Bmo Alto vs. Zynlo Bank
High-Yield Savings Account Comparison
By Aviel Fahl|Last Updated: November 12, 2025
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Summary of BMO Alto vs. Zynlo Bank
Key Metrics at a Glance
| Feature | BMO Alto | Zynlo Bank |
|---|---|---|
| Top Savings APY | 3.25% Savings Account | 4.20% Tomorrow Savings Account |
| Minimum to Open | $0 | $10 |
| Minimum Balance for Top APY | $0 | $0.01 |
BMO Alto
Strengths
- BMO Alto offers a $0 minimum deposit and balance requirement for its savings account.
- BMO Alto has an A+ BBB rating and is BBB Accredited.
Potential Drawbacks
- BMO Alto's APY is 3.25%, lower than Zynlo Bank's offering.
- BMO Alto has no branches.
Zynlo Bank
Strengths
- Zynlo Bank provides a higher APY of 4.20% for its Tomorrow Savings Account.
- Zynlo Bank has a 4.0 App Store rating.
Potential Drawbacks
- Zynlo Bank is not BBB Accredited despite its A+ rating.
- Zynlo Bank requires a $10 minimum deposit to open an account.
→ As of November 12, 2025 BMO Alto offers an APY of 3.25% for its Savings Account, with a minimum balance of $0, compared to Zynlo Bank's 4.20% APY for its Tomorrow Savings Account, with a minimum balance of $0.01.
→ Zynlo Bank yields $95 more than BMO Alto on a $10,000 balance after one year. BMO Alto pays $325, while Zynlo Bank pays $420 - an APY advantage for Zynlo Bank.
Calculate Savings Growth for BMO Alto vs Zynlo Bank
BMO Alto - Savings Account
Total savings breakdown:
- Interest earned: $1,955.5 (9.80%)
- Total contributions: $13,000 (65.14%)
- Initial deposit: $5,000 (25.06%)
Your total balance
$19,955.50
Total balance: $19,955.5
Earnings: $1,955.5
Bank OverviewZynlo Bank - Tomorrow Savings Account
Total savings breakdown:
- Interest earned: $2,564.3 (12.47%)
- Total contributions: $13,000 (63.22%)
- Initial deposit: $5,000 (24.31%)
Your total balance
$20,564.30
Total balance: $20,564.3
Earnings: $2,564.3
Bank OverviewWith a $5,000 initial deposit and $13,000 in total contributions over 5 years, BMO Alto's total earnings would be $608.8 lower than Zynlo Bank's total earnings.
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
Compare BMO Alto's vs Zynlo Bank's Savings Accounts
| BMO Alto | Zynlo Bank | ||
|---|---|---|---|
| Product | Savings Account | vs | Tomorrow Savings Account |
| APY | 3.25% (as of 11/12/2025) | 4.20% (as of 11/12/2025) | |
| Bundled Account | No | No | |
| FDIC-insured | Yes | Yes | |
| Online Only | Yes | Yes | |
| Compound Frequency | Daily | Daily | |
| Minimum Deposit | $0 | $10 | |
| Minimum Balance for APY | $0 | $0.01 | |
| Maintenance Fee | $0 | $0 | |
| Direct Deposit Required | No | No | |
| App Store Rating | No | 4.0/5 | |
| Google Play Rating | No | 3.5/5 | |
| BBB Rating | A+ | A+ |
Comparative Historical APY Insights (Last 8 Months)
| BMO Alto | Zynlo Bank | ||
|---|---|---|---|
| Product | Savings Account | vs | Tomorrow Savings Account |
| Latest APY | 3.25 % | 4.20 % | |
| Trend | Falling | Sideways | |
| Slope (bps/mo) | -5.9 | -1.6 | |
| Rate Changes / Mo | 0.37 | 0.12 | |
| Days Since Last Change | 55 | 35 | |
| High (-8 m) | 3.70 % | 4.35 % | |
| Low (-8 m) | 3.25 % | 4.20 % | |
| Draw-down from High | -12.2 % | -3.4 % | |
| Volatility (CV) | 0.044 | 0.013 |
APY Insights Glossary
- Latest APY
- Most recent advertised annual-percentage yield.
- Trend
- Direction over the last 8 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 (-8 m)
- Highest APY in the last 242 days.
- Low (-8 m)
- Lowest APY in the last 242 days.
- Draw-down from High
- How far today sits below the 8-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.