# Blackfin GPS vs emviPhone.

The clearest difference is update cadence: Blackfin GPS at every 4 days against emviPhone.'s every 3 months. Blackfin GPS also leads on iOS requirement (7.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Blackfin GPS ships an update every 4 days, emviPhone. every 3 months. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Blackfin GPS | emviPhone. |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free | — |
| Size | 170 MB | 50 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Guangdong Shiji Technology Co.,Ltd.](https://appshunter.io/developer/1405540461) | [Advicos](https://appshunter.io/developer/1721421339) |

## What reviewers say

### Blackfin GPS

[App page](https://appshunter.io/ios/app/blackfin-gps/id1385937229)

Control a toy quadrocopter using Wi-Fi with real-time video streaming. Compatible with a range of iOS devices.

**Highlights:** Wi-Fi quadrocopter control, Real-time video transfer, iOS device compatibility, Toy drone operation

**Features:** macOS Compatibility

**In-app purchases:** none


### emviPhone.

[App page](https://appshunter.io/ios/app/emviphone/id6475215145)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blackfin GPS free?

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

### Is emviPhone. free?

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

### Do Blackfin GPS or emviPhone. have ads?

Neither Blackfin GPS nor emviPhone. shows ads.

### Which is updated more often, Blackfin GPS or emviPhone.?

Blackfin GPS ships an update every 4 days, and emviPhone. every 3 months. Most recently, Blackfin GPS was updated on October 20, 2026 and emviPhone. on October 18, 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.*