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Usability testing service provider — Linkup ST

Our usability testing service tests key flows with real users, tracks where they hesitate, fail, or drop off, and turns findings into prioritized UX fixes tied to conversion and task success.
Book a call
Book a call
x13
Reddot Award
x6
A’ Design Award
x3
Webby Award
x4
Apple Award
Awards

Digital product design agency specializing in usability testing

40+ global awards recognize our work in software usability, built on real-user testing, behavioral insight, and design decisions tied to product performance.
Top-Tier Designers in the World ’25
x1
Nominated
Top-Tier Designers in the World ’25
Red Dot Design Award ’22-’26
x13
Winner
Red Dot Design Award ’22-’26
Apple App of the Day ’25-’26
x4
Nominated
Apple App of the Day ’25-’26
The Webby Awards ’25-’26
x3
Winner
The Webby Awards ’25-’26
A’ Design Award ’25
x6
Winner
A’ Design Award ’25
UI/UX, Xd, St
x17
Featured
UI/UX, Xd, St
UX Design Award ’22
x1
Winner
UX Design Award ’22
Ukrainian Design Very Best Of ’21
x1
Winner
Ukrainian Design Very Best Of ’21
For Whom

Solving digital product design challenges through usability testing

/01

You’re preparing for a product launch

Poor web or mobile usability can break key tasks at launch. We test critical flows with real users to uncover friction before release.
/02

New features are not being adopted

Features ship, but users ignore or misuse them. We check discoverability, comprehension, and task success to uncover what blocks adoption.
/03
‍

Redesign decisions rely on assumptions

We use online usability testing services to pressure-test redesign ideas with real users, cut weak assumptions early, and back decisions with evidence.
Book a call
Book a call
get started
Find your starting point
Audit, design, or optimize - choose the engagement that matches your
product's stage.
Quick validation
Get real user feedback on one critical flow and clear, actionable recommendations.
$
1,500
1 critical flow  •   1–2 weeks
Get started
Get started
WHAT'S INCLUDED
Kick-off & goal alignment
Analytics & heatmap review
Light UX audit (1 flow)
Moderated usability testing (3–5 users)
Behavioral analysis & key findings
Prioritized UX recommendations
Final report
Comprehensive study
UX audit and user testing across key journeys, with prioritized next steps.
$
3,500
Up to 3 key journeys  •  3–4 weeks
Get started
Get started
WHAT'S INCLUDED
Kick-off & stakeholder alignment
In-depth analytics & heatmap analysis
Full UX audit (up to 3 journeys)
Moderated usability testing (5–8 users)
Behavioral analysis & cross-journey insights
Prioritized UX recommendations
Measurement plan
Selected UX improvements (where needed)
Final report + findings walkthrough
UX Research partnership
An ongoing partnership to research, validate and improve your product, month after month.
Contact sales
Upcoming Research cycles  •  Flexible commitment
Contact sales
Contact sales
WHAT'S INCLUDED
Kick-off & research roadmap
Ongoing analytics & UX metrics tracking
Regular usability testing (5–8 users / cycle)
Research synthesis & insights
UX recommendations & design support
A/B testing plan and validation
Shared research repository
Bi-weekly (or monthly) performance reviews
Ongoing collaboration via Slack
Services

Our core capabilities

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Book a call

Pre-launch product validation

We test live products, staging environments, clickable prototypes, and new concepts to uncover usability risks and wrong assumptions before you build or ship.

Focused usability assessment

Through our usability testing services, we test one critical flow in a prototype or live product with your target users, pinpoint where they hesitate or fail, and give you clear fixes before development or release.

Full usability study

Our UX researchers test key user journeys across prototypes or existing products, compare recurring behavior, and show which issues hurt task success, adoption, or retention most.

UX audit + usability testing

Our website usability testing services combine expert review, analytics, heatmaps, and senior-led user sessions. You see where the funnel breaks and what to fix first.

Continuous usability testing

We test your new features and updated flows as the product evolves, verify whether fixes work, and help you catch new friction before it affects key product metrics.

PORTFOLIO

Real impact, real outcomes

See how we used usability testing to find real friction in our clients’ products, fix the right parts of the journey, and validate the changes with users.

Slattery Auctions

Slattery Auctions
Australia
Auctions, Heavy Machinery
16.7%
Growth in returning users
73%
More bids from mobile users vs desktop
14.4%
Task completion speed

YachtWay

YachtWay
USA
Yachting and Marine
100%
Clients attached after launch
1,500
Daily website traffic has surged past
$1m
Just for the design concept

Element X

Element X
USA
MarTech
93%
Task success rate
31
Minutes from
prompt to launch
+50%
Return usage within 20 days

Toto

Toto
Canada
Government & Public Services
83%
Main feature adoption
2 sec
Time to action
4.8
User effort score (CES)

Reverso

Reverso
France
Edtech
40%
Subscription Conversion Rate
200%
Feature Engagement
+32.9%
Active Users Retention

SkinSpotter

SkinSpotter
Estonia
Healthcare
82%
Photo Upload Completion
78%
Weekly Photo Tracking Usage
4.6
CSAT (Customer Satisfaction Score)
Impact

Design that delivers real business impact

We measure our success by your growth.
40+
International 
design awards
200+
Successfully 
delivered projects
10
Years of market 
experience
300%
Avg. ROI Increase 
for clients
98%
Client
Retention Rate
4.9/5
Clutch
Rating & Reviews
why us

Why choose Linkup ST?

Our usability testing service goes beyond spotting UX issues. We connect real user behavior to product metrics and turn findings into clear decisions your product and engineering teams can act on.
/01

Business impact sets the scope

We take a practical approach to our app usability testing service, focusing on flows that affect activation, conversion, retention, and task success. Your budget goes toward issues that matter most.
/02

Senior experts lead the study

Experienced UX specialists define the scenarios, interpret user behavior, and challenge surface-level feedback, so you get conclusions your product team can trust.
/03

Real behavior, not opinions

We watch what users actually do: where they hesitate, repeat steps, or abandon a task. Qualitative usability testing services show not only what fails, but why it fails.
/04

Clear priorities, not a findings dump

Not every usability issue deserves equal attention. We rank problems by their effect on key journeys and help you focus resources on the changes with the highest value.
/05

Recommendations built to ship

Our designers account for product logic and technical constraints when they define fixes, so your team gets practical changes that can move from research into development.
/06

Results you can measure

Our website usability testing service goes beyond “users liked it.” We use task success, completion time, feature adoption, drop-off, CES, and CSAT to measure whether the experience actually improved.
User Experience at Linkup ST

The core of our approach

PART 01

OKR-driven, measurable usability testing

We tie every study to a clear product goal and track signals like task success, completion time, drop-off, and conversion to show where usability affects business performance.
Objective
Metric
Usability insight
PART 02

Experience-driven behavioral insight

Metrics show where the flow fails. Real users show why. Our usability testing services for mobile & web applications uncover the hesitation, confusion, and decisions behind the friction.
Behavior
Friction
Better experience
Our Process

From insight to impact

We test the flows that matter most, observe where real users struggle, and turn those findings into specific changes your product and engineering teams can implement.
Book a call
Book a call

Goals & key flows

Hypotheses

User recruitment

Scenarios & tasks

Live & remote testing

Behavior data

Prioritized UX fixes

Retest & track

STEP /01
STEP /02
STEP /03
STEP /04
feedback

Clients about our cooperation

5.0

Their technical capability and design aptitudes were impressive

Linkup ST successfully completed the web pages, demonstrating progress and success. The team was very accommodating to our needs and tried their best to meet the deadlines.
Dr. CJ Au
Co-Founder & CEO
5.0

Innovative and supportive, they worked like it was their own project

Their work helped us launch and scale our product, resulting in $2,000,000 in revenue in four months. The team was innovative and supportive, worked like it was their own project, and communicated via virtual meetings. Moreover, Linkup ST had very focused delivery teams.
Rajneel Kumar
Co-Founder & COO
5.0

Great advice, consultancy, and the results we want

Linkup ST has delivered a software platform that we are already using. As a result, we have seen huge increases in productivity, time savings, and error reduction. The team has been very good at catering to our needs, always making us feel that we're their top priority.
Maya Dunne
Director of Operations
4.8

Design with Purpose, Built with Understanding

From the very beginning, their team demonstrated a clear understanding of our mission to empower social activists through intuitive technology. They took the time to truly grasp our vision and translated it into a design that is both beautiful and purpose-driven.
Jonathan Baha'i
Founder at Toto
5.0

Designed for trust

The product feels calm, intuitive, and trustworthy. It's exactly what users need in a sensitive healthcare context.
Skylar Donin
Product Owner at SkinSpooter
5.0

What stood out most about Linkup Studio was their combination of creativity, flexibility, and strategic thinking

Linkup Studio supported us in launching a comprehensive go-to-market strategy for our product. Their team took ownership of the entire digital process from refreshing our product design and developing the website to executing full-scale marketing campaigns.
Bozhena Klichuk
Product Lead at SafeTravy
4.9

The project's outcome is impressive

Reverso mobile app has around 4 million active monthly users. The Linkup Studio team has delivered good design work. After launching the app's redesign, which took them 3 months, Apple has told us it was the best redesign they've seen among companies they've requested to redesign their apps. The project's outcome is impressive.
Chadi Azar
Senior Product Manager at Reverso
5.0

They’re smart and capable in what they do

They’re very smart and capable in what they do. Linkup Studio has demonstrated an in-depth understanding of the our business requirements. Their competent engineers deliver great code and aren’t afraid to give frank suggestions towards the betterment of the product. They proactively demonstrate their commitment to a long-term relationship.
Isaac Katz
Consulting Director & Co-Founder
4.9

The client was blown away by the quality

Linkup Studio delivered their work on time and within budget. The client was blown away by the quality and the team's ability to capture the original vision. Furthermore, the team demonstrated the utmost commitment to fulfilling the requirements of the project and offering creative solutions.
Jean-Michel Moreau
CPO at Peerplays
4.0

They understood the needs of a specific niche

They understood the needs of a specific niche of influencer marketing and translated it into the software.
Yoel Israel
CEO & Founder at Cyfluencer
5.0

They accommodate the business’ requirements and requests

I’m happy about Linkup studio’s ability to do their work properly. The team lets me take the reins on the project, accommodating the business’ requirements and requests. Overall, their engagement with the Dexfolio has been going well.
Ben Sash
CEO at Dexfolio
5.0

Communication and willingness to assist

Their communication and willingness to assist with whatever we need are great.
David Larsen
Software Development Analyst at InfoED Global
4.8

They actually care about what they’re building

They actually care about what they’re building. Unlike other companies I’ve worked with, they think about the problem and focus on understanding the issue before trying to resolve it.
Paul Johnson
Founder & CEO at Snagshout
4.9

They are good value for money and easy to work with

Linkup has built the platform up to specifications, hitting milestones, and fixing bugs. They are good value for money, easy to work with, and committed to high-quality outcomes.
Jack Murphy
Co-Founder at Nestler
5.0

Expect a professional team that delivers work at a reasonable cost

Linkup Studio provides high-quality work. Their dedicated team provides excellent feedback and is interested in the project's success. They work rapidly, striving to meet deadlines. Their communication is noteworthy. Expect a professional team that delivers work at a reasonable cost.
Andrii Syvokhip
Founder at MusicWords
5.0

They're equipped with phenomenal design skills

Equipped with phenomenal design skills, Linkup Studio has produced a design that's helped the client spark user engagement and raise capital. The team exhibits superb project management skills. Diligent and thorough, they back their skills up with research.
Matt Sherwood
CEO at WeVidit, Inc
4.5

Each team member was highly efficient, responsive, and always available

I like the way the Linkup team was organized to work on the CashFlow project. Each team member was highly efficient, responsive, and always available. They all played their role very well.
Michael Konrad
Founder & CEO at CashFlow
5.0

We liked everything they offered

My co-founder sister and I were frequently asked by Linkup to add comments to the Figma layouts. They thought we didn't look at it, but we didn't leave comments because we liked everything they offered!
Nada Ali Al-Emadi
Co-founder at Qarqish
5.0

Linkup Studio cares deeply about our products

Linkup Studio team cares deeply about our products and understands the intents behind them. Their talented and scalable team manages projects well via GitHub and Notion. They're also very responsive and vet designs to prevent bad development.
Naseem Makiya
Founder & CEO at Impactive
5.0

Linkup Studio is a communicative team that leads an organized and flawless workflow

Linkup Studio has completed the deliverables, thoroughly following the agreed timeline and requirements. They've created sleek and visually-appealing designs. Linkup Studio is a communicative team that leads an organized and flawless workflow.
Meri EL
Project Manager at The Nightfall Group
5.0

They deliver the tasks on time and support regular and transparent communication

Working in an exceptionally professional way, they deliver the tasks on time and support regular and transparent communication. Their responsiveness, commitment, and affordable prices make them a perfect business partner.
Adam Frank
Co-Founder at Wisio
5.0

They’re all superstars to build such a complicated platform in such a short time

Seeing YachtWay functioning is a feeling beyond words. I stand in front of the Linkup Studio team and thank them for their incredible work. They’re all superstars to build such a complicated platform in such a short time!
Heigo Paartalu
CEO & Founder at YachtWay
5.0

Their hearts are invested in the project

Their hearts are invested in the project. The partnership feels much stronger than in would with others.
Tim Ruppert
CEO at Great Coach (Clear2play)
5.0

I’d definitely recommend them to anybody because they’re a great firm

The team has a great project management process, which allows them to establish a strong ongoing partnership. Overall, they produce high-quality and cost-effective services.
Yaniv Cohen
Partner at Leviathan Capital
5.0

They work efficiently, ask the right questions, and give good feedback

The work from LinkUp Studio continues to meet expectations and be reliably delivered within timeframes. Though more daily updates from their team could benefit the engagement, their team is proactive in asking key questions and ensuring they’re implementing every solution correctly.
Glen Barnes
Chief Product Officer at STQRY
5.0

Vision meets expertise

We were lucky to choose Linkup as our first developer. Delivered apps fulfilled the original vision, launched successfully, and organically attracted a dedicated user base. Language and time zones presented small issues, but Linkup's collaborative, committed team dynamic made up the difference. They behaved as a partner rather than a contractor.
Jay Severson
Founder & CEO at Nutty Putty
5.0

They care for the project as if it were their own

The client wouldn't have been able to start after a year of development without LinkUp Studio's work. They take concern with the project like it's their own and always make sure it's progressing.
Raphael Michel
CEO at Apartolino
5.0

Clarity and commitment unsurpassed

No one has understood what I want and what I draw up like they do. Linkup has been so good to me that I’ve stopped shopping around for other agencies.
Brittani Sylvester
CEO & Co-Founder at CLASHD
5.0

Exceeding expectations with unprecedented stability

The app doubled revenue over the last year, making it well-worth the initial investment. LinkUp manages high expectations and provides a sense of stability through a long-term partnership. Detailed project management allows them to meet milestones.
Sarah Pouders
Account Manager at Mobile Tour App Company
5.0

Candid communication and quality results

They’ve absolutely exceeded expectations in almost every step. They’re candid about expectations and communicative. Collaborating with them is easy and results in high-quality work.
John Kamman
Founder & Owner at Wholesum
faq

Common questions & answers

Ask a question
Ask a question

What do usability testing services include?

Yes. Our software usability testing services cover SaaS, enterprise, and data-heavy products. For developer-facing tools, API usability testing services can assess documentation, integration flows, and error handling.

Do you test websites?

Yes. Our website usability testing services focus on key journeys such as navigation, forms, checkout, and conversion flows to show where users hesitate, fail, or leave.

Do you test mobile apps?

Yes. Our mobile app usability testing services test apps across onboarding, navigation, core actions, and repeat-use flows to pinpoint friction and show what to improve.

Can you test complex software products?

Yes. Our software usability testing services cover SaaS, B2B, enterprise, and data-heavy products. We test complex workflows to uncover friction, cognitive load, and failed task paths.

Who takes part in usability testing?

We define participant criteria around your actual target audience and recruit users who match the relevant profile. Depending on the study, participants can come from your existing customer base, your own user community, or external recruitment panels and specialized research networks.

Can you test with our existing users?

Yes. If you already have an active user base, we can help define the right participant segments and test with your customers. If not, we can recruit participants externally based on your target audience and research criteria.

What happens after usability testing?

Our usability testing service turns findings into prioritized recommendations your team can act on. We can also validate the fixes and track how they affect real product metrics.

Unlock your next
growth stage

We’ve helped our clients secure $100M+ in funding and expand their presence worldwide.
We’ve helped our clients secure $100M+
in funding and expand their presence worldwide.
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