The best 401(k) apps in 2026: Empower for tracking what you’ve got, Guideline for self-employed or small business plans, and Capitalize if you’ve got old accounts scattered across former employers.

Here’s what changed. The 401(k) employee contribution limit is $24,500 in 2026, up from $23,500 last year (IRS announcement). Standard catch-up for workers 50 and older is still $7,500. But the big one: SECURE 2.0’s super catch-up provision is now active for its first full calendar year. If you’re between 60 and 63, you can contribute an extra $11,250 on top of the base limit ($35,750 total).

$35,750 in a single tax-advantaged account. In one year. That’s never been possible before.

And if you earned $150,000 or more in W-2 wages in 2025, all of your catch-up contributions must go into a Roth account. Pre-tax catch-up is gone for high earners under SECURE 2.0. Your plan administrator should already be routing it correctly, but worth confirming.

Why does this matter right now? Moody’s AI recession probability model hit 49% in early April. J.P. Morgan pegs it at 35%. Goldman Sachs at 25%. Nobody agrees on the odds, but everyone agrees the odds aren’t trivial. When markets get volatile, maximizing tax-sheltered contributions is one of the few things actually in your control. You’re buying more shares when prices dip. That’s math, not a prediction.

Meanwhile, if you’re in the IRA-deadline mindset or just topped off your HSA before April 15, the 401(k) deserves the same attention. Except unlike IRAs and HSAs, most people don’t pick their 401(k) provider. Your employer does. So the “best 401(k) app” question works differently: it’s about tracking, optimizing, and supplementing what your employer gives you.

What’s the SECURE 2.0 Super Catch-Up?

Workers ages 60 through 63 can now contribute up to $35,750 to their 401(k) in 2026. Here’s how that breaks down:

1. Base employee contribution: $24,500 (everyone under the annual compensation limit)
2. Standard catch-up (ages 50–59 and 64+): $7,500 additional, totaling $32,000
3. Super catch-up (ages 60–63 only): $11,250 additional, totaling $35,750
4. High-earner Roth requirement: If you made $150,000+ in W-2 income in 2025, all catch-up money (whether standard or super) must be Roth

The super catch-up exists because Congress recognized that people in their early 60s are in a sprint to the finish line. Many are 2–5 years from retirement with not enough saved. The extra room helps, though $11,250 versus $7,500 only matters if you can actually afford to defer that much. Which brings us back to the tools.

Quick Comparison: Best 401(k) Apps

App	What It Does	Cost	Best For
Empower	Tracks all retirement accounts, fee analysis, retirement planner	Free	Seeing your full 401(k) picture and finding hidden fees
Guideline	Full 401(k) plan provider for small businesses	$49/mo + $8/employee	Self-employed or small business owners who need a plan
Human Interest	401(k) plan provider for small/mid businesses	$120/mo + $6/employee	Small businesses wanting more fund options and payroll integration
Capitalize	Finds and rolls over old 401(k)s	Free	Anyone with 401(k)s at old employers collecting dust
Blooom (Voya)	Optimizes fund selection within existing 401(k)s	$120/yr or $395 one-time	People stuck with bad fund choices in their employer plan

The Apps, Compared

Empower — Best for Tracking Your 401(k)

Empower (formerly Personal Capital) does something no 401(k) provider does well: shows you the actual picture. Link your 401(k), IRA, HSA, and bank accounts and Empower pulls everything into one dashboard. Net worth, asset allocation, retirement readiness projections.

But the killer feature is the fee analyzer. I linked my old employer 401(k) and Empower flagged $1,400 in annual fees I was paying across four funds (expense ratios I’d never bothered to calculate because they were buried in plan documents). The tool showed me lower-cost alternatives available in the same plan. Took 20 minutes to log into my plan administrator’s site and swap funds. Saved me over a thousand dollars a year.

Empower is free for the tracking and analysis tools. They make money on their advisory services (0.49%–0.89% annually), which you don’t need. The free tier is what matters here. Link your accounts, see your fees, run the retirement planner, and ignore the upsell. I’ve used the free tier for two years without paying anything.

For the SECURE 2.0 super catch-up specifically: Empower won’t change your contribution elections. You have to do that through your employer’s plan administrator. But it will show you whether your current deferral rate will hit the $24,500 base or the $35,750 super catch-up limit by December. That visibility matters. A lot of people set their contribution percentage in January and never check whether it actually maxes out.

Good for: Anyone with an employer 401(k) who wants to understand fees, project retirement readiness, or see all accounts in one place. The best free tool for this. Period.

Skip if: You’re looking for a 401(k) plan itself. Empower tracks plans, it doesn’t provide them.

Guideline — Best for Self-Employed and Small Business 401(k)s

No employer 401(k)? Guideline fills the gap. They offer solo 401(k) plans for self-employed individuals and full 401(k) plans for small businesses. The solo plan lets you contribute as both employee and employer: up to $70,000 total in 2026 if you’re under 50 (the $24,500 employee deferral plus employer profit-sharing contributions up to 25% of compensation).

I helped a freelancer friend set up a Guideline solo 401(k) last year. The process took about a week: application, plan documents, bank linking. $49/month base fee with no per-participant charge on the solo plan. For a small business with employees, it’s $49/month plus $8 per employee.

The fund selection is Vanguard index funds. Low expense ratios, broad diversification. No proprietary funds with inflated fees. The admin dashboard handles compliance: annual testing, Form 5500 filing, IRS limits tracking. That compliance piece is why you pay a provider instead of opening a solo 401(k) at a brokerage yourself. One missed filing and the IRS penalties are ugly.

For the super catch-up: if you’re 60–63 and self-employed, a Guideline solo 401(k) lets you defer up to $35,750 as the employee portion, plus employer profit-sharing. That’s potentially the largest single-year tax-advantaged contribution available to anyone. It dwarfs what you can do with an IRA or HSA alone.

Good for: Freelancers, contractors, and small business owners who want a real 401(k) with institutional-quality funds and handled compliance.

Skip if: You have an employer 401(k) already. Guideline is a plan provider, not a supplement. And if your self-employment income is low or irregular, a SEP-IRA might be simpler.

Human Interest — Best for Small Businesses Wanting More Options

Human Interest competes directly with Guideline but targets slightly larger small businesses. $120/month base plus $6 per employee. Higher base cost, lower per-head cost. The math works better once you have 10+ employees.

The fund menu is broader than Guideline’s. Human Interest offers funds from Vanguard, Schwab, DFA, and others. They also handle automatic enrollment, which matters for SECURE 2.0 compliance. The law now requires new 401(k) plans established after December 29, 2022 to auto-enroll employees at 3%–10% of salary with annual 1% escalation up to at least 10%. Human Interest bakes this in.

Payroll integration connects with Gusto, ADP, Rippling, and others. Contributions flow automatically each pay period. For a business owner who doesn’t want to think about 401(k) administration after setup, this matters.

Good for: Small businesses with 10+ employees that need a cost-effective 401(k) with SECURE 2.0 auto-enrollment built in.

Skip if: Solo self-employed (Guideline’s solo plan is simpler and cheaper). Or if you’re an employee trying to track your own accounts. Human Interest is an employer-side tool.

Capitalize — Best for Finding and Rolling Over Old 401(k)s

The average American changes jobs 12 times during their career. A lot of those jobs had 401(k) plans, and a lot of those plans still have money sitting in them, often in whatever target-date fund was the default, charging fees to an account nobody’s watching.

Capitalize helps you find those old accounts and roll them into an IRA or your current employer’s plan. The service is free. They make money through referral partnerships with IRA providers (Fidelity, Betterment, etc.), but you’re not obligated to use their partners. They’ll help you roll into any IRA you choose.

I used Capitalize to locate an old 401(k) from a job I left in 2020. Had $8,200 sitting in a target-date fund with a 0.65% expense ratio. Rolled it into my Fidelity IRA in about two weeks. Capitalize handled the paperwork. Now that money is in FZROX at 0.00% instead of paying $53/year in fees to sit forgotten.

For the SECURE 2.0 context: if you’re 60–63 and consolidating old accounts before retirement, getting everything into fewer accounts makes tracking your super catch-up contributions simpler. Two accounts instead of five means less confusion about where you’re maxing out.

Good for: Anyone who’s changed jobs and suspects they have old 401(k)s floating around. The average unclaimed 401(k) balance is around $55,000. That’s real money earning nothing or paying fees to former employers’ plan administrators.

Skip if: You’ve already consolidated your retirement accounts or have only worked one job.

Blooom (Voya) — Best for Optimizing a Bad Employer Plan

Some employer 401(k) plans have mediocre fund options and high expense ratios. You can’t add funds that aren’t in the menu, but you can find the least-bad combination. That’s what Blooom (now part of Voya Financial) does: analyzes your existing plan and tells you how to allocate given what you’re actually stuck with.

$120/year for ongoing management or $395 for a one-time analysis and rebalance. The ongoing plan monitors your 401(k) quarterly and rebalances as needed. The one-time option gives you a recommendation that you implement yourself.

I’d consider Blooom if Empower’s free fee analyzer isn’t enough. If you can see the problem but don’t know how to fix it within your plan’s limited menu, Blooom’s recommendations account for expense ratios, overlap between funds, and your target asset allocation. For someone paying 0.80% in blended expense ratios who could get to 0.30% with better fund selection within the same plan, the $120 annual fee pays for itself several times over.

Good for: Employees in 401(k) plans with confusing or expensive fund lineups who want specific guidance on what to pick.

Skip if: Your plan offers low-cost index funds and you know how to build an allocation. Or if Empower’s free analysis already showed you what to change.

How to Actually Hit the 2026 Limit

Knowing the limit is $24,500 (or $35,750 for the super catch-up) is step one. Actually hitting it requires math:

Take your target contribution — say $24,500. Divide by your remaining pay periods this year. If you’re paid biweekly and have 19 pay periods left, that’s $1,289 per paycheck. Adjust your deferral percentage through your employer’s plan administrator to match.

If you’re chasing the $35,750 super catch-up, that’s $1,882 per biweekly paycheck for the rest of the year. That’s steep. If you started in January, it’s $1,375 across 26 pay periods, which is more manageable. This is why checking early matters.

Your employer’s plan portal handles the deferral election. Empower won’t do it for you. Guideline and Human Interest handle it automatically for their plans. But most people in big-company plans need to log into Fidelity NetBenefits, Schwab Retirement, Vanguard, or whatever administrator their employer uses and change the number themselves.

How to Choose Based on Your Situation

You have an employer 401(k) and want to understand it better: Empower. Free. Link the account, check your fees, run the retirement planner. Takes 15 minutes.

Self-employed, no employer plan, and want the highest possible contribution limit: Guideline solo 401(k). If you’re 60–63, you can defer $35,750 as the employee plus employer profit-sharing. Nothing else comes close for tax-advantaged savings.

You’ve changed jobs and probably have old 401(k)s somewhere: Capitalize. Find them, roll them over, stop paying fees on forgotten accounts.

Your employer plan has bad funds and you don’t know what to pick: Blooom for specific recommendations within your plan’s menu. Or start with Empower’s free fee analyzer.

Already recession-proofing your budget and wondering where the 401(k) fits: It fits at the top. Employer match is free money. Contribute at least enough to get the full match before putting dollars anywhere else. After that, max the 401(k) before taxable accounts, especially in volatile markets where tax-sheltered compounding matters more.

What No App Can Fix

Your 401(k) app can track your balance, optimize your funds, and show you projections. It can’t make the deferral election for you. It can’t decide whether Roth or traditional makes sense for your tax bracket. It can’t tell you whether the super catch-up is worth the cash-flow squeeze if you’re 61 and still carrying a mortgage.

Those decisions are yours. And they’re worth getting right. $35,750 in tax-advantaged space is a lot of room. If you’re in the super catch-up window (60–63), this is a four-year opportunity that doesn’t come back. At 64, you’re back to the standard $7,500 catch-up.

The apps help you see clearly. The contributions are the part that actually builds the retirement account.

If recession odds are making you nervous, remember: people who kept contributing to their 401(k) through 2008–2009 and 2020 came out well ahead of those who paused. Market drops plus steady contributions equals more shares at lower prices. That’s just how it works.

Pick your tools. Set your deferral. Check it quarterly. The $24,500 limit — or $35,750 if you’re in the window — isn’t going to max itself out.

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Compared April 2026. Contribution limits, SECURE 2.0 provisions, and platform features change. Verify current IRS limits and plan terms before adjusting contributions.