# Flight Debugger vs 信号大师

The clearest difference is iOS requirement: Flight Debugger at 7.0 against 信号大师'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.

Flight Debugger ships an update fortnightly, 信号大师 every 3 weeks. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Flight Debugger | 信号大师 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 7 MB | 27 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [加彬 薛](https://appshunter.io/developer/1114468560) | [学道 林](https://appshunter.io/developer/1796955251) |

## What reviewers say

### Flight Debugger

[App page](https://appshunter.io/ios/app/flight-debugger/id1305073253)

**Features:** macOS Compatibility

**In-app purchases:** none


### 信号大师

[App page](https://appshunter.io/ios/app/id6749791303)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flight Debugger free?

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

### Is 信号大师 free?

信号大师 is free to download, with no in-app purchases.

### Do Flight Debugger or 信号大师 have ads?

Neither Flight Debugger nor 信号大师 shows ads.

### Which is updated more often, Flight Debugger or 信号大师?

Flight Debugger ships an update fortnightly, and 信号大师 every 3 weeks. Most recently, Flight Debugger was updated on October 5, 2026 and 信号大师 on October 14, 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.*