# ALVA vs CarbSync

The clearest difference is in-app purchases: CarbSync at none against ALVA's 9. CarbSync also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ALVA sells 9 in-app purchases, starting at $4.99 per 7 days. CarbSync asks for nothing beyond the download.

## The numbers

| Metric | ALVA | CarbSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (53 ratings)](https://appshunter.io/ios/app/alva-ingredient-risk-scanner/id6508024770/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 4 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [VBS LTD](https://appshunter.io/developer/1755376038) | [文权 刘](https://appshunter.io/developer/1874766464) |

## What reviewers say

### ALVA

[App page](https://appshunter.io/ios/app/alva-ingredient-risk-scanner/id6508024770)

Instantly scan products for toxic ingredients, allergens, and hormone disruptors. Get personalized insights for specific health concerns and discover safer alternatives for food, beauty, and personal care items.

**Highlights:** Scan products for toxic ingredients, Analyze allergens and hormone disruptors, Personalized risk profiles, Discover safe alternatives, Covers food, beauty, and personal care

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Monthly Pro subscription | $12.99 | per month |
| 3 Month Pro | $19.99 | per 3 months |
| Alva ULTRA | $49.99 | per year |
| Pro yearly subscription | $99.99 | per year |
| 1 Scan | $1.99 | one-time |
| 10 Scans | $4.99 | one-time |
| 100 Scans | $29.99 | one-time |
| Lifetime Pro | $299.00 | one-time |


### CarbSync

[App page](https://appshunter.io/ios/app/carbsync-macro-tracker/id6758784101)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ALVA free?

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

### Is CarbSync free?

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

### Do ALVA or CarbSync have ads?

ALVA shows ads; CarbSync does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*