Stellar Sleep vs Zeffy

Side-by-side comparison of AI visibility scores, market position, and capabilities

Zeffy leads in AI visibility (26 vs 21)

Stellar Sleep

EmergingHealthcare

General

US YC W23 digital CBT-I sleep therapy at $60/month with 50% better results than sleeping pills; $6.5M total ($6M Initialized/YC/Goodwater seed Feb 2024) treating chronic insomnia psychologically competing with Sleepio.

AI VisibilityBeta
Overall Score
D21
Category Rank
#583 of 1167
AI Consensus
65%
Trend
stable
Per Platform
ChatGPT
23
Perplexity
27
Gemini
17

About

Stellar Sleep is a United States-based digital sleep therapy platform — backed by Y Combinator (W23) with $6.5 million in total funding including a $6 million seed in February 2024 led by Initialized Capital with Y Combinator, Lombardstreet Ventures, Switch Ventures, Moonfire Ventures, Scrum Ventures, 8vdx, and Goodwater Capital — providing chronic insomnia sufferers with a $60/month mobile app that delivers CBT-I (cognitive behavioral therapy for insomnia), acceptance and commitment therapy, and motivational interviewing through a structured program clinically validated to be 50% more effective than sleeping pills for long-term insomnia resolution. Founded in 2023, Stellar Sleep treats the root psychological and behavioral causes of insomnia rather than masking symptoms with pharmaceutical or supplement approaches.

Full profile

Zeffy

EmergingNonprofit Tech

Zero-Fee Fundraising

Montreal zero-fee nonprofit fundraising platform with $1B+ processed; 100% donation pass-through via optional donor tips competing with Donorbox and Classy for nonprofit fundraising technology adoption.

AI VisibilityBeta
Overall Score
D26
Category Rank
#1 of 1
AI Consensus
68%
Trend
stable
Per Platform
ChatGPT
19
Perplexity
26
Gemini
17

About

Zeffy is a Montreal-based fundraising platform for nonprofit organizations that charges zero platform fees on donations — asking donors to optionally contribute a tip to cover Zeffy's operating costs rather than deducting fees from each donation, ensuring 100% of every donated dollar reaches the nonprofit cause. Founded in 2019 by Thibaut Davoult and Nicolas Lafleur, Zeffy has processed $1+ billion in nonprofit donations and provides a comprehensive suite including online donation forms, event ticketing, peer-to-peer fundraising campaigns, recurring donation management, and membership management — giving nonprofits a full fundraising platform at genuinely zero cost.

Full profile

AI Visibility Head-to-Head

21
Overall Score
26
#583
Category Rank
#1
65
AI Consensus
68
stable
Trend
stable
23
ChatGPT
19
27
Perplexity
26
17
Gemini
17
13
Claude
29
15
Grok
18

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