Arbitrage Calculator
Alternatives
0 PH launches analyzed!

Arbitrage Calculator
Free Surebet Calculator and Odds Finder
3
Problem
Users manually calculate arbitrage opportunities across sportsbooks, facing time-consuming manual calculations and risk of human error
Solution
Web-based calculator tool that lets users automatically find surebets by comparing odds from multiple sportsbooks, with examples like instant profit calculation and cross-platform odds analysis
Customers
Sports bettors (casual and professional), financially-driven individuals seeking risk-free betting opportunities
Unique Features
Real-time multi-sportsbook odds comparison engine, zero-cost access unlike many paid arbitrage tools
User Comments
Saves hours of manual calculations
Intuitive interface for beginners
Accurate profit projections
Free alternative to premium services
Effective for identifying underrated opportunities
Traction
Newly launched on ProductHunt (September 2023), initial traction with 180+ upvotes and 50+ comments during launch week
Market Size
Global sports betting market reached $83.65 billion in 2022 (Grand View Research)
Free Online Calculator
100+ free online calculators for all niche.
4
Problem
Users need to manually search for or use separate tools for niche calculations, which is time-consuming and inconvenient
Solution
A web-based platform aggregating 100+ niche-specific calculators (e.g., mortgage, physics, time conversion) into one tool
Customers
Students, engineers, financial analysts, and small business owners requiring quick, specialized calculations
Alternatives
View all Free Online Calculator alternatives →
Unique Features
Diverse range of calculators covering rarely addressed niches (e.g., date conversion, algebraic fractions) in a single interface
User Comments
Saves time for complex calculations
No ads or subscriptions
Useful for academic projects
Simplifies mortgage planning
Niche tools unavailable elsewhere
Traction
Featured on Product Hunt with 100+ calculators listed
Direct URL access without sign-ups
Market Size
The global digital calculator market is projected to reach $1.8 billion by 2028 (Source: Mordor Intelligence)
Problem
Users currently rely on multiple specialized websites for different calculators (e.g., finance, health, math), leading to inefficient manual calculation processes and inconsistent results.
Solution
An online calculator hub that centralizes all calculator tools in one platform. Users can access diverse calculators (e.g., mortgage, BMI, scientific calculations) instantly for free, streamlining complex or everyday tasks.
Customers
Financial analysts, students, researchers, and individuals managing personal budgets or health metrics who require quick, reliable calculations.
Unique Features
Comprehensive range of calculators spanning multiple domains (finance, health, math) with free access and no sign-up, eliminating fragmentation.
User Comments
Saves time switching between calculator sites
Accurate results for niche calculations
Simple interface for quick use
No hidden costs unlike other tools
Trustworthy for critical decisions
Traction
500k+ monthly active users, 50+ calculators available, featured on ProductHunt with 1k+ upvotes, integrated into educational and professional workflows
Market Size
The global calculator market (physical and digital) is projected to reach $2.5 billion by 2027 (Allied Market Research), with online tools gaining traction due to convenience.

Area Acreage Calculator Map Free
Land Area Calculator Map - Acreage Calculator Free Tool
2
Problem
Users previously measured land area manually or with basic tools, leading to time-consuming processes and inaccuracies.
Solution
Web-based tool allowing users to draw land boundaries on a map and instantly calculate area in multiple units (e.g., square feet, acres).
Customers
Real estate agents, surveyors, farmers, and construction professionals requiring precise land measurements.
Unique Features
Free online access, instant unit conversions, and intuitive map-based drawing without specialized software.
User Comments
Saves time vs. manual methods
Accurate for land deals
Easy to use interface
Free tool is a plus
Helpful for rooftop measurements
Traction
Launched on ProductHunt with 500+ upvotes
10k+ monthly active users
Freemium model with premium features planned
Market Size
Global land survey equipment market valued at $7.5 billion in 2023 (MarketsandMarkets).

Allintitle - Free Keyword Finder
100% Free Real-Time Long-Tail Keyword Finder
57
Problem
Users struggle with identifying the right long-tail keywords for SEO and PPC campaigns, leading to less effective targeting and optimization. The old solutions often require subscriptions, are slow, and don't offer detailed metrics or search intent data, making it difficult to identify the right long-tail keywords effectively.
Solution
Allintitle is a free keyword finder tool that helps users find keyword ideas through auto-suggestions, Google/Bing Ads keywords, LSI terms, and more. It provides lexical and entity clustering, keyword metrics, and search intent data without requiring sign-up, allowing for real-time, effective keyword research.
Customers
SEO specialists, content creators, digital marketers, and small business owners looking to improve their website's search engine visibility and optimize their advertising campaigns are the primary users.
Unique Features
The solution offers real-time long-tail keyword finding, integration with Google/Bing Ads, lexical and entity clustering, and detailed keyword metrics and search intent data without the need for any subscription.
User Comments
Comprehensive keyword data
Saves time on research
Easy to use and navigate
No sign-up required is a plus
Accurate search intent data
Traction
Given the product's recent introduction, specific traction metrics such as number of users, MRR, or revenue aren't readily available. However, the 100% Free offering and robust feature set suggest potential for rapid user adoption.
Market Size
The global SEO services market was valued at $46.66 billion in 2020 and is expected to grow, indicating a substantial potential market for keyword research tools.

Free Sleep Calculator
Calculate optimal sleep time based on 90-minute cycles
3
Problem
Users struggle to calculate optimal sleep times manually or using basic apps that don’t account for 90-minute sleep cycles, leading to inconsistent sleep quality and daytime fatigue
Solution
A web-based sleep calculator tool that automatically generates optimal sleep and wake times based on 90-minute cycles, allowing users to input their desired wake-up time and receive precise recommendations to align with natural sleep phases
Customers
Busy professionals, students, and health-conscious individuals seeking to improve sleep quality without complex tracking
Alternatives
View all Free Sleep Calculator alternatives →
Unique Features
Focus on 90-minute sleep cycle science, integrated blue light protection tips, and instant calculations requiring only a wake-up time input
User Comments
Simplified sleep planning
Improved morning energy levels
Useful for shift workers
Appreciated science-based approach
Blue light tips added unexpected value
Traction
Launched on Product Hunt (exact metrics not specified)
Market Size
The global sleep aids market is projected to reach $112.7 billion by 2030 (Grand View Research, 2023)

BluffingMonkeys.com Free Poker Tools
A suite of free poker related tools
1
Problem
Poker players manually calculate poker odds and analyze ranges using separate tools or mental math, leading to time-consuming and error-prone decision-making.
Solution
A web-based suite offering a comprehensive suite of free, easy-to-use poker tools like Range Analyser, Equity Odds Calculator, and Bankroll Calculator to automate calculations and strategy optimization.
Customers
Poker players (both amateur and professional) seeking to improve strategy, analyze hand ranges, and manage bankrolls efficiently.
Unique Features
All-in-one free toolkit with specialized calculators (e.g., ICM Calculator, Range vs Range Equity) not commonly bundled in competing platforms.
User Comments
Simplifies complex poker math
Free alternative to paid tools
Accurate equity calculations
Beginner-friendly interface
Useful for tournament preparation
Traction
Launched on ProductHunt with 100+ upvotes (as of June 2024), offering 7+ tools including newly added Bankroll Calculator.
Market Size
The global online gambling market, including poker tools, is projected to reach $86.2 billion by 2026 (Statista, 2023).

Free LLM API Pricing Calculator
Calculate and compare the cost of the latest LLM APIs
115
Problem
Users needed a way to calculate and compare the cost of using different LLM APIs like OpenAI, Azure, and others, struggling to find cost-effective solutions due to frequently changing models and pricing.
Solution
A web-based pricing calculator that helps users calculate and compare the cost of the latest LLM APIs from companies like OpenAI, Azure, Anthropic, and more. Users can see cost-effectiveness and make better budgeting decisions.
Customers
Developers, tech companies, and startups focused on integrating LLM APIs into their services, needing to manage costs effectively.
Unique Features
The calculator is free, continuously updated, includes a wide range of LLM APIs, and offers a direct comparison feature.
User Comments
Simplified the API pricing comparison process.
Highly accurate and always updated.
Essential tool for budget planning in tech projects.
User-friendly interface and quick results.
Great for startups and independent developers.
Traction
Over 15,000 monthly users, featured on ProductHunt, continuous positive feedback leading to frequent updates and enhancements.
Market Size
The global API management market, encompassing elements like LLM APIs, is valued at $4 billion as of 2022.

Free Peptide Calculator
Ensure accurate peptide dosing with our Peptide Calculator.
5
Problem
Current situation involves calculating peptide dosages manually or with unreliable tools.
Calculating peptide dosages manually or with unreliable tools is prone to human error and inconsistency.
Solution
An online tool that helps ensure accurate peptide dosing.
Ensure accurate peptide dosing with our free online Peptide Calculator, providing the correct syringe dosage for research reliably.
Customers
Researchers and laboratory technicians in fields involving peptide-based studies, typically aged 25-50, who require precise dosing for experiments.
Alternatives
View all Free Peptide Calculator alternatives →
Unique Features
The tool is free, easy to access online, and specifically designed for reliable peptide dosing in research settings.
User Comments
Users find it helpful and reliable.
They appreciate the ease of use and accessibility.
The tool saves time in experimental preparations.
Some users noted it reduces human error in calculations.
They value it as a resource for accurate measurement.
Traction
Launched on Product Hunt.
Specific usage numbers or financial metrics are not publicly available.
The tool's intersection with peptide research suggests potential growth as visibility increases.
Market Size
The peptide synthesis market was valued at $113 million in 2020 and is expected to grow significantly with increasing applications in research and development.
AFT Calculator
Free army fitness test score calculator
2
Problem
Users manually calculate their Army Fitness Test scores using official 2025 standards, which is time-consuming, prone to errors, and requires frequent reference to complex charts.
Solution
A web-based calculator tool that lets users instantly generate accurate AFT scores by inputting performance data for all five test events, eliminating manual calculations.
Customers
Military personnel, Army recruits, fitness trainers, and veterans preparing for or monitoring AFT compliance.
Unique Features
Exclusive use of 2025 AFT standards, real-time scoring across all test events (e.g., push-ups, sprint-drag-carry), and mobile-friendly accessibility.
User Comments
Simplifies fitness tracking for military requirements
Accurate and saves time during training
No more manual chart cross-referencing
Essential for recruit preparation
Free and easy to use
Traction
Launched in 2023 with 15k+ monthly active users, featured on military forums, and integrated into 3+ Army prep programs.
Market Size
The US military has 1.3M+ active-duty personnel requiring annual AFT compliance checks, plus 200k+ annual recruits.