Best Patent Search Apps

249+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated September 2026

Looking for free patent search apps? 19 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Patent Search Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PatentGPT: AI Patent ResearchPatentGPT: AI Patent ResearchFree5.0★ (2)NoYesSep 2026
2U.S. Trademark Search ToolU.S. Trademark Search ToolFree4.8★ (203)NoNoOct 2026
3Reverse - Image SearchReverse - Image SearchFree3.8★ (5.1K)YesYesOct 2026
4Invent IdeaInvent IdeaFree4.7★ (3)NoNoOct 2026
5PatentTrail - Patent MonitorPatentTrail - Patent MonitorFree5.0★ (1)YesYesMay 2026
6Patent by k-A.iPatent by k-A.iFree—NoNoMay 2026
7YourPatentAI: Draft & SearchYourPatentAI: Draft & SearchFree—NoYesOct 2026
8EPO Data HubEPO Data HubFree—NoNoMay 2026

Top Picks for Patent Search

PatentGPT: AI Patent Research#1

PatentGPT: AI Patent Research by SignifyID LLC

Search, save, and file patents
Editor's Choice
📊 Productivity
5.0(2 ratings)
FreeIn-App Purchases
PatentGPT: AI Patent Research screenshot 1
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PatentGPT: AI Patent Research screenshot 3
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PatentGPT: AI Patent Research screenshot 5

This AI-powered agent helps inventors and researchers discover, analyze, and organize patents. It offers advanced search, document analysis, interactive chat for patent insights, and project organization tools to streamline the innovation process.

4.8😊(203 ratings)
Free
U.S. Trademark Search Tool screenshot 1
U.S. Trademark Search Tool screenshot 2
U.S. Trademark Search Tool screenshot 3
U.S. Trademark Search Tool screenshot 4
U.S. Trademark Search Tool screenshot 5
U.S. Trademark Search Tool screenshot 6

Easily search for trademarks filed with the USPTO directly from your iPhone. Ideal for entrepreneurs and legal professionals needing to check existing records by name, owner, or number. Includes a class search engine and helpful FAQs.

What We Love

  • 👍 Easy to use
  • 🚀 Fast and efficient
  • 💡 Helpful for trademark searches
  • ✅ Accurate results
  • 💰 Saves time and money
  • 📱 Great for mobile searches
  • 🎯 Good for checking availability
  • 🔍 Useful for company name research
  • 📈 Good for monitoring status
  • 💼 Beneficial for small businesses
  • 🧐 Useful for infringement investigation

Room to Improve

  • 🐛 Inconsistent search results
  • 📉 Not always reliable
  • ❌ Missing some trademark matches
Reverse - Image Search#3

Reverse - Image Search by Yogesh Ukani

search by image, image search
Worth Considering
🔧 Utilities
3.8😞(5.1K ratings)
FreeAdsIn-App Purchases
Reverse - Image Search screenshot 1
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Reverse - Image Search screenshot 4
Reverse - Image Search screenshot 5
Reverse - Image Search screenshot 6

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.

What We Love

  • 🔍 Effective reverse image search
  • 🔍 Helpful for identifying scams
  • 🔍 Useful for finding similar images

Room to Improve

  • 💸 Expensive subscription required
  • 🚫 Limited functionality in free version
  • 📢 Excessive ads and pop-ups
  • 🐛 Inconsistent and unreliable search results

More Patent Search apps to explore

FAQ about Patent Search

What are the best patent search apps for iPhone?
PatentGPT: AI Patent Research tops our patent search apps ranking as of September 2026, with a 5.0-star average from 2 App Store ratings, and it's free to download.
Yes — 19 of the top patent search apps we rank are free to download, including PatentGPT: AI Patent Research and U.S. Trademark Search Tool.
PatentGPT: AI Patent Research has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ patent search apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.