Joseline: Custom Digital Keyboards for Celebrity Fan Monetization
A native mobile application featuring an exclusive library of custom emojis, stickers, and GIFs curated by television personality Joseline Hernandez. The platform bypasses native OS restrictions to let fans inject branded digital assets directly into third-party messaging apps like iMessage and WhatsApp.
- 500+
- App Downloads
- 200+
- Total Users
- 120+
- Push Notifications
Overview
Joseline app is a custom mobile keyboard and digital merchandise platform built exclusively for television personality Joseline Hernandez. The application provides her fanbase with a dedicated, monetized library of exclusive emojis, stickers, and high-quality GIFs, engineered to function seamlessly across third-party messaging platforms like iMessage and WhatsApp.
For Joseline Hernandez, the Goal Was Owning the Digital Fan Experience
Entertainment brands and public figures face a distinct commercial challenge: translating massive social media metrics into owned, predictable revenue. Relying entirely on external social platforms limits direct sales opportunities and leaves audience engagement vulnerable to algorithm changes.
The client required a standalone iOS application to serve as a direct-to-consumer storefront for exclusive digital merchandise. The objective was to build a secure, scalable mobile environment—leveraging Apple's In-App Purchase framework—that allowed users to unlock and export custom media, successfully transforming passive followers into active paying customers.
The Challenge
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OS-Level Integration
- Engineering custom iOS keyboard extensions to inject media directly into restrictive third-party chat environments.
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Secure Monetization
- Building rigorous validation pipelines for Apple In-App Purchases to strictly govern premium content access.
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Payload Optimization
- Structuring Node.js architecture to rapidly fetch heavy GIF files without degrading native device performance.
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Dynamic CMS
- Developing a centralized backend allowing the client's management team to categorize and push new digital assets live.
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Interface Parity
- Designing the digital keyboard to perfectly mirror native iOS typing layouts to eliminate user friction
Project Challenges
Engineering a standalone digital keyboard opened several high-value functional channels for the client’s brand:
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Embedding branded media natively into private messaging environments like iMessage and WhatsApp, transforming fans into active daily promoters.
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Establishing a direct-to-consumer digital storefront powered by Apple In-App Purchases to unlock a scalable, high-margin revenue stream.
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Deploying an agile content management system (CMS) that equips the client's management team to instantly publish new sticker packs in response to real-time viral trends.
Project Solutions
To bypass strict OS sandboxing and establish a secure digital storefront, AppZoro delivered three core architectural builds.
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Developed a custom iOS extension enabling users to seamlessly drop heavy GIFs and stickers into iMessage or WhatsApp with zero input lag.
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Integrated Apple’s In-App Purchase gateway with robust server-side validation to instantly process micropayments and unlock premium merchandise.
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Deployed a scalable Node.js backend and CMS dashboard, giving the client full control to publish new trending content to users in real time.
Tech stack
Technologies
Built with a modern, scalable technology ecosystem.
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Mobile
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Swift (iOS Native)
Mobile
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Backend
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Node.js Express.js
Backend
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D
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MongoDB
D
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Design Tools
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Adobe XD Zeplin
Design Tools
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Development Tools
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Xcode
Development Tools
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Our Process
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Feasibility & Scope
OS restriction analysis Media payload mapping
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Architecture Design
Extension prototyping Database structuring
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Core Development
iOS native integration CMS backend API setup
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Quality Assurance
OS compliance testing App Store rollout
Post-Deployment Stability & Performance
- 92% Customer Engagement
- 85% Service Discovery Improvement
- 2X Digital Reach
- Universal Flawless media injection across all major messaging environments
- Autonomous Independent client control over live content updates via CMS
- Encrypted Secure server-side validation for premium content access
Following the public rollout, the custom keyboard extension demonstrated reliable integration across third-party chat applications, maintaining consistent asset delivery without disrupting native device performance.
Client Testimonial
The team asked better questions than we did. We arrived with a feature list and left the first workshop with a shorter one that actually described the program. Twelve weeks later our clients had something they open every morning.
