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Retirology

Pralana alternative

Retirology vs. Pralana

Pralana has a loyal following among detail-oriented planners: an exhaustive model available as an Excel workbook (Gold) or a web app (Online). Retirology aims for much of the same depth in a guided desktop app you buy once.

Updated October 2026

The short version

RetirologyPralana
Price$19+ once; every update freeGold: $129 first year, then $99/year (from Oct 2026). Online: annual subscription
10 years of use$19–$65 totalAbout $1,020
Where it runsDesktop app — macOS, Windows, LinuxGold: Microsoft Excel. Online: web app
AnalysesDeterministic, Monte Carlo (normal + historical), stress testsDeterministic, Monte Carlo and historical
Roth conversionsLadder modes incl. ACA-cap fill; per-conversion 5-year clockControlled by tax bracket, IRMAA or LTCG bracket
ACA subsidiesYesYes
State taxesAll 50 states + DC, 2026 retirement exclusions by ageDetailed federal and state taxes
Learning curveTwo-minute setup wizard; plain-English explainersExtensive manual; built for power users

Pralana details are from its website and October 2026 subscription announcement. Check pralanaretirementcalculator.com for current terms.

Where Retirology is different

  • Still a one-time purchase. $19+ once, with every future version free.
  • No spreadsheet required. A native app with a setup wizard, charts, a cash-flow diagram and explanations in plain English.
  • Optimize my plan. Instead of hand-tuning settings, let the app test combinations of Roth ladder, ACA target and SEPP and show the after-tax result of each change.
  • Private by design. Like Gold, your data stays on your computer — without needing Excel.

When Pralana is the better choice

  • You want to control every assumption and are happy to learn a large model.
  • You live in Excel and want to inspect or extend the formulas.

Common questions

How much does Pralana cost now?

Pralana announced that from October 1, 2026, Pralana Gold is sold as an annual subscription: $129 for the first year for new customers, then $99 a year. Pralana Online is sold as an annual subscription too. Check Pralana's site for current terms.

Do I need Excel for Retirology?

No. Retirology is a standalone app for macOS, Windows and Linux.

Is Retirology as detailed as Pralana?

Pralana exposes more knobs. Retirology covers the main US retirement-tax moves — Roth ladders, ACA subsidies, SEPP, Rule of 55, IRMAA, all 51 state tax codes, survivor years — with guided defaults and plain-English explanations, and an optimizer to try combinations for you.

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