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Head-to-head · Retirement Planning Software

The Complete Retirement Planner vs Flexible Retirement Planner

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score The Complete Retirement Planner #5 in Retirement Planning Software 7.6/10 From $89.99 ✓ 5 of 5 features Visit The Planner
Flexible Retirement Planner #6 in Retirement Planning Software —/10 Free plan Free plan✓ 5 of 5 features Visit site

The Complete Retirement Planner leads on 0 checks, Flexible Retirement Planner 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 scoreThe Complete Retirement Planner · 7.6/10
  • Free planonly Flexible Retirement Planner

Our editors rank The Complete Retirement Planner at #5 and Flexible Retirement Planner at #6 for retirement planning software; Flexible Retirement Planner has no rubric score yet (facts researched, not yet scored), so the checks below decide.

Flexible Retirement Planner offers free plan; The Complete Retirement Planner doesn't.

The Complete Retirement Planner is the better fit for U.S. households wanting a low-cost one-time purchase. Flexible Retirement Planner is the better fit for users wanting detailed free Monte Carlo planning.

  • The Complete Retirement Planner fits best

    U.S. households wanting a low-cost one-time purchase

  • Flexible Retirement Planner fits best

    Users wanting detailed free Monte Carlo planning

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature The Complete Retirement Planner 7.6/10 Visit ↗ Flexible Retirement Planner —/10 Visit ↗
At a glance
Editor score 7.6 —
Ranking #5 in Retirement Planning Software #6 in Retirement Planning Software
Best for U.S. households wanting a low-cost one-time purchase Users wanting detailed free Monte Carlo planning
Pricing model Paid Free
Starting price Not published Not published
Free plan — ✓ (best)
Free trial — —
Deployment Desktop Cloud, Desktop
Platforms Windows, macOS Web, Windows, macOS, Linux
Features The Complete Retirement Planner 5/5 · Flexible Retirement Planner 5/5
Income projection ✓ ✓
Savings growth projection ✓ ✓
Withdrawal planning ✓ ✓
Social Security modeling ✓ ✓
Scenario analysis ✓ ✓
Specs
Tax modeling Detailed Detailed
Account synchronization None Not published
Our review
Pros
  • Projects income, expenses, savings, taxes, and distributions year by year
  • Models Social Security, RMDs, Roth conversions, Medicare, and healthcare costs
  • Supports what-if scenarios and sequence-of-returns testing
  • Models 10,000 life cycles for retirement simulations
  • Includes Roth conversions, RMDs, and withdrawal-order controls
  • Runs on web, Windows, macOS, and Linux
Cons
  • Requires paid Microsoft Excel 2016 or later
  • Uses user-entered financial information rather than account syncing
  • Available as a downloadable Excel tool, not a cloud-based planner
  • Limited to personal, non-commercial or educational use
  • No verified integrations or account synchronization
  • Requires detailed year-by-year financial inputs
Our verdict

The Complete Retirement Planner is downloadable Microsoft Excel software for households planning before or during retirement. It builds year-by-year projections from user-entered financial information, covering income, expenses, savings,…

Read the review →

Flexible Retirement Planner models savings accumulation and retirement spending through Monte Carlo simulations, making it suited to individuals and educators who want to examine how changing financial assumptions may affect retirement…

Read the review →
  1. The Complete Retirement PlannerRetirement Planning Software 7.6From $89.99
  2. Flexible Retirement PlannerRetirement Planning Software —Free plan

Strengths and trade-offs

  • The Complete Retirement Planner — where it wins

    • Projects income, expenses, savings, taxes, and distributions year by year
    • Models Social Security, RMDs, Roth conversions, Medicare, and healthcare costs
    • Supports what-if scenarios and sequence-of-returns testing

    Where it doesn't

    • Requires paid Microsoft Excel 2016 or later
    • Uses user-entered financial information rather than account syncing
    • Available as a downloadable Excel tool, not a cloud-based planner
  • Flexible Retirement Planner — where it wins

    • Models 10,000 life cycles for retirement simulations
    • Includes Roth conversions, RMDs, and withdrawal-order controls
    • Runs on web, Windows, macOS, and Linux

    Where it doesn't

    • Limited to personal, non-commercial or educational use
    • No verified integrations or account synchronization
    • Requires detailed year-by-year financial inputs
  • The Complete Retirement Planner7.6/10 · From $89.99

    A one-time Excel planner for year-by-year retirement, tax, and Social Security modeling.

    Visit The PlannerFull verdict →
  • Flexible Retirement Planner—/10 · Free plan

    A free retirement planner with detailed inputs, withdrawal controls, and 10,000 modeled life cycles.

    Visit siteFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026