# TrueOrigin vs Blue Ocean

TrueOrigin and Blue Ocean are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | TrueOrigin | Blue Ocean |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 37 MB | 57 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onyx Viet Nam](https://appshunter.io/developer/1621007684) | [Do Khac Chung](https://appshunter.io/developer/1876558206) |

## What reviewers say

### TrueOrigin

[App page](https://appshunter.io/ios/app/trueorigin/id1576464807)

This app provides a dynamic digital signature solution to authenticate and prevent counterfeiting of stamps. It offers a novel approach to verifying authenticity directly from the source.

**Highlights:** Dynamic digital signatures, Stamp authentication, Counterfeit prevention, Root-level verification

**Features:** macOS Compatibility

**In-app purchases:** none


### Blue Ocean

[App page](https://appshunter.io/ios/app/blue-ocean/id6794600318)

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

**In-app purchases:** none


## Frequently asked questions

### Is TrueOrigin free?

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

### Is Blue Ocean free?

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

### Do TrueOrigin or Blue Ocean have ads?

Neither TrueOrigin nor Blue Ocean shows ads.

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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.*