# QuickFill PDF vs Voice Changer

The clearest difference is ads: QuickFill PDF at none against Voice Changer's shown. Voice Changer's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QuickFill PDF ships an update every 4 months, Voice Changer every 3 months. Both last shipped on November 4, 2026.

## The numbers

| Metric | QuickFill PDF | Voice Changer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Ad-supported |
| Size | 1 MB | 39 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yujin Yano](https://appshunter.io/developer/924585449) | [MINOR BUGS](https://appshunter.io/developer/1560977130) |

## What reviewers say

### QuickFill PDF

[App page](https://appshunter.io/ios/app/quickfill-pdf/id6698850916)

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

**In-app purchases:** none


### Voice Changer

[App page](https://appshunter.io/ios/app/voice-changer-ai-audio-effect/id6737278217)

Transform your voice with advanced AI technology. Create realistic celebrity impressions, generate audio from text in various voices and languages, and customize sound effects for unique audio content. Easily share your creations with friends and family.

**Highlights:** Celebrity voice impressions, Text-to-speech with multiple voices, Customizable sound effects, Effortless sharing, Easy-to-use interface, Realistic AI voice transformations

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

**In-app purchases:** none


## Frequently asked questions

### Is QuickFill PDF free?

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

### Is Voice Changer free?

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

### Do QuickFill PDF or Voice Changer have ads?

Voice Changer shows ads; QuickFill PDF does not.

### Which is updated more often, QuickFill PDF or Voice Changer?

QuickFill PDF ships an update every 4 months, and Voice Changer every 3 months. Most recently, QuickFill PDF was updated on November 4, 2026 and Voice Changer on November 4, 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.*