193+ iOS apps curated and reviewed
The best nejm image challenge apps on iPhone average 4.1★ across 193+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Test and sharpen your diagnostic and visual skills with challenging clinical photos. This app offers detailed images with zoom capabilities and immediate feedback on diagnoses. It's designed for medical professionals to practice anytime, anywhere.
Access and organize the latest medical research and topic reviews in a personalized digital journal. Stay updated with new scientific findings and easily retrieve full-text PDFs from PubMed and other sources.
Engage in a global photography community through fun, competitive challenges. Submit your photos, gain votes, and improve your skills to earn recognition and potentially exhibit your work.
This utility app allows you to search for images using multiple search engines like Google, Bing, Yandex, and TinEye. It helps verify photo sources, find similar products, and discover information about images from your gallery or camera.
Transform text prompts into realistic images, artwork, and sophisticated layouts. Refine your creations with an AI editor to adjust details, extend scenes, or remove backgrounds. Generate custom logos, polished headshots, and face swaps with ease.
Instantly search the web using an image, photo, or URL to identify anything. Features AI-powered object recognition, text translation with OCR, and the ability to trace image origins. Perfect for verifying content and discovering information.
This app allows you to perform visual searches across multiple search engines simultaneously. Verify image authenticity, research people or places, find similar products, or locate celebrities using just an image.
Generate stunning images and videos using advanced AI tools. Transform your ideas into visuals for social media, marketing, or art with precise, high-quality output. Effortlessly create content with smart AI assistance and a variety of styles.
Search for images using various engines like Google, Bing, and Yandex. Verify image authenticity, find similar visuals, or gather information about a photo. Supports searching from your gallery, camera, web links, or clipboard.
Perform reverse image searches to uncover the origin and usage of any photo. Identify subjects, find duplicate or edited versions across the web, and detect fake profile pictures.
Connect with a global community of photographers to participate in creative challenges and photo contests. Improve your skills with feedback, editing tools, and inspiration from millions of shared images. Win exciting prizes and get discovered.
This app connects your mobile device to desktop software for product photography. It allows you to capture images directly from your phone and have them appear in your computer application, streamlining your workflow.
Enhance, retouch, and restore your photos with AI-powered tools. Improve image quality, perfect portraits, revive old pictures, and generate new images from text prompts.
Identify objects and find information about them by using your camera or existing photos. Simply point your device or upload an image to discover details about what you're seeing.
This app offers a wide range of AI-powered tools to enhance and edit your photos. Restore old images, remove unwanted objects, recolor pictures, and apply numerous filters and effects to transform your photos into art.
Create unique images from text descriptions using Stable Diffusion 1.5. This app generates visuals offline on your device, offering a free and fun way to explore AI art. It includes a safety feature to ensure age-appropriate content.
This app is a community for photography enthusiasts to share their work, connect with others, and get inspired. It offers features like large image uploads, no follower counts, and curated content, with opportunities to win prizes through competitions.
Easily search for images using various search engines like Google, Bing, Yandex, and TinEye. Verify photos, identify objects, or find the source of an image with AI-powered detection. Search directly from your camera, photo library, or web URLs.