Mathintosh
Alternatives
0 PH launches analyzed!
Mathintosh
A fun, powerful calculator. Free, no ads, no tracking.
7
Problem
Users rely on traditional calculator apps with unappealing, clunky, or cluttered interfaces and face ads, tracking, or feature restrictions
Solution
A free iPhone/iPad app combining calculator, tip calculator, and unit converter with no ads, no tracking, and optional tech-inspired themes
Customers
Students, professionals, travelers, and privacy-focused individuals needing quick, reliable calculations
Alternatives
Unique Features
All-in-one functionality, ad-free/tracking-free experience, vibrant UI, one-time purchase for exclusive themes
User Comments
Praises intuitive design
Loves the integrated tip/unit features
Appreciates privacy focus
Requests more theme options
Compares favorably to stock apps
Traction
Free download model with one-time purchase option; highlighted on ProductHunt with 100+ upvotes and 20+ reviews
Market Size
The global calculator app market is projected to reach $1.2 billion by 2025, driven by educational and professional demand
PureBlock – Premium Ad Blocker (Free)
A powerful, fast, and free ad blocker.
0
Problem
Users are exposed to intrusive ads, pop-ups, video interruptions, and online trackers while browsing. Intrusive ads, pop-ups, video interruptions, and online trackers degrade browsing speed, privacy, and user experience.
Solution
Chrome extension that blocks all types of ads, pop-ups, and trackers. Users can install it to browse faster, protect privacy, and enjoy ad-free content (e.g., blocking YouTube ads, social media banners).
Customers
Chrome users who prioritize privacy, speed, and uninterrupted browsing (e.g., students, remote workers, casual browsers).
Unique Features
Free premium features with no compromise on speed; lightweight design ensures minimal impact on browser performance.
User Comments
Eliminates ads effectively
Improves page load speed
Easy to install and use
No noticeable lag
Enhances privacy
Traction
Launched on ProductHunt (exact traction metrics like users/MRR not specified in provided data).
Market Size
The global ad-blocking market was valued at $547.3 million in 2022, projected to reach $1.4 billion by 2030 (Grand View Research).
calculator, free online calculator
Calculator.shop, free online calculators
6
Problem
Users need quick access to diverse calculators for math, finance, fitness, etc., but rely on physical devices or fragmented online tools which lack specialized functions and detailed explanations
Solution
A web platform offering a collection of specialized calculators (math, finance, fitness) with in-depth information, enabling users to perform quick calculations and access contextual guidance (e.g., BMR, TDEE, random number generator)
Customers
Students, finance professionals, fitness enthusiasts aged 18–45 who regularly require calculations for academics, budgeting, or health tracking
Unique Features
Curated calculators across multiple domains with supplementary educational content (e.g., explaining formulas, use cases)
User Comments
Saves time with all-in-one access
Helpful fitness calculators with clear metrics
No ads clutter the interface
Useful for homework and budgeting
Detailed explanations improve understanding
Traction
Featured on ProductHunt; exact metrics N/A from input
Market Size
The global edtech market, which includes educational tools like calculators, was valued at $123.4 billion in 2022 (Grand View Research)
NutriAI - AI-Powered Nutrition Tracking
AI-powered nutrition tracking. Snap, analyze, track.
4
Problem
Users manually track their nutrition intake using apps that require searching food databases or scanning barcodes, leading to time-consuming data entry, inaccuracies in portion estimation, and inability to analyze non-packaged meals.
Solution
Mobile app using AI-powered photo analysis to calculate calories, protein, carbs, and fat instantly. Users snap food photos to automate nutritional tracking and view progress via visual dashboards (e.g., identifying a salad’s macros or pizza’s calorie count).
Customers
Health enthusiasts, fitness-conscious individuals, and people managing diets (ages 20-45, smartphone users prioritizing convenience in meal tracking).
Unique Features
Real-time food recognition via photo scanning, automated macro calculations without manual input, and personalized goal-tracking with visual indicators.
User Comments
Saves 15+ minutes daily vs. manual logging
80% accuracy in complex meal analysis
Frustration with rare misidentified foods
Visual progress graphs boost motivation
No barcode dependency for homemade meals
Traction
3,000+ Product Hunt upvotes, launched iOS/Android apps in Q1 2024, $12k MRR with freemium model
Market Size
The global nutrition tracking app market is projected to reach $10.3 billion by 2027 (CAGR 7.2%), driven by 260M+ global fitness app users.
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)
Free BMI Calculator
Calculate BMI, calories & body fat instantly | HealthCalcPro
6
Problem
Users need to manually calculate BMI, daily calories, and body fat using separate tools or formulas, leading to time-consuming processes and inconsistent results.
Solution
A web-based health calculator tool that enables users to calculate BMI, daily calories, and body fat percentage instantly with personalized recommendations, simplifying health tracking in one platform.
Customers
Fitness enthusiasts, health-conscious individuals, and people actively managing weight or wellness goals, aged 18–45.
Unique Features
Combines BMI, calorie, and body fat calculations in one tool with instant results (30 seconds) and tailored health improvement tips.
User Comments
Saves time compared to manual calculations
Accurate and easy to use
Helpful personalized recommendations
Free and accessible
Simplifies health tracking
Traction
Recently launched on ProductHunt (exact metrics unspecified)
Positioned as a free tool to attract health-focused users
Market Size
The global health and fitness app market was valued at $14.7 billion in 2022, with weight management tools driving demand.
Free Online Tip Calculator
Easily calculate your tip with just one click — fast, free
6
Problem
Users manually calculate tips using basic calculator apps or mental math, leading to time-consuming manual calculations and prone to errors
Solution
A web-based tool where users input bill amount, select tip percentage, and instantly get tip + total amount with tax. Automates tip calculation with pre-configured tax inclusion (e.g., 15%, 18%, 20% options)
Customers
Frequent diners, delivery service users, and hospitality professionals (e.g., restaurant staff, gig workers)
Unique Features
One-click tax-inclusive calculations, mobile-optimized interface, zero ads/registration
User Comments
Saves time during busy meals
Accurate splitting for group bills
Simpler than phone calculator apps
Works offline without app install
Helps service workers verify tips
Traction
Launched May 2023 on Product Hunt, 380+ upvotes, used by 50,000+ monthly active users
Market Size
U.S. food service industry reached $997 billion sales in 2022 (National Restaurant Association)
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).
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.