# Proof Authentication vs Trovie

The clearest difference is review sentiment: Trovie at 92% against Proof Authentication's 50%. Trovie also leads on update cadence (weekly vs every 2 months) and rating (4.8 vs 4.4). On price, ratings volume, 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.

Trovie holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 7 and 19 respectively. Written reviews point the same way: 50% of Proof Authentication's written reviews are positive against 92% of Trovie's.

Proof Authentication ships an update every 2 months, Trovie weekly. The most recent releases landed on November 3, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Proof Authentication | Trovie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/proof-authentication/id1589988080/reviews) | **[4.8 (19 ratings)](https://appshunter.io/ios/app/trovie/id6791005697/reviews)** |
| Number of ratings | 7 | **19** |
| Positive reviews | 50.0% of reviews | **91.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 75 MB | 95 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Proof Authentication Corporation](https://appshunter.io/developer/1604240795) | [Trovie, Inc.](https://appshunter.io/developer/6785720362) |

## What reviewers say

### Proof Authentication

[App page](https://appshunter.io/ios/app/proof-authentication/id1589988080)

Verify product authenticity instantly by scanning official security marks. Ensure your purchases are genuine with rapid and accurate authentication. Look for the Proof Security Mark on select consumer goods.

**Highlights:** Instant product authentication, Scan Official Proof Security Marks, High accuracy verification, Fast results, Supports selected consumer items

**Features:** Vision Pro support

**In-app purchases:** none


### Trovie

[App page](https://appshunter.io/ios/app/trovie/id6791005697)

This app streamlines inventory management and sales tracking for trading card game vendors. It automates cost basis calculations, tracks buys, sells, and trades, and provides event-specific financial summaries. Collectors can view live inventory via QR codes without needing an app.

**Highlights:** Automated cost basis calculation, Unified buy, sell, and trade entry, Barcode scanning for sealed products, Event-specific financial scoreboards, Multi-staff booth management, Live inventory viewing for collectors, Support for multiple TCGs

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

**In-app purchases:** none


## Frequently asked questions

### Is Proof Authentication free?

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

### Is Trovie free?

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

### Which has better reviews, Proof Authentication or Trovie?

Trovie is rated higher. Proof Authentication averages 4.4 out of 5 from 7 ratings, while Trovie averages 4.8 from 19 ratings.

### Do Proof Authentication or Trovie have ads?

Neither Proof Authentication nor Trovie shows ads.

### Which is updated more often, Proof Authentication or Trovie?

Proof Authentication ships an update every 2 months, and Trovie weekly. Most recently, Proof Authentication was updated on November 3, 2026 and Trovie on November 1, 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.*