Cortex by Opterra app icon

Apps Like Cortex by Opterra for iPhone and iPad

by Evan Graven★ 5.05 ratingsProductivityFreeData updated 2026-09-06

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Acrobat Reader: PDF Editor app icon

    Acrobat Reader: PDF Editor

    Adobe Inc.

    Manage PDFs with AI Assistant and Spaces

    Manage PDF documents with AI-powered tools. Create and organize PDF Spaces for multi-file collaboration. Use AI Assistant for text or voice-based queries and get cited answers from documents. Share responses directly.

    ★ 4.6651,549 ratingsBusinessFreeData updated 2026-09-12
  2. Perplexity - AI Search & Chat app icon

    Perplexity - AI Search & Chat

    Perplexity AI Inc.

    Ask questions and get accurate answers

    Access credible, up-to-date information with source citations. using AI models from OpenAI, Anthropic, and Meta. Draft emails and conduct research. Sync across devices. Follow threads for detailed follow-ups.

    ★ 4.8504,443 ratingsProductivityFreeData updated 2026-09-12
  1. Citizen Now: US Citizenship app icon

    Citizen Now: US Citizenship

    Liontude LLC

    Study civics questions and prepare for

    Study for the US Test with authentic questions and audio. Practice both 100-question and 128-question formats. Review official USCIS materials and track progress. Access study guides and test simulations. Prepare for the reading and writing sections.

    ★ 4.962,399 ratingsEducationFreeData updated 2026-09-06
  2. Doximity app icon

    Doximity

    Doximity

    Connect with colleagues and share notes

    Access patient records securely with HIPAA-compliant tools. Generate clinical notes and letters using AI-powered assistance. Communicate with colleagues via encrypted messaging. Stay updated with medical news and resources.

    ★ 4.8197,919 ratingsMedicalFreeData updated 2026-09-12
  3. Gemini Notebook app icon

    Gemini Notebook

    Google LLC

    Organize notes, manage tasks, track ideas

    Create and access organized notebooks with AI-powered note-taking. Ask questions to get instant answers. Collaborate in real-time with others. Export notes in multiple formats and integrate with cloud storage services.

    ★ 4.959,756 ratingsProductivityFreeData updated 2026-09-12
  4. Vera Health: AI for Clinicians app icon

    Vera Health: AI for Clinicians

    Veracity-Health Inc.

    Get clinical answers and review evidence

    Provides clinical answers based on peer-reviewed medical literature. Search for symptoms, diagnoses, and treatments. Access evidence-based guidelines and drug information. Supports multiple languages. Complies with HIPAA standards.

    ★ 4.91,718 ratingsMedicalFreeData updated 2026-09-08
  5. AI Chatbot - Nova app icon

    AI Chatbot - Nova

    SCALEUP YAZILIM HIZMETLERI ANONIM SIRKETI

    Chat with AI, manage tasks, organize workflows

    Answer: provides AI-powered chat and assistance using multiple advanced models. Users can ask questions, get detailed answers, and receive recommendations for books or movies.

    ★ 4.6125,804 ratingsProductivityFreeData updated 2026-09-12
  6. Cortex Light app icon

    Cortex Light

    Entrinsia Inc.

    Manage cultivation data and workflows

    Track state-licensed cultivation data with real-time dashboards and task calendars. Manage workflows to update information quickly. Receive notifications for pending actions. Access expert compliance guidance and messages directly from the .

    ★ 5.04 ratingsBusinessFreeData updated 2026-09-06
  7. OpenEvidence app icon

    OpenEvidence

    OpenEvidence Inc.

    Search clinical evidence and access guidelines

    Access clinical guidelines, research, and drug information with citations from peer-reviewed sources. Search for medical conditions, treatments, and medications. Filter results by specialty, date, and evidence level.

    ★ 4.911,845 ratingsMedicalFreeData updated 2026-09-12
  8. Freenotes: AI Notes Taking app icon

    Freenotes: AI Notes Taking

    Hangzhou Free Notes Technology Co., Ltd

    Note, edit, and organize digitally

    Take with handwriting recognition and stylus support. Annotate PDFs and images. Organize into folders and tags. Search text and handwriting. Sync across devices. Set reminders and share . Export in multiple formats.

    ★ 4.745,101 ratingsProductivityFreeData updated 2026-09-06
  9. CDL Practice Test 2026 by ABC app icon

    CDL Practice Test 2026 by ABC

    Thanh Hung

    Tests, track progress, learn CDL rules

    Prepare for CDL exams with realistic tests and AI-driven explanations. Track progress with detailed reports. Study all knowledge areas and endorsements. Simulate exams for General Knowledge and specialized tests. Receive instant feedback on answers.

    ★ 4.927,314 ratingsEducationFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.