# specimen · renato.design vs STEP Reviewer Pro

The clearest difference is in-app purchases: specimen · renato.design at none against STEP Reviewer Pro's 10. specimen · renato.design also leads on update cadence (every 2 days vs every 10 days) and iOS requirement (18.1 vs 26.0). STEP Reviewer Pro's advantage is device support (4 vs 1). On price and ads there is nothing between them.

Both are free to download. STEP Reviewer Pro sells 10 one-off in-app purchases. specimen · renato.design asks for nothing beyond the download.

specimen · renato.design ships an update every 2 days, STEP Reviewer Pro every 10 days. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | specimen · renato.design | STEP Reviewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Size | 2 MB | 43 MB |
| Requires iOS | **18.1** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Phillip Renato](https://appshunter.io/developer/1886293730) | [Shanghai Fuwei Information Technology Co., Ltd.](https://appshunter.io/developer/6801400882) |

## What reviewers say

### specimen · renato.design

[App page](https://appshunter.io/ios/app/specimen-renatodesign/id6762842287)

**In-app purchases:** none


### STEP Reviewer Pro

[App page](https://appshunter.io/ios/app/step-reviewer-pro/id6791591460)

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USDA Export | $6.99 | one-time |
| USDC Export | $6.99 | one-time |
| USDZ Export | $6.99 | one-time |
| Review Report Export | $14.99 | one-time |
| Screen Recording | $14.99 | one-time |
| STL Export | $19.99 | one-time |
| GLB Export | $19.99 | one-time |
| Parts Export | $24.99 | one-time |
| Exploded View | $24.99 | one-time |
| Unlimited Measurements | $24.99 | one-time |


## Frequently asked questions

### Is specimen · renato.design free?

specimen · renato.design is free to download, with no in-app purchases.

### Is STEP Reviewer Pro free?

STEP Reviewer Pro is free to download, with in-app purchases available.

### Do specimen · renato.design or STEP Reviewer Pro have ads?

Neither specimen · renato.design nor STEP Reviewer Pro shows ads.

### Which is updated more often, specimen · renato.design or STEP Reviewer Pro?

specimen · renato.design ships an update every 2 days, and STEP Reviewer Pro every 10 days. Most recently, specimen · renato.design was updated on November 9, 2026 and STEP Reviewer Pro on November 2, 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.*