Northvault
A mobile-first banking app with instant transfers, budgeting insights and biometric security for 400k+ customers.
4.8★App Store
412kActive users
+63%Retention
NEW AI-powered app experiences, now in every build
We craft mobile apps that people can’t put down.
Eternite Tech is a mobile product studio in Mississauga. We design, build and scale iOS, Android and cross-platform apps for startups and enterprises that care about quality.
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★★★★★ 4.9/5 from 80+ clientsRated on Clutch & Google
Trusted by ambitious teams across North America
NorthvaultPulsefitDishlyCarelyWandrLingo LoopMaplestackOrbitlyNorthvaultPulsefitDishlyCarelyWandrLingo LoopMaplestackOrbitly
120+
Apps launched
18M
Downloads worldwide
4.9
Average store rating
97%
Clients who return
What we do
All services
End-to-end mobile product development
From the first sketch to millions of users. One team covering strategy, design, engineering and growth.
iOS App Development
Native Swift & SwiftUI apps engineered for performance, privacy and the polish Apple users expect.
Learn moreAndroid App Development
Kotlin and Jetpack Compose apps that run beautifully across thousands of Android devices.
Learn moreCross-Platform Apps
One codebase, two stores. Flutter and React Native apps that feel truly native on both platforms.
Learn moreUI/UX Design
Research-driven product design, prototypes and design systems that turn users into fans.
Learn moreBackend & Cloud
Secure, scalable APIs and infrastructure built to handle launch day and millions of users after.
Learn moreAI & Smart Features
LLM assistants, computer vision, personalization and on-device ML that make your app genuinely smarter.
Learn more
Why Eternite
Built to last. Designed to delight.
“Eternité” means eternity. We build apps with clean architecture, rigorous testing and thoughtful design so they keep performing long after launch day.
- Senior-only team. Every engineer and designer has 5+ years shipping production apps.
- Fixed-scope pricing. Transparent estimates, weekly demos and no surprise invoices.
- Performance obsessed. Sub-second launch times and a 99.9% crash-free target.
- You own everything. Full IP and source code transfer, NDA from day one.
// Eternite quality gate struct ReleaseCheck { let crashFree = 99.92 let coldStart = "0.8s" let a11yScore = 100 let testCoverage = 87 func ship() -> Launch { return .appStore(rating: 4.9) } }
Crash-free sessions99.92%▲ 2.1% vs. industry
Avg. time to launch12 weeks▲ 30% faster
Selected work
View all apps
Apps we’re proud of
A few of the products we’ve designed and engineered with our partners.
Pulsefit
Personalized training plans, wearable sync and AI coaching that adapts every workout to the user’s recovery.
1.2MDownloads
4.9★Google Play
38 minAvg. session
Dishly
Food delivery with real-time courier tracking, one-tap reorders and a restaurant partner dashboard.
2.4xOrder volume
−41%Checkout time
320+Restaurants
Carely
HIPAA- and PIPEDA-aware telehealth app connecting patients to clinicians with video visits and e-prescriptions.
90kConsultations
4.8★App Store
<2 minWait time
How we work
From idea to App Store in four clear steps
Discover
Workshops, user research and technical audit to define goals, scope and success metrics.
1–2 weeksDesign
Wireframes, interactive prototypes and a polished design system, tested with real users.
2–4 weeksBuild
Agile two-week sprints with demo builds on your phone and full transparency on progress.
8–16 weeksLaunch & grow
App Store & Play Store release, analytics, ASO and continuous improvement.
Ongoing
Client stories
Trusted by founders and product leaders
★★★★★
“Eternite Tech rebuilt our app from the ground up in 14 weeks. Crash rate went to near zero and our App Store rating climbed from 3.6 to 4.8. They behave like a product team, not a vendor.”
Sophie ReynoldsVP Product, Northvault
★★★★★
“Their design team understood our users better than we did. The onboarding redesign alone lifted activation by 34%. Communication was clear and weekly demos kept everyone aligned.”
Daniel MensahFounder & CEO, Pulsefit
★★★★★
“We needed a partner who could handle compliance, scale and a tight launch date. Eternite delivered on all three and still supports us a year later. I recommend them without hesitation.”
Amira LalondeCTO, Carely Health
Technology
A modern, proven stack
We choose tools for longevity and performance, never for hype.
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KotlinFl
FlutterRe
React NativeFi
FirebaseNo
Node.jsAW
AWSGr
GraphQLFi
FigmaOp
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Supabase
FAQ
Questions, answered
Everything you need to know before starting your app project.
How much does it cost to build a mobile app?
Most projects we deliver range from $25k for a focused MVP to $150k+ for complex, multi-platform products. After a free discovery call we send a detailed, fixed-scope estimate so there are no surprises.
How long does it take?
A well-scoped MVP typically takes 10–14 weeks from kickoff to App Store launch. Larger products are delivered in phases so you can release early and learn from real users.
Native or cross-platform: which should I choose?
It depends on your product. Native (Swift/Kotlin) wins for performance-heavy or hardware-intensive apps; Flutter or React Native is ideal for shipping to both platforms faster with one codebase. We’ll recommend the right fit honestly.
Who owns the code and designs?
You do. 100% of the intellectual property, source code and design files are transferred to you. We’re happy to sign an NDA before we even start talking.
Do you support the app after launch?
Yes. We offer flexible maintenance and growth plans covering OS updates, monitoring, bug fixes, new features, analytics and App Store optimization.
Can you work with our existing team or codebase?
Absolutely. We regularly audit, rescue and extend existing apps, and can embed our engineers alongside your in-house team.
Let’s talk
Have an app idea? Let’s make it real.
Tell us what you’re building. You’ll get a clear plan, timeline and estimate within 48 hours, free.