Backend as a Service — procurement report
ProductArena · rankings as of 2026-09-16 · evidence as of 2026-09-16 · 4 products · 51 judged requirements · 204 judged cells
Methodology: Every product is judged against a shared taxonomy of user stories using cited evidence — hands-on probes > repository code > independent community sources > vendor claims — never opinion. Full writeup: https://ultrametric.ai/productarena/methodology
Leaderboard
| # | Product | PA Score | Coverage score | Applicable cells | Confidence |
|---|---|---|---|---|---|
| 1 | Supabase | 44.9 | 44.5 | 49/51 | B |
| 2 | Appwrite | 38.0 | 38.2 | 51/51 | B |
| 3 | Firebase | 35.4 | 39.8 | 51/51 | B |
| 4 | Convex | 30.7 | 32.2 | 50/51 | B |
PA Score = agent-readiness blend (see methodology). Coverage score = weighted share of judged requirements met. Confidence = how much of the score rests on tested vs claimed evidence (A–D).
Uncertainty note
The current #1/#2 gap in this arena is not close enough to qualify for the multi-judge uncertainty pass (or the pass has not covered it yet) — no extra caveat applies beyond the per-product confidence grades above.
Buyer checklist (RFP)
The arena's 51 judged user stories as requirements, grouped by theme. Priorities mirror the story weights our scoring uses (3 = must-have, 2 = should-have, 1 = nice-to-have). Interactive version with per-requirement verdicts for the top products: /arena/backend-as-a-service/checklist
Agenticness — how well agents can access and operate the productAgenticness
How well agents can access and operate the product
- ai-native userPlug MCP servers into this product so it can use their toolsmust-have
- ai-native userConnect an agent via an official MCP servermust-have
- ai-native userDrive the product through a documented public APImust-have
- ai-native userDelegate tasks to a built-in AI assistant inside the productmust-have
- ai-native userPoint an agent at llms.txt or agent-oriented docsshould-have
- ai-native userRun the product headlessly / in CI for automationshould-have
- ai-native userUse an official CLIshould-have
- ai-native userIssue scoped/least-privilege API credentials for an agentshould-have
- ai-native userBuild against official SDKsshould-have
- ai-native userSubscribe to events via webhooksshould-have
- ai-native userGet AI-generated insights and suggestions from my data inside the productshould-have
- ai-native userSet up automations that run autonomously in the backgroundshould-have
- ai-native userOperate the product with natural-language commandsshould-have
- ai-native userExplore an interactive API reference with runnable examplesshould-have
- ai-native userDownload a machine-readable API spec (OpenAPI or equivalent)should-have
- ai-native userRely on versioned APIs with a documented deprecation policyshould-have
- ai-native userTest against a sandbox environment without touching production datanice-to-have
Ai vector — stories about ai vector in this arenaAi vector
Stories about ai vector in this arena
- developerStore embeddings and run vector similarity search for AI featuresmust-have
- ai-native userAsk an AI assistant in the dashboard to write queries, debug errors, and explain my backendshould-have
Auth — stories about auth in this arenaAuth
Stories about auth in this arena
- developerAdd email/password and social OAuth sign-in with the platform SDK in minutesmust-have
- platform-engineerRequire MFA and enterprise SSO (SAML/OIDC) for my application usersshould-have
Automation depth — how much of the product can run unattendedAutomation depth
How much of the product can run unattended
- ai-native userDefine rules that trigger actions automatically on eventsmust-have
- ai-native userPerform bulk operations across many items at onceshould-have
- ai-native userSchedule recurring jobs or workflowsshould-have
- ai-native userVersion, review, and roll back my automationsnice-to-have
Database realtime — database and realtime features — queries, subscriptions, live syncDatabase realtime
Database and realtime features — queries, subscriptions, live sync
- developerProvision a managed database and read/write it from client and server SDKsmust-have
- developerSubscribe to live data changes so my UI updates in real time without pollingmust-have
- developerConnect to the underlying database with standard clients and ORMs via a connection stringshould-have
- developerExpress relational queries with joins, constraints, and transactionsshould-have
- developerBuild offline-capable clients whose local writes sync automatically on reconnectshould-have
- developerRun full-text search over my data without wiring up an external search serviceshould-have
- developerTrack user presence and broadcast ephemeral state between connected clientsnice-to-have
Functions — stories about functions in this arenaFunctions
Stories about functions in this arena
- developerDeploy server-side functions invoked by HTTP or SDK calls without managing serversmust-have
- developerRun functions automatically in response to database or auth eventsshould-have
Local dev — stories about local dev in this arenaLocal dev
Stories about local dev in this arena
- ai-native userHave an agent stand up a new backend — schema, auth, and policies — headlessly from the CLI in a scriptmust-have
- developerRun the whole backend stack locally with an emulator or CLI before deployingmust-have
Openness — open source, data portability, and self-hosting storiesOpenness
Open source, data portability, and self-hosting stories
- ai-native userExport all of my data in open formats and leavemust-have
- ai-native userSelf-host the core productmust-have
- ai-native userDo everything through the API that I can do in the UIshould-have
- ai-native userRead the product's source under an open licenseshould-have
Privacy posture — data-handling and privacy storiesPrivacy posture
Data-handling and privacy stories
- ai-native userPrevent my data from being used to train AI modelsmust-have
- ai-native userChoose where my data is stored (region/residency)should-have
- ai-native userControl data retention and deletionshould-have
- ai-native userOpt out of telemetry and usage trackingshould-have
Schema migrations — stories about schema migrations in this arenaSchema migrations
Stories about schema migrations in this arena
- ai-native userLet an agent create and test schema changes in an isolated branch or preview environment before productionmust-have
- developerManage schema changes as version-controlled migrations applied via the CLI or CImust-have
- developerGenerate typed client code (e.g. TypeScript types) from my schema automaticallyshould-have
Security rules — stories about security rules in this arenaSecurity rules
Stories about security rules in this arena
- developerRestrict data access per user with row-level security policies or security rulesmust-have
- platform-engineerRely on automated backups and point-in-time recovery for my datashould-have
Storage — stories about storage in this arenaStorage
Stories about storage in this arena
- developerUpload and serve user files with access rules and CDN-backed deliverymust-have
- developerServe resized or transformed images from storage without running my own image pipelinenice-to-have
Appendix: recorded probes
No replayable probe recordings exist for this arena yet. Probe-tier evidence (hands-on checks) still backs verdicts where cited — see each product page for the evidence trail.
Cite as: ProductArena by Ultrametric Inc, Backend as a Service arena, rankings as of 2026-09-16 — https://ultrametric.ai/productarena/arena/backend-as-a-service
License: © 2026 Ultrametric Inc. Brief quotation of individual verdicts, scores, or evidence excerpts is permitted with attribution to "ProductArena by Ultrametric Inc (ultrametric.ai/productarena)", as is use of the data to evaluate, contest, or contribute corrections. Bulk copying, redistribution, or use to build competing datasets requires prior written permission (see DATA-LICENSE in the repository).
No liability: rankings, verdicts, and scores are research outputs derived from the cited evidence at a point in time, provided "as is", without warranties. Ultrametric Inc accepts no responsibility for procurement, purchasing, or other decisions made in reliance on them — verify against the cited evidence before acting (https://ultrametric.ai/productarena/terms).