# STEP File Viewer vs Coupon Distributor

The clearest difference is rating: Coupon Distributor at 5.0 against STEP File Viewer's 3.2. Coupon Distributor also leads on review sentiment (100% vs 63%). STEP File Viewer's advantage is ratings volume (6 vs 2) and iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. STEP File Viewer sells 12 in-app purchases, starting at $1.99 per 7 days and Coupon Distributor sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Coupon Distributor holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 63% of STEP File Viewer's written reviews are positive against 100% of Coupon Distributor's.

STEP File Viewer ships an update fortnightly, Coupon Distributor weekly. The most recent releases landed on October 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | STEP File Viewer | Coupon Distributor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/step-file-viewer/id6755721056/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/coupon-distributor/id6757699024/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 14 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [维 艾](https://appshunter.io/developer/1771300149) | [renwei han](https://appshunter.io/developer/1725133580) |

## What reviewers say

### STEP File Viewer

[App page](https://appshunter.io/ios/app/step-file-viewer/id6755721056)

View and interact with 3D CAD files like STEP and IGES. Inspect internal geometry, measure dimensions, and export models in various formats. Ideal for engineers, designers, and students needing to visualize complex designs without expensive software.

**Highlights:** 3D model viewing with pan, zoom, and rotate, Solid, shaded, and wireframe display modes, Measure dimensions and features, Section planes for internal geometry inspection, Export models to STL, OBJ, glTF, and more, Supports assembly data and PMI annotations

**Features:** Family Sharing, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Flex | $1.99 | per 7 days |
| Pro Light | $4.99 | per month |
| Pro Infinity | $19.99 | per year |
| Export as USDZ | $1.99 | one-time |
| Export as PNG | $2.99 | one-time |
| Export as OBJ | $3.99 | one-time |
| Export as STL | $3.99 | one-time |
| IGES/STEP Model Import | $3.99 | one-time |
| Projection view generation & export | $4.99 | one-time |
| Cross Section View | $4.99 | one-time |
| Exploded View | $4.99 | one-time |
| Export all formats | $15.99 | one-time |


### Coupon Distributor

[App page](https://appshunter.io/ios/app/coupon-distributor/id6757699024)

Manage and distribute App Store promotional codes for your iOS apps. Organize codes, track their status, and share them easily via messages or email. Keep all your distribution data private and local.

**Highlights:** Organize promo codes by app, Create custom promotional offers, Import codes via CSV, Track code status (Available, Shared, Used), Distribute codes via Messages, Email, AirDrop, Record recipient names, Local data storage for privacy

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pass | $0.99 | per month |
| Yearly Pass | $2.99 | per year |
| Lifetime Pass | $3.99 | one-time |


## Frequently asked questions

### Is STEP File Viewer free?

STEP File Viewer is free to download, with in-app purchases available.

### Is Coupon Distributor free?

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

### Which has better reviews, STEP File Viewer or Coupon Distributor?

Coupon Distributor is rated higher. STEP File Viewer averages 3.2 out of 5 from 6 ratings, while Coupon Distributor averages 5.0 from 2 ratings.

### Do STEP File Viewer or Coupon Distributor have ads?

Neither STEP File Viewer nor Coupon Distributor shows ads.

### Which is updated more often, STEP File Viewer or Coupon Distributor?

STEP File Viewer ships an update fortnightly, and Coupon Distributor weekly. Most recently, STEP File Viewer was updated on October 30, 2026 and Coupon Distributor on October 14, 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.*