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ALTERNATIVE APPLICATIONS

Slack Alternatives

Should you replace Slack?

Mattermost is the strongest catalog alternative to evaluate for Slack.

Slack

Current
Hybrid Payg
4.5/5
Annual cost
--
Seats assigned
--

This catalog view compares public market data and does not include organization spend or usage.

Slack alternatives

See how Slack compares to 26 alternative apps you can switch to.

MattermostBest FitPublic pricingAvg. switch cost--You get more security and control, but lose ease of use, AI features, and fun tools like Clips and Huddles.
SmartsheetWorth ConsideringSeat-basedAvg. switch cost--You gain powerful project tracking and automation, but you will lose real-time chat and instant messaging.
WrikeWorth ConsideringPublic pricingAvg. switch cost--You get better project tracking and timelines, but you lose fast chat and voice calls.
Process S...Worth ConsideringSeat-basedAvg. switch cost--You get structured checklists and audit trails, but lose instant chat and video calls.
StreamlineWorth ConsideringPublic pricingAvg. switch cost--You get structured approvals and process tracking, but you lose real-time chat, voice calls, and the broad app ecosystem that keeps Slack teams connected.
N8nWorth ConsideringPublic pricingAvg. switch cost--You get powerful app automation and self-hosting, but you lose team chat and file sharing completely.
WireWorth ConsideringPublic pricingAvg. switch cost--You get ironclad privacy and open standards, but you lose Slack’s massive app store and built-in workflow tools.
Cleo Inte...Worth ConsideringPublic pricingAvg. switch cost--You get powerful B2B data automation but lose all team chat and quick messaging features.
ClickupNot RecommendedPublic pricingAvg. switch cost--Clickup is not a strong catalog fit based on public pricing, migration, or product-fit signals.
Monday Wo...Not RecommendedSeat-basedAvg. switch cost$8/yr$9/monthMonday Work Management is not a strong catalog fit based on public pricing, migration, or product-fit signals.
FiberyNot RecommendedSeat-basedAvg. switch cost--Fibery is not a strong catalog fit based on public pricing, migration, or product-fit signals.
HiveNot RecommendedSeat-basedAvg. switch cost$120/yr$12/monthHive is not a strong catalog fit based on public pricing, migration, or product-fit signals.
AsanaNot RecommendedSeat-basedAvg. switch cost--Asana is not a strong catalog fit based on public pricing, migration, or product-fit signals.
Microsoft...Not RecommendedSeat-basedAvg. switch cost$240/yr$20/monthMicrosoft Copilot is not a strong catalog fit based on public pricing, migration, or product-fit signals.
M-FilesNot RecommendedPublic pricingAvg. switch cost--M-Files is not a strong catalog fit based on public pricing, migration, or product-fit signals.
Microsoft...Not RecommendedSeat-basedAvg. switch cost--Microsoft Power Automate is not a strong catalog fit based on public pricing, migration, or product-fit signals.
KarbonNot RecommendedSeat-basedAvg. switch cost$79/yr$95/monthKarbon is not a strong catalog fit based on public pricing, migration, or product-fit signals.
CreatioNot RecommendedPublic pricingAvg. switch cost--Creatio is not a strong catalog fit based on public pricing, migration, or product-fit signals.
BizagiNot RecommendedPublic pricingAvg. switch cost--Bizagi is not a strong catalog fit based on public pricing, migration, or product-fit signals.
Newgenone...Not RecommendedPublic pricingAvg. switch cost--Newgenone Digital Transformation Platform is not a strong catalog fit based on public pricing, migration, or product-fit signals.
ZapierNot RecommendedSeat-basedAvg. switch cost--Zapier is not a strong catalog fit based on public pricing, migration, or product-fit signals.
LythoNot RecommendedPublic pricingAvg. switch cost--Lytho is not a strong catalog fit based on public pricing, migration, or product-fit signals.
NintexNot RecommendedPublic pricingAvg. switch cost--Nintex is not a strong catalog fit based on public pricing, migration, or product-fit signals.
BonsaiNot RecommendedPublic pricingAvg. switch cost--Bonsai is not a strong catalog fit based on public pricing, migration, or product-fit signals.
Intellige...Not RecommendedPublic pricingAvg. switch cost--Intelligencebank is not a strong catalog fit based on public pricing, migration, or product-fit signals.
RamboxNot RecommendedPublic pricingAvg. switch cost--Rambox is not a strong catalog fit based on public pricing, migration, or product-fit signals.

Mattermost and Smartsheet selected for comparison.

Annual costTotal subscription cost for each app, shown for the selected billing period.
Slack

--

Free

Public catalog pricing. Organization spend is not included.

Mattermost

--

Public pricing

Public catalog pricing estimate.

Smartsheet

$108

Free

Public catalog pricing estimate.

3-Year Net SavingEstimated savings over three years after migration and setup costs.
Slack

$0

No migration in the current app baseline.

Mattermost

--

After $2,500 estimated migration cost.

Smartsheet

--

After $2,500 estimated migration cost.

Team Fit ScoreHow closely the app matches the teams, workflows, and usage patterns currently in place.
Slack

--

Mattermost

55/100

Mattermost works best for technical teams that need self-hosted control and strong security. It's less ideal for marketing or support teams who want quick setup and casual chat features like Slack's Huddles or Clips.

Smartsheet

45/100

Slack keeps conversations flowing in real time, while Smartsheet focuses on organizing tasks and projects. If your main goal is to track deadlines and share files, Smartsheet works well. But you will miss the instant messaging and channel-based chat that Slack provides.

Adoption RiskExpected friction, training effort, and behavior change needed to move teams onto the alternative.
Slack

--

Public adoption signal for the current app.

Mattermost

low

Mattermost is a low-complexity migration. Estimated 4 weeks and $2,500 one-time cost.

Smartsheet

low

Smartsheet is a medium-complexity migration. Estimated 4 weeks and $2,500 one-time cost.

User satisfactionAvailable rating and review signal for team sentiment around the app.
Slack

4.5/5.0

37712 reviews

Mattermost

--

1200 reviews

Smartsheet

4.4/5.0

18500 reviews

Timeline & DisruptionExpected migration duration and disruption to normal workflows.
Slack

No migration needed

Mattermost

4 weeks

Low

Mattermost is a low-complexity migration. Estimated 4 weeks and $2,500 one-time cost.

Smartsheet

4 weeks

Medium

Smartsheet is a medium-complexity migration. Estimated 4 weeks and $2,500 one-time cost.

Setup & trainingOne-time implementation, enablement, and training investment required.
Slack

--

Mattermost

$2,500

Estimated one-time migration and setup effort.

Smartsheet

$2,500

Estimated one-time migration and setup effort.

Integration CoverageHow much of the current integration and workflow surface is covered by the app.
Slack

--

Mattermost

--

Supports 200 native integrations.

Smartsheet

--

Supports 210 native integrations.

Feature Match (%)How closely the app matches current feature needs, including notable gaps or risks.
Slack

100%

Mattermost

50%

  • No built-in AI features like Slack AI
  • Fewer pre-built integrations than Slack
  • UI feels less polished for non-technical users
Smartsheet

28%

  • No real-time chat or direct messaging
  • Missing voice and video call features
  • Lacks threaded conversations and channel organization
  • No external guest collaboration links
CertificationsSecurity, privacy, and compliance certifications available for each app.
Slack
SOC 2 Type IIISO 27001ISO 27017ISO 27018GDPRHIPAAFedRAMP ModerateCCPA
Mattermost
SOC 2 Type IIISO 27001GDPRHIPAA
Smartsheet
SOC 2 Type IIISO 27001GDPR
Choose This IfThe conditions where keeping or switching to this app is likely to make sense.
Slack

You already standardize on this app.

Mattermost

Your team needs full control over data, wants to self-host, or works in a high-security environment like government or finance

Smartsheet

Your team needs to track projects, manage resources, and automate tasks instead of just chatting.

Avoid This IfThe conditions where this app is likely to create cost, workflow, or adoption risk.
Slack

Public pricing or fit signals no longer match your needs.

Mattermost

Your team wants quick setup, enjoys casual features like video huddles or AI-powered search, or relies heavily on Slack's app ecosystem

Smartsheet

You rely on instant messaging, voice calls, and channel-based conversations for daily work.