# Smart Invoice vs Aura Auth

The clearest difference is ads: Aura Auth at none against Smart Invoice's shown. Aura Auth also leads on update cadence (weekly vs every 3 months). Smart Invoice's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Smart Invoice sells 2 in-app purchases, starting at $6.99 per 7 days and Aura Auth sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Smart Invoice ships an update every 3 months, Aura Auth weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Smart Invoice | Aura Auth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aura-auth-passkeys-and-2fa/id6760648010/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 63 MB | 105 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CW Lee](https://appshunter.io/developer/1468639016) | [盼宁 邵](https://appshunter.io/developer/1883077979) |

## What reviewers say

### Smart Invoice

[App page](https://appshunter.io/ios/app/smart-invoice/id1516600182)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Annually Subscription | $69.99 | per year |


### Aura Auth

[App page](https://appshunter.io/ios/app/aura-auth-passkeys-and-2fa/id6760648010)

Securely manage your digital life with passkeys and two-factor authentication codes in a single, organized app. It offers multiple ways to add codes, built-in protection, and visual setup guides for popular services. Back up your data easily with iCloud or JSON export.

**Highlights:** Passkeys and 2FA codes in one place, Multiple 2FA code addition methods, Passkey creation and management, App Lock and biometric protection, iCloud backup and JSON export, Visual setup guides for services

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Membership | $9.99 | per 7 days |
| VIP Membership | $39.99 | per year |
| VIP Membership | $59.99 | one-time |


## Frequently asked questions

### Is Smart Invoice free?

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

### Is Aura Auth free?

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

### Do Smart Invoice or Aura Auth have ads?

Smart Invoice shows ads; Aura Auth does not.

### Which is updated more often, Smart Invoice or Aura Auth?

Smart Invoice ships an update every 3 months, and Aura Auth weekly. Most recently, Smart Invoice was updated on October 27, 2026 and Aura Auth on October 28, 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.*