MySQL
Depends
Confidence: High
Buy it if you're a developer running a web app . the free Community Edition is battle-tested and cheap to grow with.
Comparison
MySQL vs MongoDB
MySQL and MongoDB both land on Depends.
MongoDB
Depends
Confidence: Medium
Buy MongoDB if you have developers and document-shaped, fast-changing, high-write data.
| Compare | MySQL | MongoDB |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Developers building web apps | Document-heavy, fast-changing schemas |
| Who it's not for | Non-technical teams that just need a contact list | Relational, join-heavy data . reviewers say Postgres wins |
| Privacy | Actively maintained; recurring CVEs patched through Oracle Critical Patch Updates.⁷ | Active threat surface: critical 2025 memory-disclosure CVE reportedly exploited in the wild, plus a 2023 customer-data incident; patches released. |
| Support quality | No clear evidence | Trustpilot cites 'big company with 0 support' |
| Public sentiment | Reviewers praise transactional performance and value, while critics cite performance/speed issues and some teams migrating to Postgres.¹ | Users love the flexibility and quick start for document data, but commonly gripe about support, scaling costs, and default to Postgres for relational work. |
| Biggest gotcha | Best features sit behind Oracle's paid per-server Enterprise licenses | MongoBleed (CVE-2025-14847): exposed or misconfigured instances were targeted; patch fast and audit exposure. |
Pick MySQL when
- Developers building web apps
- High-transaction backends
- Cost-conscious teams wanting open source
- Existing LAMP-stack shops
When MySQL is not a fit
- Non-technical teams that just need a contact list
- Small teams without a DBA or ops budget
- Buyers wanting cutting-edge SQL features . Postgres fits better
- One-person projects where a spreadsheet suffices
Pick MongoDB when
- Document-heavy, fast-changing schemas
- High-write, non-relational workloads
- Developer-led product teams
- AI app data layers
When MongoDB is not a fit
- Relational, join-heavy data . reviewers say Postgres wins
- Average CRUD apps . Reddit discourages it
- Non-technical teams wanting a simple data list
- Anyone without a developer on staff
Sources
review
- MySQL Reviews from Real Users . TrustRadiustrustradius.comreview
- MySQL Software Reviews, Demo & Pricing . SoftwareAdvicesoftwareadvice.comreview
- MySQL Licensing 2026: Editions and Real Costredresscompliance.comofficial
- MySQL Pricing Explained . Airbyteairbyte.comofficial
- MySQL CVE List . CVE Detailscvedetails.comsecurity
security
- Leaving MySQL . Reddit r/programmingreddit.comreview
news
- MySQL Enterprise Customer Successesmysql.comofficial
- MongoDB Reviews | G2g2.comreview
- MongoDB Reviews | Trustpilottrustpilot.comreview
- MongoDB Reviews | Gartner Peer Insightsgartner.comreview
- MongoDB Reviews | Capterracapterra.comreview
review
- MongoDB Pricing | MongoDBmongodb.comofficial