# VaultLock vs FlashMath Go

The clearest difference is in-app purchases: VaultLock at none against FlashMath Go's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FlashMath Go sells 1 one-off in-app purchase. VaultLock asks for nothing beyond the download.

## The numbers

| Metric | VaultLock | FlashMath Go |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shintae Park](https://appshunter.io/developer/1829258738) | [化工 刘](https://appshunter.io/developer/629597146) |

## What reviewers say

### VaultLock

[App page](https://appshunter.io/ios/app/vaultlock-secure-files-and-docs/id6762361755)

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

**In-app purchases:** none


### FlashMath Go

[App page](https://appshunter.io/ios/app/flashmath-go/id6768545785)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro – Lifetime Unlock | $1.99 | one-time |


## Frequently asked questions

### Is VaultLock free?

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

### Is FlashMath Go free?

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

### Do VaultLock or FlashMath Go have ads?

Neither VaultLock nor FlashMath Go shows ads.

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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.*