Honest comparison
FYN vs PocketGuard
PocketGuard is a budgeting app built around Leftover, a safe-to-spend number after bills and goals. FYN adds receipt line items, purchases logged as you pay, and an MCP connector for Claude, ChatGPT and Grok.
Feature comparison
FeatureFYNPocketGuard
With your AI
Works inside Claude, ChatGPT and Grok (MCP)
SupportedChatGPT on Plus and up
Not publicly documented
Read-only agent access you can revoke
Supported
Not publicly documented
Log of what each AI app asked
Supported
Not publicly documented
Purchase check before an agent buys
Supported
Not publicly documented
With your money
AI chat about your money
Supported
Not publicly documented
Line-item receipts and price history
SupportedPrice history on Pro
PartialAttach receipt photos
Email receipt forwarding
Supported
Not publicly documented
Purchases logged as you pay (Apple Pay, Google Wallet)
SupportediPhone and Android
Not publicly documented
Categorizes every transaction itself
Supported
Supported
Budget built from your spending
Supported
PartialAuto-adds bills to budget
Double-charge follow-through (dispute letter + deadlines)
SupportedLetters and deadlines on Pro
Not publicly documented
Proactive alerts
Supported
Supported
Bill negotiation and cancellation service
Not available
SupportedVia Billshark
Credit score
Not available
Not publicly documented
Bank sync
SupportedPro
SupportedPlaid + Finicity
iPhone, Android and web apps
Supported
Supported
Free plan
Supported
Not available
Price
$9.99/moFree plan available
$12.99/moor $74.99/yr · $149.99 lifetime · 7-day trial, no free plan
SupportedPartialWaitlistNot availableNot publicly documented
What PocketGuard does well
Straight from their own help pages and announcements.
Leftover gives a near real-time figure of what’s safe to spend after bills and goals.
A one-time lifetime plan ($149.99) is offered alongside monthly and yearly billing.
Plus connects unlimited bank accounts, using Plaid and Finicity for connectivity.
A debt payoff planner supports avalanche and snowball strategies.
Alerts cover fees, over-budget categories, unusual spending and bill reminders.
Supports zero-based, envelope, 50/30/20 and custom budgets, with rollovers.
Runs on web, iPhone, Apple Watch and Android, with a 4.6 App Store rating.
Bill lowering runs through partner Billshark, which PocketGuard says keeps roughly 40% of the first year’s savings.
The short version
Choose PocketGuard for its Leftover safe-to-spend number, a debt payoff planner, unlimited accounts or a one-time lifetime price. Choose FYN if you want a free plan, receipt line items, purchases logged as you pay, and a read-only MCP connector for Claude, ChatGPT and Grok.
Bring your money to every AI you use.
Start free, then add FYN to Claude, ChatGPT (Plus and up) or Grok with one URL.