# RapidExposure vs I Ching AI

The clearest difference is price: I Ching AI at Free against RapidExposure's $0.99. I Ching AI also leads on review sentiment (71% vs 38%) and update cadence (weekly vs every 2 months). RapidExposure's advantage is in-app purchases (none vs 5) and iOS requirement (12.0 vs 16.6). On ads and device support there is nothing between them.

I Ching AI is free to download; RapidExposure costs $0.99 up front. I Ching AI sells 5 in-app purchases, starting at $4.99 per month. RapidExposure asks for nothing beyond the download.

RapidExposure ships an update every 2 months, I Ching AI weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | RapidExposure | I Ching AI |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/i-ching-ai/id6447413172/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 37.5% of reviews | **71.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 9 MB | 155 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HIROFUMI MARUO](https://appshunter.io/developer/667820705) | [QOOQ inc.](https://appshunter.io/developer/446639722) |

## What reviewers say

### RapidExposure

[App page](https://appshunter.io/ios/app/rapidexposure/id839420903)

This app transforms your iPhone into a professional exposure meter. It continuously measures light and displays ISO, F-stop, and shutter speed values without needing to take a photo. You can adjust these settings and lock the exposure to save a reference image with the calculated values.

**Highlights:** Real-time exposure measurement, Adjustable ISO, F-stop, and shutter speed, Exposure lock and reference value saving, History of saved exposure values, Tap-to-adjust exposure on preview, Detailed 1/3 step display mode

**Features:** macOS Compatibility

**In-app purchases:** none


### I Ching AI

[App page](https://appshunter.io/ios/app/i-ching-ai/id6447413172)

This app combines ancient I Ching wisdom with AI to offer personalized guidance on life's challenges. Get instant, private chat support for love, career, and relationships, with practical advice and actionable steps.

**Highlights:** Personalized AI readings, Instant chat support, Absolute privacy, Authentic I Ching divination, Practical guidance and advice, AI-powered by ChatGPT-4o

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Plan | $49.99 | per year |
| additional tokens | $2.49 | one-time |
| additional tokens middle | $4.59 | one-time |
| additional tokens large | $8.99 | one-time |


## Frequently asked questions

### Is RapidExposure free?

RapidExposure costs $0.99, with no in-app purchases.

### Is I Ching AI free?

I Ching AI is free to download, with in-app purchases available.

### Do RapidExposure or I Ching AI have ads?

Neither RapidExposure nor I Ching AI shows ads.

### Which is updated more often, RapidExposure or I Ching AI?

RapidExposure ships an update every 2 months, and I Ching AI weekly. Most recently, RapidExposure was updated on October 24, 2026 and I Ching AI on October 24, 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.*