There is no single winner. ProjectionLab suits people who want a visual, hands-on scenario sandbox and a free entry tier. Boldin suits people who want account syncing and one long-term platform for retirement decisions. The right choice depends on which tradeoffs you value most. This comparison uses verifiable facts from each platform's site and independent user reviews, with a note on where PureLogicOS fits. ProjectionLab vs Boldin comes down to a visual sandbox versus synced accounts.
Table of Contents
- What is the core difference between ProjectionLab and Boldin?
- How do ProjectionLab and Boldin compare on scenario planning and projections?
- Which platform handles taxes and Roth conversions better?
- How do Social Security, RMDs, and real estate sales work in each tool?
- What do ProjectionLab and Boldin cost, and which free tiers exist?
- Which type of retiree should choose ProjectionLab, and which should choose Boldin?
- Where does PureLogicOS fit among these retirement planning tools?
- Key Takeaways
- References
What is the core difference between ProjectionLab and Boldin?
ProjectionLab is built around visual, manual scenario building. Its site lists "No link to your accounts" as a feature, so users enter data by hand, according to ProjectionLab. That manual approach gives you control over every input but requires more ongoing effort.
Boldin is positioned as a single long-term platform with direct account syncing and AI assistance, per the Marriage Kids and Money comparison. The platform aims to carry you from accumulation through withdrawal decisions without switching tools.
One long-time user of both summarized the difference as "ProjectionLab is more fun. Boldin gives me more confidence," according to a 2026 video comparison. The same creator frames them as different stages: ProjectionLab for scenario building, Boldin for retirement decision-making.
How do ProjectionLab and Boldin compare on scenario planning and projections?
A 2026 video comparison rated scenario planning between the two platforms "a Tie," according to Marriage Kids and Money. Both tools let you build alternate futures and compare outcomes, but they approach the task differently.
ProjectionLab offers Monte Carlo simulations, Sankey cash-flow diagrams, and historical backtesting, per ProjectionLab. The visual tools make it easier to see how money flows through the plan over time.
ProjectionLab lets the stock/bond split change over time via control points on a plot, which is useful for modeling target-date funds. In Boldin, an account has no stock/bond information and the projected growth rate can change only once, according to a Bogleheads forum comparison. Boldin offers four inflation settings, per the same comparison.
Which platform handles taxes and Roth conversions better?
It depends on which tax details matter to you. Boldin explains IRMAA, plots it, and shows the breakpoints, according to the Bogleheads forum comparison. However, Boldin's documentation states the Net Investment Income Tax and Alternative Minimum Tax are not included in projections.
Boldin models qualified charitable distributions as a tax deduction, while ProjectionLab treats them as a nontaxable distribution, which the poster states is correct. Boldin also "does not have a feature for federal or state tax-exempt interest," and dividends are always treated as reinvested, per the same Bogleheads forum comparison.
ProjectionLab's Premium tier adds tax estimation, tax optimization, and withdrawal strategies beyond the free tier, according to ProjectionLab. Tax modeling accuracy varies by platform, and users should verify outputs against their own tax situation. PureLogicOS connects a Roth conversion to taxes, Medicare IRMAA premiums, and future withdrawals in one plan, which is the type of integrated modeling that matters when evaluating conversion timing.
How do Social Security, RMDs, and real estate sales work in each tool?
ProjectionLab correctly follows RMD aggregation rules, pulling from both an IRA and 401k. Boldin draws RMDs solely from the IRA until exhausted, then switches to the 401k, which the poster states is incorrect, according to the Bogleheads forum comparison.
In Boldin, only one-time expenses entered in January will reduce the RMD, per the same poster. That timing sensitivity can change projected withdrawals in ways that are easy to miss.
Boldin treats real estate sales as commission-free with no tax consequences by default. ProjectionLab pays off the mortgage, subtracts agent commission, calculates capital gain from basis, and applies the home sale exclusion, according to the Bogleheads forum comparison. ProjectionLab also has an AUM fee entry on the account details page, while in Boldin you must reduce your return projection by the fee amount manually.
What do ProjectionLab and Boldin cost, and which free tiers exist?
ProjectionLab's site states it offers a free tier for basic retirement projections plus a Premium upgrade, with monthly, annual, or lifetime pricing options, according to ProjectionLab. The free tier is a genuine entry point for testing the tool before paying.
Boldin's pricing page should be checked directly for current figures. This comparison does not state a price that the research sources do not confirm, and prices change. Check each platform's pricing page on the date you evaluate it.
The Marriage Kids and Money blog calls ProjectionLab's free plan "generous" and recommends it for users who want a free tool or are beginning retirement planning. The same blog recommends Boldin for users who want one long-term platform, account syncing, or AI assistance.
Which type of retiree should choose ProjectionLab, and which should choose Boldin?
ProjectionLab fits visual learners, DIY investors, and people who enjoy experimenting with scenarios, per the Marriage Kids and Money recommendations. If you like seeing your plan as a flow diagram and adjusting inputs by hand, ProjectionLab rewards that style.
Boldin fits users who want direct account syncing, AI assistance, and advanced retirement, tax, and withdrawal planning in one place, according to the same Marriage Kids and Money comparison. The blog author's own pick is Boldin but calls ProjectionLab "still an excellent tool."
The 2026 video comparison offers a useful three-stage framing: a basic retirement calculator first, ProjectionLab for scenario building, then Boldin for retirement decision-making. That sequence helps you self-sort by where you are in planning.
Where does PureLogicOS fit among these retirement planning tools?
PureLogicOS is an educational planning and modeling tool that brings cash flow, investments, taxes, Social Security, and healthcare into one connected plan. It includes scenario comparison and Monte Carlo analysis for portfolio projections. The Basic plan is free, and the Pro Plan is $139 annually.
Unlike ProjectionLab's manual-entry approach, PureLogicOS emphasizes connected modeling across decisions rather than isolated calculators. A Roth conversion in PureLogicOS affects taxes, Medicare IRMAA premiums, and future withdrawals in the same plan, so you see the full chain of consequences.
The Income Plan is a $599 one-time retirement income strategy for Pro subscribers preparing to retire. PureLogicOS does not give investment advice and does not replace a licensed financial advisor.
Key Takeaways
- ProjectionLab lists "No link to your accounts" as a feature, so all data is entered by hand.
- A 2026 video comparison rated scenario planning between ProjectionLab and Boldin a tie.
- Boldin's documentation states NIIT and AMT are not included in its projections.
- ProjectionLab follows RMD aggregation rules across IRA and 401k; one Bogleheads poster reports Boldin does not.
- ProjectionLab offers a free tier plus a Premium upgrade with tax and withdrawal features.
- Boldin is recommended for users who want account syncing and one long-term platform.
- PureLogicOS Pro costs $139 annually and connects taxes, IRMAA, and withdrawals in a single plan.
References
- Boldin vs. ProjectionLab (2026): Which Retirement Planner Should You Choose?, published 2026-07-22
- ProjectionLab vs Boldin [Retirement planning tools], Bogleheads forum, April 2026
- ProjectionLab – Modern Financial & Retirement Planning Tools, accessed 2026
- Boldin vs ProjectionLab (2026): Which Retirement Planner, accessed 2026