Comparison

Yi Jing vs Eiriu Eolas

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

Head to head
About

Yi Jing

This app provides an ancient oracle experience on your modern device. It helps you navigate life's challenges by offering a journal, multiple book translations, and various methods for casting coins or manipulating yarrow stalks to receive guidance.

Highlights
  • Ask questions using coin toss or yarrow stalks
  • Manage a detailed journal with notes and search
  • Browse multiple I Ching book translations
  • Access original Chinese and other language texts
  • Includes artwork and specialized casting methods
Features
Currently charting
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Ancient oracle meets modern device! Deal with life's challenges more meaningfully. Tap into your inner self. Find the translation that speaks to you. Ask questions, use the oracle, manage a journal, and browse multiple book translations. Ask questions... * Specify a topic * Enter a question or phrase * Toss coins by shaking * Or manipulate yarrow stalks * Or toss dice * Or use Stephen Karcher's Circle of Protectors * Or navigate Michael Tingle's I Ching Mandala * Or use the Quick option * Or use manual input Manage a journal... * Multi-line questions & notes * Sort by topic, hexagram or date * Search by keyword * Present, Changes and Future * Add your own notes * Switch translations for readings * Mail journal entries Browse the book... * Multiple book translations * Chinese with Pinyin phonetics * King Wen Hexagram numbers * Trigram descriptions * Component Trigrams * Ruling Lines * Related Hexagrams English translations... * A Library tab makes it easy to switch books * "Yi Jing - Book of Transformations" by Brian Arnold, featuring artwork by Elizabeth Nelson * "A Guide to the I Ching" by Carol K. Anthony (English and German) * "Yi Jing / Book of Changes" by Gregory C. Richter * "I Ching Oracle" by Nigel Richmond Other translations... * "Language of the Lines", English (Nigel Richmond) * Original Chinese (two versions) * "I Ging", German (Wilhelm) * "Yi Jing", Japanese (Yo Fujiwara) * "Yi Jing", in French, Spanish, Dutch, Portuguese, Italian, Russian (Arnold) More books for in-app purchase... * "The I Ching or Book of Changes" (Book I, II and III) by Richard Wilhelm * "The Laws of Change" by Jack Balkin * "The Complete I Ching" by Taoist Master Alfred Huang Other key features... * Straightforward and elegant interface * Option to represent coin heads as Yang * Option to cast coins using Yarrow stalk probabilities * Portrait and landscape orientation * Resources to access help and online I Ching resources

About

Eiriu Eolas

This program uses ancient breathing and meditation techniques to help manage stress, process past trauma, and detoxify the mind and body. It offers guided sessions, a journal for experiences, and various breathing exercises, all accessible offline. It's designed to stimulate the vagus nerve for relaxation without requiring extra hardware.

Highlights
  • Stress relaxation techniques
  • Emotional and psychological trauma processing
  • Repressed emotion release
  • Body and mind detoxification
  • Vagus nerve stimulation through breathing
  • Offline guided sessions
  • Experience journal
Features
Currently charting
Read full description

Éiriú Eolas is Irish Gaelic for “Growth of Knowledge”. Éiriú Eolas is a stress Control and detox program. Is the modern revival of an ancient breathing and meditation program which is being acclaimed as the tool that will help you to: - Relax from the stresses of everyday life. - Gently work your way through past emotional and psychological trauma. - Release repressed emotions and mental blockages. - Detoxify your body and mind. This is an ancient meditation program centralized in relieve of stress by gently stimulus of the vagus nerve, no additional hardware, not fancy gadgets, just by breathing! Not like any other meditation program out there. The full program video, audio and guide on the go, and no internet connection needed to use it. This program is perfected by the author Laura Knight-Jadczyk who created a full guided session explaining every detail of it. Keep your journal with experiences or dreams you might have after every meditation, and take advantage to the different breathing exercises to help you relieve stress. Listen to our unique meditation program. And you can use it with the Apple Watch for more versatile sessions. Note: The App provides educational and wellness guidance only. And does not provide medical diagnosis or treatment. Consult the Quick Guide Introduction within the app first before start the full program.

Screenshots

Yi Jing4 screens
Eiriu Eolas4 screens

Verdict

The call

The clearest difference is in-app purchases: Eiriu Eolas at none against Yi Jing's 10. Eiriu Eolas also leads on update cadence (weekly vs every 4 months) and price ($1.99 vs $4.99). Yi Jing's advantage is ratings volume (909 vs 1) and iOS requirement (15.6 vs 18.6). On rating, ads, chart position 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

Yi Jing costs $4.99 and Eiriu Eolas $1.99 up front. Yi Jing sells 10 one-off in-app purchases. Eiriu Eolas asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Yi Jing against 5.0 for Eiriu Eolas. That said, the two scores are not equally well evidenced: Yi Jing has 909 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 91% of Yi Jing's written reviews are positive against 100% of Eiriu Eolas's.

UpkeepUpdate frequency

Yi Jing ships an update every 4 months, Eiriu Eolas weekly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 4 level
Yi Jing versus Eiriu Eolas: the parameters behind the verdict, then further details
ParameterYi JingEiriu Eolas
Price$4.99$1.99 — better
Rating4.9 (909 ratings)5.0 (1 ratings) — better
Positive reviews91.2% of reviews100.0% of reviews — better
Number of ratings909 — better1
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#139#58 — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better18.6
Further details — not scored
Size122 MB693 MB
Age rating4+17+
DeveloperFlat Earth Studio LLCIRVING JOSE CARDENAS ROMERO

Customer experience

Yi Jing

All ratings909 ratings
Positive99.1%
Neutral0.7%
Negative0.2%
Written reviews251 reviews
Positive91.2%
Neutral1.6%
Negative7.2%

Eiriu Eolas

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Yi Jing

Reported bugs

3 issues
  • Crashes on launch or shortly after
  • Typing issues (text disappearing)
  • Syncing problems between devices

Requested features

4 requests
  • Add more I Ching text translations
  • Improve syncing and cross-device support
  • Implement password protection for journal entries
  • Optimize performance and stability

Eiriu Eolas

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Yi Jing

One-time10
  • I Ging: Das Buch der Wandlungen$2.99
  • I Ching (Hurn)$4.99
  • The I Ching: Book I (Wilhelm)$4.99
Show 7 more
  • The I Ching II: The Material$4.99
  • The I Ching III: Commentaries$4.99
  • The I Ching Workbook (RL Wing)$6.99
  • I Ching (Barrett)$6.99
  • Navigating Change (Karcher)$8.99
  • The Complete I Ching (Huang)$9.99
  • The Laws of Change (Balkin)$9.99
None

Eiriu Eolas

No in-app purchases

Questions

Is Yi Jing free?
Yi Jing costs $4.99, and also offers in-app purchases.
Is Eiriu Eolas free?
Eiriu Eolas costs $1.99, with no in-app purchases.
Which has better reviews, Yi Jing or Eiriu Eolas?
Eiriu Eolas is rated higher. Yi Jing averages 4.9 out of 5 from 909 ratings, while Eiriu Eolas averages 5.0 from 1 ratings.
Do Yi Jing or Eiriu Eolas have ads?
Neither Yi Jing nor Eiriu Eolas shows ads.
Which is updated more often, Yi Jing or Eiriu Eolas?
Yi Jing ships an update every 4 months, and Eiriu Eolas weekly. Most recently, Yi Jing was updated on October 11, 2026 and Eiriu Eolas on October 13, 2026.
Which is more popular, Yi Jing or Eiriu Eolas?
Yi Jing currently peaks at #139 in the App Store charts, and Eiriu Eolas at #58. Chart position reflects recent download velocity rather than total install base.

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