# Subzero IoT vs VIN Decoder & History

The clearest difference is in-app purchases: Subzero IoT at none against VIN Decoder & History's 2. Subzero IoT also leads on iOS requirement (11.0 vs 16.0). VIN Decoder & History's advantage is update cadence (every 2 months vs every 15 months). On price, ads and device support there is nothing between them.

Both are free to download. VIN Decoder & History sells 2 in-app purchases, starting at $39.99 per year. Subzero IoT asks for nothing beyond the download.

Subzero IoT ships an update every 15 months, VIN Decoder & History every 2 months. The most recent releases landed on May 16, 2026 and June 26, 2026 respectively.

## The numbers

| Metric | Subzero IoT | VIN Decoder & History |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vin-decoder-and-history-ocr/id6496864400/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 88 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [PVR Controls](https://appshunter.io/developer/1637087825) | [The Higgs Design Company Limited](https://appshunter.io/developer/1831488586) |

## What reviewers say

### Subzero IoT

[App page](https://appshunter.io/ios/app/subzero-iot/id1637087823)

**In-app purchases:** none


### VIN Decoder & History

[App page](https://appshunter.io/ios/app/vin-decoder-and-history-ocr/id6496864400)

Decode VIN numbers from images and learn about their encoded data. Save your VIN history within the app or export it as a CSV report. Offers a premium annual subscription for enhanced features.

**Highlights:** Decode VIN codes, Identify VINs from images via OCR, Save VIN history, Export history to CSV, Premium subscription available

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIN Decoder Premium Annual | $39.99 | per year |
| VIN Decoder Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is Subzero IoT free?

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

### Is VIN Decoder & History free?

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

### Do Subzero IoT or VIN Decoder & History have ads?

Neither Subzero IoT nor VIN Decoder & History shows ads.

### Which is updated more often, Subzero IoT or VIN Decoder & History?

Subzero IoT ships an update every 15 months, and VIN Decoder & History every 2 months. Most recently, Subzero IoT was updated on May 16, 2026 and VIN Decoder & History on June 26, 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.*