Ally Bank vs Discover Bank
High-Yield Savings Accounts Comparison

Last Updated: July 15, 2025

Summary of Ally Bank vs. Discover Bank

As of 7/15/2025 both Ally Bank (Savings Account) and Discover Bank (Online Savings Account) offer an APY of 3.50% .

Both banks yield $350 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.

Ally Bank

Strengths

  • Ally Bank offers a competitive APY of 3.50%, consistent with last month's rate.
  • Ally Bank has no direct deposit requirement for its savings account.
  • Ally Bank has a solid App Store rating of 4.7.

Potential Drawbacks

  • Ally Bank's APY has decreased from 3.60% over the past month.
  • Ally Bank has no physical branches.

Discover Bank

Strengths

  • Discover Bank also offers a 3.50% APY, unchanged from last month.
  • Discover Bank has a higher App Store rating of 4.9.

Potential Drawbacks

  • Discover Bank has no physical branches.
  • Discover Bank's Google Play rating is lower at 4.3.
Summary: Both Ally Bank and Discover Bank offer a competitive APY of 3.50% for their savings accounts, unchanged from last month. Ally Bank has a slightly lower App Store rating of 4.7 compared to Discover Bank's 4.9. Neither bank has physical branches, and both have no direct deposit requirements. However, Ally Bank's Google Play rating is higher than Discover Bank's, which may appeal to some users.

Compare Ally Bank's vs Discover Bank's Savings Accounts

Ally BankDiscover Bank
ProductSavings AccountvsOnline Savings Account
APY
3.50% (as of 7/15/2025)3.50% (as of 7/15/2025)
Bundled Account
NoNo
FDIC-insured
YesYes
Online OnlyYesYes
Compound Frequency
DailyDaily
Minimum Deposit$0$0
Minimum Balance for APY$0$0
Maintenance Fee$0$0
Direct Deposit Required
NoNo
Visit BankSavings AccountOnline Savings Account
App Store Rating4.7/54.9/5
Google Play Rating4.4/54.3/5
BBB RatingA+A+

Comparative Historical APY Insights (Last 6 Months)

Ally BankDiscover Bank
ProductSavings AccountvsOnline Savings Account
Latest APY3.50 %3.50 %
TrendSidewaysSideways
Slope (bps/mo)-4.9-4.6
Rate Changes / Mo0.530.53
Days Since Last Change2719
High (-6 m)3.80 %3.75 %
Low (-6 m)3.50 %3.50 %
Draw-down from High-7.9 %-6.7 %
Volatility (CV)0.0240.022
APY Insights Glossary
Latest APY
Most recent advertised annual-percentage yield.
Trend
Direction over the last 6 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 (-6 m)
Highest APY in the last 169 days.
Low (-6 m)
Lowest APY in the last 169 days.
Draw-down from High
How far today sits below the 6-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 Ally Bank vs Discover Bank

All calculations are based on APY.

Ally Bank

APY: 3.50%

Total savings breakdown:

  • Interest earned: $35 (3.38%)
  • Total contributions: $0 (0.00%)
  • Initial deposit: $1,000 (96.62%)

Your total balance

$1,035.00

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

Total balance: $1,035

Earnings: $35

Bank Details

Discover Bank

APY: 3.50%

Total savings breakdown:

  • Interest earned: $35 (3.38%)
  • Total contributions: $0 (0.00%)
  • Initial deposit: $1,000 (96.62%)

Your total balance

$1,035.00

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

Total balance: $1,035

Earnings: $35

Bank Details

After 1 year Ally Bank would earn you the same as Discover Bank.

More Comparisons

Compare Ally Bank's APY of 3.50% with other banks
Compare Discover Bank's APY of 3.50% with other banks