Comparison
Meridary vs Boldin
Two good tools that make opposite bets. Boldin maximizes depth; Meridary maximizes legibility and hands you a lifetime license. Here's how to choose.
Updated July 11, 2026
The core trade-off
Boldin is the deeper engine — more tax detail, per-state modeling, IRMAA, and automatic account aggregation, sold as a $144/year subscription. Its most-cited weakness is that all that depth makes the interface complex.
Meridary narrows depth on purpose so the answer stays legible, models federal tax plus a flat state rate, and sells a one-time lifetime license. It trades Boldin's breadth for a clearer path to a trustworthy “will my money last” answer.
Pick Boldin if…
You want the deepest tax modeling available to consumers, care about per-state deduction detail, and want your accounts to sync automatically — and a recurring subscription is fine for that.
Pick Meridary if…
You want a clear, correct answer without a subscription or a steep learning curve, you're comfortable entering your own accounts, and you'd rather own the tool for a one-time price than rent it every year.
Where they agree
Both run a Monte Carlo simulation to estimate the probability your plan lasts, both model Roth conversions and RMDs, and both are web apps. The difference is how much they ask of you to get there.
Meridary vs Boldin, at a glance
| Feature | Meridary | Boldin |
|---|---|---|
| Pricing model | One-time $149–$199, lifetime | $144/year subscription |
| Philosophy | Curated & legible | Maximally deep |
| Tax engine | Federal + flat state rate | Federal + per-state + IRMAA |
| Bank aggregation | No (by design) | Yes |
| Best for | A clear answer, owned outright | Hands-on, maximal control |
| Risk-reducer | 30-day money-back guarantee | 14-day trial |
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Frequently asked
- Is Boldin or Meridary better for beginners?
- Meridary is generally easier to start with — it's built to stay legible. Boldin is deeper but reviewers frequently note its complexity.
- Can I try both without paying?
- Boldin has a free tier and a 14-day trial of PlannerPlus. Meridary has no free tier or trial, but a 30-day money-back guarantee serves the same purpose.