Updated in January 2026 – We’ve researched and ranked the leading mobile app development agencies in Montreal, and Sidekick Interactive tops the list. This list highlights each agency’s services, expertise, and client reputation so you can find the best fit for your project.
In this guide, we’ll review and compare the best mobile app development companies in Montreal based on client feedback from trusted review sites. As a engineering manager, startup founder or head of engineering looking for a trusted long-term mobile app development partner, this guide will help you identify quality companies in the Montreal area.
Comparison table : top mobile app development companies in Montreal, QC
| Rank | Company | Year in business | Rating | Review count |
| 1 | Sidekick Interactive | 15 | 5.0 | 50 |
| 2 | Nventive x Wepoint | 18 | 4.8 | 36 |
| 3 | Osedea | 15 | 4.7 | 58 |
| 4 | Appwapp | 16 | 4.8 | 20 |
| 5 | Algoseed | 5 | 5.0 | 26 |
| 6 | Underlabs | 17 | 4.9 | 12 |
| 7 | Guarana Technologies | 15 | 4.5 | 40 |
Our ranking methodology
To create our list of top mobile app development companies in Montreal 2026, we compiled data from five of the most trusted platforms for reviewing and rating mobile application development firms. Each review and its corresponding rating were gathered, and then we calculated a comprehensive summary score for each mobile app development company in Montreal across every platform.
The overall rating we display is based on a Bayesian average, a statistical method designed to produce a more balanced and reliable score for Montreal mobile app development agencies. This method takes into account both the number of client reviews a company has and the ratings provided in those reviews. This approach prevents companies with only a handful of extremely positive or negative reviews from being artificially overvalued or undervalued. In other words, Montreal mobile app development companies with more reviews carry more statistical weight, while those with very few reviews are adjusted toward a neutral baseline until they accumulate more customer feedback.
1. Sidekick Interactive
★
★
★
★
5.0 (50 reviews)
Company founded in 2011 | Visit website
Sidekick Interactive is a mobile app development company founded in 2011 and based in Montreal. They work with clients ranging from startups to enterprise organizations to build custom iOS and Android applications. Their services include native iOS/Android apps, cross-platform mobile solutions, web applications, backend systems, API integrations, and application modernization. The team emphasizes strong communication, agile development processes, transparent billing, and scaling resources up or down based on project needs. By working with Sidekick Interactive, clients benefit from a Montreal-based team dedicated to delivering high-quality mobile app development on time and on budget.
 |  |  |  |  |
| 4.9 | 4.8 | 5.0 | 5.0 | |
| 6 reviews | 18 reviews | 7 reviews | 19 reviews |
2. Nventive x Wepoint
Company founded in 2008 | Visit website
Nventive x Wepoint is a mobile app development company founded in 2008, specializing in custom iOS and Android applications, cross-platform mobile solutions, AI solutions, and web applications. Their approach focuses on close collaboration with clients, agile development practices, and flexible resource management, enabling startups and enterprise clients to accelerate their digital projects while ensuring high-quality mobile solutions and timely delivery.
 | | |  | |
| 4.8 | 4.7 | |||
| 16 reviews | 20 reviews |
3. Osedea
Company founded in 2011 | Visit website
Osedea is a mobile app development company founded in 2011, focusing on custom software development, UX/UI, and AI development. The company emphasizes collaborative client engagement, agile workflows, and adaptable resourcing. Osedea designs and engineers innovative solutions in the manufacturing, health, mining, agri-food and finance industries.
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| 4.9 | 4.3 | 4.9 | ||
| 38 reviews | 1 review | 19 reviews |
4. Appwapp
Company founded in 2010 | Visit website
Appwapp is a mobile app development agency founded in 2014, specializing in mobile application development, and web applications. Their approach emphasizes collaborative client engagement, agile development workflows, and scalable resource allocation, helping small and medium sized businesses deliver high-quality mobile solutions efficiently and on schedule.
|  | | | |
| 5.0 | 4.6 | |||
| 1 review | 19 reviews |
5. Algoseed Labs
★
★
★
★
5.0 (26 reviews)
Company founded in 2021 | Visit website
Algoseed Labs is a Montreal-based web and app development company founded in 2021, known for crafting innovative mobile solutions that blend technical precision with creative design. They specialize in e-commerce development, mobile app development, and UX/UI design tailored to business needs. Algoseed Labs working closely with clients through agile processes, iterative design, and scalable development teams, ensuring that every app is both user-friendly and technically robust.
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| 4.9 | 5.0 | |||
| 17 reviews | 9 reviews |
6. Underlabs
Company founded in 2009 | Visit website
Underlabs is an agile company of software engineers and developers founded in 2009, known for designing and building high-performance mobile applications. They specialize in native iOS and Android apps, cross-platform mobile development, and web applications, with a strong focus on user experience and product quality. Their collaborative, agile approach allows teams to iterate quickly and deliver robust, scalable mobile solutions for startups and enterprise clients.
| | | | |
| 4.9 | 4.9 | 4.6 | 5.0 | |
| 1 review | 7 reviews | 3 reviews | 1 review |
7. Guaraná Technologies
Company founded in 2011 | Visit website
Guaraná Technologies is a Montreal-based mobile app development company founded in 2011, specializing in custom iOS and Android applications, IoT development and UX/UI design. They focus on data-driven mobile solutions and emphasize collaborative development, agile workflows, and delivering apps that are scalable and user-friendly. Their approach ensures clients, from startups to enterprises, receive high-quality mobile applications tailored to business goals and market needs.
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| 4.8 | 4.8 | 3.9 | ||
| 16 reviews | 5 reviews | 19 reviews |