FusionReactor vs Middleware
FusionReactor
fusion-reactor.com
Middleware
middleware.ioSide by side
| Figure | FusionReactor | Middleware |
|---|---|---|
| Price from | $22/mo | $0.30/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 6 | 3 |
| Spec score · Continuous Profiling Tools | 8.2 (#10) | 8.9 (#4) |
| Spec score · Application Performance & Observability - Enterprise Software | 8.2 (#9) | 9.0 (#4) |
| Headquarters | Ebhausen, Germany | San Francisco, California |
| OpenTelemetry | The Q2 2026 product update says the agent can export Java and ColdFusion telemetry to OpenTelemetry-compatible backends including Datadog, New Relic, Grafana Cloud, Honeycomb, and Splunk. | Middleware uses OpenTelemetry collectors and SDKs as its instrumentation layer and accepts existing customer OTel pipelines. |
| Security | The security page states Intergral Information Systems GmbH is SOC 2 Type 2 compliant and that personal data processing is GDPR compliant. | Middleware says customer data is encrypted at rest and in transit using TLS 1.2+ and AES-256. |
| Support | The site provides a Contact Support page for requesting assistance. | Free users receive community support, pay-as-you-go customers get a dedicated Slack or Teams channel, and custom-contract customers receive an account team and 24x7 support. |
Plans
FusionReactor
- Developer License$22 a month
- Starter Cloud$49 a month
- FusionReactor APM$79 a month
- Pro AI Cloud$249 a month
- Advanced AI Cloud$899 a month
- CustomPriced on request
In their own words
FusionReactor
FusionReactor has no write-up on Specifiction yet; its figures are above.
Middleware
Middleware is a hybrid observability platform for detecting and resolving issues across infrastructure, application performance, and real-user monitoring. Its listed coverage includes infrastructure monitoring, logs, metrics, distributed tracing, database monitoring, synthetic monitoring, browser testing, and LLM observability. The AI SRE Agent and OpsAI capabilities include root cause analysis, automatic issue detection, faster issue solving, and automatic PR generation. The Free Forever plan costs nothing and includes up to 100GB of data, 1k RUM sessions, 20k synthetic checks, 10 browser test runs, and 2 million OpsAI tokens, with 14-day retention and community support. Pay As You Go costs $0.30 a month, billed according to use, with default 30-day retention. Middleware lists 450+ integrations and a Public API. It runs on Android, iOS, Linux, macOS, web, Windows, and API. The company says it encrypts customer data in transit and at rest using TLS 1.2+ and AES-256.