# Dupon Protech vs BlitzBayi

The clearest difference is update cadence: BlitzBayi at every 2 weeks against Dupon Protech's every 3 months. Dupon Protech's advantage is iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dupon Protech ships an update every 3 months, BlitzBayi every 2 weeks. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Dupon Protech | BlitzBayi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 78 MB | 3 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ismail tolga zingal](https://appshunter.io/developer/1879731927) | [BlitzPower Iletisim](https://appshunter.io/developer/6805885742) |

## What reviewers say

### Dupon Protech

[App page](https://appshunter.io/ios/app/dupon-protech/id6759595767)

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

**In-app purchases:** none


### BlitzBayi

[App page](https://appshunter.io/ios/app/blitzbayi/id6805885740)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dupon Protech free?

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

### Is BlitzBayi free?

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

### Do Dupon Protech or BlitzBayi have ads?

Neither Dupon Protech nor BlitzBayi shows ads.

### Which is updated more often, Dupon Protech or BlitzBayi?

Dupon Protech ships an update every 3 months, and BlitzBayi every 2 weeks. Most recently, Dupon Protech was updated on October 13, 2026 and BlitzBayi on October 24, 2026.

---

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