
Apache Solr
Enterprise search platform built on Apache Lucene
Category
Database & Data Management software and applications
Every listing shows its published starting price on the same footing, so a shortlist does not take ten tabs.
Counted from the published pricing of the 50 listings on this page. A tool counts as free only where it publishes a $0 plan, an open-source licence or a starting price of zero.
Paid databases plans in this set start anywhere from $0.19 a month for SurrealDB to $47,500 for Oracle Database. The median entry price across the 20 tools that publish one is $44.50, half of them start below that figure and half above it.
36 of 50 publish a $0 plan, and 21 of those charge nothing at all. 5 tools have no free tier of any kind.
14 of 50 keep at least one tier unpriced and sold by quote, which in practice means the number you end up paying at the top end is not on this page or on theirs.
SurrealDB pricingOracle Database pricingOracle Database plans
The billing model each of the 50 databases listings publishes, counted. Two tools at the same headline price are not the same purchase if one of them charges per seat.
Separately, 14 of 50 publish at least one tier with no price attached. Those are sold by quote, so the top of the ladder is negotiable, and unknowable, until you talk to sales.
Every capability named in a published pricing tier by any of the 38 databases tools here that break their plans down, counted once per vendor. This measures what vendors choose to advertise as a selling point, not everything the software does, an absence below is silence, not a missing feature.
Named by exactly one vendor: Advanced features, Basic integrations via Knack Flows, Dedicated VPC infrastructure, Full-text search, Pay per storage, SOC 2 and HIPAA compliance. Those are differentiators rather than table stakes.
The subject tags that recur across these 50 listings, with the number of tools carrying each. A category label is a filing decision; this is the closer read of what is actually filed under it.
Carried by a single tool: .net, Cloud Database, dbaas, high-performance, microservices, optimization, recommendations, scheduling. If one of those is the reason you are here, the category page is the wrong lens, go straight to that product.
Four things the numbers above should change about your shortlist.
36 of 50 databases tools here publish a $0 plan, which is enough to run a real trial without a purchase order. A free tier is worth more than a free trial when you are evaluating: a trial expires on the vendor's schedule, a free plan expires when you outgrow it. The thing to check before you commit is which of the capabilities below sit above the free line, starting with full functionality, the single most frequently named capability in this category's published tiers.
$0.19 to $47,500 is a $47,499.81 spread on entry price alone, and a spread that wide is never about polish, it is about who the vendor built for. Tools at the bottom of this ladder are priced for one person or a small team; tools near $47,500 are priced for a department with a procurement process. Decide which of those you are before you compare capability, or you will shortlist four tools that were never competing for the same buyer.
20 of 50 tools here publish three or more tiers, and the median vendor in this category ships 2.5 of them. The advertised price is the first rung, and the things teams tend to need, full functionality, no usage limits, community support, are named in higher plans far more often than in entry ones. Price your shortlist at the tier that contains what you need, not at the tier on the pricing page's left edge.
This category splits across 16 billing models: freemium on 9 listings, usage-based on 7, and 14 other arrangements across the rest. A per-user price and a flat subscription at the same headline figure are not the same purchase, the first one grows with headcount and the second does not. Multiply by your real team size before you compare two numbers side by side.
Every pairing below is a full comparison: the same checklist applied to both, so a gap in one is a gap in the other.
Answered from the listings on this page, and nowhere else.
Keep this
The shortlist for “Databases”, plus a note if any of their prices change.
Adjacent in the same taxonomy, not a ranking.