Deltix Review 2026: AI-Driven Mobile App Testing That Runs Like a Real User
Deltix lets you describe a task in plain English and an AI agent runs it on an iOS Simulator on your Mac to verify a real user could complete it. We review the Task, Playbook, and Experiment modes.
Most mobile testing tools make you write assertions. Deltix asks you to describe the user’s goal instead.
What is Deltix?
Deltix is an AI-driven mobile app testing service. You write a task in plain English — “sign up and send your first message” — and a local agent runs it on an iOS Simulator on your Mac, acting on what it sees like any user would, then reports where it got stuck. Your source and build never leave your machine; screenshots and a run record sit in your account for review and replay.
Key features
- Plain-English task to AI agent executes it on a local iOS Simulator (source/build never leave your Mac)
- Three modes: Task (try once), Playbook (save & replay deterministically on every build), Experiment (compare two builds)
- Captures step-by-step screenshots and a run record you can review, replay, or delete
- Bring-your-own model key to route inference off Deltix’s bill; privacy-by-default local execution
- Roadmap: physical devices, Android, CLI for CI (GitHub Actions/GitLab/CircleCI), React Native/Flutter
Who should use it?
iOS product and QA teams who want exploratory, user-realistic testing without maintaining flaky XCUITest assertions, plus deterministic regression via saved Playbooks. It’s especially handy for design-vs-design “which flow wins” experiments before A/B testing in production.
Pros and cons
Pros: no test-code maintenance; local/private execution; replayable regression; compare builds side by side.
Cons: iOS Simulator only today (physical devices/Android on the roadmap); run records/screenshots live in a cloud account (deletable); open beta means post-beta pricing and CI availability aren’t committed.
Pricing
Free during open beta — no credit card, no invite. You can bring your own model key or use theirs.
FAQ
Does Deltix see my source code? No — the agent runs locally against your simulator; source, build, and signing identities stay on your Mac.
What’s a Playbook? A saved successful run you can replay deterministically against any new build for pass/fail regression.
Is Android supported? Not yet — Android emulators and physical devices are on the roadmap.
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