Is 15Five or Slack for Gmail™ cheaper?

Both 15Five and Slack for Gmail™ offer paid plans only. 15Five starts at Paid with free trial; Slack for Gmail™ starts at Free. Compare the per-tier features in the Pricing section above before committing.

Should I choose 15Five or Slack for Gmail™?

AppRanks cannot recommend one over the other from published marketplace data: the Slack Marketplace does not expose a rating or review base that separates them. Read both apps' detail pages for the feature breakdown, and compare against your own requirements rather than a headline number.

Which is faster to set up, 15Five or Slack for Gmail™?

Both apps are one-click installs from the Slack Marketplace. AppRanks doesn't measure setup time directly, and the Slack Marketplace publishes no review base that would let us infer it for these two — read the recent reviews on each app's detail page for user-reported install experience.

Which works better for small vs large Slack Marketplace teams?

15Five typically suits early-stage and growth-mode teams based on its published review base (0 reviews). Slack for Gmail™ typically suits early-stage and growth-mode teams based on its published review base (0 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.

Can I migrate data between 15Five and Slack for Gmail™?

Migration support varies by app and category. 15Five and Slack for Gmail™ both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Slack for Gmail™" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.

AppRanks

15Five vs Slack for Gmail™ — Slack

Slack for Gmail™ vs 15Five

Side-by-side comparison · 24 data points

Slack for Gmail™

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1. Listing metadata

Field-level data

	15Five	Slack for Gmail™
Tagline	“15Five for Slack brings performance conversations, recognition, and manager support directly into the flow of work. At the center of the experience is Kona by 15Five, an AI-powered coaching assistant that helps managers lead more effectively without adding more to their plate. Integrated across meet”300 chars	“Keep conversations moving forward by bringing context from an email into a Slack channel or direct message with the Slack for Gmail™ Add-On available in the G Suite Marketplace. You can choose to add a message and include attachments along with the email as well.”263 chars
Description	2048 / 10000 chars20% used	1883 / 10000 chars19% used
Screenshots	6 images	3 images
Languages
Platforms	Slack	Slack
Developer
Listed	—	—
Last updated

Feature comparison between 15Five and Slack for Gmail™
Metric	15Five	Slack for Gmail™
Free plan	Yes	Yes
Pricing	Paid with free trial	Free

4. App details

Long-form description · keyword frequency

15Five

15Five for Slack brings performance conversations, recognition, and manager support directly into the flow of work. At the center of the experience is Kona by 15Five, an AI-powered coaching assistant that helps managers lead more effectively without adding more to their plate. Integrated across meetings, Slack, and the 15Five platform, Kona helps managers stay prepared, follow through on action items, and improve how they support their teams with timely, personalized coaching. With Kona for Slack, managers receive coaching nudges, meeting insights, and follow-up support where they already work. Kona listens to recurring 1-on-1 meetings, captures notes and action items, and delivers personalized guidance based on manager behaviors and 15Five data. Kona also helps managers prepare for what comes next. Pre-meeting guidance can surface in Slack to recap prior conversations, highlight open action items, and suggest coaching topics or discussion points for upcoming 1-on-1s. That means less guesswork, more intentional conversations, and better follow-through. The 15Five app for Slack makes it easy for employees and managers to take meaningful action without leaving their workflow. Teams can request or provide feedback directly in Slack, making it easier to ask for input while projects and conversations are still fresh. Employees can also send High Fives from Slack to celebrate wins and recognize teammates in real time. The 15Five Slack experience also supports day-to-day accountability and visibility. Employees can fill out Check-ins in Slack and receive reminders about priorities and due dates. Organizations can configure Slack to share submitted Check-ins, priorities, answers to selected Check-in questions, and public High Fives into designated channels. Together, Kona and 15Five for Slack help organizations bring manager effectiveness and employee experience into the tools people already use every day. 15Five for Slack helps turn everyday moments into better conversations, stronger leadership, and measurable impact.

Top keywords

slack12×4.05%
15five8×2.70%
kona6×2.03%
conversations5×1.69%
managers5×1.69%
action4×1.35%
coaching4×1.35%
15five for slack3×1.01%
action items3×1.01%
employees3×1.01%
experience3×1.01%
items3×1.01%

Slack for Gmail™

Keep conversations moving forward by bringing context from an email into a Slack channel or direct message with the Slack for Gmail™ Add-On available in the G Suite Marketplace. You can choose to add a message and include attachments along with the email as well. When to send email into Slack: • Email chain getting too noisy? Send it into Slack where you can discuss quickly and move forward. • Have an idea you want to share with your team? Send it along to a relevant channel with a note about your insights. • Need to coordinate a response to a customer question? Flag your teammates in Slack and use the email content to set context. How the Add-On works: • Start by installing the Slack for Gmail™ Add-On from the G Suite Marketplace • Open any email and click on the Slack icon in the right-hand side of your inbox • Choose the channel or person you’d like to forward the email to inside of Slack • Add a message and include attachments if you’d like • Voilà! The email is forwarded into Slack where anyone in the channel or direct message you shared it to can see the email content and open attachments. Please note that the following limits apply to emails shared via this app: • The combined headers and body of an email cannot be larger than 1MB. • When combined with attachments, an email cannot be larger than 30 MB. • There is a maximum of 20 attachments per email.More ways to use Gmail in SlackAutomate with Workflow BuilderWorkflow Builder&ast; lets you transform everyday processes into automations, without writing a single line of code. Add third-party tools like Gmail to workflows to manage work and processes from Slack, and use templates to get started quickly.&emsp13;Learn more about automations Templates available for Gmail: New Gmail messageFill out a form in Slack to send a Gmail message &ast;Workflow Builder is only available on paid subscriptions

Top keywords

email12×3.70%
slack11×3.40%
gmail7×2.16%
attachments5×1.54%
message5×1.54%

Slack for Gmail™ vs 15Five

Slack for Gmail™

1. Listing metadata

15Five

At a glance

AppRanks verdict

2. Categories & rankings

3. Activity in the last 90 days

15Five · 1 changes

Slack for Gmail™ · 2 changes

4. App details

Frequently asked

Is 15Five or Slack for Gmail™ cheaper?

Should I choose 15Five or Slack for Gmail™?

Which is faster to set up, 15Five or Slack for Gmail™?

Which works better for small vs large Slack Marketplace teams?

Can I migrate data between 15Five and Slack for Gmail™?

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