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Blockchain / EVM / AI

Rumble Fish is a Blockchain Development House specializing in Blockchain, AWS Cloud Applications, and AI.

You bring the product vision. We bring product-building expertise.

We follow industry standards and battle-tested practices to deliver value. Over the years, we’ve developed custom processes that help us become a reliable technology partner to our clients.

 

  • End-to-end solution development

We take care of the entire development process, from ideation to execution and maintenance.

  • Min project size
    $25,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Kraków, Poland
  • Year founded
    Founded 2017

1 Locations

  • Kraków , Poland

No have been added yet...

    Pricing Snapshot

    Min. project size $25,000+
    Avg. hourly rate $50 - $99 /hr
    Rating for cost 4.6 /5

    What Clients Have Said

    Rumble Fish's pricing appears to vary, with clients noting ongoing fee increases and challenges in budget adherence. While some projects faced management issues, others found value in their technical expertise and efficient execution, suggesting a mixed perception of overall cost-effectiveness.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    < $10,000 based on 9 reviews
    < $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

    Select a service to see pricing information

    Highly Rated Similar Providers

    Rumble Fish Review Insights

    Overall Review Rating

    4.6
    • Quality 4.8
    • Schedule 4.6
    • Cost 4.6
    • Willing to Refer 4.6

    Top Mentions

    Review Highlights

    • Effective Use of Modern Technologies

      Rumble Fish effectively employs modern technologies such as React, Node.js, and AWS, ensuring their solutions are up-to-date and competitive. Clients highlighted the successful transition from outdated systems to contemporary architectures.

    • Positive Client Recommendations

      Several clients chose Rumble Fish based on strong recommendations from other companies. The firm's reputation for delivering high-quality work and maintaining professionalism is a key factor in attracting new clients.

    • Exceptional Developer Mentorship

      The mentorship provided by Rumble Fish to its engineers was highlighted as a unique strength. This approach allows developers to grow within projects and deliver high-quality results, benefiting clients with skilled and motivated teams.

    • Strong Client Communication

      Many clients appreciated the effective communication with Rumble Fish, noting smooth interactions despite different time zones and languages. The team was open to various communication tools and approaches, enhancing project execution.

    • Timely and High-Quality Deliverables

      Rumble Fish consistently delivered projects on time and with high quality. Clients noted the team's dedication to maintaining high standards and their ability to meet tight deadlines while ensuring product excellence.

    • Inconsistent Project Management

      Feedback indicates mixed experiences with project management. While some clients found the project management collaborative and flexible, others faced challenges with communication, adherence to timelines, and fee increases, suggesting room for improvement.

    Rumble Fish Reviews

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    Custom Platform Development for FinTech Company

    • API Development Custom Software Development
    • $50,000 to $199,999
    • Dec. 2023 - Dec. 2024
    2.5
    Quality
    3.5
    Schedule
    2.5
    Cost
    2.5
    Willing to Refer
    1.5

    "While the overall experience had its challenges, the contributions of these developers showed a high level of skill." 

    Dec 23, 2024
    CEO, FinTech Company
    Anonymous
    Verified
    • Financial services
    • Los Angeles, California
    • 1-10 Employees
    • Online Review
    • Verified

    Rumble Fish was hired to develop a scalable platform for a fintech company. The team worked on the platform's code, front- and backend architecture, and API integration.

    Quiet

    • $200,000 to $999,999
    • Jan. 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Rumblefish's unique strength seems to be the mentorship they give to engineers."

    Feb 20, 2023
    Founder, Quiet
    Holmes Wilson
    Verified
    • Other industries
    • Worcester, Massachusetts
    • 1-10 Employees
    • Online Review
    • Verified

    Rumblefish has developed a chat app for a startup. They built a desktop messaging app using Zcash, a blockchain-based registry of usernames, and automated testing infrastructure using Jest and Chromatic.

    UI/UX Design for Party Game Mobile App

    • Mobile App Development UX/UI Design
    • Less than $10,000
    • Oct. - Nov. 2020
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "We really could rely on them just from the beginning. They knew what we wanted and how to make it smoothly."

    Sep 10, 2021
    President, Macabre Enterprises
    Sarah Mason
    Verified
    • Arts, entertainment & music
    • Nashville, Tennessee
    • 1-10 Employees
    • Online Review
    • Verified

    Rumble Fish Software Development was tasked with developing UI/UX designs for a party game's app. The client wanted marketing-friendly designs and a similar Victorian aesthetic for their existing card game.

    Mobile Application Development for CRM Service

    • Mobile App Development
    • $10,000 to $49,999
    • Nov. 2020 - Mar. 2021
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They are a great team that knows what they are doing."

    Sep 9, 2021
    Software Development Lead, Thulium
    Bartosz Bankowski
    Verified
    • Business services
    • Krakow, Poland
    • 11-50 Employees
    • Online Review
    • Verified

    A CRM service partnered with Rumble Fish Software Development in order to fix a messaging issue and choosing a suitable solution to develop the frontend and backend of their app.

    Custom App Development for IT Startup

    • Custom Software Development
    • Less than $10,000
    • May 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Rumble Fish Software Development helped with shaping our ideas into a specific and clear plan."

    Sep 9, 2020
    CEO, VerifiiD
    Michael McCormick
    Verified
    • Other industries
    • Liverpool, England
    • 1-10 Employees
    • Online Review
    • Verified

    Rumble Fish Software Development developed an identity verification MVP for a Liverpool-based IT startup. The solution was written in ReactNative and will be available for both Android and iOS.

    Full Security System for Critical Home Infrastructure

    • Cybersecurity
    • Less than $10,000
    • Jan. 2019 - Jan. 2020
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They hire specialists with a seniority -level that always brings assurance of high-quality work."

    Aug 30, 2020
    CEO, Anchor Leg Technology
    Khalid Alaraimi
    Verified
    • Other industries
    • Muscat, Oman
    • 1-10 Employees
    • Online Review
    • Verified

    Rumble Fish Software Development built an IoT-based home security system that connects hardware with Raspberry Pi software. They held extensive discovery meetings before outlining the project and timeline.

    Blockchain Dev for Cryptocurrency Exchange Platform.

    • Custom Software Development
    • $200,000 to $999,999
    • Dec. 2017 - June 2019
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "They were able to introduce project developers with great technical seniority."

    Aug 7, 2020
    CTO, The Ocean
    Ari Kardasis
    Verified
    • Financial services
    • Brooklyn, New York
    • 11-50 Employees
    • Online Review
    • Verified

    Rumble Fish created the MVP of an Ethereum-based ERC20 token trading platform. Besides blockchain technology, the team used a PostgreSQL database, which was a major technical change.

    Frontend Dev & Business Analytics for Healthcare Platform

    • Custom Software Development
    • $200,000 to $999,999
    • May 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "The technical seniority of their developers is outstanding. They can manage any technical difficulty with ease."

    Jul 17, 2020
    COO, Space Inch
    Mitchell Maddox
    Verified
    • Other industries
    • Nashville, Tennessee
    • 1-10 Employees
    • Online Review
    • Verified

    Rumble Fish Software Development has created a new health savings spending platform for a third-party client. While building the new solution using an updated tech stack, they've maintained the previous one.

    Website & CMS Dev for Dog and Cat Hotel

    • Web Development
    • $50,000 to $199,999
    • Jan. - July 2019
    4.0
    Quality
    5.0
    Schedule
    3.5
    Cost
    4.5
    Willing to Refer
    5.0

    "I really like the way they thought outside the box to accommodate my requests."

    Oct 30, 2019
    Director of Marketing, Wag Hotels Inc
    Kristen Rau
    Verified
    • Other industries
    • California, United States
    • 501-1,000 Employees
    • Online Review
    • Verified

    Rumble Fish Software Development re-created a website, which involved design and front-and backend programming. The site had reservation request functionality and an accompanying contact management system.

    Showing 1-9 of 9 Reviews

    Locations (1)

    Eisenberga 11/3 KrakówPoland 31-523

    41 - 49

    Contact Rumble Fish

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