What Testsigma is
Testsigma describes itself as an agentic test automation platform for QA teams. This is a comparison, not a Testsigma review: the facts below come from Testsigma's own pages and announcements, as of September 2026.
- Atto and its agents. Atto, which Testsigma calls an AI coworker, runs AI agents that plan tests from Jira sprints, generate and run them, analyse failures, heal broken tests and file bug reports. Atto 2.0 came out in November 2025.
- Tests in plain English. Tests are generated from user stories, designs, recordings or a prompt, or written as plain-English steps you can edit.
- From commit to release gate. On each commit, agents map the change to your stories and propose test plans for you to approve. Results come back as a coverage score, a confidence level and a release gate; Testsigma says you approve what ships.
- What it tests. Web, iOS and Android apps, APIs, Windows desktop, Salesforce and SAP, on a cloud of more than 3,000 real browsers and devices, triggered from CI tools such as Jenkins or GitHub Actions.
Testsigma was founded in 2019, is headquartered in San Francisco and announced an $8.2 million round led by MassMutual Ventures in June 2024. Its open-source code is still on GitHub under the Apache 2.0 licence, but the latest release there, v3.0.1, dates from August 2023.
Why teams look for a Testsigma alternative
The reasons are mostly about fit rather than faults in Testsigma.
- A suite that keeps growing. Accepted tests become automation scripts in your regression suite, which Testsigma says grows every sprint. Someone still reviews generated plans and proposed fixes, and decides what the suite should keep.
- A score or a record. The release gate combines pass rate, coverage and critical-path analysis into a confidence score. The people approving a release often also ask what was checked against which requirement, what needs a decision and what was not covered.
- Pricing by quote. Both plans on the pricing page say "Get Custom Pricing", and Testsigma asks about your expected usage before it quotes.
- Your product's own rules. Whether a release is right depends on your requirements, design system and business rules: a flow can pass every step and still show the wrong price.
In fairness, Testsigma already works from your sprint context, keeps a person in charge of what ships and puts evidence behind its release gate. The real question is whether you want an automation platform and a growing suite, or each release checked and signed off.
Testsigma vs ShipperAG at a glance
Testsigma builds, runs and heals an automated suite and scores your release; ShipperAG checks each release against your context and hands you evidence. Here is how they compare as of September 2026.
| Aspect | Testsigma | ShipperAG |
|---|---|---|
| Built for | QA teams automating web, mobile, API, desktop, Salesforce and SAP testing | Product and engineering teams that need evidence to approve each release |
| Approach | AI agents generate, run, heal and analyse tests, then score release confidence | AI QA specialists check each release against your requirements, design system and business rules |
| Who writes and maintains tests | Agents generate plain-English tests and plans; your team reviews them and keeps the suite | No suite to write: the coordinator picks the specialists each change needs, within your limits |
| How failures are handled | The Analyzer groups failures and flags false positives; the Healer repairs broken tests | An independent verifier re-runs every finding in a fresh session before it is reported |
| Evidence and sign-off | Coverage score, confidence level and release gate; logs, screenshots and videos | Verified, Issue found, Needs input and Not covered, sealed in a hash-chained ledger, plus a shareable report |
| Browsers and devices | 3,000+ real browsers and devices, including native iOS and Android apps | Real Chromium sessions, including phone and tablet sizes by emulation; Firefox, Safari and real devices not covered |
| Pricing model (as published) | Pro and Enterprise plans, both custom-priced; free trial | From $149 a month, after a free 45-day trial |
| Availability | Available now | Private pilot (waitlist) |
Want release evidence you can check alongside your Testsigma coverage? Start with a free 45-day trial, no card.
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Testsigma pricing, as published
Testsigma does not publish prices. As of September 2026, its pricing page lists two plans, and both say "Get Custom Pricing":
- Pro, for fast-growing teams: Testsigma Copilot, unlimited applications and automated testing minutes, parallel execution and auto-healing scripts.
- Enterprise, for high-scale teams: everything in Pro, plus accessibility testing, public, private or on-premises cloud deployment and SAML single sign-on.
Testsigma quotes from your expected usage, and its home page says paid plans scale with parallel runs and seats, after a free trial. If Testsigma pricing is your reason for looking at an alternative, ShipperAG starts at $149 a month for 20 release checks, after a free 45-day trial; it is in a private pilot.
Where ShipperAG is different
Testsigma turns your sprint context into automated tests and a confidence score. As a Testsigma alternative, ShipperAG treats that context as the standard each release is judged against, and ends with a recorded decision rather than a suite.
- No suite to grow. Connect a preview or staging URL and add your requirements, design system or brand tokens, business rules and API docs. The coordinator reads each change and picks the AI QA specialists it needs, within your limits, so there are no scripts to heal.
- Real checks decide. A real Chromium browser, HTTP and API calls, automated accessibility rules and visual comparison against design tokens. A language model's opinion alone can never mark anything verified.
- Every finding re-run. The independent verifier re-runs each finding in a fresh session before it reaches the report.
- Four states, in words. Verified, Issue found, Needs input and Not covered. Unclear or contradictory requirements come back as a question, not a guess.
- A record people can sign. Results are sealed in a hash-chained evidence ledger. A person on your team signs off, or shares a self-contained HTML report with the stakeholders who approve the release.
- Built for how you ship. ShipperAG is designed to run against preview and staging builds and inside CI pipelines.
When Testsigma is the better choice
Not every team needs a Testsigma alternative. Testsigma is the stronger choice when:
- You test more than the web. Native iOS and Android apps, Windows desktop software, Salesforce and SAP are all in Testsigma's scope. ShipperAG's workflow starts from a preview or staging URL.
- You need real browsers and devices. Testsigma runs tests on more than 3,000 of them. ShipperAG runs in Chromium only.
- Manual testers are moving to automation. Plain-English tests and generated plans let testers without coding skills build a regression suite.
- Your release meeting runs on a gate. If you want a coverage score and release gate tied to Jira and your commits, Testsigma is built around them.
- You need on-premises or hybrid deployment. Testsigma says it offers both, with SSO, audit trails and SOC 2 and GDPR compliance.
- You need to start now. Testsigma is available today with a free trial; ShipperAG is a private pilot.
The two can also sit side by side: a Testsigma suite for regression across platforms, and per-release checks for what changed against your requirements. We explain that blend in agentic QA vs test automation. If the SAP and Salesforce testing in Testsigma's scope is really the priority, rather than web test automation, our Tricentis Tosca alternative comparison covers a platform built deeper around those packaged apps.
What ShipperAG does not do
ShipperAG is new, and it is not right for every job:
- It is not generally available or self-serve. It is a private pilot with a waitlist: teams start with a free 45-day trial with up to 20 release checks, and paid plans start at $149 a month.
- It checks in real Chromium browser sessions only, including phone and tablet sizes by emulation. Firefox and Safari (WebKit) rendering and real devices are not covered, and reports list them under Not covered. Our guide to AI browser testing explains why the browser engine matters.
- It does not replace a maintained regression suite on a long-lived product. It is designed to run alongside one.
- It only tests targets you own or have written permission to test, and it stays inside the hosts you allow.
Other Testsigma alternatives and competitors
ShipperAG is not the only Testsigma alternative. If you are comparing testRigor vs Testsigma, or Katalon vs Testsigma, these pages go further:
- testRigor is a generative AI-based test automation tool: you write tests in plain English, and it runs them across web, mobile, desktop and APIs. See our testRigor alternative comparison.
- Katalon sells the Katalon True Platform: test authoring, test management and a real browser and device cloud, at published prices. See our Katalon alternative comparison.
- Virtuoso QA is an enterprise test automation platform with plain-English, self-healing tests. See our Virtuoso QA alternative comparison.
For the wider field, browse all alternatives and comparisons.
Sources: Playwright, playwright.dev (checked 26 September 2026); Testsigma home page (re-read 26 September 2026), pricing and AI agents; PR Newswire, Testsigma Releases Atto 2.0 (20 November 2025) and Testsigma raises $8.2M led by MassMutual Ventures (5 June 2024); GitHub, testsigmahq/testsigma repository and releases; testRigor home page; Katalon home page; Virtuoso QA home page. Competitor details change, so check their websites for the latest. Checked 20 September 2026.