Top 11 customer service · sms that work with Slack

OpenPhone is the highest-ranked provider in the Top 11 SimpleTexting vs Attentive vs TextMagic: 11 Best Business Texting Software Platforms 2026 that integrates with Slack.

Why this answer

Filtered to entries that publicly document a Slack integration. We do not include "API available" as proof of integration — there has to be a named connector or first-class workflow.

Showing all 3 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked SimpleTexting vs Attentive vs TextMagic: 11 Best Business Texting Software Platforms 2026.

  1. #1OpenPhone(rank #4 in SimpleTexting vs Attentive vs TextMagic: 11 Best Business Texting Software Platforms 2026)

    8.5/9.4

    The best unified VoIP phone and team texting solution.

    Full OpenPhone review · Compare: OpenPhone vs Heymarket · Alternatives

  2. #2Heymarket(rank #9 in SimpleTexting vs Attentive vs TextMagic: 11 Best Business Texting Software Platforms 2026)

    7.6/9.4

    A powerful shared inbox designed for customer service.

    Full Heymarket review · Alternatives

  3. #3Intercom(rank #11 in SimpleTexting vs Attentive vs TextMagic: 11 Best Business Texting Software Platforms 2026)

    —

    A full customer service platform where SMS is one channel.

    Full Intercom review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .