
Otter.ai
Fireflies.ai
tl;dv
Granola.so
Notta.ai
Meetgeek.ai
SysGears Grain Framework
Financial intelligence and performance reporting

Triple Whale
Elevar
Littledata
Analyzify
Stape.io
Server-side tracking and identity resolution for Shopify brands.

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | fathomhq.com | upstackdata.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2023 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Fathom yet.
Upstack Data is the #1 Most Reliable Ad Tracking Software For Shopify. We help ecommerce brands identify, enrich, and activate first-party data to lower acquisition costs and drive advertising results. Our server-side tracking captures 99.9% of conversion events and delivers a 90%+ event match...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
2019 Giant Fathom Test Ride and Review
More videos
No Upstack Data videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Fathom and Upstack Data.
Upstack Data's answer:
Upstack Data works with DTC Shopify brands including Perfect White Tee, Maelove, Labucq, Printfresh, Champo, Paire, Montreal Weights, and Aquarium Co-op.
Upstack Data's answer:
Upstack Data was founded by Michael Alt to solve a problem hurting Shopify brands: browser-based tracking quietly loses data to iOS restrictions, ad blockers, and cookie expiration, leaving ad platforms optimizing on incomplete information. By capturing conversion events server-side and resolving visitor identity across devices, Upstack Data gives Meta, Google, and Klaviyo the data they need to optimize for buyers, not browsers — helping brands drive 7- and 8-figure growth and recover millions in revenue.
Upstack Data's answer:
Upstack Data is built on server-side event capture through the Conversion API (CAPI), a cross-device identity resolution engine (Upstack ID), a multi-touch attribution model, and native Klaviyo integration for abandonment recovery.
Upstack Data's answer:
DTC Shopify brands running Meta, Google, and TikTok ads — typically those spending $50K–$5M per month on advertising who want to reduce the data loss caused by iOS restrictions, ad blockers, and cookie expiration.
Upstack Data's answer:
Most tools track anonymous actions. Upstack Data resolves the actual identity of visitors across browsers, devices, and sessions, then sends that enriched data to Meta, Google, and Klaviyo in a form they can act on — driving lower CAC, better attribution, and more recovered revenue. The result is a 90%+ Meta CAPI match rate, versus the ~35% typical of standard implementations.
Upstack Data's answer:
Upstack Data replaces a multi-tool stack — like Elevar plus Triple Whale — with a single server-side tracking and identity resolution platform, at a fraction of the cost. Setup takes about 30 minutes with no developer required, and every plan comes with a 10-day free trial and a 60-day money-back guarantee.
Share your experience with using Fathom and Upstack Data. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We also read the code of these six scripts. Plausible, Fathom, Umami and Pirsch read one entry from localStorage, a switch a site owner can set in their own browser to leave out their own visits. Fathom writes that...
The finance director of a 12-entity hospitality group had been using Fathom for two years. Her team loved the dashboards. When the group acquired three companies in New Zealand, she expected Fathom to handle the...
Fathom is an AI-powered notetaker designed to record, transcribe, and summarize meetings. It integrates with popular video conferencing platforms like Zoom, Google Meet, and Microsoft Teams. Fathom aims to enhance...
We have no reviews of Upstack Data yet. Be the first one to post
When comparing Fathom and Upstack Data, you can also consider the following products.

Your AI meeting assistant that takes live notes and generates summaries and other insights using Meeting GenAI.
Compare Otter.ai to Fathom or Upstack Data:

Triple Whale helps ecommerce brands make better decisions with better data.
Compare Triple Whale to Fathom or Upstack Data:

Record, transcribe and search your calls
Compare Fireflies.ai to Fathom or Upstack Data:

Deploy a data layer, connect to 40+ marketing channels, ensure all of your conversions are tracked, and enable server side tagging for Shopify.
Compare Elevar to Fathom or Upstack Data:

📆 Add tl;dv to any meeting from any provider 🎥 Capture meeting moments on the fly --> Save everyone's time --> Keep colleagues up to date
Compare tl;dv to Fathom or Upstack Data:

Award-winning Google Analytics toolbox for Ecommerce sites
Compare Littledata to Fathom or Upstack Data: