# DOT dataCalc vs PDF Vault

The clearest difference is review sentiment: PDF Vault at 50% against DOT dataCalc's 13%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. DOT dataCalc sells 2 in-app purchases, starting at $1.99 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.

DOT dataCalc ships an update monthly, PDF Vault every 3 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | DOT dataCalc | PDF Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pdf-vault-document-app/id1599303874/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 12.5% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 1 MB | 4 MB |
| Requires iOS | **17.0** | 18.1 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [JOSE F DA SILVA NT](https://appshunter.io/developer/524992898) | [Dmytro Skorokhod](https://appshunter.io/developer/994177751) |

## What reviewers say

### DOT dataCalc

[App page](https://appshunter.io/ios/app/dot-datacalc/id524992895)

This app helps digital cinema and video professionals estimate storage needs for their recordings. It calculates file sizes based on chosen camera models, codecs, and recording durations. Access to all features may require a subscription.

**Highlights:** Instant storage estimation, Camera setup options, Supports numerous camera models, Calculates file size by recording time, Multiple codec support, Subscription for full features

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $4.99 | per year |


### 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 DOT dataCalc free?

DOT dataCalc 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 DOT dataCalc or PDF Vault have ads?

Neither DOT dataCalc nor PDF Vault shows ads.

### Which is updated more often, DOT dataCalc or PDF Vault?

DOT dataCalc ships an update monthly, and PDF Vault every 3 weeks. Most recently, DOT dataCalc was updated on November 1, 2026 and PDF Vault on November 7, 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.*