BrainSpark — snap a photo, get the answer and a clear step-by-step explanation in seconds.
Stuck on homework, exam prep, or a tricky concept? Point your camera at any question and BrainSpark walks you through the method behind the answer—so you actually understand it, not just copy it.
SNAP & SOLVE
Capture any question with your camera or photo library—printed, handwritten, or straight from a textbook. BrainSpark recognizes the problem in seconds and returns an accurate answer with the reasoning laid out. Working through a whole assignment? Snap the next question right from the answer page.
STEP-BY-STEP EXPLANATIONS
More than a final answer: every solution includes a clear, logical breakdown of the method, formulas, and reasoning behind each step, so you can solve the next one on your own.
ASK FOLLOW-UP QUESTIONS
Still unclear? Keep the conversation going. Ask BrainSpark to explain a step in simpler terms, show another example, or go deeper on the topic until it clicks.
MISTAKE BOOK & HISTORY
Star tricky problems into your personal mistake book and track each one from "new" to "mastered". Your full question history stays searchable, so pre-exam review takes minutes instead of hours.
SUBJECTS & EXAMS
• Math: algebra, geometry, trigonometry, calculus, and more
• Science: physics, chemistry, biology, and earth science
• History, economics, languages, and general coursework
• Useful for SAT, ACT, AP, licensing exams, and professional certification prep
BRAINSPARK PLUS
• Unlimited follow-up questions until you fully understand
• Higher accuracy and faster responses when you need them most
• Ad-free studying with no distractions
Download BrainSpark and turn every problem you meet into something you truly understand.
ToS: https://www.ygtai.com/terms.html
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.ygtai.com/privacy.html
STAY CONNECTED
Email: callus@ygtai.com
Re-crop from the original photo, so you can bring back a question that was cut off the first time. You can now share a solved answer, and stop waiting if an answer takes too long. Also fixes platform detection for new accounts.
Version 2.1.5
The developer, Nanjing Yibuxilong Intelligent Technology Co., Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
