High-Yield Savings Account Comparison

Ally Bank vs. American Express

Compare rates, requirements, and features side-by-side to find the best option for you.

Analysis by Aviel Fahl
Updated January 21, 2026
Comparison of Ally Bank vs American Express savings accounts
Metric

Ally Bank

Savings Account

Jan 21, 2026

American Express

High Yield Savings Account

Jan 21, 2026
APY3.30%3.30%
Est. Earnings
$5,000+$165
$10,000+$330
$25,000+$825
$5,000+$165
$10,000+$330
$25,000+$825
Min Deposit
$0$0

Snapshot view. Rates subject to change.

Features
FDIC InsuredNo MinimumsGreat iOS AppGreat Android AppZelle® Supported
FDIC InsuredNo MinimumsGreat iOS AppZelle® Supported

Market Reality Check

Both of these banks offer rates below the current top tier. The best rates we track are currently above 4.20% APY.

See Top Rates

Comparison Analysis

Comparing Ally Bank vs. American Express

Updated: Jan 21, 2026

As of both Ally Bank (Savings Account) and American Express (High Yield Savings Account) offer an APY of 3.30% .

Both banks yield $330 in interest on a $10,000 balance after one year. Neither has an APY advantage, so consider other features (fees, access, app ratings, etc.) when choosing.

Why Ally Bank?

  • Higher rated Android app (4.4 vs 3.6)

Why American Express?

No distinct advantages found vs Ally Bank.

Shared Benefits

Both offer monthly maintenance-free account options Both banks have options with $0 opening deposit Fast transfers via Zelle® Available Nationwide Available to New & Existing Customers

Executive Summary as of

Both Ally Bank and American Express offer competitive high-yield savings accounts with an APY of 3.30%. Both accounts require no minimum deposit or balance, and there are no maintenance fees, making them accessible and cost-effective for savers. Additionally, both options are online-only, providing convenience for digital banking. While their APYs are identical, American Express has shown a slightly higher APY of 3.50% in recent quarters, which may appeal to those looking for the best yield. Overall, both banks provide excellent savings options without direct deposit requirements.

The analysis is based on current Banksparency database records

* This content is provided for informational purposes only; always verify details with the provider.

Verify At
Ally Bank

Non-sponsored link to official site

Verify At
American Express

Non-sponsored link to official site

Top Market Contenders

Ally Bank vs. American Express Savings Calculator

Calculations based on current APY for Savings Account and High Yield Savings Account
$
$

Both accounts earn exactly the same amount.

Ally Bank

Savings Account

3.30% APY

Savings Breakdown

  • Interest Earned
    +$330.00(3.2%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,330.00

Effective APY
3.30%

American Express

High Yield Savings Account

3.30% APY

Savings Breakdown

  • Interest Earned
    +$330.00(3.2%)
  • Total Contributions
    $0
  • Initial Deposit
    $10,000

Projected Balance

$10,330.00

Effective APY
3.30%

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

FeatureAlly BankAmerican Express
APY
3.30%
Verified: 1/21/2026
↘︎ 0.10%90d Change
3.30%
Verified: 1/21/2026
↘︎ 0.20%90d Change
Product NameSavings AccountHigh Yield Savings Account
Minimum Deposit$0$0
Min. Balance for APY$0$0
Monthly Fee$0$0
Branch AccessNoneNone
Account Type
Online Only
Online Only
Direct Deposit Req.NoneNone
Checking BundleNoNo
Mobile Apps
iOS4.7
Android4.4
iOS4.9
Android3.6
Zelle® Support
Available
Limit: $5,000/dayBenchmark for online Zelle; high limits.
Available
Requires Amex Rewards Checking; not available for standalone HYSA.
BBB RatingA+F
Next Steps
Visit Site

Non-sponsored link to official site

Visit Site

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📈 Compare Savings Rates Over Time

Historical Performance

Last 12 Months Analysis
MetricAlly BankAmerican Express
Savings AccountHigh Yield Savings Account
Current APY
3.30%3.30%
Trend
Stable Stable
Velocity (bps/mo)
-4.1-3.6
Days Since Change
8222
12-Month High
3.80%3.80%
12-Month Low
3.30%3.30%
Adjustments / Mo
0.420.42
Volatility Score
0.0430.037
How to read these metrics(Click to expand)

Trends & Velocity

  • Trend: The general direction of the rate over the analyzed period. Useful for spotting if a bank is currently aggressive or pulling back.
  • Velocity (bps/mo): Speed of change. A high positive number means they raise rates quickly. 10 bps = 0.10%.
  • Adjustments/Mo: "Twitchiness." High frequency means the rate changes constantly; low frequency means it's stable.

Risk & Range

  • High/Low: The absolute ceiling and floor of the rate during the 358-day window.
  • Volatility Score: Lower is better for predictability. It indicates how wildly the rate swings relative to its average.
  • Days Since Change: If this number is high (e.g., >90), the rate is very sticky. If low, it changed recently.

More Comparisons

Compare Ally Bank's APY of 3.30% with other banks
Bank PairCompetitor APYMin Deposit
Ally Bank vs Affirm3.20%$0
Ally Bank vs Axos Bank4.31%$0
Ally Bank vs Bank of America0.01%$100
Ally Bank vs Barclays4.00%$0
Ally Bank vs Bask Bank3.75%$0
Ally Bank vs Betterment3.25%$10
Ally Bank vs BMO Alto3.25%$0
Ally Bank vs Bread Savings4.00%$100
Ally Bank vs BrioDirect3.75%$5,000
Ally Bank vs Capital One3.30%$0
Ally Bank vs Carver Bank4.00%$5,000
Ally Bank vs Charles Schwab Bank0.15%$0
Ally Bank vs Chase Bank0.01%$0
Ally Bank vs Chime3.50%$0
Ally Bank vs CIT Bank3.75%$100
Ally Bank vs Citibank3.30%$0
Ally Bank vs Citizens Access™3.15%$0.01
Ally Bank vs Climate First Bank4.21%$50
Ally Bank vs Colorado Federal Savings Bank4.05%$50,000
Ally Bank vs Discover Bank3.30%$0
Ally Bank vs E*TRADE from Morgan Stanley3.50%$0
Ally Bank vs Elevault3.82%$0
Ally Bank vs EverBank3.90%$0
Ally Bank vs Fitness Bank4.75%$100
Ally Bank vs FNBO Direct3.00%$1
Ally Bank vs Forbright Bank3.85%$0
Ally Bank vs FVCbank3.85%$500
Ally Bank vs GO2bank4.50%$0
Ally Bank vs Ivy Bank4.00%$2,500
Ally Bank vs Jenius Bank4.05%$0
Ally Bank vs LendingClub4.00%$0
Ally Bank vs Marcus by Goldman Sachs3.65%$0
Ally Bank vs MutualOne Bank4.07%$20,000
Ally Bank vs My Banking Direct4.02%$500
Ally Bank vs Neighbors Bank4.20%$0
Ally Bank vs Newtek Bank4.35%$0.01
Ally Bank vs Openbank4.20%$500
Ally Bank vs Peak Bank3.99%$100
Ally Bank vs Pibank4.60%$0
Ally Bank vs PNC3.30%$0
Ally Bank vs Popular Direct3.90%$100
Ally Bank vs Presidential Bank3.75%$5,000
Ally Bank vs Quontic Bank3.50%$100
Ally Bank vs Salem Five Direct3.61%$10
Ally Bank vs Sallie Mae Bank3.90%$0
Ally Bank vs Santander Bank0.01%$25
Ally Bank vs SoFi Bank4.00%$0
Ally Bank vs Synchrony Bank3.65%$0
Ally Bank vs TD Bank2.36%$0
Ally Bank vs TIMBR4.15%$1,000
Ally Bank vs UFB Direct3.46%$5000
Ally Bank vs Upgrade3.05%$0
Ally Bank vs Valley Direct4.00%$1,000
Ally Bank vs Varo Bank5.00%$0
Ally Bank vs Vio Bank4.09%$100
Ally Bank vs Wealthfront3.90%$0
Ally Bank vs Wells Fargo0.05%$25
Ally Bank vs Zynlo Bank3.85%$10
Compare American Express' APY of 3.30% with other banks
Bank PairCompetitor APYMin Deposit
American Express vs Affirm3.20%$0
American Express vs Axos Bank4.31%$0
American Express vs Bank of America0.01%$100
American Express vs Barclays4.00%$0
American Express vs Bask Bank3.75%$0
American Express vs Betterment3.25%$10
American Express vs BMO Alto3.25%$0
American Express vs Bread Savings4.00%$100
American Express vs BrioDirect3.75%$5,000
American Express vs Capital One3.30%$0
American Express vs Carver Bank4.00%$5,000
American Express vs Charles Schwab Bank0.15%$0
American Express vs Chase Bank0.01%$0
American Express vs Chime3.50%$0
American Express vs CIT Bank3.75%$100
American Express vs Citibank3.30%$0
American Express vs Citizens Access™3.15%$0.01
American Express vs Climate First Bank4.21%$50
American Express vs Colorado Federal Savings Bank4.05%$50,000
American Express vs Discover Bank3.30%$0
American Express vs E*TRADE from Morgan Stanley3.50%$0
American Express vs Elevault3.82%$0
American Express vs EverBank3.90%$0
American Express vs Fitness Bank4.75%$100
American Express vs FNBO Direct3.00%$1
American Express vs Forbright Bank3.85%$0
American Express vs FVCbank3.85%$500
American Express vs GO2bank4.50%$0
American Express vs Ivy Bank4.00%$2,500
American Express vs Jenius Bank4.05%$0
American Express vs LendingClub4.00%$0
American Express vs Marcus by Goldman Sachs3.65%$0
American Express vs MutualOne Bank4.07%$20,000
American Express vs My Banking Direct4.02%$500
American Express vs Neighbors Bank4.20%$0
American Express vs Newtek Bank4.35%$0.01
American Express vs Openbank4.20%$500
American Express vs Peak Bank3.99%$100
American Express vs Pibank4.60%$0
American Express vs PNC3.30%$0
American Express vs Popular Direct3.90%$100
American Express vs Presidential Bank3.75%$5,000
American Express vs Quontic Bank3.50%$100
American Express vs Salem Five Direct3.61%$10
American Express vs Sallie Mae Bank3.90%$0
American Express vs Santander Bank0.01%$25
American Express vs SoFi Bank4.00%$0
American Express vs Synchrony Bank3.65%$0
American Express vs TD Bank2.36%$0
American Express vs TIMBR4.15%$1,000
American Express vs UFB Direct3.46%$5000
American Express vs Upgrade3.05%$0
American Express vs Valley Direct4.00%$1,000
American Express vs Varo Bank5.00%$0
American Express vs Vio Bank4.09%$100
American Express vs Wealthfront3.90%$0
American Express vs Wells Fargo0.05%$25
American Express vs Zynlo Bank3.85%$10