Application Design. The app that rocks
iOS, Android, and web apps that are getting adopted. UI/UX product design, industrial design system, tested prototyping. Seyna saved €78k in recruiting a product designer thanks to us.
*As Soon As Possible (tired of anglicisms)

100%
Designers for seniors (ex-Doctolib, M6)
4-8 weeks
MVP deadline → production
240+
Design system components delivered on average
Our success story
Branding that makes an impression, packaging that stands out on the shelf, campaigns that convert. We design strong visual identities and materials that speak directly to your end customers.
B2C & Retail
Tech companies
B2B Services
Our success story
Branding that makes an impression, packaging that stands out on the shelf, campaigns that convert. We design strong visual identities and materials that speak directly to your end customers.
B2C & Retail
Tech companies
B2B Services
3 reasons not to design your app with a freelancer or a traditional agency
The plight of poorly designed apps: 21% are uninstalled after the first use (source: Localytics). Your development budget goes up in smoke if the UX is shaky.


A dedicated senior product designer. Not an intern who learns at your expense.
Our designers have created flows for Doctolib (3M users/month), M6, Seyna. They are proficient in iOS/Android/Web patterns, accessibility (WCAG 2.1), and technical constraints (performance, loading states, error handling). As a result: your developers do not spend 3 weeks correcting interface inconsistencies.


Inclusive industrial design system. Not 50 versions of the same button.
We deliver 200 to 300 documented components (buttons, inputs, modals, cards, navigation). Each component is designed with its states (default, hover, active, disabled, error), its variants (sizes, colours), and its spacing rules. Benefit for your developers: -60% build time on the following features. Benefit for you: total visual consistency, zero design debt.


Prototypes tested with real humans. Not validated haphazardly.
We test interactive prototypes (Figma or Framer) with 5 to 15 real users before development. Moderated or unmoderated tests depending on your budget. We identify points of friction (completion rates <80%, task times >2x expected), we correct, and we retest. You only develop flows that work. No more post-development pivots that cost €40k.
Our ServicesApplication Design (Mobile & Web)
Everything you need, in a single subscription
01 /
User research & competitive benchmarking
Audit of 8 to 12 competing apps. User interviews (5-10 people). Summary of pain points and differentiating opportunities. Deliverable: research document + empathy map.
02 /
Information architecture & user flows
Comprehensive mapping of user journeys (onboarding, main actions, edge cases). Optimized structure to reduce the number of clicks. Deliverable: Figma/Miro flowcharts + sitemap.
03 /
Wireframes & interactive prototypes
Low-fidelity wireframes to validate the structure. Then high-fidelity clickable prototypes (transitions, animations, micro-interactions). Deliverable: Figma/Framer prototype testable on mobile/desktop.
04 /
UI Design & complete design system
Final pixel-perfect interface (iOS, Android, responsive Web). Design system with 200-300 components, colour/typography/spacing tokens, usage guidelines. Deliverable: organized Figma files + Storybook or Zeroheight documentation.
05 /
Handoff dev: specifications, assets, code snippets
Figma files with auto-layout and technical annotations. Export of assets (SVG, PNG @1x/@2x/@3x). CSS/Swift/Kotlin code snippets for critical components. Your dev team saves 40% of time on integration.
06 /
Post-launch support & iterations
Analytics tracking (conversion rates, drop points, heatmaps). Iterations based on real data. If you are on a Dafolle subscription: adjustments included. Otherwise: separate mission.
They chose Dafolle for their website redesign.
Some examples of achievements



From idea to live site in 4 steps
For emergencies,
delivery possible within 24 hours
with our Boost Mode

From idea to live site in 4 steps
For emergencies,
delivery possible within 24 hours
with our Boost Mode
Week 1
Framing & User Research
Product brief, competitive benchmarking (8-12 apps), user interviews (5-10 people). Deliverable: research document, personas, empathy map.
Week 2-3
Architecture & User Flows
Definition of the tree structure, mapping of user journeys (onboarding, main features, edge cases). Deliverable: sitemap + detailed flowcharts.
Week 4-5
Wireframes & Low-Fidelity Prototyping
Wireframes to validate the structure without getting lost in the visuals. Clickable prototype to test the logic. Deliverable: Figma wireframes + navigable prototype.
Week 6-7
UI Design & High-Fidelity Prototyping
Design of final screens (iOS/Android/Web), micro-interactions, transitions. High-fidelity prototype for user testing. Deliverable: final mockups + interactive prototype.
Week 8
Design System & Documentation
Building the design system: components (200-300), tokens (colours, typography, spacing), guidelines. Deliverable: Figma library + Storybook/Zeroheight documentation.
Week 9-10
User Testing & Optimization
Prototype testing with 5-15 real users. Identification of frictions (completion rate, task time). Corrections and re-tests if necessary. Deliverable: testing report + optimized mockups.
Week 10+
Development Handoff
Preparation of files for the developers: technical annotations, export of assets (@1x/@2x/@3x), CSS/Swift/Kotlin code snippets. Deliverable: Figma Dev Mode files + asset package.
Post-Launch Support
Analytics tracking, iterations based on real user data. On subscription: included. Otherwise: dedicated mission. Deliverable: optimization recommendations + V2 mockups.

Your app deserves better than a shabby design.
Book a 30-minute appointment. We will audit your project and let you know if we can help (spoiler: in 87% of cases, yes), and we will send you a fixed quote within 48 hours.

Your app deserves better than a shabby design.
Book a 30-minute appointment. We will audit your project and let you know if we can help (spoiler: in 87% of cases, yes), and we will send you a fixed quote within 48 hours.
| Critères | Dafolle | Product Agency | Freelance UX/UI |
|---|---|---|---|
| Delivery time | 4-8 weeks (depending on scope) | 3-6 months (with 42 meetings) | Variable (if the freelancer doesn't ghost) |
| Price | Fixed monthly fee | Evolving quote (guaranteed amendments) | Hourly rate (vague scope) |
| Design system included | 200-300 documented components | Sold as an etra (+30k€) | Rarely mastered |
| User testing | 5-15 users per phase | "We will validate internally" | Never budgeted |
| Optimized dev handoff | Figma files in De Mode + code snippets | -clickable PDFs | Cluttered files |
| Post-launch iterations | Included in subscription | New quote for each modification | Random availability |
| Critères | Dafolle | Product Agency | Freelance UX/UI |
|---|---|---|---|
| Delivery time | 4-8 weeks (depending on scope) | 3-6 months (with 42 meetings) | Variable (if the freelancer doesn't ghost) |
| Price | Fixed monthly fee | Evolving quote (guaranteed amendments) | Hourly rate (vague scope) |
| Design system included | 200-300 documented components | Sold as an etra (+30k€) | Rarely mastered |
| User testing | 5-15 users per phase | "We will validate internally" | Never budgeted |
| Optimized dev handoff | Figma files in De Mode + code snippets | -clickable PDFs | Cluttered files |
| Post-launch iterations | Included in subscription | New quote for each modification | Random availability |
The tools we use for Application Design (Mobile & Web)

Any questions? We respond within 48 hours.
It is known that entrusting your design to an external team,
raises some questions. Here are our answers.
What is the difference between you and a full-time product designer?
Are you coding the app or just the design?
How much does it cost to design an app at Dafolle?
Is the design system included or is it an additional cost?
Are you conducting user tests, or is it up to us to manage?
Do you deliver for iOS, Android, and Web?
My app is already in production but the UX is terrible. Can you redesign it?
Do you manage animations and micro-interactions or is it just static?
Deadline if it's urgent (imminent launch, investors to persuade)?
And what if my needs change along the way?




