{"about":{"summary":"A directory of side businesses that real people say they run, each summarized in our words and linked to its public source.","notes":["Sources are public, first-person accounts: interviews, podcasts and community threads.","Cost, time and the other tags are machine estimates, each with a confidence score.","Income figures are the owner's own claim. We don't verify them."],"how_to_cite":"Link the idea page and its source. Call income figures the owner's unverified claim, and cost and time estimates."},"idea":{"slug":"audio-analysis-apps-for-iphone-742ed8","title":"Audio analysis apps for iPhone","summary":"Built iPhone apps like an oscilloscope and spectrum analyzer, used by sound engineers and teachers.","url":"https://allsidehustleideas.com/ideas/audio-analysis-apps-for-iphone-742ed8","markdown_url":"https://allsidehustleideas.com/ideas/audio-analysis-apps-for-iphone-742ed8.md","tags":{"category":{"value":"software","label":"Software and apps","confidence":0.94},"earns_from":{"value":"one-time","label":"One-time sales","confidence":0.94},"startup_cost_estimate":{"value":"100-1k","label":"$100 to $1k","confidence":0.43},"time_estimate":{"value":"hands-off","label":"Hands-off","confidence":0.94},"where":{"value":"online","label":"Online","confidence":0.97},"needs_coding":{"value":true,"confidence":0.99}},"owner_reported":null,"source":{"publication":"Hacker News","title":"Your best passive income? (2014)","url":"https://news.ycombinator.com/item?id=7094903","person":"eo34","host":null,"date":"2014-01-21"},"owner_site":"https://itunes.apple.com/us/app/oscope/id344345859?mt=8"}}