
ProjectionLab
Boldin
CoastFIRE Hub
Empower.me
Coast FIRE Calc
Coast FIRE Planner
RetireGrowth
Calculate your path to financial independence

Waitlister.me
LaunchList
FastWaitlist
Viral Loops
Waitlisted
FreeWaitlists
waitlist.email
Quick and easy waitlist with built in referral.

Which is more popular?
Based on our record, Waitlist API seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | firenum.com | getwaitlist.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 1 - 9 employees · 2019 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Free FIRE calculator suite for planning early retirement. Calculate your FIRE number, Coast FIRE, Lean/Fat/Barista FIRE, project retirement dates, and track net worth with the Progress Tracker. Project your journey twoards FIRe on a dashboard. Model market crash scenarios and other events....
No description of Waitlist API yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Waitlist API yet.
Walkthroughs and reviews on video.
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Integrate Waitabit with Wix - Waitlist API
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Firenum and Waitlist API.
Firenum's answer
Firenum started as a single FIRE number calculator ("fire + num = your number") and grew into a full planner. The aim was to make FIRE planning free and private, and to say honestly when a fee-only advisor is worth paying for.
Firenum's answer
Firenum plans your finances month by month and runs entirely in your browser, with no account and no signup. Your plan is stored on your own device, not on our servers. You get Monte Carlo simulation, historical backtesting against every period since 1871, and six stress scenarios (market crash, lower returns, job loss, expense spike, high inflation, retiring earlier or later), all for free. It supports 9 currencies with local number formatting, including lakh/crore for rupees and 万/億 for yen.
Firenum's answer
Paid planners like ProjectionLab and Boldin keep features such as saving your plan or advanced drawdown modelling behind a subscription. Firenum includes all of it free, with no account. Choose it if you want serious FIRE planning without handing your financial details to a company, or if you plan in a currency other than USD. If you need detailed US tax modelling or Roth conversion planning, a paid tool may still suit you better.
Firenum's answer
People working towards financial independence and early retirement (FIRE), from those who've just learned the 4% rule to those checking a drawdown plan before quitting. Many users are outside the US and want a planner that isn't built around US assumptions.
Firenum's answer
Astro, Preact with Preact Signals, TypeScript, Chart.js, Web Workers (simulations run off the main thread), Cloudflare Workers for hosting, and Playwright for end-to-end tests. The backtesting uses Robert Shiller's historical S&P 500 data.
Firenum's answer
Individual FIRE planners worldwide (no accounts, no data collected)
Share your experience with using Firenum and Waitlist API. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Firenum since Feb 2026.
After that, we need to connect the landing page to a waitlist, in this case we will be using Waitlist. - Source: dev.to / almost 2 years ago
Ah got it I will check for getwaitlist.com Thanks! Source: over 3 years ago
Hi, our original sign ups that were on getwaitlist.com, received over 200k+ sign ups before it was deleted. Our Substack was deleted without any prior notification and it has been extremely difficult trying to import even a small portion... Source: over 3 years ago
When comparing Firenum and Waitlist API, you can also consider the following products.

The best retirement planning tool, FIRE calculator, and financial planning software built by, and for, the financial independence community.
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A waitlist helps you validate your product idea and build hype — Waitlister helps you create an effective waitlist.
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The #1 retirement planning tool online. Go beyond savings and investments with the best and most comprehensive financial planning software.
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Build a viral waitlist of early users before you launch.
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Short Description | Free FIRE calculator toolkit — Coast, Barista, Fat, and Lean FIRE numbers in seconds.
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Create a stunning waitlist page in seconds.
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