Comparison

Kero vs Notra

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Kero

Features
Read full description

Kero is an AI study app that turns PDFs, lectures, YouTube videos, websites, and notes into clear study notes, quizzes, flashcards, and exam practice. Study faster with everything in one place: - Upload PDFs, documents, websites, YouTube links, or pasted text - Turn messy course material into clean study notes - Chat with your notes and ask follow-up questions - Generate flashcards, quizzes, fill-in-the-blank drills, and exam practice - Get step-by-step explanations for homework and hard concepts - Check writing for AI signals before submitting essays - Organize notes by class, course, or folder - Build a study plan for exams, homework, and review Whether you are cramming for a test, reviewing a lecture, catching up on class notes, or trying to understand a difficult topic, Kero helps you turn your own material into an active study session. Use Kero for school, college, exam prep, homework help, lecture review, PDF summaries, flashcards, quizzes, and smarter study sessions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://studioray.co/privacy

About

Notra

Features
Read full description

Tired of rereading notes without remembering them? Notra turns your own class material into active study tools. Take a photo, import a PDF, or paste text. In seconds, get a clear study guide, flashcards, a quiz, and an AI tutor that answers from your material. Review the key ideas, test your knowledge, and ask for an explanation whenever a concept feels unclear. Everything stays organized by subject so every lesson is easy to find. From middle school to college, Notra helps you study what you are actually learning instead of generic content. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Kero4 screens
Notra4 screens

Verdict

The call

Kero and Notra are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Kero sells 3 in-app purchases, starting at $9.99 per 7 days and Notra sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Kero versus Notra: the parameters behind the verdict, then further details
ParameterKeroNotra
PriceFreeFree
Update frequencyโ€”Every 10 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS16.416.4
Further details โ€” not scored
Size159 MB56 MB
Age rating4+4+
DeveloperStudio Ray Inc.Eclozion

In-app purchases

3 purchases

Kero

Subscriptions3
  • Kero Pro Weekly$9.997 Days
  • Kero Pro Yearly Offer3 Days trial$79.991 Year
  • Kero Pro Yearly3 Days trial$99.991 Year
2 purchases

Notra

Subscriptions2
  • Notra Pro Monthly7 Days trial$8.991 Month
  • Notra Pro Yearly7 Days trial$59.991 Year

Questions

Is Kero free?
Kero is free to download, with in-app purchases available.
Is Notra free?
Notra is free to download, with in-app purchases available.
Do Kero or Notra have ads?
Neither Kero nor Notra shows ads.

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