Top Earnings Apps Without Investment.

As of my knowledge cutoff in September 2021, some of the top-earning apps were:

1. TikTok: A social media app for creating and sharing short videos.

2. Tinder: A dating app that allows users to browse through profiles and connect with potential matches.

3. YouTube: A video-sharing platform where users can upload, watch, and share videos.

4. Netflix: A subscription-based streaming service for movies and TV shows.

5. Tinder: A social networking app designed for making professional connections.

6. Twitch: A platform for live streaming video games, esports, and other content.

7. Candy Crush Saga: A popular mobile game that involves matching candies to complete levels.

8. Clash of Clans: A strategy game where players build and defend their own villages.

9. Pokémon GO: An augmented reality game where players can catch virtual Pokémon in the real world.

10. Spotify: A music streaming service that offers a vast library of songs and podcasts.

Please note that app rankings and earnings can change over time, so this list may have evolved since my knowledge cutoff.