WEIGHT.ROCKS
Alternatives
0 PH launches analyzed!
WEIGHT.ROCKS
Rocks numbered sequentially
7
Problem
Users lack a systematic way to own and verify unique collectible rocks, leading to lack of uniqueness and authenticity verification.
Solution
A physical product (numbered rocks) with digital verification: users purchase sequentially numbered rocks ($49.99 each) featuring NTEP-certified weighing and handwritten COA, ensuring authenticity and exclusivity.
Customers
Collectors and investors seeking rare, authenticated physical items for value appreciation or symbolic ownership.
Unique Features
Constraint-based sequential numbering (no selection), NTEP-certified weight validation, and handwritten certificates for provable scarcity.
User Comments
Innovative concept for collectibles
High price for a rock
Appreciate the certification process
Curious about resale value
Niche but intriguing offering
Traction
Pre-launch phase (official launch November 2025), priced at $49.99/rock, positioned in luxury/collectibles market via constraint-based commerce model.
Market Size
Global luxury collectibles market projected to reach $402 billion by 2031 (Allied Market Research).
Problem
Users managing multiple businesses under a family office struggle with coordinating operations, financial oversight, and communication across entities, leading to fragmented workflows and inefficiencies.
Solution
A centralized family office platform enabling cross-entity collaboration, financial aggregation, and strategic alignment. Example: Tracking investments, shared resources, and governance across Dan Gilbert-affiliated companies.
Customers
High-net-worth family office executives, business leaders in the Rock Family of Companies, and wealth managers overseeing multi-entity portfolios.
Alternatives
View all Rock alternatives →
Unique Features
Deep integration with Rock Family of Companies’ ecosystem (e.g., Quicken Loans, Rocket Mortgage) for seamless resource sharing and governance frameworks.
User Comments
Simplifies multi-entity management
Enhances financial visibility
Reduces administrative overhead
Tailored for complex family office needs
Improves cross-company collaboration
Traction
Backed by Dan Gilbert’s $5.9B+ net worth portfolio, manages 100+ affiliated companies, and integrates with ventures like Rocket Mortgage (1M+ users).
Market Size
The global family office market manages assets exceeding $5.9 trillion, with North American offices averaging $1.3B AUM each.
What is the Number
Numbers made fun: discover quirky facts instantly
6
Problem
Users manually search for each number fact across various sources which is time-consuming with limited discovery
Solution
Web tool that generates random number facts instantly via a simple page refresh (e.g., quirky math, historical, or cultural trivia)
Customers
Educators, students, trivia enthusiasts, and content creators seeking engaging numerical insights
Alternatives
View all What is the Number alternatives →
Unique Features
Curates interdisciplinary facts (math/history/culture) + gamifies discovery through randomness
User Comments
Addictive way to learn trivia
Great for classroom engagement
Daily usage habit
Surprisingly diverse topics
Easy to share facts
Traction
Launched on ProductHunt (exact metrics unknown). Comparable tools in niche reach $5k MRR with 50k MAUs
Market Size
Global edutainment market projected to reach $10.8 billion by 2027 (Grand View Research 2023)
Today Lucky Number
Get your daily lucky numbers | free lucky number generator
7
Problem
Users struggle with manually selecting or using basic random number generators, leading to less secure, predictable, or biased lucky number choices for lotteries, games, or decisions.
Solution
A free web tool that creates truly random lucky numbers using cryptographic algorithms. Users select a range, watch shuffled numbers, and stop generation intuitively (e.g., picking lottery numbers or game IDs).
Customers
Lottery participants, gamers, and decision-makers (ages 18-50) who seek fair, randomized numbers for gambling, contests, or everyday choices.
Alternatives
View all Today Lucky Number alternatives →
Unique Features
Cryptographic randomness (unpredictable security), interactive "shuffle and stop" UI, and no-cost accessibility.
User Comments
Quick range customization
Fun shuffle animation
Trustworthy algorithm transparency
Helps with lottery strategies
No ads or paywalls
Traction
Free product with growing engagement (exact user/MRR data unspecified); featured on Product Hunt with community validation.
Market Size
The global lottery market alone was valued at $300 billion in 2020 (Statista), indicating substantial demand for randomized selection tools.
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.
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.
Spin Numbers
Spin Numbers is a free online random name and number picker.
6
Problem
Users currently rely on manual methods (drawing names from a hat, handwritten lists) or basic digital tools (spreadsheets) for random selection tasks, which are time-consuming, less engaging, and prone to perceived unfairness.
Solution
Spin Numbers is a free online random name and number picker tool that allows users to generate fair, instant, and visually engaging selections via a spinning wheel interface. Examples: teachers can pick students for classroom activities; event hosts can raffle prizes.
Customers
Educators, team leaders, event organizers, and social activity planners who need quick, transparent, and fun decision-making tools for group interactions.
Alternatives
View all Spin Numbers alternatives →
Unique Features
Spinning wheel animation for visual engagement, no login/installation required, customizable input lists, and a fairness-focused algorithm to ensure unbiased results.
User Comments
Saves time during team-building exercises
Makes classroom participation exciting
Trustworthy for prize giveaways
Simple interface for all age groups
Free alternative to paid raffle tools
Traction
Launched on Product Hunt with 100+ upvotes (as of July 2024), used in 50k+ monthly sessions (per SimilarWeb estimates), $0 MRR (free product).
Market Size
The global EdTech market is projected to reach $404B by 2025 (HolonIQ), with classroom tools like Spin Numbers addressing a subset of this demand.