# 展望諸羅城 vs ThetaWave

The clearest difference is in-app purchases: 展望諸羅城 at none against ThetaWave's 8. 展望諸羅城 also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). ThetaWave's advantage is update cadence (fortnightly vs every 38 months). On price and device support there is nothing between them.

Both are free to download. ThetaWave sells 7 in-app purchases, starting at $21.99 per month. 展望諸羅城 asks for nothing beyond the download.

展望諸羅城 ships an update every 38 months, ThetaWave fortnightly. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 展望諸羅城 | ThetaWave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (51 ratings)](https://appshunter.io/ios/app/thetawave-ai-study-notes/id6744060956/reviews)** |
| Number of ratings | — | **51** |
| Positive reviews | — | 54.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 98 MB | 107 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chi Fang Huang](https://appshunter.io/developer/1538524661) | [Thetawave](https://appshunter.io/developer/1805834893) |

## What reviewers say

### 展望諸羅城

[App page](https://appshunter.io/ios/app/id1642265206)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThetaWave

[App page](https://appshunter.io/ios/app/thetawave-ai-study-notes/id6744060956)

This AI-powered study assistant transforms various learning materials into structured notes, mind maps, flashcards, and quizzes. It helps users learn faster, understand deeper, and retain information longer through intelligent summarization and Q&A capabilities.

**Highlights:** Auto-structured AI notes, Flashcards and quizzes, AI summary and deep Q&A, Mind map generation, Progress tracking, Supports video, audio, PDF, images, and text

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThetaWave Pro Monthly | $21.99 | per month |
| ThetaWave Pro Month | $21.99 | per month |
| ThetaWave Pro Quarterly | $47.90 | per 3 months |
| Pro | $47.90 | per 3 months |
| ThetaWave Pro Annual | $118.99 | per year |
| ThetaWave Pro Year | $118.99 | per year |
| Pro | $118.99 | per year |


## Frequently asked questions

### Is 展望諸羅城 free?

展望諸羅城 is free to download, with no in-app purchases.

### Is ThetaWave free?

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

### Do 展望諸羅城 or ThetaWave have ads?

ThetaWave shows ads; 展望諸羅城 does not.

### Which is updated more often, 展望諸羅城 or ThetaWave?

展望諸羅城 ships an update every 38 months, and ThetaWave fortnightly. Most recently, 展望諸羅城 was updated on October 30, 2026 and ThetaWave on November 8, 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.*