# ENGINE SHARK vs DomainCERTin

The clearest difference is in-app purchases: ENGINE SHARK at none against DomainCERTin's 10. ENGINE SHARK also leads on iOS requirement (12.4 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DomainCERTin sells 10 one-off in-app purchases. ENGINE SHARK asks for nothing beyond the download.

ENGINE SHARK ships an update every 2 months, DomainCERTin monthly. Both last shipped on October 7, 2026.

## The numbers

| Metric | ENGINE SHARK | DomainCERTin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/engine-shark/id1460687516/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 110 MB | 177 MB |
| Requires iOS | **12.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [World Quest Media Group, LLC](https://appshunter.io/developer/1771662727) | [BlockCerts](https://appshunter.io/developer/1478391176) |

## What reviewers say

### ENGINE SHARK

[App page](https://appshunter.io/ios/app/engine-shark/id1460687516)

This app helps entrepreneurs bring their business ideas to life by handling branding, entity establishment, logo design, website creation, and social media management. It offers a comprehensive solution for launching and growing a new venture.

**Highlights:** Business name search, Entity establishment, Logo design, Website creation, Social media management

**Features:** macOS Compatibility

**In-app purchases:** none


### DomainCERTin

[App page](https://appshunter.io/ios/app/domaincertin/id6445944364)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 10 Black BCERTs Credits | $1.99 | one-time |
| Buy 20 Black BCERTs Credits | $3.79 | one-time |
| Buy 30 Black BCERTs Credits | $5.69 | one-time |
| Buy 50 Black BCERTs Credits | $9.49 | one-time |
| Buy 75 Black BCERTs Credits | $14.49 | one-time |
| Buy 100 Black BCERTs Credits | $19.00 | one-time |
| Buy 125 Black BCERTs Credits | $23.90 | one-time |
| Buy 150 Black BCERTs Credits | $28.49 | one-time |
| Buy 200 Black BCERTs Credits | $38.00 | one-time |
| Buy 5 BCERT Credits | $100.00 | one-time |


## Frequently asked questions

### Is ENGINE SHARK free?

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

### Is DomainCERTin free?

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

### Do ENGINE SHARK or DomainCERTin have ads?

Neither ENGINE SHARK nor DomainCERTin shows ads.

### Which is updated more often, ENGINE SHARK or DomainCERTin?

ENGINE SHARK ships an update every 2 months, and DomainCERTin monthly. Most recently, ENGINE SHARK was updated on October 7, 2026 and DomainCERTin on October 7, 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.*