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Sales Use Case

WhosOn Alternatives

MarketSizer helps GTM teams identify winnable opportunities based on ICP match, active purchase intent, and historical win probability. Instead of guessing who to target in February 2026, see where WhosOn consistently wins, where buyers are actively evaluating alternatives, and where new opportunities exist right now.

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8 out of 10 MarketSizer opportunities are ICP-aligned and in-market when contacted

MarketSizer account management dashboard showing renewal dates, active trials, and purchase intent levels for key SaaS accounts including Growoyum, Comma, and PrognoCIS. Highlights high-, medium-, and low-intent opportunities with competitor trial timelines. Supports B2B SaaS revenue teams in targeting renewals and competitive conversions across global markets.

Find in-market opportunities you can actually win.

MarketSizer leverages real-time subscription insights to provide your revenue teams with highly qualified  opportunities that are a strong fit, actively buying and  historically winnable.

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8 out of 10 MarketSizer opportunities are ICP-aligned and in-market when contacted

Dashboard interface showing sales data with deals won, companies tracked, active streak, top categories, and countries; sidebar with navigation icons and a detailed panel for Philips company including user seats, service highlights, and live chat summaries with customer service platforms and their subscription statuses.
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Where WhosOn Wins in Competitive Trials

This table shows head-to-head trial scenarios where WhosOn was evaluated against a direct competitor at the same time, and the percentage of deals WhosOn won in those situations. These insights reveal where WhosOn's positioning, product, and value proposition are strongest in real buying decisions. Use this data to focus your GTM efforts on competitive scenarios where you have the highest win probability and avoid wasting resources on deals you're unlikely to close.

LivePerson
75%
Pure Chat
50%
Contact At Once!
40%
Tawk.to
38%
Olark
33%
SnapEngage (Team Support)
30%
Text
22%
Genesys
22%
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Where WhosOn Is Likely to Win New Customers

These accounts are not currently WhosOn customers, but they are actively evaluating alternative solutions where WhosOn has a high win rate. MarketSizer shows you which in-market accounts to target for the highest win probability, so you can act before competitors lock them in.

yoigo.com
75%
holosadvisors.com
75%
ctowncycle.com
75%
urldna.io
50%
svdseguros.com
50%
samsoelinjen.dk
50%
wheatongmc.ca
40%
amherstburggm.com
40%
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Who is trialling WhosOn alternatives right now?

MarketSizer tracks where WhosOn is actively being compared to other tools today. The table below shows current WhosOn customers who are trialling alternative solutions. This gives GTM and Customer Success teams an early warning signal — before renewal conversations, giving you time to intervene, address concerns, and protect revenue before a churn decision is made.

Domain
Trialing
Trial Days
No items found.
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Where WhosOn lost customers in the past 12 months

WhosOn's biggest threats. This view shows where WhosOn lost customers over the past 12 months. Used correctly, this data can inform product strategy, pricing, packaging, and retention plays, not just sales tactics. When current customers trial competitors, your CS team gets an alert immediately, giving you 3-6 months to address concerns and protect revenue.

No items found.
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Turn Competitive Signals into Winnable Opportunities

Every day without MarketSizer, you're missing qualified opportunities while competitors engage first. Unlock the dataset to identify  live opportunities that are an ICP match, have high purchase intent and where you have a high win probability.