# VIN Decoder Pro vs Happi

The clearest difference is in-app purchases: Happi at none against VIN Decoder Pro's 2. Happi also leads on ads (none vs shown). VIN Decoder Pro's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price and update cadence there is nothing between them.

Both are free to download. VIN Decoder Pro sells 2 one-off in-app purchases. Happi asks for nothing beyond the download.

VIN Decoder Pro ships an update every 6 weeks, Happi every 2 months. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | VIN Decoder Pro | Happi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 39 MB | 5 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tran Hoa](https://appshunter.io/developer/1413218457) | [Panchapakesan Vaidyanathan](https://appshunter.io/developer/978588757) |

## What reviewers say

### VIN Decoder Pro

[App page](https://appshunter.io/ios/app/vin-decoder-pro/id6740048109)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate for developer | $0.99 | one-time |
| PACKAGE HIDE ADS | $3.99 | one-time |


### Happi

[App page](https://appshunter.io/ios/app/happi-hrmspayrollaccounting/id6740057687)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VIN Decoder Pro free?

VIN Decoder Pro is free to download, with in-app purchases available.

### Is Happi free?

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

### Do VIN Decoder Pro or Happi have ads?

VIN Decoder Pro shows ads; Happi does not.

### Which is updated more often, VIN Decoder Pro or Happi?

VIN Decoder Pro ships an update every 6 weeks, and Happi every 2 months. Most recently, VIN Decoder Pro was updated on October 2, 2026 and Happi on October 12, 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.*