Mindcast | Voice Journal and Mood Tracker With AI Transcription, Charts and Podcast Export - SwiftUI

Mindcast – Voice Journal and Mood Tracker for iOS

Mindcast is a complete, App Store ready voice journaling template built with SwiftUI. Record your thoughts with one tap, get automatic on-device transcription, track your mood with AI sentiment analysis, and export your entries as a podcast-style audio file. Everything works 100% offline with no backend and no login required.

Demo Instructions

This app is fully offline. There is NO login and there are NO demo credentials needed.

• Download the source code, open it in Xcode and press Run.
• Tap the floating microphone button to record your first voice journal entry.
• Speak naturally, stop the recording and the app transcribes and analyzes your mood.
• Use the toolbar icons to open Search, Milestones, Insights, Mood Charts and the Podcast Export screen.
• Note: the premium screens (Insights, Mood Charts, Podcast Export) unlock via a StoreKit in-app purchase. In the simulator with no App Store account the purchase button simply marks the app as unlocked; no real account or backend is needed.

Everything the App Does

• One-tap voice recording with high quality AVAudioRecorder and animated pulsing record button
• Automatic on-device speech-to-text transcription using Apple Speech framework
• AI mood analysis: sentiment score and keyword extraction with NaturalLanguage (5 mood levels with emoji indicators)
• 20 journal categories (Goal, Idea, Gratitude, Morning, Work and more) with custom colors and icons
• Home dashboard with entry stats (entries, minutes, categories), category filter chips and recent mood summary
• Journal entry detail screen with audio player, waveform, duration, category card and collapsible transcription
• Full text search across all entries plus category filtering
• Mood Charts with Swift Charts: weekly mood trend bar chart, mood distribution donut chart and overall trend indicator (premium)
• Journal Insights: sentiment overview, frequent focus themes, peak journaling time and consistency stats (premium)
• Milestone Tracker: 40 achievements across Bronze, Silver, Gold and Platinum tiers with streak tracking and progress bars
• 52 rotating daily journaling prompts for inspiration
• Podcast Export: combine selected entries into a single MP3 or WAV file with smooth transitions (premium)
• Paywall with StoreKit 2 one-time lifetime unlock (no subscription), restore purchases supported
• 3-page animated onboarding flow (welcome, how to use, free vs premium)
• Light, dark and system appearance themes built into a clean color token system
• Haptic feedback on record and save actions, smooth spring animations and a friendly empty state
• Persistent local storage with SwiftData and optional iCloud CloudKit sync
• Automatic audio file recovery, data integrity checks and in-app rating prompt

Technology

• Language: Swift, SwiftUI
• Minimum iOS: 17.0 (iPhone, portrait)
• Data: SwiftData with optional CloudKit sync
• Speech: SFSpeechRecognizer on-device transcription
• NLP: NaturalLanguage (NLTagger) sentiment and keyword analysis
• Audio: AVFoundation recording and playback
• Charts: Swift Charts
• Monetization: StoreKit 2 one-time purchase
• Dependencies: none – zero third-party libraries, single Xcode target
• Requirements: Xcode 16 or newer, Apple ID for development

What the Buyer Gets

• Complete Xcode project with well organized, commented Swift source code
• All assets including the app icon asset catalog and color system
• Step by step HTML documentation with screenshots (setup, rename, re-theme, configure CloudKit, App Store submission)
• Preview screenshots and promo graphics
• Free updates to fix any reported issues

Development Disclosure

Portions of this template’s source code were developed with AI-assisted tools. All code has been reviewed and tested by the author. Required disclosure per Envato policy.

Important Note

This is a source code template, not a compiled app. You need a Mac with Xcode installed and basic Xcode knowledge to build, customize and submit the app to the App Store. Support is provided for the source code itself, not for teaching Xcode basics.