A fully custom, owned, mobile-first build — a React Native app for iOS & Android. Estimation, milestones and payment schedule at a blended rate of $20 / hour.
Custom mobile-first stack: a React Native app (iOS + Android), Node/Postgres backend, and a web admin/CMS for no-developer content editing, Stripe + WiPay payments, and interactive lesson activities. The 21-screen phone prototype is the design reference. A parent web app follows in a later phase.
| Scope | Hours | Cost @ $20/hr |
|---|---|---|
| v1 MVP mobile app — feature-complete, matches the prototype | 1,150 | ~$23,000 |
| Estimated total | 1,150 | ~$23,000 |
| Option | What it is | Indicative price |
|---|---|---|
| A · Feature-complete MVP Matches the prototype | The full custom platform incl. generator, red-flag alerts, community & gamification. Everest provides the content, marketing and branding. | $23,000 |
| B · Full Partnership Recommended | Everything in A + AI-assisted content transformation + ongoing growth & marketing. An end-to-end partner, not just a developer. | $6–10k / month |
Four milestones, each invoiced on acceptance. A 15–20% deposit against Milestone 1 begins the work.
| # | Milestone & deliverables | Hours | Cost |
|---|---|---|---|
| M1 | Foundation — mobile app & admin
Discovery, tech spec & data model, environments & CI, design system. React Native app + web-admin scaffolds, database, authentication & roles, family + per-child accounts, subscription-plans & 7-day free-trial onboarding. Marketing site + contact form. Learning Library with taxonomy, filters and search. |
375 | $7,500 |
| M2 | Learning experience, commerce & engagement
Lesson template + pathway sequencing (Math, Language Arts & Social Studies), interactive activity embeds, quiz engine + SEA mock exam (timed, past-paper mode, auto-marked), worksheets & differentiation. Parent custom-input generator (Custom Spelling — 4 modes), parent community, engagement (Brain Break, T&T Knowledge Quiz). Stripe + WiPay payments, 3-tier gated entitlements + tactile-kit ordering/tracking, protected content, previews, billing. Admin CMS for no-developer content editing. |
530 | $10,600 |
| M3 | Dashboard, insights, QA & security
Parent dashboard + per-child progress, learning-streak gamification, Learning Check diagnostic screener, red-flag "Insights & Alerts" + downloadable PDF report. Cross-browser & mobile QA, security and accessibility review, performance and Core Web Vitals. |
185 | $3,700 |
| M4 | Delivery — launch & handover
App Store + Google Play submission, backend deploy, monitoring & backups, admin training, documentation, and post-launch stabilization. |
60 | $1,200 |
| Total — v1 MVP | 1,150 | $23,000 |
The total effort is about 1,150 hours. Delivery speed depends on how many developers run in parallel on an intensive schedule; a focused team ships this in about six to seven weeks.