American Express vs Pibank
High-Yield Savings Accounts Comparison

Last Updated: September 5, 2025

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Summary of American Express vs. Pibank

As of September 5, 2025 American Express offers an APY of 3.50% for its High Yield Savings Account, with a minimum balance of $0, compared to Pibank's 4.60% APY for its Pibank Savings account, with a minimum balance of $0.01.

Pibank yields $110 more than American Express on a $10,000 balance after one year. American Express pays $350, while Pibank pays $460 - an APY advantage for Pibank.

American Express

Strengths

  • American Express offers a competitive APY of 3.50%.
  • American Express has a high App Store rating of 4.9.
  • No maintenance fees on the High Yield Savings Account.

Potential Drawbacks

  • American Express has an F BBB rating and is not accredited.
  • American Express has no branches for in-person banking.
  • American Express has a lower APY compared to Pibank.

Pibank

Strengths

  • Pibank offers a higher APY of 4.60%.
  • Pibank has no minimum deposit requirement for its savings account.
  • Pibank has no maintenance fees on the Pibank Savings account.

Potential Drawbacks

  • Pibank has a low App Store rating of 2.4.
  • Pibank has a low Google Play rating of 1.8.
  • Pibank also has no branches for in-person banking.
Summary: Pibank provides a significantly higher APY of 4.60% compared to American Express's 3.50%. However, American Express boasts a better App Store rating of 4.9. Both banks lack physical branches and charge no maintenance fees. Notably, Pibank has low ratings on both app platforms, while American Express has a poor BBB rating of F, indicating trustworthiness concerns.

Compare American Express' vs Pibank's Savings Accounts

American ExpressPibank
ProductHigh Yield Savings AccountvsPibank Savings
APY
3.50% (as of 9/5/2025)4.60% (as of 9/5/2025)
Bundled Account
NoNo
FDIC-insured
YesYes
Online OnlyYesYes
Compound Frequency
DailyDaily
Minimum Deposit$0$0
Minimum Balance for APY$0$0.01
Maintenance Fee$0$0
Direct Deposit Required
NoNo
App Store Rating4.9/52.4/5
Google Play Rating3.8/51.8/5
BBB RatingFA

Comparative Historical APY Insights (Last 7 Months)

American ExpressPibank
ProductHigh Yield Savings AccountvsPibank Savings
Latest APY3.50 %4.60 %
TrendSidewaysSideways
Slope (bps/mo)-3.9-0.0
Rate Changes / Mo0.440.00
Days Since Last Change44203
High (-7 m)3.80 %4.60 %
Low (-7 m)3.50 %4.60 %
Draw-down from High-7.9 %0.0 %
Volatility (CV)0.0230.000
APY Insights Glossary
Latest APY
Most recent advertised annual-percentage yield.
Trend
Direction over the last 7 months (regression slope).
Slope (bps/mo)
Average monthly change; 10 bps = 0.10 pp.
Rate Changes / Mo
Typical number of APY moves per month.
Days Since Last Change
Recency of the latest APY adjustment.
High (-7 m)
Highest APY in the last 203 days.
Low (-7 m)
Lowest APY in the last 203 days.
Draw-down from High
How far today sits below the 7-month peak.
Volatility (CV)
Coefficient of variation = stdev ÷ mean.
Why Track Savings-Account APYs?
  • See how quickly a bank reacts to Fed moves or competition.
  • Gauge “twitchiness” - frequent moves can annoy savers.
  • Spot if you're buying near a peak (draw-down) or riding a rise.
  • Slope (bps/mo) shows speed of change.
  • Volatility (CV) scales jumps by average level.

Calculate Savings Growth for American Express vs Pibank

All calculations are based on APY.

American Express

APY: 3.50%

Total savings breakdown:

  • Interest earned: $2,114.1 (10.51%)
  • Total contributions: $13,000 (64.63%)
  • Initial deposit: $5,000 (24.86%)

Your total balance

$20,114.10

Effective APY: 3.50% (based on your deposit and contributions)

Total balance: $20,114.1

Earnings: $2,114.1

Bank Overview

Pibank

APY: 4.60%

Total savings breakdown:

  • Interest earned: $2,825.8 (13.57%)
  • Total contributions: $13,000 (62.42%)
  • Initial deposit: $5,000 (24.01%)

Your total balance

$20,825.80

Effective APY: 4.60% (based on your deposit and contributions)

Total balance: $20,825.8

Earnings: $2,825.8

Bank Overview

With a $5,000 initial deposit and $13,000 in total contributions over 5 years, American Express's total earnings would be $711.7 lower than Pibank's total earnings.

The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.

More Comparisons

Compare American Express' APY of 3.50% with other banks
Compare Pibank's APY of 4.60% with other banks