Hacker ApprovedDepartments

Firebase Firestore

Ranked 2 of 3 document databases by recommenders

Recommended for realtime queries, easy setup and lower cost than Postgres for some apps. Critics say costs climb at scale and querying is limited.

Recommended for realtime queries, easy setup and lower cost than Postgres for some apps. Critics say costs climb at scale and querying is limited.

13 people gave an opinion

recommend it
6
criticize it
7
approval share
46%
Each figure is one person. RecommendsCriticizes

Recommended in 4 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: not recommended
  6. April 2026: recommended
  7. May 2026: not recommended
  8. June 2026: recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 6 people recommend itNeeds 10 or more, not met.
  • 0.8 recommenders for every criticNeeds 2 to 1 or better, not met.
  • Recommended in 4 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

What people warn about

Each mark is one comment

  • Costs add up at scale

    “All managed services like cloud datastore, firestore all tend to accure lots of costs if you've good size app.”

    Comment from 27 Mar 2026 in “We Rewrote JSONata with AI in a Day, Saved $500K/Year”

    “It's very bad to search stuff, or have structured database, also it costs a lot”

    Comment from 5 Feb 2026 in “It's 2026, Just Use Postgres”
  • Weak querying and search

    “It's very bad to search stuff, or have structured database, also it costs a lot”

    Comment from 5 Feb 2026 in “It's 2026, Just Use Postgres”

    “its querying was sorely lacking”

    Comment from 24 Jan 2026 in “Unveiling Firestore Pipeline operations – Firestore's powerful new query engine”
  • Teams migrate off to Postgres or SQLite

    “Firestore is an acquired taste so we rewrote the OSS backend to Postgres”

    Comment from 23 Apr 2026 in “Show HN: Broccoli, one shot coding agent on the cloud”

    “migrated a non-trivial firestore app to sqlite”

    Comment from 9 Oct 2026 in “Our $445M Series D”

Other document databases people recommend

The two most recommended other document databases, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Firebase Firestore compared with 2 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
MongoDB5213927%1210 yrs6 owners—
Firebase FirestoreThis page6746%4——
RethinkDB5271%4——
See all 3 document databases, ranked

What people said

12 of the 14 comments that mention it, newest first. Each links to the original comment.

“migrated a non-trivial firestore app to sqlite”

CriticizesComment from 9 Oct 2026 in “Our $445M Series D”

“could have just written the data to something like Firestore and been, like, totally fine”

RecommendsComment from 4 Sep 2026 in “Ok, but does it scale?”

“it's almost like the product gives you the false impression that you're done setting it up”

CriticizesComment from 5 Aug 2026 in “Tl;Dv (Too Lazy; Didn't Validate): 181,874 Meetings Left Wide Open”

“CosmosDB, Google Firestore, Kusto, Elastic, Druid, and many columnar formats are in this category of "magically" faster!”

MixedComment from 7 Jun 2026 in “Do we fear the serializable isolation level more than we fear subtle bugs?”

“I ended up leaning on Firestore realtime queries, the harness on the agent VM is subscribed and can interrupt the agentic loop”

RecommendsComment from 23 Apr 2026 in “Show HN: Broccoli, one shot coding agent on the cloud”

“Firestore is an acquired taste so we rewrote the OSS backend to Postgres”

CriticizesComment from 23 Apr 2026 in “Show HN: Broccoli, one shot coding agent on the cloud”

“I went with Firestore over Postgres for the lower cost”

RecommendsComment from 22 Apr 2026 in “Show HN: Broccoli, one shot coding agent on the cloud”

“All managed services like cloud datastore, firestore all tend to accure lots of costs if you've good size app.”

CriticizesComment from 27 Mar 2026 in “We Rewrote JSONata with AI in a Day, Saved $500K/Year”

“there's no enforcement layer by default”

CriticizesComment from 2 Mar 2026 in “How do you catch schema drift and security gaps in Firestore?”

“I was kind of surprised on how it's easy to use”

RecommendsComment from 6 Feb 2026 in “It's 2026, Just Use Postgres”

“It's very bad to search stuff, or have structured database, also it costs a lot”

CriticizesComment from 5 Feb 2026 in “It's 2026, Just Use Postgres”

“its querying was sorely lacking”

CriticizesComment from 24 Jan 2026 in “Unveiling Firestore Pipeline operations – Firestore's powerful new query engine”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.