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7.7

SpotScore

Additor - Collaboration Software

Top 10 Additor Alternatives 2026

Collaboration made simple.

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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 November 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 — 5★

Collaboration made easy.

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5.0

(2)

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✦ 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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What reviewers like about Picter

  • Real-time file editing
  • Centralized project reference
  • Comment sharing

Where Picter falls short

  • Limited integrations
  • May require training
  • Not suitable for large teams

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 — 4.6★

Upgrade your virtual meetings with Reactiv Suite.

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4.6

(5)

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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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What reviewers like about Reactiv Suite

  • Enhances audience participation
  • Seamless content manipulation
  • Real-time feedback

Where Reactiv Suite falls short

  • Limited to virtual meetings
  • Complex setup for new users
  • Requires stable internet connection

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 — 4.94★

Grow your stack with Stackby's powerful collaboration tools.

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4.9

(40)

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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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What reviewers like about Stackby

  • API links for real-time data updates and automation, saving time and reducing manual work.
  • Diverse range of features combining databases, spreadsheets, task management, and forms for comprehensive business solutions.
  • Excellent customer service with personalized assistance, including setup meetings and responsive support.

Where Stackby falls short

  • Steep learning curve for beginners, especially those unfamiliar with spreadsheet applications like Airtable or Google Sheets.
  • Limited availability of integrations, although more are anticipated in future updates.
  • Occasional bugs and functional issues requiring timely support intervention.

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 — 5★

Effortless collaboration for seamless teamwork.

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5.0

(20)

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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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What reviewers like about Howspace

  • Centralized project management
  • Easy file sharing
  • Real-time updates

Where Howspace falls short

  • Limited offline capabilities
  • Can be overwhelming for new users
  • Pricing may be high for small teams

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 — 4.53★

Streamline your communication, securely and from anywhere.

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4.5

(65)

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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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What reviewers like about Nextcloud

  • Universal file access
  • Strong security features
  • Centralized storage

Where Nextcloud falls short

  • Setup can be complex
  • Requires technical knowledge
  • Limited third-party integrations

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 — from $6 · 4.49★

Collaborate seamlessly with Google Workspace.

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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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What reviewers like about Google Workspace

  • G Suite offers good value for money and has been reliable for long-time users.
  • The product is considered good overall and valuable for productivity.

Where Google Workspace falls short

  • Customer support is extremely poor, with non-existent human assistance and incompetent chatbot interactions.
  • Issues with billing and unauthorized charges, difficulties in cancellation process, and lack of proper communication channels for problem resolution.

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 — 4.7★

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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What reviewers like about DEON

  • Accelerates idea-to-launch
  • Captures true workflow
  • Insightful progress tracking

Where DEON falls short

  • May require setup time
  • Limited integrations
  • Not suitable for small teams

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 — 4.29★

Collaborate, create, and track with ease.

Start Free Trial

4.3

(29)

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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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What reviewers like about Kahootz

  • Interactive and engaging platform for team building activities, icebreakers, and increasing collaboration among team members.
  • Offers a variety of features like live gaming options, customization of questions and points, and easy content creation.
  • Secure cloud service with strong data protection measures, appealing to users concerned about cybersecurity.

Where Kahootz falls short

  • Occasional technical issues like lags and difficulties in launching live games, which can disrupt the user experience.
  • Limited ability to customize backgrounds, access to company images, and basic color scheme options, hindering personalization features.
  • Learning curve for beginners, lack of online tutorials for setup, and occasional complexity in certain functionalities without proper guidance.

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 — from $4 · 4.05★

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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What reviewers like about Workplace

  • Easy to use, similar to other social media platforms, facilitating clear communication and updates.
  • Enables real-time collaboration, group conversations, and document sharing, improving teamwork efficiency.
  • Integration with various business tools for enhanced workflow and productivity.

Where Workplace falls short

  • Potential for distraction with excessive interactions like likes and comments affecting productivity.
  • Complexity in managing notifications and customizing settings for individual groups.
  • Lack of certain features like immediate feedback visibility during live streams, leading to communication challenges.

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 — 4.13★

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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What reviewers like about Huddle

  • Reduces email overload
  • Cross-platform accessibility
  • Enhances team decision-making

Where Huddle falls short

  • Limited integrations
  • Can be complex for new users
  • Requires internet connection

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

How Additor competitors stack up

Across Collaboration Software, 10 products compete directly with Additor. The strongest overlap is with Picter, Reactiv Suite and Stackby. Each is compared against Additor on rating, pricing and feature coverage below.

What else works like Additor?

Searches for "sites like Additor" and "apps like Additor" land on the same set of options as "Additor alternatives" — the 10 options below cover both, whether you want a like-for-like replacement or something lighter.

What each one offers

Picter8.4Best for teams of all sizes

Real-time file editing

Watch for: Limited integrations

Reactiv Suite7.6Best for teams of all sizes

Enhances audience participation

Watch for: Limited to virtual meetings

Stackby8.9Best for teams of all sizes

API links for real-time data updates and automation, saving time and reducing manual work.

Watch for: Steep learning curve for beginners, especially those unfamiliar with spreadsheet applications like Airtable or Google Sheets.

Howspace8.5Best for teams of all sizes

Centralized project management

Watch for: Limited offline capabilities

NextcloudBest for teams of all sizes

Universal file access

Watch for: Setup can be complex

Google Workspace9.6Best for teams of all sizes

G Suite offers good value for money and has been reliable for long-time users.

Watch for: Customer support is extremely poor, with non-existent human assistance and incompetent chatbot interactions.

DEON8.4Best for teams of all sizes

Accelerates idea-to-launch

Watch for: May require setup time

Kahootz8.7Best for teams of all sizes

Interactive and engaging platform for team building activities, icebreakers, and increasing collaboration among team members.

Watch for: Occasional technical issues like lags and difficulties in launching live games, which can disrupt the user experience.

Workplace9.2Best for teams of all sizes

Easy to use, similar to other social media platforms, facilitating clear communication and updates.

Watch for: Potential for distraction with excessive interactions like likes and comments affecting productivity.

Huddle8.6Best for teams of all sizes

Reduces email overload

Watch for: Limited integrations

Why teams look for an Additor alternative

What sends teams searching for an Additor alternative usually boils down to these:

  • Limited offline functionality
  • Can be slow with large files
  • Basic formatting options
  • No built-in video conferencing

Picking the right Additor alternative: what to weigh

A look at the 10 collaboration software alternatives by the figures: 8 offer a free tier; and Picter is the highest rated at 5★ across 2 reviews.

How we determine rank.

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