# 10 kinds of apps that earn well but a solo developer can't copy

By Mika Heinonen (Indie iOS developer and maker of Fledly). Published 2026-10-27, updated 2026-10-27.
Canonical: https://fledly.app/blog/app-ideas-solo-developers-cant-copy/

> Young apps in these ten groups are on the Top Grossing charts right now, and they look like easy targets. The money comes from content rights, network effects, licences or hardware, not from the app. Here is how to spot them.

**Key takeaways**

- On October 26, 2026, **167 young earning apps** in the US, UK, Canada, Australia, Germany and Finland belonged to ten kinds of business that a solo developer can't realistically copy.
- The biggest groups are **dating and social rooms (29 apps)**, **licensed content (28)** and **short-drama streaming (20)**.
- In each case the moat is something outside the code: **content rights, a crowd of users, a licence, a device, a brand or a lot of funding**.
- Ask one question before you copy an earning app: **"If I shipped an identical app tomorrow, what would I still be missing?"** If the answer isn't "users who find it", skip it.

When you go through the Top Grossing charts looking for new apps that already earn, a strange pattern shows up. Many of the youngest, fastest-rising apps look simple: a video player, a chat app, a remote control, a single-purpose camera tool. A good developer could rebuild most of them in a few weeks.

That is exactly the trap. If an app is simple and still earns, the reason it earns is usually somewhere else. In Fledly's idea scoring, these concepts get a buildability factor of zero, however strong their revenue and growth look. Here are the ten groups we filtered out on October 26, 2026, and what each one is really selling.

*Figure: Young earning apps (US under 24 months; UK, Canada, Australia, Germany and Finland under 12 months) in concepts a solo developer can't copy. Top Grossing charts, October 26, 2026.*

## 1. Dating and social rooms (29 apps)

Voice rooms, video chat with strangers, dating and "meet new people" apps are the biggest group. They earn through coins, gifts and subscriptions, and their revenue can be enormous for their age.

**What you'd be missing:** other people. A social app with no users is empty, and the first users only stay if someone interesting is already there. Many of these apps also run large trust-and-safety and moderation operations, and buy installs at scale to keep the rooms full. That is a funding problem, not a coding problem.

## 2. Licensed content (28 apps)

Live sports, TV channels, film libraries, music catalogues, branded audiobooks, comics and other content that someone owns.

**What you'd be missing:** the rights. People pay for the football match or the series, not for the player around it. Licences are expensive, exclusive and negotiated by companies, and Apple's guidelines don't allow apps that use protected content without permission.

**A solo-sized angle:** tools *around* content that don't need a licence, such as trackers, watchlists and reminders, can work. Check that their search terms aren't simply the content owner's brand name.

## 3. Short-drama streaming (20 apps)

Vertical micro-series with one-minute episodes, sold episode by episode with coins or a weekly pass. Twenty of them were young enough to make our list.

**What you'd be missing:** a production studio and an ad budget. The leading apps commission or license large libraries of series and buy much of their audience with social video advertising. The player app is the cheap part.

## 4. Local marketplaces and communities (14 apps)

Second-hand marketplaces, local services, neighbourhood groups, event and ticket exchanges.

**What you'd be missing:** both sides of the market. Buyers come where the sellers are, and sellers list where the buyers are. Winning a single city takes local marketing and support that a solo developer rarely has time for.

## 5. Funded platforms (13 apps)

Young apps from venture-backed companies: new AI assistants, fintech, mobility and "super app" products. They reach the charts quickly because they launch with a team, a marketing budget and often existing press attention.

**What you'd be missing:** the company. Fledly already removes the largest tech publishers from its young-app lists, but well-funded start-ups remain. Their presence tells you a market is attractive, not that it's open to a newcomer with no budget.

## 6. Official service apps (12 apps)

New apps from banks, airlines, retailers, utilities, schools and public services. They earn because people already are that company's customers.

**What you'd be missing:** the customers' accounts. Nobody downloads a third-party app to pay their electricity bill. Searches for these apps are *navigational*: people type the company's name and tap its app. Ranking second for a brand search is worth almost nothing.

## 7. Camera health measurement (11 apps)

Apps that claim to measure heart rate, blood pressure, stress, skin conditions or similar with the phone's camera.

**What you'd be missing:** clinical validation. Apple's Guideline 1.4.1 requires apps to "clearly disclose data and methodology to support accuracy claims relating to health measurements" and states that apps claiming to "measure blood pressure, body temperature, blood glucose levels, or blood oxygen levels using only the sensors on the device are not permitted." Some apps in this group may be one review away from removal, and medical-device rules can apply on top of Apple's.

**A solo-sized angle:** wellness tracking without measurement claims, such as logging, journaling and habit tools that work with Apple Health data, avoids the problem.

## 8. Regulated products (10 apps)

Sports betting and casino-style apps, prescription telehealth, money transfer, insurance, crypto exchanges.

**What you'd be missing:** a licence and a legal entity. Guideline 5.1.1(ix) says apps in "highly regulated fields (such as banking and financial services, healthcare, gambling, legal cannabis use, air travel and crypto exchanges)" should be submitted "by a legal entity that provides the services, and not by an individual developer."

## 9. Creator memberships (10 apps)

Paid apps built around one person: a fitness coach's programme, a teacher's course, a creator's community.

**What you'd be missing:** the creator's audience. These apps are a payment and delivery layer for a following that already exists on Instagram, TikTok or YouTube. Without the person, the same app earns nothing.

**A solo-sized angle:** if *you* have an audience in a niche, this is one of the best businesses there is. If you don't, the platforms that sell these apps to creators are a different (B2B) business.

## 10. Hardware companions (10 apps)

Apps for a specific brand's camera, smart ring, e-bike, car, toy or home device.

**What you'd be missing:** the device. These apps earn because customers bought the hardware and its subscription. A third-party app depends on the manufacturer's API, and the manufacturer usually ships its own app, which also wins the brand search.

## The one-question test

Before you copy any earning app, imagine shipping an identical copy tomorrow and ask: **what would I still be missing?**

| If the answer is… | Then… |
|:--|:--|
| Users who find and try it | It's a real opportunity. Distribution is the problem you can solve with ASO, content and time. |
| Content, rights or a licence | Skip, or build a tool *around* the content that needs no licence. |
| Other users (a network) | Skip unless you can seed a niche community yourself. |
| A device, brand or existing customer base | Skip. The searches are navigational and the owner wins them. |
| A large ad budget | Skip unless you have one, or find a version of the idea people search for on their own. |

The concepts that pass this test are often less exciting: budget planners, scanners, trackers, study tools, utilities with a sharp focus. They are also the ones where several unrelated small developers are earning at the same time, which is the best evidence that you could too. We explain how to score them in [how to validate an iOS app idea with App Store data](/blog/validate-ios-app-idea/), and list the young earners behind them in [357 young iPhone apps already earn on the US Top Grossing charts](/blog/young-apps-us-top-grossing-october-2026/).

## How we grouped the apps

Fledly takes every app on the US Top Grossing charts (overall and per category) that is under 24 months old, plus apps under 12 months old from the UK, Canada, Australia, Germany and Finland, and leaves out the biggest tech publishers. Each app is classified into a concept by what it does for its user. A concept is marked *not buildable* when it depends on content rights, a network of users, a licence, the owner's hardware or service, a creator's audience, or a funded company's product. The counts above are young earning apps in each group from that day's run. Treat them as rough sizes, not a census.

The classification is automated: an AI model reads each app's store listing and assigns a concept, and fixed rules decide buildability. Individual apps can land in the wrong group, which is why we report groups rather than single apps.

## Frequently asked questions

### What kind of apps should a solo developer avoid?

Apps whose value comes from something other than the software: licensed content, a network of users, a regulatory licence, another company's hardware or service, or a creator's audience. They can earn well, but a copy of the app doesn't copy the reason it earns.

### Can a solo developer build a dating app?

Technically yes, but a dating or social app is only valuable when other people are already using it, and keeping it safe takes moderation work. Without a budget for user acquisition and trust-and-safety, a solo developer's dating app usually stays empty.

### Can I build an app that measures heart rate or blood pressure with the camera?

Apple's Guideline 1.4.1 requires apps to disclose data and methodology for health measurement accuracy claims, and does not permit apps that claim to measure blood pressure, body temperature, blood glucose or blood oxygen using only the device's sensors. Medical device regulations can apply too.

### How do I know if an app idea is copyable?

Imagine shipping an identical app tomorrow and ask what you would still be missing. If the only missing piece is users who find it, the idea is copyable and the work is distribution. If it's content, a licence, a network, a device or an ad budget, it isn't.

## Sources

- Fledly data: US Top Grossing charts (overall and by category) and young apps from the UK, Canada, Australia, Germany and Finland, October 26, 2026.
- Apple: [App Review Guidelines](https://developer.apple.com/app-store/review/guidelines/) (1.4.1 Medical apps, 4.1 Copycats, 5.1.1(ix) Highly regulated fields).