# DocScanner：PDF Scanner App vs TT变声器

The clearest difference is ratings volume: TT变声器 at 4 against DocScanner：PDF Scanner App's 1. TT变声器 also leads on iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. DocScanner：PDF Scanner App sells 3 in-app purchases, starting at $7.99 per 7 days and TT变声器 sells 9 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for DocScanner：PDF Scanner App against 5.0 for TT变声器. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 100% of DocScanner：PDF Scanner App's written reviews are positive against 96% of TT变声器's.

DocScanner：PDF Scanner App ships an update every 3 days, TT变声器 every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DocScanner：PDF Scanner App | TT变声器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/docscannerpdf-scanner-app/id6752327246/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/tt-ai-and/id6787637552/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 95.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Freemium | Freemium |
| Size | 6 MB | 34 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广州蜂羽云科技有限公司](https://appshunter.io/developer/1509598490) | [昌荣 于](https://appshunter.io/developer/1734231816) |

## What reviewers say

### DocScanner：PDF Scanner App

[App page](https://appshunter.io/ios/app/docscannerpdf-scanner-app/id6752327246)

This app transforms your mobile device into a powerful scanner and document converter. Easily capture documents, extract text, translate content, and convert files between various formats like PDF, Word, and PPT.

**Highlights:** Mobile document scanning, OCR text extraction, Photo translation, PDF to various format conversion, Image optimization, Watermark-free exports (premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $7.99 | per 7 days |
| Monthly subscription | $19.99 | per month |
| Annual subscription | $34.99 | per year |


### TT变声器

[App page](https://appshunter.io/ios/app/tt-ai-and/id6787637552)

This AI-powered tool transforms text into natural-sounding speech with a variety of voices. It offers features like voice cloning, sound design, and parameter adjustments for custom audio creation. Ideal for content creators needing expressive voiceovers.

**Highlights:** Text-to-speech generation, AI voice cloning, Customizable voice parameters, Multiple voice styles and emotions, Audio saving and sharing, Sound design capabilities

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8元一周 | $1.99 | per 7 days |
| 18元一周 | $2.99 | per 7 days |
| 28元一月 | $3.99 | per month |
| 58元一月 | $7.99 | per month |
| 128元一年 | $19.99 | per year |
| 8元礼包 | $0.99 | one-time |
| 18元礼包 | $2.99 | one-time |
| 38元礼包 | $4.99 | one-time |
| 永久会员 | $29.99 | one-time |


## Frequently asked questions

### Is DocScanner：PDF Scanner App free?

DocScanner：PDF Scanner App is free to download, with in-app purchases available.

### Is TT变声器 free?

TT变声器 is free to download, with in-app purchases available.

### Which has better reviews, DocScanner：PDF Scanner App or TT变声器?

DocScanner：PDF Scanner App and TT变声器 are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do DocScanner：PDF Scanner App or TT变声器 have ads?

Neither DocScanner：PDF Scanner App nor TT变声器 shows ads.

### Which is updated more often, DocScanner：PDF Scanner App or TT变声器?

DocScanner：PDF Scanner App ships an update every 3 days, and TT变声器 every 5 days. Most recently, DocScanner：PDF Scanner App was updated on October 30, 2026 and TT变声器 on October 31, 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.*