CANADA · USA · 15+ YEARS · NATIVE, CUSTOM & CROSS-PLATFORM
Mobile App Development Company in Canada
From Montreal, we design, build and maintain custom mobile apps and software for startups, SMEs, enterprises and research teams across Canada and the US.
4.9/5 on Clutch · Top app development company, Canada 2026
Trusted by market leaders across North America
15+
years of expertise
120,000+
hours of development
30+
technologies
Mobile App Development Experts
You wouldn’t call a plumber to fix your electrical panel. So why trust a marketing agency or a generalist web shop with your mobile app?
Focused Mobile Development
Mobile apps are the core of what we do, so we anticipate challenges before they arise.
Technical, Design & Product Expertise
Engineering, design and product thinking in one team, for iOS, Android and the web.
Reliable Delivery
Clear strategy and execution, on time, on budget and fitted to your project goals.
Custom Software and App Development Services
Mobile is our core. Around it, the same senior team builds the web apps, backends and custom software your product needs, for companies across Canada and the US.
Mobile App Development
Native iOS and Android apps, or cross-platform with React Native and Flutter.
Web Application Development
Responsive web apps, portals and dashboards that complement your mobile product.
Custom Software Development
Tailored software and internal tools built around your processes and systems.
UX/UI Design for App Development
User-centered design that makes apps intuitive and boosts adoption and retention.
Backend & API Development
Secure backends, APIs and integrations with your cloud and legacy systems.
Enterprise Workflow Apps
Mobile apps that automate business processes and improve team productivity.
SPECIALIZED CAPABILITIES
MORE SERVICES
Not sure which service fits? Talk to our experts.
Apps We've Built
Real products for real constraints: existing infrastructure, hardware, regulated data.
EV CHARGING · IOT
CleverCharge EV Charging
The results
100% of beta respondents rated the new app easy to use
100% of delivered screens matched the UX/UI wireframes
The challenge
A robust EV charger held back by a companion app users found hard to use, with a setup sequence that could not change.
Our solution
A full UX/UI redesign that simplifies every setup step, without touching the hardware or backend.
MUSIC · IOT · ENTERPRISE
TouchTunes Mobile App
The results
99.9975% session stability rate, one of the most stable apps on the market
Millions of users on the rebuilt platform
The challenge
Rebuild a high-traffic jukebox app used in thousands of venues, with dozens of developers working on the same codebase.
Our solution
Senior consultants who co-designed the architecture, selected third-party tools and built native features within multiple squads.
MANUFACTURING · IOT · BLUETOOTH MESH
ABB Bluetooth Mesh Device Manager
The results
100% of field teams adopted the app across all deployed regions
100% of devices provisioned and configured through Bluetooth Mesh
The challenge
Turn a highly technical protocol into one tool for installers and building managers, across countries and regulations.
Our solution
A mobile, tablet and web app that provisions, tests and monitors emergency lighting, with automated alerts and compliance reports.
MEDTECH · 3D SCANNING
HP Arize 3D Orthotics Scanning
The results
Minutes per scan session, instead of a long manual process
Lab-level precision from an iPad, without extra equipment
The challenge
Bring lab-grade 3D foot scanning to everyday clinics, without losing medical precision or slowing down clinicians.
Our solution
A native iPad app pairing Occipital’s Structure Sensor with Apple’s TrueDepth camera, from scan to order tracking.
LOGISTICS · ENTERPRISE
Intelcom Returns App
The results
2 months from kickoff to a working proof of concept
1 scan to confirm a return in two enterprise systems
The challenge
Make a single scan at a convenience store counter confirmed by two companies’ systems, used by staff with no training.
Our solution
A native iPad app connecting the retailer’s and Intelcom’s APIs, so store staff confirm a return in one scan.
“Our strength lies in focus. We know apps inside and out. The small details that make an app great, we catch them.”
Gregory Cerallo, Co-founder
CLIENT REVIEWS
What Our Clients Say
Long-term partners, from HP in California to Transdev in Quebec, rate us on independent platforms.
“Sidekick’s team is great at UI/UX design. They go outside the box, follow Agile, and became part of our team, not just a provider.”
Deborah Beebe, Director · HP, United States
“Sidekick’s experts guided our digital strategy. The co-creation workshop helped all stakeholders collaborate and push the project further.”
Sébastien Boudrias, IT Director · Transdev, Canada
How We Work
Every project is custom: some take a few weeks, others become multi-year partnerships.
What stays the same is how we work, and you approve every milestone.
01
Assessment
Discovery & Review
We look at your idea, product and existing technology to understand what needs to be done.
02
Roadmap
Strategy & Planning
We define the goals, main features and timeline for your project.
03
Prototype
UX/UI Design
We create a simple, easy-to-use design your users will enjoy.
04
Working app
Agile Development
We develop your app for iOS, Android or both, and connect it to your systems.
05
Tested build
Testing & QA
We test the app carefully to make sure it works well and runs smoothly.
06
Live app
Launch & Improve
We publish your app on the stores and keep improving it over time.
Who We Work With
From startups to enterprises, across regulated, connected and field-based industries.
By Company Type
By Industry
IoT
Companion apps that pair seamlessly with your connected hardware.
Clients: ABB, Aerial
Manufacturing
Connected product apps, shop floor workflows and real-time data.
Clients: HP, ABB, Parker Hannifin
MedTech
Secure, compliant apps for patients, clinicians and medical devices.
Clients: HP, Memorial University
EV Charging
Apps for EV charging networks and charger manufacturers.
Clients: FLO, CleverCharge
Mental Health
Evidence-based therapy and research apps that patients actually use.
Clients: Université de Montréal
Orthotics & Prosthetics
3D scanning, clinical workflow and order management apps.
Clients: HP, iBrace
Mapping & GIS
Map-driven city apps and offline field tools with real-time data.
Clients: Montreal, Terrebonne, JMap
Aerospace
Offline field apps that replace paper inspections and maintenance logs.
Clients: Air Inuit
Music
High-performance music apps built for millions of users.
Clients: TouchTunes
Construction
Safety, progress and field data apps for job-site crews.
Clients: REM (Montréal light rail)
SaaS
Mobile apps that extend your cloud platform and boost retention.
Clients: Exercise.com, CareSimple
Technologies We Work With
We choose the stack that fits your product and the systems you already have.
Swift
SwiftUI
UIKit
visionOS
Kotlin
Jetpack Compose
Material 3
Hilt
React Native
Flutter
Kotlin Multiplatform
Angular
React
TypeScript
RxJS
.NET 8
ASP.NET Core
Entity Framework Core
SignalR
REST & OpenAPI
OpenID Connect
Microsoft Azure
Firebase
SQL Server
SQLite
Google Maps SDK
GitHub Actions
Azure DevOps
Fastlane
Bitrise
TestFlight
Frequently Asked Questions
Straight answers to what clients ask us before starting a project.
Why choose Sidekick Interactive as your mobile app development company in Canada?
Since 2011, our Montreal team has focused on one thing: building mobile apps and the software behind them. We are rated 4.9/5 on Clutch and work with organizations such as HP, ABB, Intelcom, TouchTunes and FLO, from startups to large enterprises across Canada and the US.
Every project is led by senior developers who work with you directly, in your time zone, with clear milestones and transparent reporting. For US companies, we are a nearshore partner with the same business culture and a favorable exchange rate.
How much does a mobile app cost?
Mobile app development costs can vary significantly based on the scope, complexity, and objectives of your project. A basic MVP (Minimum Viable Product) can typically be built within a $20,000 to $30,000 CAD range, making it an effective way to validate an idea with essential features.
For a fully developed, production-ready mobile application, budgets usually start around $50,000 to $100,000+ CAD per platform. Costs increase when integrating advanced functionalities such as payment processing, real-time data synchronization, third-party APIs, or custom backend systems.
The overall investment ultimately depends on the level of quality, development speed, and functional depth required to achieve your business goals.
How long does it take to build a mobile application?
On average, most mobile projects take between 3 and 6 months. Every project follows the same six steps:
- Discovery & Review
- Strategy & Planning
- UX/UI Design
- Agile Development
- Testing & QA
- Launch & Improve
Simple prototype applications can sometimes be delivered faster, while complex platforms may require longer development cycles.
Should my app be native or cross-platform?
It depends on your product. For apps with heavy Bluetooth, hardware or real-time requirements, we usually recommend native development (Swift for iOS, Kotlin for Android). For cloud-connected apps with simpler needs, cross-platform with React Native or Flutter can reduce cost and time to market. We recommend the right approach during discovery.
Can you take over or modernize an existing app?
Yes. We audit and modernize existing apps, upgrade outdated frameworks, and bring them back in line with current iOS, Android and store requirements. We also turn AI-generated prototypes into production-ready apps, handle AI code migration, and provide ongoing maintenance after launch.
What platforms and technologies do you work with?
Sidekick Interactive supports projects across a wide range of technologies, including native iOS development (Swift), Android development (Kotlin), and cross-platform solutions such as React Native and Flutter.
We also provide expertise in backend development, API architecture, and web applications, ensuring a robust, scalable, and fully connected digital ecosystem.
How do we stay informed during the project?
Through regular touchpoints, agile reporting, and transparent communication, we keep clients informed about every milestone and decision.
What industries do you serve?
We build apps for IoT and connected devices, manufacturing, MedTech, EV charging, mental health, orthotics and prosthetics, mapping and GIS, aerospace, music, construction and SaaS, with a focus on secure, reliable and well-integrated solutions.
Do you work with startups, SMEs and enterprises?
Yes. Startups come to us for MVP strategy and a codebase that can scale after funding. SMEs rely on us to digitize operations with a clear budget. Enterprises trust us with secure, native apps that integrate with their systems and meet strict IT and data governance standards.
Tell Us About Your Project
Free, no-commitment consultation
Answer from our team within 24 h
NDA on request
Prefer to talk? Book a 15-Minute Call with our experts.