# HK FLY GPS vs Spectro

The clearest difference is rating: Spectro at 5.0 against HK FLY GPS's 3.0. HK FLY GPS's advantage is in-app purchases (none vs 3) and iOS requirement (8.0 vs 16.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Spectro sells 3 in-app purchases, starting at $1.99 per month. HK FLY GPS asks for nothing beyond the download.

Spectro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

HK FLY GPS ships an update every 3 weeks, Spectro monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | HK FLY GPS | Spectro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/hk-fly-gps/id1503859205/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/spectro-video-compressor/id6740755408/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 281 MB | 28 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [元明 苏](https://appshunter.io/developer/1320752705) | [Mengke WANG](https://appshunter.io/developer/361681925) |

## What reviewers say

### HK FLY GPS

[App page](https://appshunter.io/ios/app/hk-fly-gps/id1503859205)

This application serves as a companion for GPS-enabled drones, offering a stable and convenient smart flight experience. It allows users to control their drone, perform calibrations, and utilize features like multi-window views, photo and video transmission, and GPS-guided flight modes.

**Highlights:** GPS navigation for drones, Drone control interface, Gyroscope and compass calibration, Multi-window display, Photo and video transmission, GPS flight modes, Orbit flight

**Features:** macOS Compatibility

**In-app purchases:** none


### Spectro

[App page](https://appshunter.io/ios/app/spectro-video-compressor/id6740755408)

This app helps you reduce video file sizes while maintaining high quality. It offers smart optimization, hardware acceleration, and advanced encoding for efficient compression. Easily manage, compare, and organize your videos with advanced playback and privacy features.

**Highlights:** Smart Bitrate Optimization, Hardware Acceleration, Advanced Encoding Algorithms, Intuitive Video Management, Advanced Playback Features, Task Queue for Batch Compression, Privacy Protection with Face ID/Touch ID

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $9.99 | per year |
| Lifetime Access | $19.99 | one-time |


## Frequently asked questions

### Is HK FLY GPS free?

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

### Is Spectro free?

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

### Which has better reviews, HK FLY GPS or Spectro?

Spectro is rated higher. HK FLY GPS averages 3.0 out of 5 from 2 ratings, while Spectro averages 5.0 from 4 ratings.

### Do HK FLY GPS or Spectro have ads?

Neither HK FLY GPS nor Spectro shows ads.

### Which is updated more often, HK FLY GPS or Spectro?

HK FLY GPS ships an update every 3 weeks, and Spectro monthly. Most recently, HK FLY GPS was updated on November 3, 2026 and Spectro on October 30, 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.*