App Overview

Oona: Ferber Method Timer icon

Oona: Ferber Method Timer

Thomas Pang · Health & Fitness

Sleep training can feel overwhelming, whether you are navigating bedtime, overnight wake-ups, or daytime naps

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.9
22 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
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Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

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Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Oona: Ferber Method Timer: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Expand sound library with user-uploaded sounds.

Assumption to check: Limited sound options for sleep sounds.

Validate with people who use this workflow before building.

Hypothesis 2

Include analytics to track sleep trends over time.

Assumption to check: Lack of sleep analytics and detailed reporting.

Validate with people who use this workflow before building.

Hypothesis 3

Add a community section for parents to share tips and experiences.

Assumption to check: No community features for parents.

Validate with people who use this workflow before building.

Hypothesis 4

Offer more free features to encourage user retention.

Assumption to check: Subscription model may deter users.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Sleep training can feel overwhelming, whether you are navigating bedtime, overnight wake-ups, or daytime naps. Oona brings clarity to the process with simple instructions, built-in timers, and detailed progress tracking. Whether you are following the Ferber method or one of its popular variations, Oona helps you manage each step of night and nap training with less guesswork, so you can focus on what matters most: helping your baby build healthy sleep habits. App Features at a Glance 1. Trainer Step-by-step support throughout every night and nap training session. • Track crying, sleep, wake-ups, and check-ins with a single tap • Follow clear, simple instructions at every stage • Use built-in timers to keep wait intervals and check-ins on track • Switch between night and nap training based on your baby’s schedule 2. Sleep Plans Choose or create separate plans for nighttime sleep and daytime naps. • Select from preset Ferber-style night and nap plans • Customize wait intervals and check-in durations • Create your own schedule from scratch • Save multiple plans as your baby’s sleep needs change 3. Journey See progress across nights and naps over time. • Visual charts show trends in falling asleep, crying, wake-ups, check-ins, and more • Review completed night and nap sessions in one timeline • Tap any session to view detailed sleep training data 4. Session Details Get a closer look at each night or nap training session. • View a visual timeline of every tracked event • Review crying time, sleep duration, wake-ups, and check-ins • Edit entries and add personal notes for additional context 5. FAQ Find clear guidance for both night and nap training. • Read trusted information based on the Ferber method • Learn how nighttime sleep training differs from nap training • Find easy-to-understand answers to common questions • Get guidance for challenging moments and less common situations

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Screenshots

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Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Starter

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.