As of November 2026, this directory tracks 56 cross-platform companies. Hyperlink InfoSystem currently sits at the top of the list (5.0-star average from 497 verified reviews, $25 - $49 / hr, in business since 2011). Looking at the group as a whole, the midpoint hourly rate is $75, the median rating is 4.4, and 22% report a team of 50 or more. Most frequently listed specialties here include Mobile App Development, Bot Development, AI Development, and Web Development.

Every company on this page is evaluated on the same real signals: how clients have rated their work, what they charge per hour, how big their team is, and how long they've been in business. Clients rate these cross-platform firms 4.8/5 on average. $25 - $49 / hr is the most common rate band. Roughly 21% of the companies listed report a headcount of 50 or more. Before reaching out to any shortlisted firm, it's worth cross-checking its review history and portfolio directly - every listing is manually checked (founding year, services, team size) and reviews go through a moderation step before they go live.

56
Verified Firms
$25 - $49 / hr
Most Common Rate
4.8
Average Rating
21%
Have 50+ Employees
How this list is built: Companies are added only after manual research into their foundation year, service offerings, ratings, and employee strength. Client reviews go through a verification step before being marked Verified and shown publicly. Listings marked Sponsored pay for premium placement — sponsorship does not affect star ratings or review content.

Top-Ranked cross-platform Companies

Compare the highest-ranked firms first side by side.

Rank Company Rating Reviews Hourly Rate Team Size Founded Headquarters Action
1 5.0 497 $25 - $49 / hr 1,000 - 9,999 2011 Jersey City, NJ Visit Profile
2 4.7 8 $50 - $99 / hr 50 - 249 2008 Sofia, Bulgaria Visit Profile
3 4.7 7 $25 - $49 / hr 50 - 249 2006 Sliven, Bulgaria Visit Profile
4 4.6 7 $25 - $49 / hr 10 - 49 2007 Sofia, Bulgaria Visit Profile
5
4.6 7 $50 - $99 / hr 250 - 999 2012 Sofia, Bulgaria Visit Profile
6
4.2 8 $50 - $99 / hr 10 - 49 2015 Sofia, Bulgaria Visit Profile
7 4.1 6 $50 - $99 / hr 10 - 49 2014 Sofia, Bulgaria Visit Profile
8
4.4 10 $25 - $49 / hr 2 - 9 2009 Sofia, Bulgaria Visit Profile
9
4.5 10 $25 - $49 / hr 10 - 49 2011 Sofia, Bulgaria Visit Profile
10 4.7 9 $50 - $99 / hr 10 - 49 2013 Sofia, Bulgaria Visit Profile

The List of Top 10+ Cross Platform App Development Companies in Bulgaria | Top Cross Platform App Developers Bulgaria November 2026

Sponsored
2011
< $25
1000+
$10,000+
Mobile App Development Web Development VR App Development AR App Development Unity 3D Game Development Wearable App Development UI-UX Design Web Design Internet of Things AI Development
2013
$100 - $149
10 - 49
$5,000,000+
Mobile App Development Web Development UI-UX Design Web Design Digital Strategy Logo Designing
No reviews yet
2005
$100 - $149
2 - 9
2011
$25 - $49
10 - 49
4.7 8 Reviews
2015
$50 - $99
2 - 9
$50,000+
Mobile App Development Web Development Wearable App Development UI-UX Design Internet of Things
2019
$25 - $49
10 - 49
2024
$25 - $49
Freelancer
2025
$25 - $49
2 - 9
2008
$50 - $99
2 - 9
2010
$50 - $99
10 - 49
—
$25 - $49
10 - 49
2014
$25 - $49
10 - 49
$25,000+
Mobile App Development Web Development Custom Software Development Chat Bots & AI Development
2006
$25 - $49
50 - 249
$2,500,000+
Mobile App Development Web Development Custom Software Development E-commerce Development Enterprise App Development
No reviews yet
2012
$100 - $149
Freelancer
1997
$50 - $99
50 - 249
No reviews yet
2025
Undisclosed
2 - 9
No reviews yet
2015
$25 - $49
2 - 9
2015
Undisclosed
2 - 9
No reviews yet
2001
< $25
50 - 249
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FAQ

Frequently Asked Questions

Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.

Start by writing down what "done" actually looks like for your project — the core features, the platforms it needs to run on, and a rough budget ceiling. From there, narrow your list to App Development agencies in Bulgaria whose past work matches that scope, and put each one through the same first conversation: a real problem from your project, presented cold, to see how they think rather than how they pitch. The App Development company in Bulgaria that asks the sharpest follow-up questions is usually the one worth a second meeting.

Most App Development teams in Bulgaria that have been doing this for a while have a playbook for overseas clients: structured sprint check-ins, shared dashboards you can log into any time, and written updates that don't rely on everyone being online at once. The ones that do this well treat documentation as part of the deliverable, not an afterthought. Before committing, it's worth asking a App Development firm in Bulgaria to show you what a typical week of client communication actually looks like.

There's no single number here — a App Development company in Bulgaria might quote a few thousand dollars for a narrow, well-defined build and a much larger figure for a full product with integrations and ongoing support. The only way to get a real answer for your situation is to send the same brief to a handful of App Development firms in Bulgaria and compare the itemized breakdowns, not just the bottom-line total.

Rates for App Development developers in Bulgaria spread out quite a bit depending on seniority — junior developers sit at one end, senior engineers and architects at the other, with company size and specialization shifting things further. What tends to hold across the board is that App Development developers in Bulgaria come in noticeably cheaper than comparable talent in the US or Western Europe, without a proportional drop in the quality of work.

The most experienced App Development developers in Bulgaria tend to come out of companies that have been operating for the better part of a decade or more, with senior staff who've seen a wide range of project types and scales rather than a narrow slice. That kind of institutional memory — knowing what tends to go wrong on a complex build before it happens — is hard for newer firms to replicate. Verified reviews and direct references remain the best way to confirm it's real and not just a claim on a website.

Look for App Development companies in Bulgaria that offer dedicated-team arrangements and can point to client relationships that have lasted multiple years, not just multiple projects. That kind of continuity usually means the firm treats your product roadmap as something they have a stake in, rather than a queue of tickets to clear. Ask directly for a reference from a client they've worked with for two-plus years — the answer (or lack of one) tells you a lot.

App Development companies in Bulgaria known for reliable delivery usually share a few habits: established agile processes, experienced project managers rather than junior coordinators, and reusable components that cut down on repeated work. Ask a shortlisted App Development firm in Bulgaria directly for their on-time delivery rate and how they've handled a project that started slipping — the answer to the second question is usually more revealing than the first.
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