All Side Hustle Ideas
Software and apps

Language learning app that teaches through songs

A consumer app that teaches languages through music and singing. The founder tested the idea with viral content before building a simple first version and runs it solo.

At a glance
Estimated by a classifier that read the source. The bar shows how sure it was.
Category
Software and apps
96% sure
x
Earns from
Subscriptions
92% sure
x
Startup cost (estimate)
$1k to $10kLow confidence
56% sure
x
Time it takes (estimate)
Part-timeLow confidence
49% sure
x
Where
Online
98% sure
x
Coding
Needs coding
97% sure
x
Source
Starter StoryBen, with Pat Walls. “I turned a viral idea into a $25K/month app”, November 4, 2026
In their words, not verified by usAbout $25K a month

  • Software and apps
    An indie health and fitness app. The founder credits a repeatable marketing playbook built on paid ads, rather than the specific app, for its growth.
    $1k to $10kOnline
    Starter Story, 2026
  • Software and apps
    An iOS fitness app built to solve the founder's own problem at the gym. The founder had never shipped code before and grew it with content and a personal brand.
    $100 to $1kOnline
    Starter Story, 2026
  • Software and apps
    A gym app whose founder treats product development like a science experiment, using A/B tests and feature validation to decide what to build.
    Online
    Starter Story, 2026
  • Software and apps
    An 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.
    Online
    Starter Story, 2026
  • Software and apps
    A marketing SaaS for indie developers. The founder shaped the product through a very large number of customer calls with the ideal customer.
    Online
    Starter Story, 2026
  • Software and apps
    The operator runs a few near-identical sites that each sell access to a niche database, such as investors, angels or journalists. The revenue model is not stated in the source and is likely paid access.
    Online
    Starter Story, 2026