Custom software development agency

Your technical partner for mobile apps and AI products

We design, build, and launch custom mobile apps and AI features for startups and growing businesses — products built to launch on time and keep working long after.

Rated 5.0
Clutch5.0
Upwork5.0

15 yrs

Shipping product engineering

60+

Launched mobile and AI products

5.0★

Clutch + Upwork — verified

10M+

Users reached

Industries

Solving Industry Challenges

Over time, we've mastered various industries, devising exclusive solutions that address specific demands and complexities.

Testimonials

What our customers say

Verified review
KeyToTech delivers high-quality development work, enabling a continuous partnership that’s growing. Their resources are reliable, professional, and adept at overcoming challenges. Their willingness to work hard and do their best stands out.
Aviad Coppenhagen

Aviad Coppenhagen

CTO at Atly

Verified review
KeyToTech has been very transparent throughout the whole process. Their attention to detail and ability to go above and beyond the tasks set stand out.
Matthew Trytell

Matthew Trytell

CEO and Founder at Zimizam

Verified review
We started with an open brief, and over time that expanded. Safe to say, build an MVP app for a consumer-facing brand was a huge task. KeyToTech team was not afraid to tackle a big task and get on with the work. On time, on budget, easy to deal with, and clear communication.
Jovan Pavlicevic

Jovan Pavlicevic

Co-Founder at mobile banking startup

Verified review
They fit in perfectly in terms of attitude and culture. It was a pleasure to work with them, and we got great results.
Keith Banwaitt

Keith Banwaitt

CEO and Founder at Tappter

Verified review
Over a year and a half, the platform have attracted over 800 thousand users, have reached the top 10 best in the industry category, and have improved their internal processes. KeyToTech team has built a solid relationship working together for quite some time. They always have their own opinion on the implementation and development options in making the right decision.
Sergii Koziuk

Sergii Koziuk

Product Owner at Meest Group

Verified review
Their great attitude and collaborative approach are impressive; they're proactive in suggesting alternative solutions. KeyToTech’s work resulted in improved performance and dependability over time. The team is flexible and efficient; they prioritize work to deliver key functionalities on time. Moreover, they adapt to new requirements and maintain an excellent attitude. Customers can expect great service.
Bob Rogers

Bob Rogers

CEO at Tour Digital Solutions Company

Verified review
Bogdan and KeyToTech team did a GREAT job building the Android app. They worked fast, was professional, and was very available. I am already planning on hiring them again. They also brought their own ideas to the table which made improvements to an already well thought out concept.
Gret Glyer

Gret Glyer

Founder at Donorsee

Verified review
KeyToTech delivered exactly what was needed, leaving the client satisfied with the collaboration. The team boasted top-notch communication skills and impressed with their results-driven approach and ability to deliver quality services quickly.
Jan Henri Kalinowski

Jan Henri Kalinowski

Founder at ChefTreff

Verified review
We hired KTT to develop the FE side of a native Android app (Kotlin) and they did a great job. KTT designed the architecture of the app, developed the application business logic according to our requirements and performed the integration with the 3rd party services as well as the backend side.
Oriel Bury

Oriel Bury

CEO and Founder

Verified review
They demonstrated a clear understanding of the sensitive context of mental health and humanitarian work in Ukraine.
Anton Khodakov

Anton Khodakov

Head of Programs Department, UA Mental Help

Verified review
Very rarely was there not a solution to a question or an idea that arose. Both teammates set realistic expectations for the short time we had but, also, made known that we could achieve almost all we desired to build. We were really only limited by time, never by their skill or expertise.
Grant Crusor

Grant Crusor

Founder, BNF Solutions

Verified review
Thanks to KeyToTech's work, we've been able to launch our app in multiple countries and launch a web app for web onboarding. The team has also increased our app's speed and reduced crashes, making it 99.8% crash-free. Overall, we've scaled quickly and gone from $30,000 in annual recurring revenue (ARR) to $1 million ARR. KeyToTech's ability to scale up the team fast is impressive, and the team has good knowledge.
Max Suttorp

Max Suttorp

Co-Founder at Flashbook

Verified review
KeyToTech has successfully launched the app on the Google Play Store. Since its launch, the app has had over 1.5 million downloads and a low crash rate of less than 0.5%. The team always delivers on time and is very responsive and independent, handling shipping and maintenance by themselves. KeyToTech is fast, reliable, and responsive. The team communicates well and delivers results with little guidance.
Stefan Liesendahl

Stefan Liesendahl

Co-Founder and CEO at Cranberry Apps

Meest
Cycling Hero
DonorSee
Tiplr
KindlyHand
Flitsboek
Cheftreff
Smaki-maki

Our ratings stand strong across prominent marketplaces dedicated to sourcing business services

  • Clutch

    Based on 17 reviews

    5.0
  • Upwork

    Based on 47 reviews

    5.0
  • Why Us

    Key benefits working with us

    • Deep Business Analysis
      Deep Business Analysis
      We thoroughly analyze our clients’ core business needs and requirements. This ensures that the software product we develop aligns perfectly with their goals and objectives. By understanding their unique challenges and opportunities, we can build tailored features that address specific pain points and drive their success.
    • Cost-Effective Solution
      Cost-Effective Solution
      Our focus on developing core features allows us to reduce costs associated with development, testing, and maintenance, providing clients with a cost-effective solution that meets their essential requirements without unnecessary expenses.
    • Data-Driven Decisions
      Data-Driven Decisions
      By incorporating analytics, reporting, and data visualization capabilities, we empower clients to gain valuable insights into user behavior, product performance, and market trends. This, in turn, ensures ongoing success and growth for your business.
    • Industry Expertise
      Industry Expertise
      With our expertise we understand the industry landscape, market trends, and user expectations, we ensure that the application’s structure is robust, scalable, and adaptable to future needs.
    • Software world
    • Clutch 2023
    • Clutch Fall 2023
    • Clutch UK 2024
    • Clutch Flutter UK 2024
    • AppFutura Ukraine

    Contact

    We're here to bring Your Vision to Life!

    Tell us what you're building — a mobile app, an AI integration, or scaling an existing product. We'll map out the next steps with you.

    • Free 30-minute discovery call — no commitment
    • A real reply from our team within 24 hours
    • NDA on request — your idea stays yours

    Prefer email?

    [email protected]

    Quick connect

    Share a few details about your project and we'll get back to you with next steps.

    Optional — up to 5 files, 10 MB each. PDF, docs, images and more.

    No spam, ever. We typically reply within 24 hours.