# Stream Vision Ballistics vs 509

The clearest difference is rating: Stream Vision Ballistics at 4.6 against 509's 2.5. Stream Vision Ballistics also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). 509's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

Stream Vision Ballistics holds the better App Store score, 4.6 against 2.5. Both are backed by a comparable volume of ratings — 135 and 47 respectively. Written reviews point the same way: 42% of Stream Vision Ballistics's written reviews are positive against 21% of 509's.

Stream Vision Ballistics ships an update every 2 months, 509 every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Stream Vision Ballistics | 509 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (135 ratings)](https://appshunter.io/ios/app/stream-vision-ballistics/id1530158169/reviews)** | [2.5 (47 ratings)](https://appshunter.io/ios/app/509/id1592726706/reviews) |
| Number of ratings | **135** | 47 |
| Positive reviews | **41.7% of reviews** | 21.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 85 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Yukon Advanced Optics Worldwide](https://appshunter.io/developer/976466453) | [Teton Outfitters LLC](https://appshunter.io/developer/1478614281) |

## What reviewers say

### Stream Vision Ballistics

[App page](https://appshunter.io/ios/app/stream-vision-ballistics/id1530158169)

This app provides precise long-range shooting calculations for riflescopes. It offers advanced ballistic algorithms, ammunition profile management, and weather-based corrections. Connect to compatible devices for enhanced functionality.

**Highlights:** Precise ballistic algorithm, Upload profiles to Pulsar riflescopes, Unlimited ballistic profiles, Updatable ammunition database, Custom hand-loaded ammunition support, Graphic and chart output, Weather-based correction calculation

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

**In-app purchases:** none


### 509

[App page](https://appshunter.io/ios/app/509/id1592726706)

Control and customize heated goggles for optimal vision in any weather. Access an online store, watch snowmobile films, and receive product updates. Stay fog-free and prepared for winter adventures.

**Highlights:** Wireless heat profile customization, Auto and manual anti-fog modes, Online store access, Latest product release updates, Watch snowmobile films, Customer service access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stream Vision Ballistics free?

Stream Vision Ballistics is free to download, with no in-app purchases.

### Is 509 free?

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

### Which has better reviews, Stream Vision Ballistics or 509?

Stream Vision Ballistics is rated higher. Stream Vision Ballistics averages 4.6 out of 5 from 135 ratings, while 509 averages 2.5 from 47 ratings.

### Do Stream Vision Ballistics or 509 have ads?

509 shows ads; Stream Vision Ballistics does not.

### Which is updated more often, Stream Vision Ballistics or 509?

Stream Vision Ballistics ships an update every 2 months, and 509 every 3 months. Most recently, Stream Vision Ballistics was updated on October 24, 2026 and 509 on October 24, 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.*