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Head-to-head · Retirement Planning Software

MaxiFi vs driftcurve

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score MaxiFi #3 in Retirement Planning Software 9.2/10 Paid ✓ 5 of 5 features Visit MaxiFi
driftcurve #9 in Retirement Planning Software 8.5/10 Free plan Free plan✓ 5 of 5 features Visit driftcurve

MaxiFi leads on 0 checks, driftcurve on 1, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMaxiFi · 9.2/10
  • Free planonly driftcurve

MaxiFi scores higher on our rubric for retirement planning software: 9.2 against 8.5 out of 10; our editors rank them #3 and #9.

driftcurve offers free plan; MaxiFi doesn't. On tax modeling, MaxiFi gives you Detailed where driftcurve offers Basic.

MaxiFi is the better fit for multi-platform users wanting deep annual planning. driftcurve is the better fit for open-source users needing broad household modeling.

  • MaxiFi fits best

    Multi-platform users wanting deep annual planning

  • driftcurve fits best

    Open-source users needing broad household modeling

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature MaxiFi 9.2/10 Visit ↗ driftcurve 8.5/10 Visit ↗
At a glance
Editor score 9.2 8.5
Ranking #3 in Retirement Planning Software #9 in Retirement Planning Software
Best for Multi-platform users wanting deep annual planning Open-source users needing broad household modeling
Pricing model Paid Free
Starting price $109/yr Free
Free plan — ✓ (best)
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux, iOS, Android Web
Features MaxiFi 5/5 · driftcurve 5/5
Income projection ✓ ✓
Savings growth projection ✓ ✓
Withdrawal planning ✓ ✓
Social Security modeling ✓ ✓
Scenario analysis ✓ ✓
Specs
Tax modeling Detailed Basic
Account synchronization Not checked yet None
Our review
Pros
  • Projects lifetime income, spending, savings, withdrawals, taxes, and benefits
  • Optimizes Social Security timing and retirement-account withdrawals
  • Supports scenario analysis, Roth conversions, and Monte Carlo risk analysis
  • Models household assets, debt, pensions, and Social Security.
  • Includes Monte Carlo forecasts, spending guardrails, and scenario comparison.
  • Free under Apache License 2.0, with web, API, and self-hosted options.
Cons
  • There is no free plan
  • Living Standard Monte Carlo and Roth optimization require Premium
  • Annual Flight Check Service and expert support require Premium Plus
  • No account synchronization; household data is user-entered.
  • Local mode stores household data in the browser and runs forecasting locally.
  • Tax modeling is basic.
Our verdict

MaxiFi builds lifetime financial plans from household earnings, assets, retirement accounts, pensions, Social Security, taxes, housing costs, and other receipts and expenses. It is aimed at households and financial planners who want to…

Read the review →

Retirement planning often spans more than investment balances: households may need to account for debt, property, pensions, income, and different retirement dates. driftcurve is an open-source retirement planning engine for individuals and…

Read the review →
  1. MaxiFiRetirement Planning Software 9.2Paid
  2. driftcurveRetirement Planning Software 8.5Free plan

Strengths and trade-offs

  • MaxiFi — where it wins

    • Projects lifetime income, spending, savings, withdrawals, taxes, and benefits
    • Optimizes Social Security timing and retirement-account withdrawals
    • Supports scenario analysis, Roth conversions, and Monte Carlo risk analysis

    Where it doesn't

    • There is no free plan
    • Living Standard Monte Carlo and Roth optimization require Premium
    • Annual Flight Check Service and expert support require Premium Plus

  • driftcurve — where it wins

    • Models household assets, debt, pensions, and Social Security.
    • Includes Monte Carlo forecasts, spending guardrails, and scenario comparison.
    • Free under Apache License 2.0, with web, API, and self-hosted options.

    Where it doesn't

    • No account synchronization; household data is user-entered.
    • Local mode stores household data in the browser and runs forecasting locally.
    • Tax modeling is basic.

More comparisons

All retirement planning software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update