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.
15 ideas
- Software and appsAn AI tool that lets architects and designers generate realistic home renders in seconds. Revenue stayed flat for years until a single product pivot changed the business.OnlineStarter Story, 2026
- Software and appsAn analytics SaaS built specifically for agencies as the customer, a niche most builders overlook.OnlineStarter Story, 2026
- Software and appsBuilt an app for creating orders and invoices on the road, syncing with local accounting software. A partner handles sales.OnlineHacker News, 2024
- Software and appsOffers automated recurring security scans of web apps with reports sent to team tools like Slack.OnlineHacker News, 2024
- Software and appsBuilt an algorithm using maritime trade data to trade options on shipping firms, also selling subscriptions to friends.OnlineHacker News, 2024
- Software and appsRuns a simulation service that lets traders backtest advanced options strategies, built from a background in processor simulation.Over $10kOnlineHacker News, 2022
- Software and appsGrew from blogging and a self-published book into building an email marketing tool for bloggers and creators.OnlineHacker News, 2022
- Software and appsBegan hosting game servers for friends, grew into renting servers including scientific computing to universities.Over $10kHands-offOnlineHacker News, 2022
- Software and appsStarted a niche credit card processor that has made money for many years.OnlineHacker News, 2022
- Software and appsBuilt a platform for scavenger hunts played on phones. Sells it to team-building event companies and also to individuals for birthdays and parties.OnlineHacker News, 2019
- Software and appsTurned an internal debugging and remote logging tool for iOS and Android into a subscription product for customers of all sizes.OnlineHacker News, 2019
- Software and appsBuilt a document management and review web app for a large company and gets a monthly maintenance fee, needing very little time each month.Hands-offOnlineHacker News, 2016
- Software and appsBuilt an add-on that lets customers get SSL installed quickly. Reselling certificates required upfront cash.Over $10kHands-offOnlineHacker News, 2014
- Software and appsRuns subscription services for tracking website traffic and ad conversions, solo and mostly hands-off.Hands-offOnlineHacker News, 2014
- Software and appsA platform for event organizers to host and live stream events.OnlineHacker News, 2014