# i IChing vs BuildTimer

The clearest difference is in-app purchases: BuildTimer at none against i IChing's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. i IChing sells 1 one-off in-app purchase. BuildTimer asks for nothing beyond the download.

i IChing ships an update every 10 days, BuildTimer fortnightly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | i IChing | BuildTimer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free | — |
| Size | 101 MB | 40 MB |
| Requires iOS | 16.6 | **16.3** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [QOOQ inc.](https://appshunter.io/developer/446639722) | [hashimoto ryouya](https://appshunter.io/developer/1684907824) |

## What reviewers say

### i IChing

[App page](https://appshunter.io/ios/app/i-iching/id1515102228)

This app offers authentic I Ching divination using a faithful digital recreation of the traditional yarrow stalk method. It provides over 250,000 characters of content, including original texts and Wilhelm commentary, to guide important life decisions.

**Highlights:** Authentic yarrow stalk divination, 250,000+ characters of content, Complete Wilhelm commentary, Ad-free divination experience, Browse all 64 hexagrams, Automatic reading history

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | one-time |


### BuildTimer

[App page](https://appshunter.io/ios/app/buildtimer/id6448892333)

**In-app purchases:** none


## Frequently asked questions

### Is i IChing free?

i IChing is free to download, with in-app purchases available.

### Is BuildTimer free?

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

### Do i IChing or BuildTimer have ads?

Neither i IChing nor BuildTimer shows ads.

### Which is updated more often, i IChing or BuildTimer?

i IChing ships an update every 10 days, and BuildTimer fortnightly. Most recently, i IChing was updated on October 10, 2026 and BuildTimer on October 6, 2026.

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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.*