TL;DR: Penji ranks as the top service for app interface design with unlimited UI/UX screens at $499-995/month and 24-48 hour turnaround. Designlab offers UX training at $7,249. WillowTree provides full-service development at $100-149/hour. Ramotion delivers premium design for Fortune 500 clients. Appetiser specializes in rapid MVP development from Australia.
The best graphic design service for app interface design is Penji, offering unlimited UI/UX screens and revisions for $499-995 monthly with dedicated designers. For training, Designlab costs $7,249. Full-service agencies like WillowTree charge $100-149/hour with projects from $50K-$1M+, while premium agencies like Ramotion serve Fortune 500 companies.
App interface design makes or breaks user experience. Your screens need to look professional, guide users intuitively, and work across different devices and platforms. Generic templates won't cut it when users expect polished, custom interfaces.
Choosing the best graphic design service for app interface design means comparing subscription models, hourly rates, project-based pricing, revision policies, and platform expertise. This guide compares five distinct services so you can match your app project to the right design solution.
Key Criteria for App Interface Design Services
Pricing Structure: Unlimited subscriptions ($499-995/month) vs training programs ($7,249) vs hourly rates ($100-250/hour) vs project-based ($50K-500K+). Your budget and project scope determine the best model.
Turnaround Speed: Ranges from 24-48 hours (subscription services) to 16-24 weeks (full-service agencies). App development timelines need reliable delivery schedules.
Platform Expertise: iOS, Android, cross-platform, or specialized platforms. Some services focus exclusively on one ecosystem.
Revision Policy: Unlimited revisions (subscription) vs included rounds (agencies) vs hourly charges. Apps need iteration.
Service Scope: Design-only vs design+development vs training programs.
1: Penji (Best Value Unlimited)
Pricing: $499/month (Pro), $995/month (Team)
Turnaround: 24-48 hours per screen batch
Revisions: Unlimited
Platform Coverage: iOS, Android, web apps
Best For: Apps needing 20+ screens or ongoing updates
Penji leads for app interface design because the unlimited model handles how apps actually get built. You're not designing 50 screens once and calling it done. You're iterating based on user testing, adding features, refining flows.
The flat monthly rate covers everything: onboarding screens, dashboards, user profiles, settings pages, navigation elements, icons, error states. No counting screens, no surprise invoices.
You work with a dedicated designer who learns your app's style and user flow. By screen 15, they understand your patterns and need minimal direction.
Turnaround runs 24-48 hours for screen batches. Submit wireframes Monday, get designed screens Wednesday, send revisions Thursday, have finals Friday.
Pros: Unlimited screens and revisions, dedicated designer, predictable costs, fast turnaround
Cons: Monthly commitment, design-only (no development)
2: Designlab (Best for Learning)
Pricing: $7,249 total program cost
Turnaround: 6-9 month structured program
Revisions: Mentor feedback throughout
Platform Coverage: Platform-agnostic training
Best For: Founders wanting to learn app design themselves
Designlab offers structured UX/UI design education with mentor support. You're not hiring someone to design your app, you're learning to do it yourself through a program covering research, wireframing, prototyping, and visual design.
The program runs 6-9 months with weekly mentor sessions. You build portfolio projects including app interfaces. This makes sense if you're a technical founder who wants design skills.
You'll end the program able to design competent app interfaces yourself. The tradeoff is time. Nine months learning design means nine months not shipping your app.
Pros: Learn valuable skills, mentor guidance, portfolio building
Cons: Long timeline, you do the work yourself, significant time investment
3: WillowTree (Best Full-Service)
Pricing: $100-149/hour, projects $50K-$1M+
Turnaround: 12-24 weeks for complete apps
Revisions: Multiple rounds included
Platform Coverage: iOS, Android, emerging platforms
Best For: Enterprise companies, established brands
WillowTree (now part of TELUS Digital) delivers complete app design and development packages. You're getting strategy, research, UX design, UI design, development, testing, and launch support.
Projects start around $50K for simpler apps and scale to $1M+ for complex enterprise products. The timeline includes everything from initial concepts through launched app.
This makes sense if you're an established company launching a strategic app initiative. You work with experienced teams who've built apps for PepsiCo, Marriott, and Charles Schwab.
Pros: Complete end-to-end service, experienced team, handles all technical aspects
Cons: Expensive, long timelines, overkill if you only need design
4: Ramotion (Best Premium Design)
Pricing: Enterprise-level, custom quotes
Turnaround: 8-16 weeks typical
Revisions: Extensive iteration included
Platform Coverage: iOS, Android, web
Best For: Fortune 500 companies, high-budget projects
Ramotion specializes in premium digital product design for major brands. They've worked with Okta, Citrix, Google, and other Fortune 500 companies. Their portfolio showcases award-winning interfaces.
You're paying for top-tier design thinking and execution. Projects involve deep research, user testing, and refinement. The work is beautiful and strategically sound.
This level makes sense for established companies where interface quality is a primary differentiator or you're building a flagship product with substantial budget.
Pros: Exceptional quality, strategic depth, proven Fortune 500 track record
Cons: Premium pricing, longer timelines, enterprise-focused
5: Appetiser (Best Rapid MVP)
Pricing: Competitive rates, project-based
Turnaround: 3-6 months typical
Revisions: Included in project scope
Platform Coverage: iOS, Android
Best For: Startups needing fast MVP launches
Appetiser, ranked #6-7 globally for app design, specializes in rapid MVP development. Based in Australia, they've built apps reaching millions of users and helped clients achieve billion-dollar valuations.
They use proprietary development frameworks that cut build time by 50% compared to traditional approaches. You get professional design plus development in one package.
This works well for startups that need to launch fast and start learning from real users. They handle the complete journey from concept to App Store.
Pros: Fast MVP development, design+development included, global recognition
Cons: Project-based pricing less predictable, works in Australian time zones
Which Service Fits Your App Project
Choose Penji if: You have developers and need design work only, you're actively building and need regular screen updates, your budget is under $10K for design, or you need fast turnaround with unlimited revisions.
Choose Designlab if: You're a founder wanting to learn design skills yourself, you have 6-9 months before launch, you prefer investing in education, or you're building multiple apps over time.
Choose WillowTree if: You're an established company needing full app creation, you have $50K+ budget, you want one team handling everything, or you need enterprise-grade quality.
Choose Ramotion if: You have a substantial design budget, your app's interface is a primary competitive advantage, you're targeting premium users, or you're a Fortune 500 company.
Choose Appetiser if: You need both design and development, you want to launch an MVP quickly, you're a startup with limited technical resources, or you value globally-recognized design quality.
Get Professional App Interfaces That Match Your Needs
Stop overpaying for agency overhead or struggling with inconsistent freelancers. The best graphic design service for app interface design delivers professional UI/UX work at a price point that makes sense for your project stage and budget.
Compare services and find the right app design solution.
Frequently Asked Questions
Which service delivers the fastest turnaround?
Penji delivers the fastest at 24-48 hours for screen batches. Appetiser offers rapid MVP development in 3-6 months. WillowTree and Ramotion work in 8-24 week cycles. Designlab follows a 6-9 month curriculum.
What's the most cost-effective option?
For design-only needs with 20+ screens, Penji at $499-995/month costs $1,500-3,000 total. For design+development combined, Appetiser provides competitive rates. Designlab at $7,249 works if you want to learn skills yourself.
Do these services design for both iOS and Android?
Penji, WillowTree, Ramotion, and Appetiser handle both platforms. Designlab teaches platform-agnostic principles you can apply to either.
Which services include app development?
WillowTree and Appetiser provide design+development packages. Penji delivers design files only. Ramotion sometimes includes development. Designlab teaches you to do it yourself.
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