Customization Options
    Offers extensive customization options for event notifications, links, and reminders, allowing users to tailor event details to suit their needs.
  • API Access
    Provides powerful API access for developers, facilitating integration with various applications and websites for seamless event management.
  • Analytics
    Offers analytics features that help users track event engagement and understand participant behavior effectively.
  • Add to Calendar Buttons & Links
    Let users instantly save events to Google, Outlook, Apple, and Microsoft calendars to increase attendance and engagement.
  • Subscription Calendars
    Keep audiences continuously updated with dynamic calendars that sync events automatically.
  • RSVP Tools
    Collect attendee responses and manage event participation through customizable RSVP pages.
  • Embeddable Event Calendars
    Publish branded event calendars on websites and landing pages without complex development work.
  • Recurring Events
    Easily manage repeating events, webinars, classes, and ongoing campaigns.
  • Timezone Localization
    Automatically display event times in each userโ€™s local timezone for a better global experience.
  • Marketing Integrations
    Connect with email marketing, CRM, and automation platforms to streamline event promotion.
  • White-Label & Branding
    Customize calendars, buttons, and RSVP experiences to match your brand identity.

Possible disadvantages of AddEvent

  • Pricing
    The cost can be significant for small businesses or individuals as it charges based on the number of events and subscribers.
  • Learning Curve
    While the interface is generally user-friendly, some users may experience a learning curve, especially with the more advanced features and customization options.
  • Limited Free Plan
    The free plan offers limited features, which might not be sufficient for users seeking to leverage all functionalities of AddEvent.
  • Feature Set for Basic Users
    Some users might find the feature set overwhelming if they only require basic event scheduling functionalities.
  • Dependency on Internet
    Requires a stable internet connection for optimal performance, which might be a disadvantage in areas with connectivity issues.

OnePatch features and specs

  • Centralized Platform
    OnePatch offers a centralized platform to manage multiple e-commerce stores, which can save time and reduce the complexity of handling different accounts separately.
  • Inventory Management
    It provides efficient inventory management tools that help businesses track stock levels across all connected platforms in real-time, reducing the risk of overselling.
  • Order Processing
    The system streamlines order processing by synchronizing orders from various channels, which can enhance fulfillment efficiency and customer satisfaction.
  • Multichannel Support
    OnePatch supports integration with multiple e-commerce platforms and marketplaces, allowing businesses to expand their reach effectively.
  • User-Friendly Interface
    The software is designed with an intuitive user interface, making it easier for users to navigate and manage their e-commerce operations.
  • Automation Features
    It includes automation features that reduce manual work, such as automated order updates and inventory syncing, freeing up more time for strategic tasks.

Possible disadvantages of OnePatch

  • Pricing Structure
    Depending on the size of the business and the number of integrations required, the cost can be relatively high for small businesses compared to similar tools.
  • Learning Curve
    Despite its user-friendly design, new users may still face a learning curve, especially when integrating multiple channels and configuring custom settings.
  • Limited Advanced Features
    Some businesses may find that OnePatch lacks certain advanced features needed for more complex operations, requiring additional tools or software.
  • Customer Support
    While support is available, there may be limitations in response time or availability, which can be challenging for businesses in urgent need of assistance.
  • Dependency on Internet Connection
    As a cloud-based solution, OnePatch requires a stable internet connection to function effectively, which could be a drawback in areas with unreliable connectivity.

AddEvent videos

How to Customize Event Landing Pages with Design Templates

More videos:

  • Tutorial - How to Create and Share Events with AddEvent
  • Demo - What is AddEvent? Our Event and Calendar Marketing Tools Explained

OnePatch videos

Multi Channel Ecommerce Invoicing

More videos:

  • Review - Multi-channel E-commerce Integration
  • Review - Multi Channel Ecommerce Inventory Management | Best Inventory Management Software | OnePatch
  • Review - How Does OnePatch Manage OnBuy Integration | Multi-Channel Ecommerce Software | OnePatch
  • Review - Best Multichannel Listing Software | Multi Channel Ecommerce Product Listing Tool | OnePatch

Category Popularity

0-100% (relative to AddEvent and OnePatch)
Event Management
100 100%
0% 0
eCommerce Software
0 0%
100% 100
Event Registration
100 100%
0% 0
eCommerce
0 0%
100% 100

User comments

Share your experience with using AddEvent and OnePatch. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, AddEvent seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

AddEvent mentions (1)

  • Help with Google Cal Zap (email users with specific ResponseStatus)
    For funsies, here's some absurdity we had to build to work around its shittiness. We've since abandoned all use of Google Calendar and fallen in love with AddEvent. Source: almost 4 years ago

OnePatch mentions (0)

We have not tracked any mentions of OnePatch yet. Tracking of OnePatch recommendations started around Mar 2021.

What are some alternatives?

When comparing AddEvent and OnePatch, you can also consider the following products

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Splash - Anyone can create a Splash event, whether you're a company hosting a single event or an individual hosting a personal event like a birthday or wedding. Get Started for Free. Text goes here. X. Full Event Program.

DoubleDutch - DoubleDutch creates mobile applications designed to capture and surface data from live events and conferences.

Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

Picatic - Picatic encourages event organizers to create a custom website, sell tickets and then determined their cost of use. Selling out events is easy with Picatic.

Eventdex - One platform to run all your Virtual, Hybrid & In-person events.