CalculatoriOS / AndroidWeb
All-in-1 Converter Calculator
Every unit, currency, and conversion in one offline app — now on iOS, Android, and web.
All apps & tools
Every app focuses on doing one thing well. Filter to find what you need.
Business TooliOS / AndroidWeb
Bill Organizer and Tracker
Never miss a bill again — simple reminders and monthly overviews.
CalculatoriOS / AndroidWeb
Currency Converter Worldwide
Quick, reliable currency conversion for travelers and global businesses — now on iOS, Android, and web.
Business TooliOS / AndroidWeb
Instant Quote Maker Template
Create professional quotes and invoices in seconds.
Business TooliOS / Android
Mileage & Tax Expense Tracker
Track every deductible mile and expense for tax season — on iOS and Android.
GameiOS / AndroidWeb
Mind Skills Arcade
118 short brain games for memory, focus, logic and speed — offline on iPhone and Android, and on the web.
Business TooliOS / AndroidWeb
Monthly Income Booster
Practical ways to grow side income — on iOS, Android, and the web.
CalculatoriOS / AndroidWeb
Smart Roofing Calculator
120+ roofing calculators — plus deck, fence, drywall, insulation, tile, sod and gravel tools in v1.7.
ContentWeb
Bullpen Edge
Daily MLB win probabilities and projected scores, graded in public.
ContentWeb
GridironProjector NFL
Projected scores, margins, totals and win probability for every NFL game, graded in public.
ContentWeb
HoopVantage
NBA game projections, power ratings and advanced stats.
CalculatorWeb
Smart Roofing Calculator (Web)
Roofing estimates from any browser — no install required.
GameAndroidWeb
Prism Riot
The colour card game, rioted — 65 free modes in your browser and on Android, with the iPhone app in App Store review.
GameiOS / AndroidWeb
Just Like Games
Find games like the ones you love — iOS, Android and web.
Business ToolWeb
Monthly Income Booster (Web)
Web tools and ideas to grow extra monthly income.
Business ToolWeb
Express Biz Tools
Free inventory, invoicing and business calculators for small businesses.
Business ToolWeb
Instant Sheet Templates
Business templates and free generators that export a clean PDF.
Business ToolAndroidWeb
WebP Convert to JPG
Convert WebP images to JPG instantly — free and private.
ContentWeb
Fur Reviews
Side-by-side pet product comparisons, without fake scores.
CalculatorAndroidWeb
Smart Fencing Calculator
Estimate fence materials, posts, and cost in seconds — on Android or the web.
ContentWeb
ColumbiaSCInsider
Columbia, SC local guide and business directory.
CalculatorWeb
Grams to Cup Converter
Quick kitchen conversions — grams, cups, ounces, tablespoons.
CalculatorAndroidWeb
Smart Decking Calculator
Estimate deck size, materials, and cost in seconds — on Android or the web.
CalculatorAndroid
Smart Drywall Calculator
Estimate drywall sheets, mud, tape, and screws in seconds — free on Android.
CalculatorAndroidWeb
Smart Insulation Calculator
R-value, batts, blown-in bags, spray foam & real cost data — free on Android and the web.
CalculatorAndroidWeb
Smart Tile Calculator
Tile quantity, grout, thinset, waste and cost — free on Android and the web.
CalculatorAndroid
Sod Calculator: Turf & Grass
Sod, topsoil, seed, fertilizer and artificial turf — 34 lawn calculators, free on Android and offline.
CalculatorAndroidWeb
Gravel & Stone Calculator
Tons, cubic yards and truckloads for any stone — 34 free gravel calculators on Android and the web.
GameiOS / AndroidWeb
Geography Quiz Arcade
122 geography games: flag quiz, world map quiz, capitals and the 50 states. Free on iPhone, Android and the web.
Business ToolWeb
SofaDeck
Turn your phone into a button deck and voice remote for your Windows PC or Mac — no phone app to install.
ContentWeb
Trips for Grown-Ups
Itineraries and a free trip planner for grown-up travellers: rooftops, supper clubs and live music, not the club scene.
Business ToolWeb
Pixel Porter for Chrome
Right-click any image in Chrome and save it as JPG, PNG or WebP.
Business ToolWeb
Construction Calculator API
The roofing and construction formulas behind our calculator sites, as a JSON REST API.
CalculatorWeb
Simple Mortgage Planning
Free mortgage, affordability, refinance and PMI calculators that show the math.
ContentWeb
Screw Fitment Database
Find exactly what a small metric screw fits — from M1.2 to M6.
ContentWeb
Fit The Forecast
Outfit ideas that match today's weather and your style.
For Shopify merchants
Shopify apps
Tierwise quantity breaks and order limits, Bulk Edit Everything with preview and undo, and Shelfport collection CSV import/export. All three are on the Shopify App Store with a free plan.
See the Shopify apps →Guides to choosing an app
How these apps work
Most products here come as a pair: a free website you can use in any browser and a mobile app with the same tools for when you are on a job site, in a kitchen or away from a laptop. The calculators give the same answers in both, because they share the same formulas, and the websites show the working so you can check it.
The apps are free to download and supported by ads. Where an app offers an upgrade, it is a one-time purchase rather than a subscription.
Use the filters above to narrow the list to calculators, business tools, games or content sites, and open any card for the store links, the matching website and the privacy details for that app. Questions or a tool you would like us to build? Contact support.