# TimeZero vs 3D Model Viewer & Converter

The clearest difference is rating: TimeZero at 3.0 against 3D Model Viewer & Converter's 1.5. 3D Model Viewer & Converter's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. TimeZero sells 1 one-off in-app purchase and 3D Model Viewer & Converter sells 14 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

TimeZero holds the better App Store score, 3.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

TimeZero ships an update every 2 months, 3D Model Viewer & Converter every 3 weeks. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | TimeZero | 3D Model Viewer & Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/timezero-countdown-timer/id6747039530/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/3d-model-viewer-and-converter/id6748610196/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 110 MB | 18 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Eyermin Colon Sanchez](https://appshunter.io/developer/1123699337) | [维 艾](https://appshunter.io/developer/1771300149) |

## What reviewers say

### TimeZero

[App page](https://appshunter.io/ios/app/timezero-countdown-timer/id6747039530)

Easily track important future dates with a visually appealing countdown. Customize events with colors and emojis, receive smart notifications, and view real-time progress in days, hours, minutes, and seconds. Perfect for students, couples, parents, travelers, and professionals.

**Highlights:** Countdown to any event, Customize events with colors and emoji, Real-time countdowns (days, hours, minutes, seconds), Smart notifications, Home screen widgets

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TimeZero Countdown Full | $0.99 | one-time |


### 3D Model Viewer & Converter

[App page](https://appshunter.io/ios/app/3d-model-viewer-and-converter/id6748610196)

This tool allows you to open, view, and convert a wide variety of 3D file formats on your Apple devices. It offers basic editing, cross-sectioning, and exploded views, with options for batch conversion and exporting projected views.

**Highlights:** Import numerous 3D formats, Convert between popular 3D formats, Basic editing tools, Cross-section and exploded views, Batch export support, Export projected views as SVG, Offline functionality

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Flex | $2.99 | per 7 days |
| Pro Light | $9.99 | per month |
| Pro Infinity | $59.99 | per year |
| Export as PNG | $2.99 | one-time |
| Export as OBJ | $3.99 | one-time |
| Export as USDZ | $3.99 | one-time |
| Export as GLTF/GLB | $3.99 | one-time |
| Export as STL | $3.99 | one-time |
| Exploded View | $4.99 | one-time |
| Unlock Batch Export | $4.99 | one-time |
| Unlock Projection View Export | $4.99 | one-time |
| Cross Section View | $6.99 | one-time |
| Unlock Batch Export | $9.99 | one-time |
| Export all formats | $16.99 | one-time |


## Frequently asked questions

### Is TimeZero free?

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

### Is 3D Model Viewer & Converter free?

3D Model Viewer & Converter is free to download, with in-app purchases available.

### Which has better reviews, TimeZero or 3D Model Viewer & Converter?

TimeZero is rated higher. TimeZero averages 3.0 out of 5 from 2 ratings, while 3D Model Viewer & Converter averages 1.5 from 2 ratings.

### Do TimeZero or 3D Model Viewer & Converter have ads?

TimeZero shows ads; 3D Model Viewer & Converter does not.

### Which is updated more often, TimeZero or 3D Model Viewer & Converter?

TimeZero ships an update every 2 months, and 3D Model Viewer & Converter every 3 weeks. Most recently, TimeZero was updated on October 2, 2026 and 3D Model Viewer & Converter on September 22, 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.*