All A vs B pages / Analytics and monitoring: all plans compared
Datadog vs Fathom Analytics pricing (October 2026 snapshot)
Every plan row read from the public pricing pages of Datadog and Fathom Analytics, one table per tool, copied from the baseline file of issue #1. Snapshot date: 2026-10-05. Plan rows: 10 for Datadog, 7 for Fathom Analytics.
Pricing pages read (plain text, not links): https://www.datadoghq.com/pricing/ and https://usefathom.com/pricing
AI-assisted, compiled by automated agents. A language model read each pricing page once and an automated agent wrote this page from the baseline file. No person read the pricing pages or this page before it was published. Prices may have changed, confirm on the vendor's page before you act on a figure.
SaaS Pricing Changes is independent and is not affiliated with Datadog or Fathom Analytics. This site contains no affiliate links.
What the baseline holds for both
- Free tier: the free tier column of the baseline says, for Datadog: yes on 10 of 10 plan rows; for Fathom Analytics: no on 7 of 7 plan rows.
- Lowest monthly price above 0: not directly comparable, the two tools share no currency and billing unit among their rows with a monthly price above 0. Datadog: 18 USD, per usage (host) (plan Infrastructure Pro); 0.1 USD, per usage (GB ingested) (plan Log Management ingest); 2.55 USD, per usage (1M events) (plan Log Management standard indexing). Fathom Analytics: 15 USD, per usage (pageviews) (plan Up to 100,000 pageviews).
- Low confidence: 0 of 10 plan rows of Datadog and 0 of 7 plan rows of Fathom Analytics are marked low confidence.
Each line is computed from the two tables below and uses no other figure. Only the Monthly price column is compared, and only between rows of the same currency and billing unit: a figure in the Displayed price column has no billing period recorded in the baseline and is left out, and no price is converted. The lines state what was read and are not buying advice.
Datadog: plans and list prices
| Plan | Displayed price | Currency | Billing unit | Monthly price | Annual price per month | Free tier | Limits | Confidence |
|---|---|---|---|---|---|---|---|---|
| Infrastructure Free | USD | flat | 0 | 0 | yes | up to 5 hosts | 1-day retention | ok | |
| Infrastructure Pro | USD | per usage (host) | 18 | 15 | yes | 15-month retention | ok | |
| Infrastructure Enterprise | USD | per usage (host) | 27 | 23 | yes | 200 custom metrics per host | ok | |
| DevSecOps Pro | USD | per usage (host) | 27 | 22 | yes | ok | ||
| DevSecOps Enterprise | USD | per usage (host) | 41 | 34 | yes | ok | ||
| APM | USD | per usage (host) | 48 | 31 | yes | 150 GB span ingestion | 1M indexed spans | ok | |
| APM Pro | USD | per usage (host) | 54 | 35 | yes | ok | ||
| APM Enterprise | USD | per usage (host) | 60 | 40 | yes | ok | ||
| Log Management ingest | USD | per usage (GB ingested) | 0.1 | 0.1 | yes | ok | ||
| Log Management standard indexing | USD | per usage (1M events) | 2.55 | 1.7 | yes | ok |
Rows marked low confidence: 0 of 10. The notes on this read, the contact-sales mark and any fee column are on the Datadog pricing page.
Fathom Analytics: plans and list prices
| Plan | Displayed price | Currency | Billing unit | Monthly price | Annual price per month | Free tier | Limits | Confidence |
|---|---|---|---|---|---|---|---|---|
| Up to 100,000 pageviews | USD | per usage (pageviews) | 15 | no | 100,000 pageviews/mo | 50 sites | ok | ||
| Up to 200,000 pageviews | USD | per usage (pageviews) | 25 | no | 200,000 pageviews/mo | ok | ||
| Up to 500,000 pageviews | USD | per usage (pageviews) | 45 | no | 500,000 pageviews/mo | ok | ||
| Up to 1,000,000 pageviews | USD | per usage (pageviews) | 60 | no | 1,000,000 pageviews/mo | ok | ||
| Up to 2,000,000 pageviews | USD | per usage (pageviews) | 100 | no | 2,000,000 pageviews/mo | ok | ||
| Up to 5,000,000 pageviews | USD | per usage (pageviews) | 140 | no | 5,000,000 pageviews/mo | ok | ||
| Over 25,000,000 pageviews | USD | custom | no | ok |
Rows marked low confidence: 0 of 7. The notes on this read, the contact-sales mark and any fee column are on the Fathom Analytics pricing page.
How to read the tables
Every value is copied from pricing-baseline-2026-10.csv without rounding; an empty cell means the baseline holds no value for that field. Displayed price holds a figure the page showed that is not recorded as a monthly or annual plan price, such as a usage rate or a figure whose billing period the read could not settle. A row is marked low confidence when the read was ambiguous. Each page was read once and nothing was checked against a second source, so an extraction error is possible on any row. The methodology page describes how the tools were chosen and the limits of the data.
The full baseline as a CSV file
pricing-baseline-2026-10.csv holds every plan row of the 60 tools in one file. Get the October 2026 baseline CSV on Gumroad (60 tools, 276 plan rows), USD 9: a one-time purchase of a fixed file, no subscription, 64 of 276 rows marked low confidence.