Compare Slack vs. INinbox

Getting the best Communications Software for your business is difficult with so many functions, options, and terms to consider. But, using our review directory will help you to cut down the necessary steps by reading all key software in a single location. For example, you can compare Slack and INinbox for their functions and overall scores, in this case, 9.3 and 8.0, respectively. Likewise, you can check which one has higher general user satisfaction rating: 96% (Slack) and 100% (INinbox) to find out which software is the better choice for your company. Don’t just buy the solution with the lowest price, but the service that has the best value for your money. Our team put a lot of effort to review all popular Collaboration Software products offered out there, but among them these three deserved our special attention: Wrike, dapulse, Asana.





Slack screenshot INinbox screenshot
Pricing Page

Our Score

Our Score

9.3 ?

Our Score

8.0 ?

Client Experience

Client Experience

Client Experience

96% ?

Client Experience

100% ?





Pricing Type

Pricing Type

Free | Monthly payment | Annual Subscription Monthly payment
Detailed Review

Detailed Review

Product Info

Product Info

Slack is a messaging app that brings all your communication together in one place. It offers real-time messaging, archiving and search for modern teams.
INinbox makes email marketing easy for users with affordable and user-friendly email marketing solutions.
Quick Links
Pricing Page

Pricing Page

Learn more about Slack pricing Learn more about INinbox pricing
Email Address

Email Address


Slack integrates messages from external systems used by teams (including services such as Twitter, Google Docs/Drive, Dropbox, Zendesk, GitHub, MailChimp and dozens more) to create one place where everything comes together with one search box across all these tools. A full list of integrations can be found on Slack’s website.

INinbox supports integrations with the following business systems and applications:

  • Magento
  • WordPress
  • Survey Monkey
  • Ongage
  • SEOShop
  • Opencart
  • Zapier
  • FreshBooks
  • Wufoo
  • Eventbrite
  • Formstack
  • Pipedrive
  • Recurly
  • Nutshell
  • Nimble
  • Insightly
  • Batchbook
  • Chargify
  • Stripe
  • PipelineDeals
  • ZenDesk
  • JotForm
  • Capsule
  • Highrise
  • Jimdo
  • JustUno
  • Padiact
  • Woobox
Available Languages

Available Languages

USA, UK, Canada, International USA, UK, Canada, China, Germany, India, Japan
Available Support

Available Support

OS Supported

OS Supported

Contact Address

Contact Address

680 Folsom St #145
San Francisco, CA 94107
Erasmuslaan 16
9752PG Haren
The Netherlands
Available Plans

Available Plans

Slack offers three SMB and enterprise pricing packages for users to choose from. Give the details a look, and select your plan:

Free – No limits on time or users

  • Searchable message archives, up to 10k of your team’s most recent messages
  • 10 apps or service integrations
  • Native apps for iOS, Android, Mac & Windows Desktop
  • Two-person voice and video calls
  • 5GB total file storage for the team
  • Two-factor authentication

Standard – $6.67 per user/month billed annually ($8 billed monthly)

  • All features from the Free plan
  • Unlimited searchable message archives
  • Unlimited apps and service integrations
  • Custom retention policies for messages and files
  • Guest access
  • Priority support
  • OAuth via Google
  • Mandatory two-factor authentication
  • Custom User Groups to reach a team or department
  • Group voice and video calls
  • 10GB file storage per team member

Plus – $12.50 per user/month billed annually ($15 billed monthly)

  • All features from the Standard plan
  • SAML-based single sign-on (SSO)
  • Compliance Exports of all messages
  • 99.99% Guaranteed Uptime SLA
  • 24/7 Support with 4-hour response time
  • User provisioning and deprovisioning
  • Real-time Active Directory sync with OneLogin, Okta, Centrify, and Ping Identity
  • 20GB file storage per team member

Enterprise – $49-99 per user/month billed annualy

  • Fully searchable archive with unlimited messages
  • Unlimited external integrations
  • Free native apps for iOS, Android & Mac Desktop
  • Detailed usage statistics, reporting & analysis
  • Custom message retention policies
  • Guest access
  • Priority support

INinbox offers two competitively priced packages and a quote-based packaging for businesses with huge email marketing needs. A free edition for users who want to check out the solution first before making an investment.

Free Box

  • 2,000 contacts
  • 20,000 emails

Big Box – from $20/month

  • up t0o 5,000 contacts
  • Unlimited emails

Sky Box – from $39/month

  • Unlimited Contacts
  • Unlimited emails

Unlimited Box – Custom pricing

  • Unlimited contacts
  • Unlimited emails
  • One Fixed price



  • Built-in internal and external sharing option
  • Configurable notifications for desktop, mobile push and email
  • Create open channels
  • Desktop and mobile messaging, file sharing and notifications
  • Flexible file browsing
  • Flexible notifications
  • Integrates with dozens of services
  • Integrations with Google Docs and Dropbox
  • Mobile native
  • Native apps for iOS and Android
  • Powerful search and archiving
  • Read-state synchronization
  • Search conversations and individual messages
  • Search inside Word docs, Google Docs, Photoshop files, PDFs
  • Snippets: for capturing blocks of raw text, log files, code
  • Support for both Google and Apple emoji styles
  • Support for private groups and 1:1 direct messaging
  • Sync with desktop, iPhone/iPad or Android device
  • Two built-in native file types
  • Webhooks and an open API


  • Broadcast Emails
  • One-click duplication
  • Built in Professional HTML templates
  • HTML Editor
  • Track Sent Emails
  • Conversion Tracking
  • Contact Management
  • Subscriber List Management
  • Make Filtered Lists
  • Add Gravatars
  • Message Personalization
  • Lead and Sales Conversation Tracking
Prominent Customers

Prominent Customers

Dow Jones, eBay, NBCUniversal, The Wall Street Journal
Customer Types

Customer Types

Small Business | Large Enterprises | Medium Business | Freelancers Small Business | Large Enterprises | Medium Business | Freelancers
Phone Number

Phone Number

+1-415-805-8989 +1 315 217 4268
Compare Products

Compare Products

Compare with Nozbe
Compare with ChatOnGo
Compare with Wizergos
Compare with Zoho Calendar
Compare with Zoho Notebook
Compare with SkySite
Compare with Meeteor
Compare with GoToMeeting
Compare with CloudApp
Compare with Samepage
Compare with Publicfast
Compare with SocialPilot
Compare with Iterable
Compare with
Compare with HipChat
Compare with Team On The Run
Compare with RedCappi
Compare with OpenMoves
Compare with Gazella Wifi
Compare with TurboMeeting
Popular Alternatives

Popular Alternatives



Page last modified

If you compare different Communications Software products you shouldn’t just look at their list of features and available pricing packages. Consider that the app should be matching your standards and company so the more flexible their offer the better. Check what systems are supported by Slack and INinbox and ensure you will obtain mobile support for whichever devices you use in your company. It may also be a good idea to learn which languages and geographies are supported, as this may be a critical factor for many firms.