alpha-testingTrack spending and crush your budget goals, anywhere in the world.

Meet Nest - budget app

Nest is a privacy-first offline budgeting app and secure expense tracker. Instantly log spending without bank links, negotiate split bills offline with friends, and manage travel budgets globally with automatic currency conversions.

v1.1.0Latest
iOS & Android
Nest - budget app app screenshot
The good stuff

Features you’ll love

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Instant Log, Zero Lag

Track your spending on subways, flights, or remote hikes. The app opens in an instant and saves everything locally, syncing automatically when you have signal.

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🤝

Built-in Split Bill negotiation

Split dinner bills or trip expenses with ease. Friends can propose adjustments right inside the app, letting you approve changes with a tap—no awkward discussions.

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🌎

Automatic Currency Magic

Shop or travel globally and enter transactions in local currency. Nest handles conversion to your home budget automatically using real-time rates.

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Never Face a Blank Screen

When one budget period ends, Nest keeps showing your recent spending habits so you stay aware and motivated while setting up your next goals.

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Seamless History Editing

Spotted a mistake in a past month? Simply navigate back and fix it. Updates are applied instantly, while keeping the app fast and lightweight.

More Coming Soon

Actively building and updating cool new budgeting features to help you master your finance goals.

Choose your tier

Free vs. Premium

Start completely free with zero friction. Upgrade to Premium to unlock unlimited friends, real-time sync, and international currency conversions.

FeatureFreePremium
Cloud Sync & Backup
Keep your data secure and accessible across all your devices.
Local-only storageReal-time background cloud sync
Friends Limit
Add friends to split meals, trips, or shared expenses.
Up to 2 friendsUnlimited friends
Bill Split Negotiations
Propose splits and let friends counter-offer directly in the app.
Local draft calculator onlyLive sync & direct counter-offers
Multi-Currency Magic
Spend abroad and automatically convert split shares using live rates.
Manual conversion helperLive exchange rates & auto-converting splits
Budget History & Archive
Look back at past spending cycles to trace habits and edit errors.
Active cycle onlyUnlimited past cycles with full edit access
Always-On Dashboard
Avoid blank screens when transition periods end.
Empty screen between cyclesFallback to last completed cycle insights

Frequently Asked Questions

Find immediate answers regarding data structures, device synchronization, and billing.

01Can I track budgets and log expenses completely offline?
Yes. Nest is a fully offline-first app. You can record transactions, split bills, and check budgets with zero signal. Everything syncs safely when you are back online.
02How does the offline split bill negotiation work without awkwardness?
If a friend wants to adjust their share, they can send a direct counter-offer in the app. Once you approve it with one tap, everyone's budget updates automatically without awkward math.
03Is Nest a good travel expense tracker for foreign currency conversions?
Yes. Enter your purchase in any foreign currency and Nest instantly converts it to your home currency using live exchange rates, keeping your budget accurate while traveling.
04Does Nest help transition budget periods without losing insights?
Yes. Instead of showing an empty screen at the end of a month, Nest keeps displaying insights from your last completed cycle to help you transition into your next spending goal seamlessly.
05Can I manually edit past transactions and historical budgets?
Yes. You have full access to your past history. You can look back at any previous period, fix transaction errors, and keep your records perfect.
Terms & Conditions
Welcome to Nest (the "App"). By downloading, installing, or using the App, you agree to be bound by these Terms of Use.

1. DATA & PRIVACY
Nest is an offline-first application. Your budget data is stored locally on your device in a secure cache. If you choose to enable cloud synchronization, your data will be transmitted and stored in our secure database. We do not sell or share your financial data with third parties.

2. SERVICE LIMITATIONS
We provide the App on an "as-is" and "as-available" basis. While we strive for 100% database consistency, we are not responsible for any data loss resulting from device hardware failure, operating system conflicts, or database synchronization anomalies.

3. ACCEPTABLE USE
You agree to use the App only for lawful, personal financial tracking. You must not attempt to reverse-engineer, modify, or disrupt the App's background sync and API systems.

4. AMENDMENTS
We reserve the right to modify these terms at any time. Your continued use of the App following any updates constitutes acceptance of the new terms.