Mobile QA for teams shipping real products on real devices.
Mantis helps startup teams validate mobile product quality across real iOS and Android devices — catching bugs, UX friction, broken states, and edge cases before they reach users.
- iPhone 15 ProiOS 18.1Live
- iPhone 14iOS 17.5Stable
- iPad mini (6th)iPadOS 17.5Stable
- iPhone SE (3rd)iOS 17.4Legacy
- Pixel 8 ProAndroid 14Live
- Galaxy S24Android 14Stable
- Galaxy A54Android 13Live
- Pixel 6aAndroid 12Legacy
Why mobile QA needs more than basic testing.
Mobile products fail in ways desktop teams often underestimate — across device models, operating systems, gestures, notifications, connection states, and trust-sensitive user moments.
Device & OS fragmentation
Real users run different iPhones, Pixels, Galaxies, and a dozen old Androids you forgot about. Coverage on a single emulator misses the issues your customer base actually hits.
Gesture-driven UX behavior
Swipes, long-presses, multi-touch, pull-to-refresh, in-app navigation patterns — mobile UX behaves differently under fingers than it does in a clicked-through web flow.
Trust-sensitive mobile moments
Payments, sign-in, biometrics, permissions. The moments where a user decides whether to keep going or close the app — and where small UX issues cost retention.
Broken states emulators don't show
Push notifications, network drops, low-battery, sensor permissions, audio focus. Real-world conditions that only surface on real hardware in real environments.
Real-device testing that reflects how users actually experience the product.
Emulators are useful. They're not enough. What follows is what only real hardware reveals — and where ours focuses.
- NO. 01
iPhone & iPad coverage
Active hardware across every shipping iOS version. Test runs happen on physical devices — not on a Mac somewhere pretending to be one.
- NO. 02
Android variety, not a clean lab
Real handsets across manufacturers, OS versions, and screen sizes — the actual Android distribution your users have, not a single reference build.
- NO. 03
OS / version differences
OS upgrades, downgrades, and edge cases that quietly break apps. We catch the version-specific issues before your users do.
- NO. 04
Real-environment behavior
Hardware buttons, biometrics, notifications, network drops, low-battery, audio focus, permission dialogs — the conditions an emulator can only fake.
What we validate on mobile.
Product-focused coverage of the flows that matter — across the devices, OS versions, and network conditions your users actually live in.
Onboarding & sign-up flows
The first moments that decide whether a user stays. We test every drop-off point across devices and OS versions.
Navigation & gestures
Tab bars, drawers, swipes, back behaviors, deep links — the patterns that should feel native and never trap the user.
Account & settings flows
Profile changes, plan management, role updates, deletion paths. Quiet flows that quietly break between releases.
Payments & trust paths
Apple Pay, Google Pay, card entry, 3DS, subscription changes. Where small bugs become refund tickets fast.
Notifications & recovery
Push delivery, deep-link landing, permission states, app-resume scenarios, and the recovery flows users hit when something goes wrong.
Device-specific UI & behavior
Notch and dynamic-island layouts, foldables, smaller Androids, iPad multitasking. The places generic responsive testing misses.
Offline & weak connection
Subway-network behavior, retry flows, queueing, conflict resolution. Mobile is not always online — your QA shouldn't pretend otherwise.
What tends to break on mobile.
A grounded list of the issues mobile teams keep running into — and the kinds of things Mantis is good at catching.
- 01Device-specific layout and rendering bugs nobody saw in design
- 02Inconsistent behavior across OS versions and minor point releases
- 03Gesture and navigation friction that's invisible until a real user thumb hits it
- 04Weak error states and recovery paths after network drops or permission denials
- 05Broken notification delivery, deep-link routing, or background-launch behavior
- 06Trust-damaging UX in payment, biometric, or account-deletion flows
- 07Issues that only appear on real hardware — never on the laptop screen
How we approach mobile QA.
Calm, structured, product-aware.
Understand the product
We identify the mobile flows that matter most to user trust and release quality — and the devices your users actually run.
Test on real devices
We validate critical journeys across the iOS and Android hardware and OS combinations that reflect your audience.
Document meaningful issues
Functional bugs, UX friction, and risky edge cases — surfaced with severity, reproduction, and supporting evidence.
Support release confidence
We help teams understand what needs fixing, what needs retesting, and where the residual risk still lives.
Best for teams where mobile quality really matters.
Live iOS & Android products
Startups with shipped apps and active users who can't afford regressions to slip through.
Launches & major updates
Teams preparing for store releases, redesigns, or platform-version cutovers where stakes are high.
Trust-sensitive user journeys
Products where payments, identity, biometrics, or account changes can't afford a single broken screen.
Limited internal mobile QA
Teams without dedicated mobile testers — or with one stretched too thin across platforms.
Mobile UX drives retention
Companies where the mobile experience directly affects retention, conversion, or revenue.
What teams get from better mobile QA.
The result isn't a longer test plan. It's a calmer mobile release cycle and fewer surprises after store rollout.
Stronger release confidence
Teams stop holding their breath on store rollouts and start shipping mobile updates on a steady cadence.
Fewer device-specific surprises
Issues that used to show up in reviews ("crashes on my Pixel 6a") get caught before submission.
Trust in core mobile flows
Payments, auth, onboarding, and account paths get the attention they need — every release, every platform.
Less founder & eng guesswork
Clear visibility into real-world issues, not vague "it works on my phone" engineering takes.
Mobile QA works best inside a stronger release process.
For most startups, mobile testing is most effective when it's part of broader ongoing QA support — release validation, regression discipline, and continuous quality ownership across platforms.
Find out where mobile risk actually lives.
Rapid Health Check uncovers meaningful bugs, UX friction, and testing gaps across your product — including mobile flows — before you commit to a longer engagement.
Need stronger confidence before your next mobile release?
Mantis helps startup teams validate mobile quality on real devices and catch the issues that matter before users do.