Apollo is a multi-model AI chat app for iPhone and iPad, distributed on the Apple App Store and developed by Quillbound Studios Ltd. The listing is the same App Store entry that previously carried the name AIDA, which means the product was rebranded rather than retired: people who installed AIDA can expect the same style of assistant experience under the Apollo name. Its central pitch is choice. Rather than committing to a single vendor, the app lets you switch between models from OpenAI, Anthropic, Google, and others, which is useful when you want to compare how different engines handle the same request.
Functionally, Apollo behaves like a general-purpose assistant. It generates marketing copy, product descriptions, blog and essay drafts, social posts, and business documents, and it can also handle routine text chores like grammar correction, summarization, and translation. The app documentation also mentions spreadsheet-creation usage and analysis-style tasks, so the intent is broad productivity rather than a single niche. Features include customizable prompts and settings for advanced users, the ability to save favorite responses, and the option to generate multiple variations of a creative request at once. The interface is designed to be approachable for people who just want a chatbot, with deeper controls available for power users.
Two things are worth flagging. First, the app is free to download but offers in-app purchases, so heavier usage or premium features may sit behind a paywall. Second, Apple's listing carries a 13+ age rating and warns that AI/ML models can produce inaccurate or offensive content and that users should not enter personal information; output should be reviewed rather than trusted blindly. Ratings on the store are strong, with a 4.7 average across roughly 189 reviews.
