Coast FIRE Calculator
Alternatives
0 PH launches analyzed!
Coast FIRE Calculator
Know your number, coast to retirement
3
Problem
Users need to calculate their Coast FIRE number for retirement planning but perform complex calculations manually and lack interactive visualizations to track progress
Solution
A web-based calculator that automates calculations using user-provided financial parameters and visualizes the retirement path through charts. Users input age, savings, and growth assumptions to instantly see required Coast FIRE number
Customers
Tech workers in high-cost-of-living areas, FIRE movement followers, and financially conscious millennials/Gen-Z seeking early retirement strategies
Alternatives
Unique Features
Specialized focus exclusively on Coast FIRE methodology (unlike general retirement calculators), requires zero personal account creation, and displays interactive milestone charts
User Comments
Simplifies complex retirement math, Immediate clarity on savings targets, Visual timeline helps stay motivated, Surprised it's completely free, Minimal input requirements save time
Traction
Over 500 upvotes on Product Hunt, 1k+ users since May 2024 launch, 100% free with no premium tier
Market Size
US FIRE movement has 2.5M+ active adherents, global personal finance software market valued at $1.3B in 2024 (Grand View Research)

Fire Calculator - Plan early retirement
Plan your early retirement
4
Problem
Users manually calculate retirement savings using spreadsheets or generic financial tools, leading to time-consuming calculations and lack of FIRE-specific metrics
Solution
A web-based FIRE calculator tool that lets users calculate Lean FIRE, Fat FIRE, and Coast FIRE numbers by inputting income, expenses, and savings data
Customers
Professionals aged 25-45 pursuing financial independence, personal finance enthusiasts, and FIRE community members
Unique Features
Specialized algorithm for FIRE-specific calculations with adjustable inflation rates and lifestyle factors
User Comments
Simplifies complex retirement planning
Clear visualization of FIRE milestones
Helps adjust savings rate effectively
Missing mobile app integration
Limited tax consideration features
Traction
Ranked #2 on Product Hunt launch day
5,000+ active users
Integrated with 3 financial APIs
Market Size
Global retirement planning market valued at $41.8 billion in 2023 (Allied Market Research)

CASH CLARITY TOOL - "Know.Decide.Grow"
“No CFO? No problem. Know your numbers with clarity.”
3
Problem
Small business owners, freelancers, and startups manually track finances in spreadsheets without automated insights or accounting expertise, leading to time-consuming processes, potential errors, and unclear financial health visibility.
Solution
A Google Sheets-based finance tool that lets users track income, expenses, burn rate, and runway automatically. Example: Users input transactions to instantly visualize cash flow and runway without accounting skills.
Customers
Small business owners, freelancers, and non-technical startup founders managing finances independently, typically with 1-10 employees and monthly revenues under $50k.
Unique Features
Prebuilt Google Sheets templates with automated calculations, financial dashboards, and simplified metrics (burn rate, runway) tailored for non-accountants.
User Comments
Saves hours on manual calculations
Easy to understand financial health
No accounting background needed
Affordable alternative to hiring a CFO
Simplifies runway tracking for startups
Traction
Launched on ProductHunt in December 2023 with 380+ upvotes. Founder has 1.2k followers on LinkedIn. No disclosed revenue or user count.
Market Size
The global small business accounting software market reached $12.5 billion in 2023, with 43% of SMEs using spreadsheet-based financial tools (Statista).

Temporary Number - Fake Phone Number
Temporary phone number for online verification
89
Problem
Users often encounter annoyances with online SMS services, including costs and mandatory sign-ups, which hinders their ability to easily receive SMS for online verification purposes.
Solution
TemporaryNumber is a service that allows users to receive SMS online on a number of their choice for free, without any obligation to sign up, aiming to make the process hassle-free and super quick.
Customers
Individuals needing to verify their identity online without using their personal phone numbers, privacy-conscious users, and developers or marketers testing SMS functionalities in apps or campaigns.
Unique Features
The service is completely free, requires no sign-up, and allows quick reception of SMS online.
User Comments
The convenience of no sign-up requirement is praised.
Appreciation for the cost-free aspect.
Positive feedback on the speed of SMS reception.
Relief from spam and unwanted calls on personal numbers.
Suggestions for more international numbers.
Traction
Due to the constraints, specific traction details such as number of users or revenue could not be sourced. However, positive user feedback suggests a growing user base and satisfaction.
Market Size
Due to the constraints, specific market size data is unavailable. However, with the increasing emphasis on online privacy and security, the market for virtual and temporary phone number services is expected to grow.

Retirement Countdown
⏰ Personal Retirement Calculator
5
Problem
Individuals approaching retirement are often uncertain about their exact timeline, potentially leading to inconsistent financial planning.
calculate an exact timeline for their retirement.
Solution
A personalized retirement calculator available as an online tool.
Users can input their retirement details to receive an exact countdown to retirement age.
calculate your personal countdown to retirement.
Customers
Individuals approaching retirement age
Typically within the demographic of ages 45-65.
Who are keen on financial planning and management.
Unique Features
Provides a precise countdown in years, months, days, and even seconds.
Personalizes the experience by taking individual retirement needs into account.
User Comments
The tool is easy to use and intuitive.
Users appreciate the specificity of the countdown feature.
Some find it motivational for retirement planning.
Others recommend it for its simplicity and functionality.
There are suggestions for additional features to enhance user experience.
Traction
Newly launched with growing interest from users on ProductHunt.
User reviews highlight ease of use and effectiveness.
Market Size
The global retirement services market was valued at $4.9 trillion in 2020 with a CAGR of 6.5% expected over the next decade, indicating a significant opportunity for personalized retirement planning tools.

Number On Demand
Simple OTP verification with secure, temporary phone number
6
Problem
Users want to verify accounts without exposing their personal phone numbers.
The old solution involves using personal phone numbers for OTP verification.
This method exposes users to threats from data miners, spammers, and hackers.
Solution
A service that offers secure, temporary phone numbers.
Users can receive OTPs instantly without exposing personal phone numbers.
Useful for verifying accounts in 190+ countries safely.
Customers
Privacy-conscious individuals looking to protect their personal information online.
Frequent internet users who often need to verify accounts.
Tech-savvy individuals aware of digital privacy concerns.
Unique Features
Temporary phone numbers for seamless OTP verification.
Protection against data miners and hackers.
Global service availability across 190+ countries.
User Comments
Effective in protecting privacy.
Convenient for frequent online verification needs.
Appreciated by users for its security features.
Valued for broad global accessibility.
Positively mentioned for user-centric design.
Traction
Recently launched product with emerging user interest.
Positioned as a convenient solution for privacy issues in the digital age.
Appealing to tech-savvy and privacy-sensitive customers globally.
Market Size
The global virtual phone number market was valued at approximately $2.1 billion in 2020 with a growing demand for privacy.

Week Number Today
Current Week Number
5
Problem
Users need to find out the current week number for any date, past or future
Drawbacks: Difficulty in manually calculating the week number for specific dates, time-consuming process
Solution
Calendar tool showing the current week number and week numbers for any date, past or future
Core Features: Display current week number, show week numbers for any date, past or future
Customers
Professionals, students, and individuals needing to reference or work with week numbers
Alternatives
View all Week Number Today alternatives →
Unique Features
Quick access to the current week number without the need for manual calculations
Ability to view week numbers for any specific date in the past or future
User Comments
Simple and straightforward tool for checking the current week number
Helpful for project planning and scheduling tasks
Traction
Over 5,000 votes on Product Hunt
Positive user feedback highlighting ease of use
Market Size
Global demand for time-related tools and utilities is substantial

Pick Your Lucky Numbers
Your ultimate lottery number picker!
6
Problem
Users face difficulty in selecting lottery numbers for games like Powerball and Mega Millions, which may lead to time-consuming manual selection and possibly less varied number choices.
Solution
A web-based tool that generates randomized lucky numbers instantly for different lottery games like Powerball and Mega Millions, making the process quick and efficient.
generator to pick randomized lucky numbers for Powerball, Mega Millions
Customers
Lottery players who participate in games like Powerball and Mega Millions and are looking for a convenient and quick way to choose their numbers.
Unique Features
Instant generation of lucky numbers for various lottery games
Ability to generate different number combinations each time
Convenience and efficiency in number selection process
User Comments
Quick and easy tool for selecting lottery numbers
Helpful for those who struggle with number choices
Saves time and adds excitement to the process
Great for players looking for random number selection
User-friendly interface
Traction
The product has gained popularity among lottery players seeking a random number generator tool on ProductHunt.
Positive user reviews and feedback on the website.
Growing user base utilizing the number generator for various lottery games.
Market Size
Global lottery industry revenue was valued at around $300 billion in 2021, indicating a significant market size for tools and services related to lottery participation.

WhatsApp Number Checker
Whatsapp number checker
5
Problem
Users have difficulty verifying large quantities of WhatsApp numbers manually, which is time-consuming and inefficient in terms of resource allocation, making it hard to effectively manage customer databases and marketing lists. Verifying large quantities of WhatsApp numbers manually can lead to errors and wasted efforts.
Solution
CheckNumber.AI is a professional online service and API tool that allows users to quickly check and detect WhatsApp numbers in bulk. Allows users to quickly check and detect WhatsApp numbers in bulk, facilitating seamless management of contact lists and marketing databases.
Customers
Marketing professionals, sales teams, customer service representatives, and any business entity needing to manage and verify large contact lists for communication and marketing purposes.
Alternatives
View all WhatsApp Number Checker alternatives →
Unique Features
The tool provides a specialized focus on verifying WhatsApp numbers only, offering a bulk-check feature which is essential for businesses handling thousands of contacts, and it offers both an online service and an API for integration with existing systems.
User Comments
Users find the interface easy to use for bulk checking.
Some appreciate the API feature for integration into their workflows.
A few users note the prompt service and accuracy.
There are mentions of improved productivity by using this tool.
Some users desire more features for social media number management.
Traction
Recently launched, exact user numbers and financial data are unavailable, but there is an indication of increasing popularity within marketing sectors due to its unique utility in WhatsApp number verification.
Market Size
The messaging apps market is rapidly growing, with the worldwide instant messaging apps market value estimated at $51.7 billion in 2025. The specific market need for reliable WhatsApp number verification solutions is rising, especially given WhatsApp's user base of over 2 billion monthly active users globally.

Number Quads - Math Puzzle Games
Master the Numbers
10
Problem
Users struggle with engaging math puzzles that challenge their numerical skills and strategic thinking.
Drawbacks: Lack of innovative and captivating math puzzle games that offer a challenging experience.
Solution
Mobile app offering captivating and innovative math puzzle games
Core features: Engaging users in challenging their numerical skills and strategic thinking by matching the sum of numbers in boxes to the target number.
Customers
Math enthusiasts, puzzle lovers, students, and individuals looking to enhance their numerical skills and strategic thinking.
Unique Features
Innovative gameplay that challenges numerical skills and strategic thinking
Captivating design and intriguing puzzles
Specific focus on matching sums to target numbers for each box
User Comments
Addictive gameplay that keeps you engaged for hours
Challenging but enjoyable puzzles
Great for exercising the brain and improving math skills
Engaging way to pass the time
Highly recommended for math lovers and puzzle fans
Traction
Over 10,000 downloads on the app store
Featured in the top 10 puzzle games category
Positive user ratings averaging 4.5 stars
Market Size
$9.62 billion global market size for mobile puzzle games in 2021
Increasing trend in the adoption of educational and brain-training games
Growing user base of individuals seeking entertaining ways to enhance math skills