# AI Guard vs FPT eInvoice

The clearest difference is iOS requirement: FPT eInvoice at 12.0 against AI Guard's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AI Guard | FPT eInvoice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 74 MB | 42 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bkav Corporation](https://appshunter.io/developer/532814714) | [FPT IS Company Limited](https://appshunter.io/developer/1437861502) |

## What reviewers say

### AI Guard

[App page](https://appshunter.io/ios/app/ai-guard/id1626931436)

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

**In-app purchases:** none


### FPT eInvoice

[App page](https://appshunter.io/ios/app/fpt-einvoice/id1631267280)

**In-app purchases:** none


## Frequently asked questions

### Is AI Guard free?

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

### Is FPT eInvoice free?

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

### Do AI Guard or FPT eInvoice have ads?

Neither AI Guard nor FPT eInvoice shows ads.

### Which is updated more often, AI Guard or FPT eInvoice?

AI Guard ships an update every 3 weeks, and FPT eInvoice every 3 weeks. Most recently, AI Guard was updated on October 21, 2026 and FPT eInvoice on October 27, 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.*