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Fintech & Mobile Product Development

K4 Tech Solutions is a product-focused development agency specializing in fintech and mobile products. We build neobanks, PCI DSS-compliant payment platforms, mobile apps, and SaaS tools end-to-end — from hypothesis to launch.

  • Min project size
    $5,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Tallinn, Estonia
  • Year founded
    Founded 2024

1 Locations

  • Tallinn , Estonia

Select Focus Area
Application Platforms
Amazon Application Development Framework
100%
AI Technologies & Models
Open AI GPT-3
60%
Anthropic
40%
API Type
Frameworks and CMS
Programming & Scripting
Typescript
30%
Python
10%
Industries
Financial services
50%
Information technology
30%
Business services
10%
Gaming
10%
Clients
Small Business (<$10M)
65%
Midmarket ($10M - $1B)
35%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 5 /5

Most Common Project Size

< $10,000 based on 1 review
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

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Highly Rated Similar Providers

Overall Review Rating

5.0
  • Quality

    5.0 /5
  • Schedule

    5.0 /5
  • Cost

    5.0 /5
  • Willing to Refer

    5.0 /5
See all 1 Reviews

K4 Tech Solutions Reviews

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Booking Platform Development for Gaming Lounge

  • Custom Software Development UX/UI Design Web Development
  • Kotlin Usability Testing User Research UX Strategy NextJS NodeJS Swift
  • Less than $10,000
  • Jan. - Mar. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their project management is absolutely incredible!"

May 19, 2025
CEO & Founder, GamersLab
Valentyn Trehub
Verified
  • Gaming
  • Bratislava, Slovakia
  • 1-10 Employees
  • Online Review
  • Verified

K4 Tech developed a mobile-first booking platform for a gaming lounge. The platform needed to enable real-time station reservations, admin controls, and user-friendly interactions.

Showing 1-1 of 1 Reviews

Our Story

We started K4 Tech Solutions in 2024 with one belief: founders deserve engineers who think like product people, not ticket-takers.

We build fintech — neobanks, payment platforms, mobile apps. The work is unforgiving: regulated, security-critical, no room for shortcuts. That shaped how we operate. Weekly demos, no black boxes, senior engineers only.

We ship, then stay: every project includes a month of free support. If it breaks, we fix it.

Locations (1)

Kaupmehe tänav 7-120 TallinnEstonia 10114

10 - 15

Contact K4 Tech Solutions

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