Tessary vs Testifly
Tessary and Testifly are both uptime & monitoring tools aimed at developers and small businesses. Only Tessary has a free plan.
Open-source monitoring that finds why production AI agents fail
Autonomous AI QA that builds and heals web app tests from a URL
| Pricing | Open source | Paid · $29 |
| Starting price | Not published | $29/mo |
| Free plan | Yes | No |
| Free trial | — | 30 days |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses, Agencies |
| Platforms | web, linux | web |
| Country | — | IL |
| Rating | — | — |
Choose Tessary if
Engineering teams running AI agents in production with OpenTelemetry traces who want every trace checked and failures explained.
- Apache 2.0 open source with free self-hosting
- Checks every trace instead of a sampled subset
- RCA links failures to specific commits when a repo is connected
Look elsewhere if: Teams that want a mature, fully supported observability suite or an eval-first workflow (Datadog, Braintrust).
Choose Testifly if
Small software teams without a dedicated QA engineer who want end-to-end web coverage without writing or maintaining test scripts.
- No test scripts or selectors to write or maintain
- Unlimited users on every plan, so the whole team can see results
- Runs in the cloud, or on-prem behind a firewall from Growth up
Look elsewhere if: Teams that test native mobile apps or want full code-level control over their test suite (Playwright, Checkly).
Tessary vs Testifly pricing
Tessary
- Open Source$0Self-host with Docker Compose; all core features
- Cloud Free$010k traces/mo, 1 GB, 30-day retention, $10 one-time RCA credit
- PaidCustomCustom classifiers, managed dedicated instance, Slack support
Testifly
- Starter$29/mo50 tests, 5,000 runs/mo, unlimited users; 20% off yearly
- Growth$89/mo225 tests, 50,000 runs, blast radius, integrations, on-prem
- Business$249/mo750 tests, 200,000 runs, 2 projects, unlimited environments
- EnterpriseCustomCustom limits, dedicated support, custom contract terms
Tessary · Key features
- Classifiers run on every production trace with no sampling
- Built-in checks for drift, tool errors, secret leaks and malformed output
- LLM triage groups real deviations into trackable cases
- Root-cause analysis over failing traces and your GitHub repository
- OTLP ingestion over HTTP and gRPC with OpenTelemetry gen_ai conventions
- PII redaction before traces are stored
Cons
- Very new project with a short track record
- Paid plan prices are not published
- Frustration classifier requires your own OpenRouter or TypeSafe key
Testifly · Key features
- Autonomous flow discovery that maps pages and features from a URL
- Zero-authoring end-to-end test generation from the discovered flows
- Login handling for password, social, magic link or custom flows
- Self-healing selectors and test updates when feature behavior changes
- Root-cause analysis with session video replay for failed tests
- CI/CD gate, staging and production runs, and scheduled monitoring
Cons
- Web applications only, with no native mobile app testing
- Jira, Linear, Notion, Slack sync and blast radius need Growth or higher
- Starter and Growth cover a single project
Tessary vs Testifly: FAQ
Do Tessary and Testifly have a free plan?
Tessary has a free plan. Testifly has no free plan, a 30-day free trial.