# Twin vs Certify

The clearest difference is device support: Twin at 3 against Certify's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Twin sells 2 in-app purchases, starting at $1.99 per month and Certify sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Twin ships an update fortnightly, Certify weekly. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Twin | Certify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/twin-scans-for-passthrough/id6499172465/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [1984 LLC](https://appshunter.io/developer/1089433935) | [Jhomar Maravillas](https://appshunter.io/developer/6783703541) |

## What reviewers say

### Twin

[App page](https://appshunter.io/ios/app/twin-scans-for-passthrough/id6499172465)

Create 3D digital twins of your physical items using your iPhone or iPad. Seamlessly bring these models into your Apple Vision Pro environment for immersive experiences. Explore your creations with advanced filters and organization tools.

**Highlights:** Create 3D models using photogrammetry, View models in visionOS environments, Apply filters and colorways to models, Automatic syncing between Apple devices, Organize models with search and sorting, Browse and place models on Apple Vision Pro

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Annual | $9.99 | per year |


### Certify

[App page](https://appshunter.io/ios/app/certify-certificate-maker/id6792487548)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is Twin free?

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

### Is Certify free?

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

### Do Twin or Certify have ads?

Neither Twin nor Certify shows ads.

### Which is updated more often, Twin or Certify?

Twin ships an update fortnightly, and Certify weekly. Most recently, Twin was updated on October 5, 2026 and Certify on October 13, 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.*