Comparison

Ekho vs Calc Pass

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

Head to head
About

Ekho

This app offers high-quality audio recordings of ancient Greek and Old English texts read with historically accurate reconstructed pronunciations. It provides a distraction-free listening experience to aid in language learning and appreciation of classical literature.

Highlights
  • Historically accurate pronunciations
  • High-quality audio recordings
  • Ancient Greek and Old English texts
  • Distraction-free interface
  • Personalized library
  • Cross-device syncing
Features
Read full description

Where do you go if you want to hear what Plato sounded like? Or if you want to listen to a Beowulf recitation like you're a thane in a mead-hall? Ekho is the ancient language streaming app. Subscribe in-app to access high-quality audio recordings of Ancient Greek and Old English texts read in historically accurate reconstructed pronunciations. We can't revivify the corpse of Plato or of an Anglo-Saxon scop. But we can bring you the best voice performances of Ancient Greek and Old English literature anywhere on the internet. Subscribe in-app to access the talents of Colin Gorrie, Luke Ranieri, and others from the Ancient Language Institute, Ekho specializes in creating audiobooks of the great texts of the ancient world that are recorded using carefully reconstructed historical pronunciations. The Ekho app uses a simple and beautiful interface to make your experience listening to our audiobooks as pleasant and distraction-free as possible. Subscribe, crack open a copy of your favorite Ancient Greek or Old English text, turn on the audio, and read along. The Ancient Language Institute exists to aid students in their path to proficiency in ancient languages, to improve the way ancient languages are taught, and to foster a rebirth of the humanistic tradition. We do all of this because, like Cicero, we believe that the ancient authors have left us "images of the bravest of men—not merely for contemplation, but also for imitation." Reading and listening to the ancient authors in their own words is the best way to gaze upon these images. This is the essence of the humanistic tradition. We invite you to come join us. Visit us at ancientlanguage.com. Your subscription gives you access to account-based features and premium content including: - A personalized library - Cross-device syncing of progress, notes, and highlights - Premium ancient language audiobooks and ebooks Terms of Service: https://app.ancientlanguage.com/legal/terms-of-service Privacy Policy: https://app.ancientlanguage.com/legal/privacy-policy

About

Calc Pass

Prepare for AP Calculus exams with comprehensive study materials and practice. This app offers guided tutorials, over 1,100 practice questions, chapter quizzes, and full-length exams. It provides personalized study schedules and predicts your AP score to help you study with confidence.

Highlights
  • AP Calculus AB/BC content
  • 10 comprehensive chapters
  • 1,100+ practice questions
  • Chapter tutorials and quizzes
  • Full-length practice exams
  • Personalized study schedule
  • Progress tracking
Features
Read full description

CalcPass is a comprehensive AP Calculus study and practice app designed to help students prepare for the AP Calculus AB and BC exams. Study all 10 major AP Calculus chapters with guided tutorials, practice questions, chapter quizzes, and full-length practice exams. CalcPass helps you identify areas that need more practice and provides a structured study experience based on your AP exam date. Features include: • AP Calculus AB and BC content • 10 comprehensive chapters • 1,100+ practice questions • Chapter tutorials and quizzes • Full-length AP Calculus practice exams • Predicted AP score from practice exams • Personalized study schedule based on your exam date • Progress tracking Whether you're beginning your AP Calculus preparation or reviewing before exam day, CalcPass gives you the tools to practice, assess your progress, and prepare with confidence.

Screenshots

Ekho2 screens
Calc Pass4 screens

Verdict

The call

The clearest difference is monetization model: Calc Pass at free with in-app purchases against Ekho's subscription. Calc Pass also leads on update cadence (weekly vs every 8 months) and rating (5.0 vs 4.7). Ekho's advantage is ratings volume (9 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ekho sells 3 in-app purchases, starting at $6.99 per month and Calc Pass sells 3 in-app purchases, starting at $49.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calc Pass holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Ekho has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Ekho ships an update every 8 months, Calc Pass weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Ekho versus Calc Pass: the parameters behind the verdict, then further details
ParameterEkhoCalc Pass
PriceFreeFree
Rating4.7 (9 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 8 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size32 MB38 MB
Age rating4+4+
DeveloperAncient Language InstituteClinical Biostats, LLC.

In-app purchases

3 purchases

Ekho

Subscriptions3
  • Ancient Greek$6.991 Month
  • Old English$6.991 Month
  • Ancient Greek and Old English$9.991 Month
3 purchases

Calc Pass

Subscriptions3
  • CalcPass+ 3 Months$49.993 Months
  • CalcPass+ 6 Months$89.996 Months
  • CalcPass+ 1 Year$149.991 Year

Questions

Is Ekho free?
Ekho is free to download, with in-app purchases available.
Is Calc Pass free?
Calc Pass is free to download, with in-app purchases available.
Which has better reviews, Ekho or Calc Pass?
Calc Pass is rated higher. Ekho averages 4.7 out of 5 from 9 ratings, while Calc Pass averages 5.0 from 1 ratings.
Do Ekho or Calc Pass have ads?
Neither Ekho nor Calc Pass shows ads.
Which is updated more often, Ekho or Calc Pass?
Ekho ships an update every 8 months, and Calc Pass weekly. Most recently, Ekho was updated on October 30, 2026 and Calc Pass on October 31, 2026.

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