# Converter AM vs PDF Vault

The clearest difference is review sentiment: Converter AM at 67% against PDF Vault's 50%. Converter AM also leads on device support (5 vs 3) and iOS requirement (15.0 vs 18.1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Converter AM sells 3 in-app purchases, starting at $0.99 per month and PDF Vault sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Converter AM ships an update every 2 weeks, PDF Vault fortnightly. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Converter AM | PDF Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (516 ratings)](https://appshunter.io/ios/app/converter-am/id1450259074/reviews)** | — |
| Number of ratings | **516** | — |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 4 MB |
| Requires iOS | **15.0** | 18.1 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Maier](https://appshunter.io/developer/454364359) | [Dmytro Skorokhod](https://appshunter.io/developer/994177751) |

## What reviewers say

### Converter AM

[App page](https://appshunter.io/ios/app/converter-am/id1450259074)

This app converts units and currencies with a focus on simple user guidance. It allows for real-time conversion as you type and can also function as a basic calculator. The interface is designed to remain uncomplicated even with future optimizations.

**Highlights:** Real-time unit conversion, Currency conversion, Basic arithmetic calculator, Customizable units, Simple user interface

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| Premium version without ads | $9.99 | one-time |

**What reviewers like**

- 👍 Free and brilliant app
- 👍 Works the way it should
- 👍 Easy to use
- 👍 Handy on mobile
- 👍 Great for various unit equivalences

**What reviewers complain about**

- 😠 Forced to watch obnoxious ads
- 😠 App freezes on ads
- 😠 Ads are intrusive
- 😠 Paid for ad-free, but ads returned
- 😠 Forced purchase of ad-free

**Reported bugs**

- App freezes on ads and cannot be closed
- Ads returned after purchasing ad-free version

**Requested features**

- Remember previously used units
- Support for kilos to stones and pounds conversion


### PDF Vault

[App page](https://appshunter.io/ios/app/pdf-vault-document-app/id1599303874)

This ultra-lightweight application offers a comprehensive suite of PDF tools, including text-to-speech functionality, digital signing, document scanning, organization, and instant translation. It's designed for efficiency and ease of use, saving device space while enhancing productivity for work, study, or personal tasks.

**Highlights:** Text-to-speech for PDFs, Digital document signing, Scan paper documents to PDF, Organize and manage PDF files, Instant document translation, Ultra-lightweight and fast

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mox PDF Tool Unlimited Monthly | $4.99 | per month |
| Mox PDF Tool Unlimited Annually | $19.99 | per year |


## Frequently asked questions

### Is Converter AM free?

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

### Is PDF Vault free?

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

### Do Converter AM or PDF Vault have ads?

Neither Converter AM nor PDF Vault shows ads.

### Which is updated more often, Converter AM or PDF Vault?

Converter AM ships an update every 2 weeks, and PDF Vault fortnightly. Most recently, Converter AM was updated on October 15, 2026 and PDF Vault on October 12, 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.*