Synchrony Bank vs Zynlo Bank
High-Yield Savings Accounts Comparison

Last Updated: September 5, 2025

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Summary of Synchrony Bank vs. Zynlo Bank

As of September 5, 2025 Synchrony Bank offers an APY of 3.80% for its High Yield Savings account, with a minimum balance of $0, compared to Zynlo Bank's 4.35% APY for its Tomorrow Savings Account, with a minimum balance of $0.01.

Zynlo Bank yields $55 more than Synchrony Bank on a $10,000 balance after one year. Synchrony Bank pays $380, while Zynlo Bank pays $435 - an APY advantage for Zynlo Bank.

Synchrony Bank

Strengths

  • Synchrony Bank offers a competitive APY of 3.80%.
  • No minimum deposit or balance is required at Synchrony Bank.
  • Synchrony Bank has a high App Store rating of 4.8.

Potential Drawbacks

  • Synchrony Bank has no BBB rating.
  • Only online banking is available with Synchrony Bank.
  • Synchrony Bank's Google Play rating is lower at 4.5.

Zynlo Bank

Strengths

  • Zynlo Bank provides a higher APY of 4.35%.
  • Zynlo Bank has an A+ BBB rating, indicating strong trustworthiness.
  • Zynlo Bank has no maintenance fees for its accounts.

Potential Drawbacks

  • Zynlo Bank has a lower App Store rating of 4.0.
  • Zynlo Bank's Google Play rating is lower at 3.5.
  • Zynlo Bank requires a minimum deposit of $10.
Summary: Zynlo Bank offers a higher APY of 4.35% compared to Synchrony Bank's 3.80%. However, Synchrony Bank has a better App Store rating of 4.8. Zynlo Bank has an A+ BBB rating, while Synchrony Bank is not rated. Both banks have no maintenance fees and require no minimum balance, but Zynlo Bank requires a $10 minimum deposit to open an account.

Compare Synchrony Bank's vs Zynlo Bank's Savings Accounts

Synchrony BankZynlo Bank
ProductHigh Yield SavingsvsTomorrow Savings Account
APY
3.80% (as of 9/5/2025)4.35% (as of 9/5/2025)
Bundled Account
NoNo
FDIC-insured
YesYes
Online OnlyYesYes
Compound Frequency
DailyDaily
Minimum Deposit$0$10
Minimum Balance for APY$0$0.01
Maintenance Fee$0$0
Direct Deposit Required
NoNo
App Store Rating4.8/54.0/5
Google Play Rating4.5/53.5/5
BBB RatingNot RatedA+

Comparative Historical APY Insights (Last 6 Months)

Synchrony BankZynlo Bank
ProductHigh Yield SavingsvsTomorrow Savings Account
Latest APY3.80 %4.35 %
TrendFallingSideways
Slope (bps/mo)-5.10.0
Rate Changes / Mo0.170.00
Days Since Last Change94172
High (-6 m)4.00 %4.35 %
Low (-6 m)3.80 %4.35 %
Draw-down from High-5.0 %0.0 %
Volatility (CV)0.0260.000
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 173 days.
Low (-6 m)
Lowest APY in the last 173 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 Synchrony Bank vs Zynlo Bank

All calculations are based on APY.

Synchrony Bank

APY: 3.80%

Total savings breakdown:

  • Interest earned: $2,305.9 (11.36%)
  • Total contributions: $13,000 (64.02%)
  • Initial deposit: $5,000 (24.62%)

Your total balance

$20,305.90

Effective APY: 3.80% (based on your deposit and contributions)

Total balance: $20,305.9

Earnings: $2,305.9

Bank Overview

Zynlo Bank

APY: 4.35%

Total savings breakdown:

  • Interest earned: $2,662 (12.88%)
  • Total contributions: $13,000 (62.92%)
  • Initial deposit: $5,000 (24.20%)

Your total balance

$20,662.00

Effective APY: 4.35% (based on your deposit and contributions)

Total balance: $20,662

Earnings: $2,662

Bank Overview

With a $5,000 initial deposit and $13,000 in total contributions over 5 years, Synchrony Bank's total earnings would be $356.1 lower than Zynlo Bank's total earnings.

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

More Comparisons

Compare Synchrony Bank's APY of 3.80% with other banks
Compare Zynlo Bank's APY of 4.35% with other banks