# 优迪GPS vs SDFly

The clearest difference is iOS requirement: 优迪GPS at 9.0 against SDFly's 12.0. On price, update cadence, ads 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.

优迪GPS ships an update monthly, SDFly every 3 weeks. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 优迪GPS | SDFly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (11 ratings)](https://appshunter.io/ios/app/sdfly/id1548259330/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 77 MB | 40 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [泽 刘](https://appshunter.io/developer/1234523297) | [Shenzhen SwellPro Technology Co.,LTD](https://appshunter.io/developer/1113943094) |

## What reviewers say

### 优迪GPS

[App page](https://appshunter.io/ios/app/gps/id1420023569)

**Features:** macOS Compatibility

**In-app purchases:** none


### SDFly

[App page](https://appshunter.io/ios/app/sdfly/id1548259330)

Control your drone with live HD viewing, adjust camera and gimbal settings, and plan complex flight missions. Share your aerial footage through live streaming on popular platforms. Supports joint operations with multiple devices.

**Highlights:** Live HD viewing, Live HD streaming, Aircraft and gimbal control, Mission planning, Various flight modes, Multi-device connection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 优迪GPS free?

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

### Is SDFly free?

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

### Do 优迪GPS or SDFly have ads?

Neither 优迪GPS nor SDFly shows ads.

### Which is updated more often, 优迪GPS or SDFly?

优迪GPS ships an update monthly, and SDFly every 3 weeks. Most recently, 优迪GPS was updated on October 3, 2026 and SDFly on October 12, 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.*