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7.7

SpotScore

Additor - Collaboration Software

Top 10 Additor Alternatives 2026

Collaboration made simple.

Try for Free

Trusted by 2M+ software buyers annually.

Main Features

  • Content Management
  • Document Management
  • Project Management
  • Synchronous Editing

Pricing

  • Additor offers custom pricing plan

Try for Free

Additor is a Collaboration Software platform. Teams looking for alternatives typically need better pricing flexibility, easier deployment, or a closer feature fit for their specific use case. Below you'll find 10 vetted Collaboration Software alternatives ranked by user rating, with filters to narrow by pricing, platform, and features — so you can find the right fit for 2026.

Additor vs Top Alternatives at a Glance

Side-by-side comparison of pricing, user rating, and free trial availability to help you decide faster.

ToolBest ForPricingRatingFree Option
Additor CurrentCollaboration SoftwareFree plan availableNo reviews✓ Yes
PicterCollaboration SoftwareFree trial5.0 ★✓ Yes
Reactiv SuiteCollaboration SoftwareCustom pricing4.6 ★✗ No
StackbyCollaboration SoftwareFree plan available4.9 ★✓ Yes
HowspaceCollaboration SoftwareFree trial5.0 ★✓ Yes
NextcloudCollaboration SoftwareFree trial4.5 ★✓ Yes

Alternatives of Additor with

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List of the Top Additor alternatives as of September 2026

Compare business software, products, and services to find the best solution for your business or organization. Use the filters on the left to drill down by category, pricing, features, market segment, user ratings, and more.

8.4

SpotScore

Picter - Collaboration Software

Picter

Collaboration made easy.

Start Free Trial

5.0

(2)

Add to compare

✦ Editor’s Pick

What is Picter?

Picter is a software tool that will help team members keep a central point of reference for their projects and communicate the progress of those projects. With Picter team members can add files, edit them in real time, forms, share comments and more. It is designed to reduce emailing, enable ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Project Management

+ 1 more

Unique Features

  • Discussion Boards

  • Cooperative Writing

  • Chat (Messaging)

+ 2 more

Pricing

Free Trial available

7.6

SpotScore

Reactiv Suite - Collaboration Software

Reactiv Suite

Upgrade your virtual meetings with Reactiv Suite.

Get Pricing Details

4.6

(5)

Add to compare

What is Reactiv Suite?

Introducing Reactiv Suite – the ultimate solution for enhancing your virtual meetings. With our innovative software, you can effortlessly elevate audience participation in any hybrid meeting. Organize, manipulate, and annotate content seamlessly, just like you would on paper. Experience the ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Document Management

Unique Features

  • Chat (Messaging)

  • Brainstorming

  • Version Control

Pricing

Reactiv Suite offers custom pricing plan

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8.9

SpotScore

Stackby - Collaboration Software

Stackby

Grow your stack with Stackby's powerful collaboration tools.

Try for Free

4.9

(40)

Add to compare

Free plan available

What is Stackby?

Stackby is collaboration software for businesses who want to create and grow using their own stack. By 'stack,' we mean a stack of tools used to build all kinds of applications. The Stackby API allows developers to build new features easily into Stackby, and helps them learn new skills too. We ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Project Management

+ 1 more

Unique Features

  • Group Calendars

  • Discussion Boards

  • Cooperative Writing

+ 3 more

Pricing

Stackby offers custom pricing plan

8.5

SpotScore

Howspace - Collaboration Software

Howspace

Effortless collaboration for seamless teamwork.

Start Free Trial

5.0

(20)

Add to compare

What is Howspace?

Howspace is a digital collaboration platform used by facilitators, HR teams, and organizational development consultants to run workshops, co-creation sessions, and participatory planning processes with distributed participants. It centralizes agenda building, document sharing, and structured ...

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Common Features

  • Content Management

  • Project Management

  • Document Management

Unique Features

  • Group Calendars

  • Discussion Boards

  • Cooperative Writing

+ 3 more

Pricing

Free Trial available

Howspace offers custom pricing plan

Nextcloud - Collaboration Software

Nextcloud

Streamline your communication, securely and from anywhere.

Start Free Trial

4.5

(65)

Add to compare

What is Nextcloud?

Nextcloud is a project management and collaboration tool that brings together universal access to files, apps, contacts, and calendars from virtually any device and store them in one central place. Nextcloud provides a platform you can use to communicate with your team, clients, or family. Keep ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Project Management

+ 1 more

Unique Features

  • Group Calendars

  • Discussion Boards

  • Cooperative Writing

+ 6 more

Pricing

Free Trial available

9.6

SpotScore

Google Workspace - Collaboration Software

Google Workspace

Collaborate seamlessly with Google Workspace.

Start Free Trial

Add to compare

What is Google Workspace?

The Google Workspace is a set of cloud-based applications designed to help you work better, together. Workspace gives you tools to work confidently in the cloud, like SharePoint Online, Google Docs, and Slides. And it makes your team's content available on any device - computer, smartphone or ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Project Management

+ 1 more

Unique Features

  • Group Calendars

  • Discussion Boards

  • Cooperative Writing

+ 6 more

Pricing

Free Trial available

Starts from $6/User/Month

8.4

SpotScore

DEON - Collaboration Software

DEON

Streamline collaboration and accelerate success.

Try for Free

4.7

(20)

Add to compare

Free plan available

What is DEON?

DEON is a workflow visibility and collaboration platform aimed at product and operations teams that need to map how work actually moves from idea to launch across people and functions. It captures real workflow patterns and surfaces where handoffs stall, replacing manual status check-ins and ...

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Common Features

  • Content Management

  • Project Management

  • Document Management

Unique Features

  • Discussion Boards

  • Cooperative Writing

  • Chat (Messaging)

+ 3 more

Pricing

DEON offers custom pricing plan

8.7

SpotScore

Kahootz - Collaboration Software

Kahootz

Collaborate, create, and track with ease.

Start Free Trial

4.3

(29)

Add to compare

What is Kahootz?

Kahootz makes it easy to create quick quizzes, surveys, and polls as a team without needing to sign up for anything or set up accounts. With built-in metrics on key insights like the number of team members responding, responses per question, response speed, average time it takes to answer ...

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Common Features

  • Content Management

  • Project Management

  • Document Management

Unique Features

  • Group Calendars

  • Discussion Boards

  • Cooperative Writing

+ 5 more

Pricing

Free Trial available

Kahootz offers custom pricing plan

9.2

SpotScore

Workplace - Collaboration Software

Workplace

Unifying teams for greater success.

Start Free Trial

Add to compare

What is Workplace?

Workplace from Meta is an enterprise social networking platform for large organizations and distributed workforces — including frontline and non-desk workers — who need internal communication tools that feel familiar from everyday social media use. It centralizes company-wide news feeds, group ...

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Common Features

  • Content Management

  • Project Management

  • Document Management

Unique Features

  • Group Calendars

  • Discussion Boards

  • Chat (Messaging)

+ 4 more

Pricing

Free Trial available

Starts from $4/User/Month

8.6

SpotScore

Huddle - Collaboration Software

Huddle

Unite. Collaborate. Innovate.

Get Pricing Details

4.1

(81)

Add to compare

What is Huddle?

Huddle is the collaboration software that helps teams work smarter together and better understand feedback. Huddle reduces email overload and creates shared awareness, enabling teams to make faster and better decisions. A powerful team collaboration platform, Huddle includes a cross-platform ...

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Common Features

  • Synchronous Editing

  • Content Management

  • Project Management

+ 1 more

Unique Features

  • Group Calendars

  • Cooperative Writing

  • Task Management

+ 10 more

Pricing

Huddle offers custom pricing plan

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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].