All Side Hustle Ideas

Software and apps side hustle ideas

A web app, SaaS, mobile app, browser extension, bot or API that people pay for or that earns from ads.

Startup cost
Under $100$100 to $1k$1k to $10kOver $10k
Time
Hands-offA few hours a weekPart-timeNear full-time
Where
OnlineIn personOnline and in person
Earns from
AdsAffiliateSubscriptionsOne-time salesService feesRentMarketplace cutSponsors and donations
Coding
No coding neededNeeds coding

64 ideas, page 2 of 2

  • Software and apps
    Cribbage game for iOS
    Built and released a cribbage card game for iPhone and iPad.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    Music notation training web app
    Built a site for practicing reading music notation while learning piano. It earns on its own without promotion.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    Online PC building tool with ads
    Runs a tool for assembling a PC online and earns from ads and affiliate programs.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    Paid iOS utility and study apps
    Sells a clipboard manager app and a study summaries app for students with in-app purchases.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    PHP ad server software
    Built and maintains an ad server script with a hosted SaaS version, sold to site owners.
    Online
    Hacker News, 2014
  • Software and apps
    Trading simulator app for iOS
    Built and sells an iOS app that simulates trading.
    Online
    Hacker News, 2014
  • Software and apps
    UK bank account validation web app and API
    Offers a tool and API to validate UK bank account details, and sells a data file of sort codes.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    Unicode text effects tool
    A free site for playing with Unicode text and ASCII art, earning small ad income.
    Hands-offOnline
    Hacker News, 2014
  • Software and apps
    WCF testing software products
    Built developer tools for testing WCF services, since expanded to several products and recommended by developers on Q&A sites.
    Online
    Hacker News, 2014
  • Software and apps
    Call filtering app for phones
    An app that filters unimportant calls and lets urgent ones from chosen contacts through. Sold as a paid app.
    Hands-offOnline
    Hacker News, 2011
  • Software and apps
    Captcha recognition service paid per solve
    Built a machine learning system that solves captchas, paid per captcha, so income continues after the build.
    Hands-offOnline
    Hacker News, 2011
  • Software and apps
    Cheap bulk SMS sending service
    Runs a text messaging service with low per-message pricing. Earns from message volume.
    Hands-offOnline
    Hacker News, 2011
  • Software and apps
    International proxy for viewing foreign ads
    A proxy service for advertisers who want to see international ads and geotargeted landing pages, sold at a flat monthly price after minimal promotion on forums.
    Online
    Hacker News, 2011
  • Software and apps
    Licensing system for Android app developers
    Built an anti-piracy licensing system for their own Android apps and then sold it to other developers as a subscription service.
    Hands-offOnline
    Hacker News, 2011
  • Software and apps
    Logic puzzle game on the iOS App Store
    Built a puzzle game for iPhone sold on the App Store.
    Hands-offOnline
    Hacker News, 2011
  • Software and apps
    Self-hosted social network software
    Sold software that lets people build their own social network, later releasing the code for free.
    Online
    Hacker News, 2011