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Which one fits you.

Pick Fullstory if

You are a large company that needs the deepest replay and search, with governance and a team to run it.

  • You have analysts or a UX team who work in session data every day
  • Procurement, SSO and security reviews are part of how you buy
  • You want behavioral data flowing into your CRM and BI tools

Pick GrainQL if

You have no data team and want the cause of a drop named for you, at a price you can read on a page.

  • Nobody on your team has time to search and watch recordings
  • You want the analyst included in the plan, not quoted as an add-on
  • You need to know the monthly cost before you talk to anyone

What actually differs.

Three situations where the choice shows.

Asking why is on every plan.

Checkout conversion fell last week. You have thousands of sessions and one hour to find out what broke.

Fullstory

Fullstory lets you search and segment every session, and StoryAI can summarize them. Asking it why needs the StoryAI Premium add-on, and it answers about the view you have open.

GrainQL

Neo takes the question in plain words and gives a first answer in about 3 seconds. It names the cause and attaches the session recordings that show it.

You know the price before the call.

You have a few hundred dollars a month to spend. Your founder wants the number today, not after three meetings.

Fullstory

Fullstory has a free plan with 30,000 sessions a month. Past that, every paid plan is a quote from sales, and StoryAI and mobile are sold as add-ons.

GrainQL

GrainQL publishes its prices, from $29 to $299 a month. Neo, replay and heatmaps are on every plan, and the 14-day trial needs no credit card.

Depth needs someone to run it.

You bought the tool with every feature. Six months later two people log in, and nobody has built the segments the rollout plan promised.

Fullstory

Fullstory captures everything and rewards teams who define elements, build segments and keep dashboards current. That depth pays off when someone owns it.

GrainQL

GrainQL installs with one script tag in about two minutes. Neo sends a daily digest and flags drops without being asked, so it works on the days nobody logs in.

Row by row.

Checked against Fullstory's own site in October 2026.

Finding the cause

Ask why in plain words
Fullstory
Partly.StoryAI Premium add-on
GrainQL
Yes.Neo, on every plan
Flags drops without being asked
Fullstory
Partly.Opportunities, Premium add-on
GrainQL
Yes.Daily digest and alerts
Frustration signals and session search
Fullstory
Yes.Rage clicks and more
GrainQL
Partly.Rage and dead clicks, no search
MCP server for Claude or Cursor
Fullstory
Yes.Fullstory MCP
GrainQL
Yes.Yes

Seeing the evidence

Session replay
Fullstory
Yes.Yes
GrainQL
Yes.On every plan
Heatmaps
Fullstory
Yes.Yes
GrainQL
Yes.Click and scroll
Captures every interaction by default
Fullstory
Yes.Fullcapture
GrainQL
Partly.Visual picker, no code
Funnels and journeys
Fullstory
Yes.Yes
GrainQL
Yes.Tracks and Channels
Mobile app SDKs
Fullstory
Yes.Add-on. Also Flutter, React Native
GrainQL
Yes.Native iOS and Android

Setup and upkeep

Start a paid plan without sales
Fullstory
No.Paid plans are quoted
GrainQL
Yes.14-day trial, no card
Free plan
Fullstory
Yes.30,000 sessions a month
GrainQL
No.Trial only
Sync data to CRM, CDP and BI tools
Fullstory
Yes.Fullstory Anywhere
GrainQL
No.Query API only
In-app guides and surveys
Fullstory
Yes.Paid add-on
GrainQL
No.No

Data and governance

EU data hosting
Fullstory
Yes.On request. Default is US
GrainQL
Yes.Finland, by default
Works without cookies
Fullstory
No.Sets first-party cookies
GrainQL
Yes.Cookieless by default
Single sign-on
Fullstory
Yes.Yes
GrainQL
Partly.Enterprise plan

What it costs.

Under 30,000 sessions a month, Fullstory's free plan costs less than GrainQL. Above that, you need a quote to compare.

Fullstory

Fullstory has a free plan with 30,000 sessions a month. Business, Advanced and Enterprise are quoted by sales, with StoryAI and mobile sold as add-ons.

When Fullstory is the better pick.

Fair is fair.

Enterprise depth and governance.

You need SSO, security reviews and a choice of US or EU data center. Your procurement team wants a vendor it already knows. Fullstory is built for that.

A free plan that stays free.

FullstoryFree gives up to 10 users session replay on 30,000 sessions a month, with 12 months of retention. GrainQL has a 14-day trial and no free plan.

Mobile frameworks, guides and data sync.

Fullstory covers Flutter and React Native apps, in-app guides and surveys, and sends behavioral data to your other tools. GrainQL has native mobile SDKs only, no surveys and no sync.

Try both for two weeks.

GrainQL runs next to Fullstory on the same page. Keep Fullstory where it is, add one tag, and judge by what each tool tells you.

  1. 1

    Add the GrainQL tag.

    Paste one script tag in the head, or add it through GTM. Leave the Fullstory snippet and your saved segments exactly as they are.

  2. 2

    Ask both the same question.

    Pick one real drop-off. Search it in Fullstory the way you do today, then ask Neo why it happened. Note how long each takes and what you learn.

  3. 3

    Decide on day 14.

    If your team uses Fullstory's depth every week, keep it. If Neo's answers covered what you needed, put your renewal quote next to GrainQL's price list.

Get the side-by-side test plan.

One page on running GrainQL next to Fullstory: what to install, what to compare, how to decide.

Questions.

Yes. FullstoryFree is a permanent plan with 30,000 sessions a month, 12 months of data retention and up to 10 users. Paid Fullstory plans are quoted by sales. GrainQL has no free plan, only a 14-day trial with no credit card.