Slowpoke compared with the alternatives

Every page here says plainly what the other tool does better, because a comparison that only flatters us is worth nothing to someone deciding what to install this week. Slowpoke is free and self-hosted, so there is no sale to protect.

What it costs

The table nobody selling you monitoring will print

Public list prices, read in September 2026, for three shapes of team. Every figure is an estimate and real invoices carry discounts and commitments โ€” and where a vendor's tiers are not public enough to compute a number honestly, the cell says what the meter is instead of inventing one. That restraint is the whole point of the table.

Tool, and what it metersSmall3 servers ยท 1M requests a month ยท 5 engineersGrowing12 servers ยท 10M requests a month ยท 15 engineersBigger40 servers ยท 50M requests a month ยท 40 engineersThe detail
SlowpokeNothing is metered €0€0€0 Open source and self-hosted. You pay for the machines you already run.
Datadog APMPer host, counted hourly and billed at the peak โ‰ˆ $1,100 a yearโ‰ˆ $4,500 a yearโ‰ˆ $14,900 a year At about $31 per host per month on an annual commitment. APM only: infrastructure, logs, RUM and synthetics are separate products, and ingested spans beyond the included allowance are extra.
New RelicPer gigabyte ingested, plus a licence per person โ‰ˆ $2,400 a yearโ‰ˆ $28,700 a yearโ‰ˆ $75,800 a year At list: Full Platform users about $349 a month each, Core users about $49, data at $0.40 a gigabyte, with 100 GB and one full user free. Assumes 1/5/12 full users and 4/10/28 core users, and 50 GB, 500 GB and 2 TB of ingest.
Sentry, self-hostedNo licence; you pay in infrastructure €0 + the fleet€0 + the fleet€0 + the fleet Self-hosted Sentry is free to run and is a fleet: Relay, Kafka, ClickHouse and Postgres. The cost is the servers and the person who keeps it alive.
AppSignalPer request โ€” a web request or a background job from โ‰ˆ $279 a yeara higher request tiera higher request tier From about $23 a month, roughly $279 a year at 250,000 requests a month. Unlimited apps, hosts and users, which is unusually fair. Larger tiers are not public enough to compute honestly.
Scout MonitoringTransaction tiers, plus log storage from โ‰ˆ $19 a monthnamed plans from โ‰ˆ $161 a monthnamed plans from โ‰ˆ $161 a month Build-your-own tiers start around $19 a month; Basic, Plus and Pro list at roughly $161, $249 and $499. The driver people underestimate is logs: 1 GB included, about $40 a month per additional 30 GB.
Laravel NightwatchPer event โ€” every query, job and cache hit €0 under 300k eventsโ‰ˆ $40โ€“80 a month at 1M+ eventsscales with events One ordinary request can emit a dozen events, so event volume runs well ahead of request volume. Overage is about $0.35 per 100,000 on the lower paid tiers.
TidewaysPer PHP request, monthly limit from โ‰ˆ €29 a montha higher request tiera higher request tier Team from about €29 a month at 250,000 requests, Business from about €89, and a Flex plan from about €69 with unlimited applications under one shared request limit.
BlackfirePer trace quota, from one million a month a traces quotaa traces quotaa traces quota A profiler rather than a monitor, so traces are taken deliberately rather than continuously. Public pricing starts at one million traces a month.
SigNoz, self-hostedNo licence; you pay for ClickHouse €0 + ClickHouse€0 + ClickHouse€0 + ClickHouse The open source core is free. At volume the storage backend, not the tool, decides the bill โ€” and somebody has to run it.
Coroot, self-hostedNo licence for the open source core €0€0€0 Genuinely flat at volume, which is one of its better arguments. Needs privileged eBPF and is happiest on Kubernetes.
Percona PMMNo licence €0€0€0 Free and self-hosted, and the server bundles Grafana, a metrics store and a query analytics backend. Databases only.
Elastic APMNo licence for the free tier; you pay for the cluster €0 + Elasticsearch€0 + Elasticsearch€0 + Elasticsearch Close to free if the Elastic Stack is already in the building. A search cluster to operate if it is not.
Grafana stackNo licence; you pay in assembly and storage €0 + the work€0 + the work€0 + the work Prometheus, Loki, Tempo and Grafana cost nothing to license and a great deal to put together and keep.
Laravel PulseNothing is metered €0€0€0 Free and first-party, and it writes to your application's own database. One app, live window only.
SonarQube CommunityNo licence for Community; paid editions by lines of code €0 Communityby lines of codeby lines of code A different category: it reads the repository in CI rather than watching production.

Slowpoke is open source and self-hosted: there is no licence, no host count, no seat count and no event count, so the column stays at zero however far right you read. What you pay for is the machines you were already paying for.

All of them at once

Sixteen tools, six questions, and what each one is genuinely best at

The last column is the honest one, and for most rows it does not say Slowpoke. A tick means the tool does this properly; a tilde means partly, or with a condition worth reading on its page.

ToolSelf-hostedFreeFinds your estate for youRanks by business costQuery plan and the fixFile and line of the queryBest at
SlowpokeyesyesyesyesyesyesDeciding what to fix first, and proving the fix held
DatadognonopartlynopartlynoKnowing what is happening right now, across everything
New RelicnopartlypartlynopartlynoOne broad platform, if you can pay per person
SentrypartlypartlynononopartlyErrors: what threw, where, and for whom
AppSignalnononononopartlyA hosted APM that does not charge per host or per seat
Scout MonitoringnononononoyesN+1 detection across four ORMs, with the backtrace
SigNozyesyesnonononoAn OpenTelemetry-native store for traces, logs and metrics
CorootyesyesyesnononoA service map on Kubernetes with no instrumentation at all
Percona PMMyesyespartlynoyesnoThe deepest free view of a database engine
Elastic APMyespartlynonononoTraces next to the logs you already keep in Elasticsearch
Grafana stackyesyesnonononoBuilding exactly the dashboard and alert you had in mind
BlackfirenononononoyesThe call graph inside one request, function by function
TidewaysnononononoyesPHP monitoring and a callgraph profiler from one vendor
Laravel NightwatchnopartlynononoyesThe widest first-party instrumentation inside Laravel
Laravel PulseyesyesnononopartlyA free live wall for one Laravel app, in five minutes
SonarQubeyespartlynonononoHolding the code itself to a standard, in CI

One at a time

The full comparison, tool by tool

PHP profilers

Not really rivals. A profiler explains what happens inside one request; Slowpoke tells you which request is worth profiling. For a PHP team the honest answer is usually both.

Framework tools

Excellent inside one framework. Slowpoke covers the framework, the machine it runs on, the database behind it and the four other services nobody instrumented.

Code analysis and technical debt

They read your repository. Slowpoke reads the system that is actually running, and prices the debt in the time your users lose.

Or just try it

One server, Docker, fifteen minutes. It takes less time than reading a comparison table.