Fello AI vs Nova

Fello AI

• Apple users who want one native app for many AI models
• People who want model access without managing API keys
• Turning notes and PDFs into Word, Excel or PowerPoint files

Nova

• Casual users who want several AI models in one mobile app
• Students looking for homework, essay and proofreading help
• People who prefer to pay by the week instead of committing longer

Fello AI

• It is available on Mac, iPhone and iPad only; the vendor says there is no Windows or Android version.
• Free users get 5 questions per hour with premium models before the app switches to its Free AI model.
• The vendor's FAQ lists lower prices ($3.99 weekly, $9.99 monthly, $79.99 yearly) than the US App Store listing. The price charged is the one shown in the app.
• Billing runs through Apple, and existing ChatGPT, Claude or Gemini subscriptions cannot be connected or used inside the app.

Nova

• Prices are not on the website: the vendor says they are shown in the app, and the US App Store lists the same plan at several price points.
• The vendor's pages do not say where free use stops or which features need a subscription.
• The site lists macOS, but the Mac version is the iPad app: the App Store marks it as not verified for macOS and requires an Apple M1 chip or later.
• Refunds are generally limited to requests made within 3 days of purchase and after fewer than 20 messages.

Fello AI

20+ models in one app

Switch between GPT, Claude, Gemini, Grok, DeepSeek, Kimi, Perplexity and other models from one menu, with no separate subscriptions. Reasoning mode is available across the major models.

Adaptive Search and Deep Research

The app decides when a question needs live web data and answers with sources. Online Search and Deep Research can also be picked by hand from the skills menu.

Skills that produce files

Describe what you need and the app builds a PowerPoint deck, Word document, Excel sheet or PDF in the conversation. A Podcast skill turns a document or topic into a two-host audio episode.

Files and images

Upload up to 16 files per conversation at up to 16 MB each, including PDFs of up to 500 pages and Office documents. Image models generate pictures and edit existing ones from a prompt.

Floating chat bar and dictation

On the Mac, Option-Space opens a chat bar over any app. Voice dictation records up to five minutes at a time and transcribes in more than 100 languages.

Projects, pins and bookmarks

Projects hold shared background, instructions and files for related chats. Conversations can be pinned, replies bookmarked, and everything searched in full text.

Nova

Several models in one app

The App Store listing names OpenAI GPT-5.6, Google Gemini 3.6 Flash, Anthropic Claude Opus 5, Kimi K3, xAI Grok 4.5 and DeepSeek V4 Pro as the models behind the assistant.

Web search and research

Searches the web for real-time information, and a deeper research mode compares information and analyzes sources on a topic.

Writing help and proofreading

Drafts and rewrites essays, posts and other text, checks grammar, clarity and tone, and translates between more than 140 languages.

Image generation and voice mode

Generates images from a prompt, and a voice mode allows hands-free spoken conversations with the assistant.

Files and scan-and-solve

Works on files such as Word and Excel documents, and can scan a document, question or homework problem and answer it.

Cross-device sync

Chats continue across devices, with a web app at chat.novaapp.ai alongside the mobile apps.

Fello AI

• Free$0

  Up to 5 questions per hour with premium models, then a Free AI model until the hour resets. Advanced features need a paid plan.

• AI Chatbot Weekly Plan$4.99

  per week

  Unlimited questions with every premium model and Skills on Mac, iPhone and iPad under one Apple ID.

• AI Chatbot Monthly Plan$11.99

  per month

  The same unlimited access to all premium models and Skills, billed monthly through Apple.

• AI Chatbot Quarterly Plan$24.99

  per quarter

  The same unlimited access to all premium models and Skills, billed every three months through Apple.

• AI Chatbot Yearly Plan$89.99

  per year

  The same unlimited access to all premium models and Skills, billed once a year through Apple.

Nova

• Free$0

  The main chat features at no cost. The vendor's pages do not list the free limits or which features need a subscription.

• 1 Week Chatbot Pro$4.99 to $7.99

  per week (US App Store)

  Weekly subscription with a 3-day trial. The listing shows this item at $4.99, $6.99 and $7.99 without saying what separates the price points.

• 1 Month Chatbot OpenAI Subs$9.99

  per month (US App Store)

  Monthly subscription with a 3-day trial. An item named Nova Premium Subscription is also listed at $9.99, with no period shown.

• 1 Year Chatbot Pro$39.99 to $59.99

  per year (US App Store)

  Yearly subscription, which the vendor describes as discounted against the weekly price. The listing shows it at $39.99 and $59.99.

Fello AI

• Annual discount

  About 37% less with the yearly plan

  On the US App Store the yearly plan is $89.99, compared with $143.88 for twelve months on the $11.99 monthly plan.

Nova

• Annual discount

  Yearly plan priced below the weekly rate

  Nova's subscription terms describe the 1-year subscription as a discount on the weekly price. The US App Store lists it at $39.99 to $59.99 a year against $4.99 to $7.99 a week.