Ally Bank vs. Betterment
Ally Bank's Savings Account pays 3.00% APY while Betterment's Cash Reserve pays 4.00% APY.
See how they compare on rate stability, mobile app ratings, and more below.
The Bottom Line
Who pays more interest on $10,000? Betterment pays $44 more than Ally Bank annually ($344 vs $300).
Choose Ally Bank if you want Zelle for quick transfers. Choose Betterment if getting the best rate matters most.
| Metric | Ally BankSavings Account Sep 4, 2026 | BettermentCash Reserve Sep 3, 2026 |
|---|---|---|
| APY | 3.00% | 3.25% - 4.00% |
Earns in a year | $5,000+$150 $10,000+$300 $25,000+$750 | $5,000+$172 $10,000+$344 $25,000+$859 |
Min. Deposit | $0 | $0 |
Snapshot view. Rates subject to change. | ||
| Features | FDIC InsuredNo MinimumsGreat iOS AppGreat Android AppZelle® SupportedDaily CompoundingRate Changes Often | FDIC InsuredNo MinimumsGreat iOS AppGreat Android App |
Prefer In-Person Banking?
Both of these institutions are online-only. If you need in-branch access, check out our list of savings accounts with brick-and-mortar locations.
Comparison Analysis
Comparing Ally Bank vs. Betterment
Executive Summary
Betterment offers a Cash Reserve account with a competitive APY of 4.00%, significantly higher than Ally Bank's offerings, which include both a Savings Account and a Money Market Account, both yielding 3.00%. Betterment's account requires a minimum deposit of $10 and has no direct deposit requirement, making it accessible for new customers. Additionally, it features a 3-month introductory rate of 4.00% for balances over $10. Both banks provide online-only services and do not charge maintenance fees. While Ally Bank provides solid options, Betterment's higher yield makes it the preferred choice for savers.
The analysis is based on current Banksparency database records
* This content is provided for informational purposes only; always verify details with the provider.
Why Ally Bank?
- Fast transfers via Zelle® (up to $5,000 a day)
Why Betterment?
- Higher potential APY (4.00% vs 3.00%) on all balances
Key Feature Differences
Better Returns at $10,000
BettermentBetterment's Cash Reserve earns more on smaller deposits (approx. $344 vs $300/yr).
Better Returns at $25,000
BettermentBetterment's Cash Reserve pulls ahead with larger amounts (approx. $859 vs $750/yr).
Better for Simplicity
BettermentBetterment's Cash Reserve offers 4.00% APY with no bundling, direct deposit requirement or caps.
Better Mobile App Experience
BettermentBetterment offers an iOS app rated 4.8 (vs. 4.7) and Android app rated 4.7 (vs. 4.4)
Shared Benefits
Over a 1-year period (factoring in a 3-month promo), Betterment's Cash Reserve pays $44 more interest on a $10,000 balance than Ally Bank's Savings Account.
*Betterment's calculation includes their 3-month introductory promotional rate and subsequent standard rate.
Non-sponsored link to official site
Non-sponsored link to official site
Top Market Contenders
Ally Bank vs. Betterment Savings Calculator
You earn $45.1 more with Betterment than Ally Bank on a $10,000 initial deposit for 1 year*.
*This calculation assumes that APYs remain unchanged for 1 year, and takes into account known promo rate periods, but does not factor in bonuses. You can see how often these banks have changed their rates in the Compare Savings Rates Over Time section below.
Ally Bank
Savings Account
Savings Breakdown
- Interest Earned+$300.00(2.9%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,300.00
Betterment
Cash Reserve
Savings Breakdown
- Interest Earned+$345.10(3.3%)
- Total Contributions$0
- Initial Deposit$10,000
Projected Balance
$10,345.10
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
Still at a large branch bank?
A typical branch-bank savings rate is 0.05% APY. On a $10,000 balance, the gap to these two banks is at least $295 a year in interest.
Both Ally Bank and Betterment advertise far more than that typical branch-bank rate.
| Feature | Ally Bank | Betterment |
|---|---|---|
| APY | 3.00% Observed: 9/4/2026 Stable over 90 days | 4.00% Range: 3.25% - 4.00% Observed: 9/3/2026 Stable over 90 days |
| Product Name | Savings Account | Cash Reserve |
| Minimum Deposit | $0 | $0 |
| Min. Balance for APY | $0 | $0 |
| Monthly Fee | $0 | $0 |
| Compound Frequency | Daily | N/A |
| In-Branch Access | No | No |
| Account Type | Online Only | Online Only |
| Physical Branches | 1 (UT) | Not reported |
| Direct Deposit Req. | None | None |
| Checking Bundle | No | No |
| Mobile Apps | ||
| FDIC or NCUA Insured | YesVerify FDIC | Yes |
| Zelle® Support | Available Limit: $5,000/dayBenchmark for online Zelle; high limits. | Not Supported |
| BBB Rating | A+ | A- |
| Next Steps | Visit SiteVerify at Ally Bank Non-sponsored link to official site | Visit SiteVerify at Betterment Non-sponsored link to official site |
Compare Savings Rates Over Time
Historical Performance
| Metric | Ally Bank | Betterment |
|---|---|---|
| Savings Account | Cash Reserve | |
Current APY | 3.00% | 4.00% |
Trend | Stable | Stable |
Speed of change | -0.03 | 0.02 |
Days Since Change | 93 | 129 |
7-Month High | 3.20% | 4.00% |
7-Month Low | 3.00% | 3.90% |
Changes per month | 0.27 | 0.13 |
Steadiness | 0.027 | 0.013 |
How to read these metrics(Click to expand)
Trends and speed
- Trend: The general direction of the rate over the analyzed period. Useful for seeing whether a bank is raising its rate or letting it slip.
- Speed of change: How fast the rate moves. A high positive number means they raise rates quickly. A reading of 0.10 is a tenth of a percentage point each month.
- Changes per month: How often the rate moves. A high number means it changes constantly; a low number means it holds.
Risk & Range
- High/Low: The absolute ceiling and floor of the rate during the 223-day window.
- Steadiness: How far the rate swings around its average. A lower score means a steadier, more predictable rate.
- Days Since Change: A high number, for example above 90, means the rate rarely moves. A low number means it changed recently.
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More Comparisons
Compare Ally Bank's APY of 3.00% with other banks
Compare Betterment's APY of 4.00% with other banks
| Bank Pair | Competitor APY | Min Deposit |
|---|---|---|
| Betterment vs American Express | 3.00% | $0 |
| Betterment vs Axos Bank | 4.21% | $0 |
| Betterment vs Barclays | 3.65% | $0 |
| Betterment vs Capital One | 3.50% | $0 |
| Betterment vs Chime | 3.75% | $0 |
| Betterment vs CIT Bank | 3.75% | $100 |
| Betterment vs EverBank | 3.90% | $0 |
| Betterment vs Marcus by Goldman Sachs | 3.40% | $0 |
| Betterment vs Newtek Bank | 4.20% | $100 |
| Betterment vs Openbank | 3.80% | $500 |
| Betterment vs Pibank | 4.10% | $0 |
| Betterment vs SoFi Bank | 4.00% | $0 |
| Betterment vs Synchrony Bank | 3.30% | $0 |
| Betterment vs Varo Bank | 3.75% | $0 |
| Betterment vs Wealthfront | 3.95% | $0 |