Top Mobile App Development Companies in Montreal (2026)

Montreal is one of the busiest cities in Canada for mobile app development. Native iOS and Android studios, product consultancies, and AI firms all build apps here, often for the same kinds of buyers. That makes shortlisting harder, not easier: most agency sites say the same things. This guide compares seven mobile app development companies with headquarters or a real office in Montreal, using facts you can check on each firm's own site and its Clutch profile, so you can build a shortlist on evidence rather than slogans.

Use the comparison table to narrow the field, read the notes on each firm, then use the buyer guide to test the fit. If you are open to firms elsewhere in the country, see our list of mobile app development companies in Canada, and for a wider view, our list of top app development companies.

How to choose a mobile app development company in Montreal

Start with the app you need, not the agency. A few questions remove most of the noise:

• Native or cross platform. Some studios build in Swift and Kotlin by default. Others lead with React Native or Flutter so one codebase ships to both stores. Ask which they recommend for your app and why, and what happens when a feature needs native code.
• App only or full product. A business app usually needs a backend, an admin panel, integrations with your existing systems, and someone to run it after launch. Confirm whether the firm builds and supports all of that or only the client app.
• French and English. An app for Québec users needs a proper French interface and store listing. A team that works in French writes better interface copy than a translation pass at the end.
• Size of the engagement. Minimum project sizes on Clutch range from small to six figures, so check the floor before you spend time on a sales call.
• Verifiable proof. Third party review profiles, case studies, and certifications you can verify beat award logos. We link those below so you can check them yourself.

For budgeting, our guide to app development cost in 2026 breaks down what drives the price of an app.

Mobile app development companies in Montreal compared

The companies, in detail

1. Webisoft

Webisoft is a Montreal software development firm, in business since 2016, with a second office in Miami (source). For mobile work it builds iOS and Android apps, usually with React Native so one codebase ships to both the App Store and Google Play, and it writes native code where a feature needs it (source). It builds the app together with the backend, APIs, and admin tools it runs on, and the client owns the code and the store accounts (source). Published, anonymized work includes a vehicle auction platform for a Canadian automotive group with live bidding and a React Native app so buyers can bid from anywhere, built and run by the same team since 2018 (source). Webisoft is AICPA SOC 2 Type II certified and HIPAA compliant, an AWS Partner, and works in English and French (source). On Clutch it holds a 4.9 rating across 23 reviews (source). We rank ourselves first because we know our own record best, not because of any third party score. Webisoft tends to fit businesses that need a full business app, including the backend, integrations, and security controls, built by senior engineers in the Eastern time zone. Related services include MVP development and SaaS development.

2. Guaraná Technologies

Guaraná Technologies was established in 2011 and has offices in Montreal and Toronto (source). The firm says it specializes in native iOS and Android applications and also works with Swift, Kotlin, React Native, IoT, beacons, Apple Pay, and Apple Watch (source). It reports more than 274 mobile apps built, with more than 187 million users combined (source). Its Clutch profile lists Toronto as headquarters, a 4.8 rating across 16 reviews, a minimum project size of $10,000+, and mobile app development as 50% of its service focus (source). Guaraná tends to fit businesses that want a focused native mobile specialist and a lower entry point than most firms on this list.

3. Mirego

Mirego describes itself as a multidisciplinary development, strategy, and design team with offices in Quebec City and Montreal (source). It reports 18 years of experience, more than 300 digital products launched, more than 40 prizes and awards, and more than 14 million users of its products (source). Its work spans phones, web browsers, tablets, connected watches, TVs, kiosks, and voice assistants, and it runs an AI practice covering platform, training, development, diagnostics, and machine learning (source). In June 2026 it announced Forra, an enterprise AI platform (source). Its Clutch profile gives 2007 as its founding year, Montreal as headquarters, a team of more than 150, and mobile app development as 40% of its service focus; the profile showed no reviews when we checked (source). Mirego tends to fit Québec brands building a consumer product that has to work across many devices, with heavy design requirements.

4. nventive (now part of Wepoint)

nventive is a Montreal firm founded in 2008 that now operates as part of Wepoint, the North American entity of the Onepoint group (source). Its site states that projects and requests are now carried forward by Wepoint (source). Its expertise covers solution development, user experience and design, applied artificial intelligence, support and evolution, technology modernization, and system integration (source). Featured case studies on its site are mostly mobile development, including a connected public transit app (source). On Clutch it holds a 4.8 rating across 16 reviews, lists 250 to 999 employees and a minimum project size of $100,000+, and puts mobile app development at 40% of its service focus (source). Because of the merger, confirm which entity signs the contract and which team delivers. nventive tends to fit larger organizations that want a sizable local team to build or modernize a customer facing app.

5. Osedea

Osedea describes itself as a Canada based innovation firm specializing in AI and custom software development, with services in digital product design, software development, artificial intelligence, robotics, and data and business intelligence (source). It lists manufacturing, health, mining, finance, and agri food among its industries, states that it is a SOC 2 Type 2 certified organization, and its project list includes a React Native IoT app (source). Its Clutch profile places it in Montreal, founded in 2011, with a 4.9 rating across 44 reviews; AI development is the largest share of its service focus at 35% (source). Osedea is less a pure mobile studio than the others here. It tends to fit industrial and data heavy businesses whose app is one part of a larger AI, robotics, or analytics system.

6. Sidekick Interactive

Sidekick Interactive says its Montreal team builds custom software, web apps, and iOS and Android apps for startups, SMEs, and enterprises (source). Its services include mobile app development, web apps, UX/UI design, custom workflow apps, backend and API development, and maintenance, and it also offers vibe coded app rescue and AI code migration (source). It works with React Native, Flutter, native iOS and Android, and areas such as AR and VR, 3D scanning, and EV charging (source). Its Clutch profile lists a founding year of 2011, a 4.9 rating across 30 reviews, a minimum project size of $25,000+, and mobile app development as 40% of its service focus (source). Sidekick tends to fit businesses with hardware connected apps, or an existing app that needs rescue or modernization.

7. Spiria

Spiria was founded in Canada in 2003 and brings together bilingual experts in Montreal, Gatineau, and Toronto (source). It reports more than 150 digital experts, more than 600 clients, and more than 2,000 projects, and says it is SOC 2 Type 2 certified (source). It delivers web, mobile, and cross platform applications on AWS, Azure, and Google Cloud, and cites mobile expertise in defence work such as an emergency alert app that works offline (source). On Clutch it holds a 4.9 rating across 27 reviews, with custom software development at 40% of its focus and a minimum project size of $50,000+ (source). Mobile is one capability within a broad custom software practice rather than the whole business. Spiria tends to fit established organizations in insurance, finance, defence, or manufacturing that need a mission critical app built by a long running, bilingual partner.

Business apps versus consumer apps

Most searches for a Montreal app developer come from a business that needs an app, not a games studio, and that changes what you should look for. A consumer app lives or dies on store ratings, onboarding, and retention, so design polish and platform craft matter most. A business app, such as a field service tool, a client portal, an approvals app, or a B2B ordering app, lives or dies on integrations, permissions, offline behavior, and the data it moves. For those, ask each firm:

• Which systems will the app connect to, such as your ERP, CRM, identity provider, or payment processor, and who builds and maintains those integrations.
• How access control works, including roles, single sign on, audit trails, and device management for company issued phones.
• What happens offline, since field teams often work without a signal and need sync that does not lose data.
• How the app is distributed: public store, private enterprise distribution, or a managed app store through your device management tool.
• Who runs it after launch, including operating system updates, store policy changes, crash monitoring, and backend hosting.

Firms that build only the client app can still be a good choice, but you then need a separate team for the backend and integrations. Firms that build the full product reduce handoffs, which matters most when the app is a front end to systems your business already runs on.

Why a Montreal team helps for Québec apps

For Québec businesses, a local team offers practical advantages beyond the time zone. The app and its store listing need a natural French experience, and most firms in this list work in both languages: Spiria describes bilingual teams (source), and Webisoft works in English and French (source). Québec organizations that handle personal information also need a vendor that can explain how the app collects, stores, and protects that data, and that conversation is easier in person and in your own language. Three firms in this list publish SOC 2 Type 2 or Type II status: Osedea (source), Spiria (source), and Webisoft (source). If bilingual delivery is a hard requirement, see our page on bilingual software development.

Engagement models and cost

Most Montreal mobile firms sell one of three relationships. In a full delivery model, the firm owns design, engineering, testing, and store release, which suits companies without an internal mobile team. In a fixed scope first release, you agree on a defined version one and a price up front, which works when requirements are stable. In team extension, you add mobile engineers to your own team and keep product management in house; Spiria, for example, lists IT staff augmentation as 10% of its Clutch service focus (source).

Entry points vary widely. On Clutch, Guaraná lists a minimum project size of $10,000+ (source), Sidekick $25,000+ (source), Osedea $50,000+ (source), and nventive $100,000+ (source). Cost still depends more on platforms, the number of screens and roles, the backend, integrations, and compliance than on the agency's logo. We keep a sourced breakdown in our guide to app development cost in 2026, and current rate data in our report on software developer rates in 2026. Whatever the quote, ask what is included after launch, because maintenance, operating system updates, and hosting are where budgets most often surprise buyers.

A short buyer guide

Once you have a shortlist of two or three firms, run the same checks on each:

• Ask for case studies close to your app, in your industry and at your scale, and ask to speak with one of those clients.
• Read the reviews yourself. Open each firm's Clutch profile and read the detailed reviews, not just the star rating.
• Confirm code and account ownership. You should own the source code, the app store developer accounts, and the cloud accounts the backend runs on.
• Meet the people who will build it. Ask who the lead engineer and designer are, and whether they work in Montreal or elsewhere.
• Start small. A paid discovery phase or an MVP with a clear scope tells you more about a partner than any proposal.

If your project goes beyond mobile, our lists of web development companies in Montreal, SaaS development companies in Montreal, and top IT companies in Montreal cover the wider local market.

Methodology note

We built this list from publicly verifiable information: each firm's own website and its Clutch profile. Every factual claim above links to its source. We started from the firms that AI assistants and directories already name for mobile app development in Montreal, then kept only firms whose Montreal headquarters or Montreal office we could confirm. Guaraná Technologies lists Toronto as its Clutch headquarters and appears here for its Montreal office. Ratings, review counts, and minimum project sizes are as shown on Clutch when we checked in October 2026 and change over time. We did not invent ratings, scores, or superlatives, and where a fact was not public we left it out. Confirm current details with any vendor before you sign.

The right mobile app development company in Montreal for your business is the one whose strengths match your app: native craft for a consumer product, hardware depth for a connected device, AI depth for a data heavy tool, or full product delivery for a business app that has to talk to the rest of your systems. Shortlist two or three, verify the facts, and start with a scoped first release. If you want to talk through a business app with a Montreal team, see our mobile app development services or contact us.

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