Comparison

DYC Polestar vs Corpán

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

Head to head
About

DYC Polestar

Generate detailed astrology charts using traditional Chinese methods. This app calculates natal, yearly, and decade cycle charts from birth data. It also includes extensive course notes and interactive lookup features for astrological auspiciousness.

Highlights
  • Polestar (Zi Wei) chart generation
  • Natal, yearly progression, and decade cycle charts
  • Solar birth data conversion to stems and branches
  • PDF chart export
  • Email and print chart functionality
  • 300+ pages of class notes
  • Interactive star auspice lookup
Features
Read full description

This application generates Polestar (Zi Wei) astrology charts. Enter solar birth data which is then converted to the stems and branches system for chart calculation. The application can generate natal, yearly progression, and decade cycle charts. Charts can be converted to PDF and emailed or printed from within the application. DYC Polestar now includes over 300 pages of class notes and extensive star auspice information from Da Yuan Circle's Polestar Astrology course. The new "interactive text" function allows students and practitioners to quickly look up details when preparing charts.

About

Corpán

This app offers a multilingual language-learning experience focused on real-world fluency. It provides a vast library of sentences, instant audio pronunciation, and the ability to learn multiple languages simultaneously. New content and games are added weekly through a modular pack system.

Highlights
  • Learn 27 languages
  • 30,000+ real-world sentences
  • Instant audio pronunciation
  • Multilingual learning
  • Offline-friendly sentence library
  • Modular Packs for new content and games
  • SDK for custom content creation
Features
Read full description

PURE LEARNING. Respectful, elegant, ad-free language study from a small independent team. Corpán is the continuous evolution of language learning. OUR PRINCIPLES • Private. No accounts, no tracking, no data collection. Your study stays on your device. • Offline. Your sentence library works without a network. Audio works offline too if you have offline voices installed. Travel, fly, study off-grid. • Quiet. No ads. No nagging notifications. • Curated. Every sentence is hand-picked. Phrases real people actually say, weighted A1–B2 for daily life, travel, and work. • Yours. Set your native language and study from your perspective, not "from English." MANY WAYS TO STUDY, ALL IN ONE APP • Phrase book. Tap any sentence to hear it spoken in clear native voices. Filter by topic and CEFR level. • Audiobooks. Read full books in your target language with sentence-by-sentence narration and instant translation. Free and premium titles. • Pronunciation Coach. Get pronunciation feedback from offline speech-to-text models running entirely on your device. • World Radio. Tune in to live stations from anywhere on the planet — true native streaming, lock-screen controls, background playback. • Games. Recognize Chinese characters with Hanzipan. Run, jump, and learn in 3D with Hover Runner. • And new experiences ship all the time — delivered through Packs, our modular system for adding games, books, readers, and learning modes without bloating the core app. Learn many languages at once, or focus on just one. Switch your primary language any time. Currently practiced in over 50 languages: Arabic, Bengali, Bulgarian, Cantonese (Traditional, Hong Kong), Catalan, Chinese (Simplified), Chinese (Traditional), Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Lithuanian, Malay, Marathi, Nepali, Norwegian, Persian, Polish, Portuguese (Brazil), Portuguese (Portugal), Punjabi (Gurmukhi), Punjabi (Shahmukhi), Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Urdu, and Vietnamese. The interface, onboarding, and settings are fully localized in every supported language. BUILD WITH US Corpán is open at the edges. Our Packs SDK lets creators build their own language-learning experiences — powered by the same curated corpus, native TTS, and native streaming — and ship them inside Corpán. Join the small team building the language-learning app we always wanted. Start learning with Corpán today. — Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ — Privacy Policy: https://encorpora.io/privacy

Screenshots

Corpán4 screens

Verdict

The call

The clearest difference is price: Corpán at Free against DYC Polestar's $99.99. Corpán also leads on update cadence (every 10 days vs every 7 months) and review sentiment (100% vs 71%). DYC Polestar's advantage is in-app purchases (none vs 4). On rating, ratings volume, ads and monetization model 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

Corpán is free to download; DYC Polestar costs $99.99 up front. Corpán sells 4 in-app purchases, starting at $12.99 per month. DYC Polestar asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for DYC Polestar against 5.0 for Corpán. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews are what separate them: 71% of DYC Polestar's written reviews are positive against 100% of Corpán's.

UpkeepUpdate frequency

DYC Polestar ships an update every 7 months, Corpán every 10 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
DYC Polestar versus Corpán: the parameters behind the verdict, then further details
ParameterDYC PolestarCorpán
Price$99.99Free — better
Rating5.0 (5 ratings)5.0 (10 ratings)
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings510 — better
Update frequencyEvery 7 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.6 — better16.4
Further details — not scored
Size14 MB65 MB
Age rating4+4+
DeveloperDarren GibbsCorpora Inc

Customer experience

DYC Polestar

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

Corpán

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DYC Polestar

No in-app purchases

4 purchases

Corpán

Subscriptions2
  • Premium Content Monthly7 Days trial$12.991 Month
  • Corpan Premium Annual7 Days trial$99.991 Year
One-time2
  • Tolstoy - What Men Live By$0.99
  • Fascinating Science Volcanoes$3.99

Questions

Is DYC Polestar free?
DYC Polestar costs $99.99, with no in-app purchases.
Is Corpán free?
Corpán is free to download, with in-app purchases available.
Which has better reviews, DYC Polestar or Corpán?
DYC Polestar and Corpán are both rated 5.0 out of 5 on the App Store, from 5 and 10 ratings respectively.
Do DYC Polestar or Corpán have ads?
Neither DYC Polestar nor Corpán shows ads.
Which is updated more often, DYC Polestar or Corpán?
DYC Polestar ships an update every 7 months, and Corpán every 10 days. Most recently, DYC Polestar was updated on October 23, 2026 and Corpán on October 15, 2026.

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