Money Guard
Solo iOS Developer
What is Money Guard?
MoneyManager is an iOS-first personal finance app focused on privacy-first tracking. It supports manual transaction logging, timeline grouping, dashboard insights, merchant memory, budget warnings, CloudKit sync, and export.
How might we help users track spending and stay in control of money with minimal friction while keeping personal data private and device-centric?
Must stay low-cost, privacy-first, and function smoothly offline with eventual sync.
A fast and trustworthy way to record spending and monitor financial health daily.
Need to keep architecture maintainable while shipping many features quickly as a solo developer.
Users are sensitive about financial privacy and expect reliable syncing and clear insights.
The Solution
A layered SwiftUI app (UI -> ViewModel -> Repository -> Core Data) backed by NSPersistentCloudKitContainer, with modular services for transaction entry, dashboard analytics, merchant suggestions, budgets, notifications, and export.
View live appopen_in_newProcess
TimelineArchitecture and domain modeling
Core Data + CloudKit persistence setup
Repository and service layer implementation
Transaction, dashboard, and settings delivery
Automated test coverage and iterative refinement
Deliverables
OutputCore Data entity model and repository layer
Transaction CRUD and timeline interface
Dashboard financial insights and budget warnings
Merchant memory and suggestion services
Notification scheduling and settings modules
CSV/JSON export service
Automated unit test suite
Key Decisions
Privacy-first architecture with Core Data as local source of truth
NSPersistentCloudKitContainer for seamless sync/restore
Strict UI -> ViewModel -> Repository separation for maintainability
Configurable budget thresholds and category budget alerts
Service-level and viewmodel-level automated tests for critical flows
Impact
Delivered a production-ready finance foundation with validated CRUD flows, timeline grouping, dashboard calculations, budget alerts, iCloud-ready sync plumbing, and broad unit-test coverage across repositories/services/viewmodels.
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