# KeyBoltz vs PDF Reader

The clearest difference is ads: KeyBoltz at none against PDF Reader's shown. KeyBoltz also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). PDF Reader's advantage is update cadence (every 4 days vs fortnightly). On price and in-app purchases there is nothing between them.

Both are free to download. KeyBoltz sells 13 in-app purchases, starting at $0.99 per 7 days and PDF Reader sells 1 in-app purchase, starting at $19.99 per 7 days. Whichever you choose, the download price is not the number that matters.

KeyBoltz ships an update fortnightly, PDF Reader every 4 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KeyBoltz | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 33 MB | 85 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Infocare Technologies Private Limited](https://appshunter.io/developer/1054442499) | [truong nguyen xuan](https://appshunter.io/developer/552933291) |

## What reviewers say

### KeyBoltz

[App page](https://appshunter.io/ios/app/keyboltz/id6743022794)

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Test Subscription | $0.99 | per 7 days |
| Special Offer – Save 50% | $6.99 | per year |
| Special Offer – Save 45% | $7.49 | per year |
| Special Offer – Save 40% | $7.99 | per year |
| Special Offer – Save 35% | $8.49 | per year |
| Special Offer – Save 30% | $8.99 | per year |
| Special Offer – Save 25% | $9.49 | per year |
| Special Offer – Save 20% | $9.69 | per year |
| KeyBoltz - Subscription | $9.99 | per year |
| Special Offer – Save 15% | $10.49 | per year |
| Special Offer – Save 10% | $10.99 | per year |
| Special Offer – Save 5% | $11.49 | per year |
| KeyBoltz - Life Time | $19.99 | one-time |


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231)

This app is a fast and lightweight document viewer for PDF, Word, Excel, and PowerPoint files. It offers smart file management, offline access, and easy sharing, making it ideal for students and professionals. Enjoy a seamless reading experience with features like search, bookmarks, and dark mode.

**Highlights:** All-in-one document viewer (PDF, DOCX, XLSX, PPTX, TXT), Smart file manager, Offline document access, Fast and smooth performance, Search and bookmarking, Dark mode support, Easy document sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription - 1 week | $19.99 | per 7 days |


## Frequently asked questions

### Is KeyBoltz free?

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

### Is PDF Reader free?

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

### Do KeyBoltz or PDF Reader have ads?

PDF Reader shows ads; KeyBoltz does not.

### Which is updated more often, KeyBoltz or PDF Reader?

KeyBoltz ships an update fortnightly, and PDF Reader every 4 days. Most recently, KeyBoltz was updated on October 10, 2026 and PDF Reader on October 6, 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.*