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Sublet

A 100% offline, privacy-first subscription tracker and manager. Multi-currency support, transparent spending analysis, and billing reminders — all data stays entirely on your device.

APP IN PROGRESS
PRIVACY POLICY TERMS OF USE SUPPORT
SCREENSHOTS & PREVIEWS
Sublet preview

Overview

Sublet is a cross-platform mobile app (iOS & Android, built with Flutter) for tracking and managing recurring subscriptions — Netflix, Spotify, your gym, work software — with a 100% offline, privacy-first philosophy: no accounts, no mandatory cloud sync, no ads, and no third-party tracking SDKs. All data is stored locally on your device.

Features

Multi-currency subscription management

  • Add, edit, archive, and delete subscriptions with full details: name, price, billing cycle (daily/weekly/monthly/yearly), category, and notes.
  • Per-subscription currency support — Netflix billed in USD and a local gym in VND can live in the same list.
  • Choose a base currency to aggregate all spending, always showing original amounts alongside conversions.
  • User-maintained exchange rates: enter and edit rates manually with last-edited timestamps; totals update in real time when rates change.

Billing calendar and reminders

  • Visual billing calendar with charge-density highlights for heavy-billing months.
  • “Due soon / Due today / Overdue” states for each charge.
  • Local on-device notifications before each billing date, with a customizable lead time.

Transparent spending analysis

  • Portfolio efficiency score (0–100), redundancy detection, and per-subscription verdict badges: WORTH IT / BORDERLINE / NOT WORTH IT.
  • All analysis rules are documented and reviewable directly in the app — no black box.
  • What-if simulator: toggle a subscription off to preview the impact on your score and total spend before canceling anything.
  • Compare against cheaper alternatives with computed monthly savings.
  • Spending summaries by day/week/month/year and per category.

Everyday utilities

  • Built-in logo library covering 140+ popular services, or pick your own photo from the camera/photo library as a subscription icon.
  • Home screen widget showing upcoming charges.
  • A multi-currency demo dataset to try everything instantly, cleared with one tap.
  • Interface available in English, Vietnamese, Spanish, French, Hindi, Japanese, Korean, Russian, and Chinese; light/dark mode support.

Sublet Pro

  • The free tier tracks up to 5 subscriptions.
  • Upgrade to Sublet Pro (yearly or lifetime) to unlock unlimited subscriptions, advanced analytics, and iCloud sync.
  • Payments are processed through your App Store / Google Play account; previous purchases can be restored anytime.

Availability

Sublet is in active development and not publicly available yet. The source code is kept private; the app will ship on the App Store and Google Play when ready, with download links added to this page at release. It targets iOS 14+ and Android 11+.

Quick start

  1. Open the app and pick your base currency during onboarding.
  2. Add your first subscription: enter the name, price, currency, and billing cycle.
  3. Enable reminders to get notified ahead of each billing date.
  4. Open the analysis screen to see your efficiency score and portfolio recommendations.

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