FullStory vs Heap

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Heap is the stronger AI pick in Product Analytics: it has a visibility score of 36.1 versus 9.1 for FullStory, and ranks ahead in 81% of the answers that name both.

Choose FullStory if…

AI answers describe it more positively (19% vs 15% positive)
You need SOC 3 or ISO 42001 coverage
Flat tiers pricing suits your budget better than usage-based
session replay and UX friction analysis

Choose Heap if…

You want the brand AI engines rank higher (36.1 vs 9.1)
You need GDPR compliant or CCPA compliant coverage
Usage-based pricing suits your budget better than flat tiers
Automatic event capture (autocapture)

AI visibility side by side

Latest weekly run · Nov 3

Metric	FullStory	Heap
Visibility score	9.1%	36.1%
Change vs last week	up+0.1%	up+9.1%
Rank in Product Analytics	#9	#4
Share of voice	3.8%	11.1%
Mentions this run	19	52
Positive in AI answers	19%	15%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

FullStory +0.1999999999999993pp · Heap +9.100000000000001pp over 1 weekly runs.

Engine by engine

Heap leads on 3 of 3 engines

ChatGPT

7.8%

43%

AI Mode

5.4%

31.3%

Perplexity

14.1%

34.1%

FullStoryHeap

Head to head in AI answers

16 engine answers name both brands

3FullStory ranked higher

13Heap ranked higher

Prompt	Engine	FullStory	Heap
What is a product analytics tool and when does a company need one?	Perplexity	#2	#4
How do I choose a product analytics tool for a mid-market team?	AI Mode	#3	#7
How do I choose a product analytics tool for a mid-market team?	Perplexity	#5	#4
What should a product analytics tool integrate with?	ChatGPT	#2	#11
What are the best Product Analytics tools in 2026?	ChatGPT	#13	#4
What are the best Product Analytics tools in 2026?	Perplexity	#7	#4
Top product analytics tool options for B2B SaaS companies	ChatGPT	#8	#5
Top product analytics tool options for B2B SaaS companies	Perplexity	#8	#5
Best product analytics tool for enterprise	AI Mode	#7	#3
Compare the leading Product Analytics platforms	ChatGPT	#9	#4
Compare the leading Product Analytics platforms	Perplexity	#6	#3
Alternatives to the most popular product analytics tool	ChatGPT	#9	#4

Features, pricing & fit

Dimension	FullStory	Heap
Pricing model	Flat tiers	Usage-based
Entry price	Contact sales	Contact sales
Free plan	Yes	Yes
Deployment	—	Cloud-based; deployment starts by installing a free tracking snippet on the site
Integrations	—	100+
Compliance	SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, ISO 42001	SOC 2 Type II, GDPR compliant, CCPA compliant, ISO 27001, ISO 27701, ISO 27017, ISO 27018
Support	Onboarding with Fullstory specialists, Professional services: Insights+ consulting and Data+ configuration, Advantage Subscription expert guidance	Email support, Standard support, Dedicated customer success manager (Premier), Heap Community
Founded	2014	—
Headquarters	Atlanta, GA, United States	—
Employees	501–1,000	—
Funding	Series C (one source: $32M led by Stripes)	Series D · $205M raised
Best for	Product, UX, and growth teams	Product and growth teams that want complete user behavior data without engineering-led event tagging