Portfolio Performance Alternative: The Best Web Option in 2026

Portfolio Performance won over thousands of serious investors on one simple idea: track your portfolio with real accounting discipline, not the guesswork of a homemade spreadsheet. IRR, TTWROR, double-entry accounting: it does what most consumer tools quietly get wrong. But after a few years of daily use, the same complaint keeps coming up. It's a desktop application, tied to a single computer, with no web version and no mobile app. If you're looking for a Portfolio Performance alternative that keeps the same rigor while living in a browser, here's what you need to know, and why Anelior was built specifically to close that gap.

Why Portfolio Performance earned its reputation

Before getting into its limits, it's worth crediting what makes Portfolio Performance genuinely good. It's a free, open-source tool built on real double-entry accounting: every transaction generates a matching movement between a cash account and a securities account, never a bare "you own X shares" line. It's also one of the few consumer-grade tools that calculates TTWROR (Time-Weighted Rate of Return) and IRR (Internal Rate of Return) correctly, two metrics most brokers and tracking apps either skip entirely or get subtly wrong.

For an investor who actually wants to know whether their strategy is working, independent of how much they've deposited or withdrawn, Portfolio Performance has long been the most serious option out there. That's why so many active investors still recommend it despite its age and its utilitarian interface. Mathematical rigor doesn't go stale.

The real limit: no web, no mobile, no sharing

The tradeoff for that rigor: Portfolio Performance is a desktop application, built in Java, installed locally on a single machine. In practice, that creates a few real problems.

No access from your phone to check your portfolio on the go. No automatic sync across devices: switch computers and you have to remember to export, then reimport, the local file, and manage the risk of working off a stale copy yourself. And no simple way to share a view of your portfolio with anyone else, a partner, an advisor, or just to check in from wherever you happen to be.

For a lot of users, this limitation ends up mattering more than the quality of the math. A tool you can only open from one fixed machine wears thin fast, in a world where people check their bank balance and their investments from a phone between meetings. Rigor doesn't help much if it's locked inside a file you don't have on hand when you need it.

Anelior: the same principles, on the web

Anelior is built on exactly the same mathematical foundations as Portfolio Performance, but works from any browser. The accounting is strictly double-entry: every purchase generates a debit on the cash account and a credit on the securities account, never a hardcoded "quantity held" shortcut. Cost basis, TTWROR and IRR are calculated automatically for every position and for the portfolio as a whole, with the same precision standard: no shortcuts that would distort the result on irregular cash flows.

The real difference is access. No install, no local file to back up or sync between devices yourself. Your portfolio is there the moment you log in, from a computer or from your phone's browser.

Your data stays yours

One of Portfolio Performance's underrated strengths is that it never asks for your banking credentials. Unlike many online aggregators that require direct Open Banking access to your accounts, Portfolio Performance works in isolation: you import your statements, and the software never connects to your bank on your behalf. Anelior follows the same principle. You stay in control of what you share, without ever having to hand your banking credentials to a third party just to track your performance.

Migrating your history takes minutes, not hours

Re-entering years of transaction history by hand would be a dealbreaker, and it's exactly what keeps a lot of frustrated Portfolio Performance users from switching, even once its limits start to hurt. That's why Anelior offers a direct import from Portfolio Performance.

The process is straightforward. You export your history from Portfolio Performance, import it into Anelior, and your past transactions (buys, sells, dividends) are rebuilt automatically under the same double-entry logic. Cost basis, TTWROR and IRR are recalculated immediately across your entire history, with no manual re-entry line by line. You're not starting over. You're switching interfaces, not switching methods.

Try Anelior for free

You shouldn't have to choose between Portfolio Performance's rigor and the convenience of the web. Anelior keeps the same calculation principles, double-entry accounting, correct TTWROR and IRR, and makes them available from a browser, on desktop or mobile. Import your Portfolio Performance history and see your metrics recalculated in minutes, with a free trial and no commitment.