# セリフ暗記 vs PDFkai

The clearest difference is in-app purchases: PDFkai at none against セリフ暗記's 4. PDFkai also leads on update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. セリフ暗記 sells 4 in-app purchases, starting at $2.99 per month. PDFkai asks for nothing beyond the download.

セリフ暗記 ships an update weekly, PDFkai every 2 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | セリフ暗記 | PDFkai |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 30 MB | 1 MB |
| Requires iOS | **17.0** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kodai Hiradate](https://appshunter.io/developer/1475852802) | [Kohei YAMAMOTO](https://appshunter.io/developer/1886637159) |

## What reviewers say

### セリフ暗記

[App page](https://appshunter.io/ios/app/id6759306767)

This app helps actors and voice actors practice lines with an AI partner. It offers three modes: listen, practice, and test, allowing for solo rehearsal anytime, anywhere. Easily import scripts and practice hands-free with background playback.

**Highlights:** AI partner for line reading, Three practice modes (Listen, Practice, Test), Automatic script structuring, Background playback, Hands-free control with AirPods, Sample scripts for free trial

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SerifuAI Share | $2.99 | per month |
| SerifuAI Pro | $11.99 | per month |
| SerifuAI Share (Annual) | $29.99 | per year |
| SerifuAI Pro (Annual) | $119.99 | per year |


### PDFkai

[App page](https://appshunter.io/ios/app/pdfkai/id6760888905)

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

**In-app purchases:** none


## Frequently asked questions

### Is セリフ暗記 free?

セリフ暗記 is free to download, with in-app purchases available.

### Is PDFkai free?

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

### Do セリフ暗記 or PDFkai have ads?

Neither セリフ暗記 nor PDFkai shows ads.

### Which is updated more often, セリフ暗記 or PDFkai?

セリフ暗記 ships an update weekly, and PDFkai every 2 days. Most recently, セリフ暗記 was updated on October 25, 2026 and PDFkai on October 14, 2026.

---

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