Alongside our engineering work, we build and operate our own subscription apps for web, iPhone and Android. Every product is a digital service — no physical goods are shipped.
StudyWithKeldra
An AI-assisted study and exam-preparation app for web, iPhone and Android: flashcards built from your own notes, spaced-repetition review, quizzes, mock exams and exam-readiness tracking for students and certification candidates.
Plans and pricing (USD)
- Study — $14.99/month or $89.99/year
- Exam Prep — $24.99/month or $119.99/year
Every new account gets a 7-day free trial with everything unlocked. Subscriptions renew automatically each month or year until cancelled.
Product support: support@studywithkeldra.com
SkyLingoSift
An AI-powered language-learning app for iPhone and Android: real spoken conversation practice with honest pronunciation scoring, grammar corrections explained in plain language, and vocabulary flashcards built automatically from your own conversations — in English, Spanish, French, German, Japanese and Portuguese.
Plans and pricing (USD)
- Premium — $6.99/month or $34.99/year
Every new account gets a 7-day free trial with everything unlocked. Monthly and Annual renew automatically until cancelled.
Product support: support@skylingosift.com
NexaVella
A business-management platform for beauty professionals — hairstyling, barbering, nail care, skin care, massage & spa and cosmetology: online booking and appointments, customers, staff, services and products, invoicing, SMS and email notifications, and an AI Business Assistant that answers customer questions from your own FAQs. Works on web, iPhone and Android.
Plans and pricing (USD)
- Starter — $29/month
- Professional — $79/month
- Enterprise — $149/month
Every new account gets a 7-day free trial. Plans renew automatically each month until cancelled.
Product support: support@nexavella.com
More subscription apps are in development under the same company.