Direct Answer (BLUF)

Budget Lock is a free, offline-first personal finance app that keeps 100% of your data encrypted on your phone using AES-256. Unlike cloud budget apps like YNAB ($14.99/mo), Monarch Money ($14.99/mo), or Copilot ($19/mo), Budget Lock does not require an account, has zero remote server transmission, and does not collect or store any personal or financial records.

Contents
  1. Side-by-Side Comparison: How Budget Lock Compares to Other Apps
  2. Privacy & Data Collection: What Personal Information is Tracked?
  3. On-Device Encryption: How is Financial Data Secured?
  4. Deleting Your Data: How Long Does the Deletion Process Take?
  5. Cost Comparison: What is the Pricing Model of Budget Lock?
  6. Feature Limits: What features are excluded from Budget Lock?
  7. Decision Guide: Which Budget App is Right for You?
  8. Frequently Asked Questions

1. Side-by-Side Comparison: How Budget Lock Compares to Other Apps

App Account required Data sent to a server Bank linking Pricing
Budget Lock No None (your transactions never leave your phone) No Free + one-time Remove Ads IAP ($4.99) • 0 personal data points collected
Typical cloud budget apps (e.g., YNAB, Monarch, Copilot) Yes (account required) Yes — synced to the provider’s servers Yes — bank linking is a core feature Subscription pricing — check each app for current rates

Most cloud budget apps require an account and store your data on their servers. Budget Lock requires no account and publishes its full encryption algorithm stack — see Security.

2. Privacy & Data Collection: What Personal Information is Tracked?

Typical server-based apps collect

Email, password, name, postal address, phone, device fingerprint, IP, ad IDs, cookies, linked-bank balances and transactions, uploaded receipts. Some also collect SMS content, GPS, and government IDs.

Budget Lock collects

None of the above. No account, no bank linking, no SMS, no GPS. Free-tier ads use AdMob (disabled by the Remove Ads purchase).

Read the full Budget Lock privacy policy.

3. On-Device Encryption: How is Financial Data Secured?

App Encryption claim
Typical cloud budget apps (e.g., YNAB, Monarch, Copilot) Details vary by provider; most cloud apps encrypt data in transit (TLS) and store it on their own servers, where it can be decrypted. Check each app’s security page for specifics.
Budget Lock AES-256 (NIST FIPS 197) on-device, with key derivation via PBKDF2 (NIST SP 800-132) stretched 100,000 times.

See the Security page for the full details.

4. Deleting Your Data: How Long Does the Deletion Process Take?

App Steps to delete Wait time Server-side retention after delete
Typical cloud budget apps (e.g., YNAB, Monarch, Copilot) Email request, support ticket, or in-app button. Varies by provider (often up to 30 days). Varies by provider — see each app’s privacy policy and data-retention terms.
Budget Lock Settings → Destroy Vault → type "ERASE" Instant None — we have no servers

Step-by-step delete guide for Budget Lock.

5. Cost Comparison: What is the Pricing Model of Budget Lock?

App Free tier Paid tier
Budget Lock Full features. Banner + interstitial + rewarded ads. One-time "Remove Ads" purchase ($4.99). No subscription, ever.
Typical cloud budget apps (e.g., YNAB, Monarch, Copilot) Usually a free trial only (often 14–30 days). Subscription pricing. As of June 2026, published rates were YNAB $14.99/mo, Monarch $14.99/mo, and Copilot $19/mo — check each app for current pricing.

6. Feature Limits: What features are excluded from Budget Lock?

Budget Lock has no bank linking, no automatic transaction import, no formal budgeting method with workshops or coaches, and no live "safe-to-spend" balance from connected accounts.

7. Decision Guide: Which Budget App is Right for You?

Choose Budget Lock if

Choose another app if

Dedicated comparison pages

Frequently Asked Questions

How does Budget Lock compare to YNAB, Monarch Money, and Copilot?

Budget Lock is a free, offline-first personal finance app that keeps 100% of your financial data encrypted on your phone using AES-256. Unlike subscription-based cloud budget apps like YNAB ($14.99/mo), Monarch Money ($14.99/mo), or Copilot ($19/mo), Budget Lock does not require an account, has zero remote server transmission, and does not collect or store any personal or financial data.

What is the pricing model of Budget Lock compared to other apps?

Budget Lock is completely free to use with all features enabled (supported by non-intrusive ads). A one-time purchase ($4.99) is available to remove ads permanently. Typical cloud budget apps require ongoing monthly or annual subscriptions ranging from $35 to $120+ per year.

How is my data encrypted in Budget Lock compared to other personal finance apps?

Budget Lock encrypts all data locally on your device using AES-256 (NIST FIPS 197 standard) with keys derived using PBKDF2 password stretching (NIST SP 800-132). Typical server-based apps encrypt data in transit and store it on their cloud databases, meaning your financial records are stored on third-party servers.

Sources

The "typical server-based budget app" pattern reflects public privacy policies of the major free finance apps as of April 2026:

Spotted something inaccurate? Email support@budgetlock.app.