# Dynalog Casper vs HT FLY

Dynalog Casper and HT FLY are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Dynalog Casper ships an update every 3 weeks, HT FLY monthly. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Dynalog Casper | HT FLY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/dynalog-casper/id1626775248/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 168 MB | 168 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Junge Yunchuang Technology Co.,Ltd](https://appshunter.io/developer/1605749892) | [元明 苏](https://appshunter.io/developer/1320752705) |

## What reviewers say

### Dynalog Casper

[App page](https://appshunter.io/ios/app/dynalog-casper/id1626775248)

Control a four-axis aircraft remotely using your iPhone or iPad. View real-time video from the aircraft's camera and capture photos and videos directly to your device.

**Highlights:** Remote aircraft control, Real-time video display, Photo and video recording, WiFi protocol transmission, iPhone/iPad/iPod compatible

**Features:** macOS Compatibility

**In-app purchases:** none


### HT FLY

[App page](https://appshunter.io/ios/app/ht-fly/id6547848122)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dynalog Casper free?

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

### Is HT FLY free?

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

### Do Dynalog Casper or HT FLY have ads?

Neither Dynalog Casper nor HT FLY shows ads.

### Which is updated more often, Dynalog Casper or HT FLY?

Dynalog Casper ships an update every 3 weeks, and HT FLY monthly. Most recently, Dynalog Casper was updated on October 6, 2026 and HT FLY on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*