# Yi Jing vs SolarCalculator

The clearest difference is review sentiment: Yi Jing at 91% against SolarCalculator's 0%. Yi Jing also leads on rating (4.9 vs 1.0) and ratings volume (917 vs 1). SolarCalculator's advantage is price (Free vs $4.99) and in-app purchases (none vs 10). On ads and device support there is nothing between them.

SolarCalculator is free to download; Yi Jing costs $4.99 up front. Yi Jing sells 10 one-off in-app purchases. SolarCalculator asks for nothing beyond the download.

Yi Jing holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Yi Jing has 917 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 91% of Yi Jing's written reviews are positive against 0% of SolarCalculator's.

## The numbers

| Metric | Yi Jing | SolarCalculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (917 ratings)](https://appshunter.io/ios/app/yi-jing/id311377342/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/solarcalculator/id1152869824/reviews) |
| Number of ratings | **917** | 1 |
| Positive reviews | **91.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#26** | — |
| Size | 122 MB | 46 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Flat Earth Studio LLC](https://appshunter.io/developer/311377345) | [Trina Solar Co., Ltd.](https://appshunter.io/developer/1124386872) |

## What reviewers say

### Yi Jing

[App page](https://appshunter.io/ios/app/yi-jing/id311377342)

**Currently charting:** #26 Top Paid · Lifestyle (US App Store)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I Ging: Das Buch der Wandlungen | $2.99 | one-time |
| I Ching (Hurn) | $4.99 | one-time |
| The I Ching: Book I (Wilhelm) | $4.99 | one-time |
| The I Ching II: The Material | $4.99 | one-time |
| The I Ching III: Commentaries | $4.99 | one-time |
| The I Ching Workbook (RL Wing) | $6.99 | one-time |
| I Ching (Barrett) | $6.99 | one-time |
| Navigating Change (Karcher) | $8.99 | one-time |
| The Complete I Ching (Huang) | $9.99 | one-time |
| The Laws of Change (Balkin) | $9.99 | one-time |

**What reviewers like**

- 🌟 Excellent I Ching resource
- 📚 Comprehensive library of translations
- 🗓️ Useful journaling capabilities
- 🔍 Ability to compare multiple interpretations
- 🧭 Variety of casting methods (coins, yarrow)

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 🔒 Difficulty syncing journal across devices
- 🖋️ Typing issues (disappearing text)
- 🔍 Lack of full Wilhelm translation availability

**Reported bugs**

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

**Requested features**

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


### SolarCalculator

[App page](https://appshunter.io/ios/app/solarcalculator/id1152869824)

This app simulates the power generation of solar components. It helps users calculate potential energy output from solar installations.

**Highlights:** Simulates solar component power generation, Calculates energy output, Supports solar installations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Yi Jing free?

Yi Jing costs $4.99, and also offers in-app purchases.

### Is SolarCalculator free?

SolarCalculator is free to download, with no in-app purchases.

### Which has better reviews, Yi Jing or SolarCalculator?

Yi Jing is rated higher. Yi Jing averages 4.9 out of 5 from 917 ratings, while SolarCalculator averages 1.0 from 1 ratings.

### Do Yi Jing or SolarCalculator have ads?

Neither Yi Jing nor SolarCalculator shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*