# SignalScope X vs TargetCharge

The clearest difference is in-app purchases: TargetCharge at none against SignalScope X's 10. SignalScope X's advantage is iOS requirement (18.6 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. SignalScope X sells 10 in-app purchases, starting at $3.49 per month. TargetCharge asks for nothing beyond the download.

## The numbers

| Metric | SignalScope X | TargetCharge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (23 ratings)](https://appshunter.io/ios/app/signalscope-x/id1304775893/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 10.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Freemium | — |
| Size | 19 MB | 1 MB |
| Requires iOS | **18.6** | 26.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Faber Acoustical, LLC](https://appshunter.io/developer/284781780) | [Michael Maciag](https://appshunter.io/developer/949291057) |

## What reviewers say

### SignalScope X

[App page](https://appshunter.io/ios/app/signalscope-x/id1304775893)

This app provides advanced signal analysis tools for acoustics, audio, and electronics. It offers a free oscilloscope and tiered subscriptions for additional measurement and visualization capabilities across iPhone, iPad, and Mac.

**Highlights:** Oscilloscope tool, FFT spectrum analysis, Real-time spectrograms, Data recording and export, Support for external hardware, Frequency response correction

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Tool Set, 1 Month | $3.49 | per month |
| Advanced Tool Set, 1 Month | $9.99 | per month |
| Pro Tool Set, 1 Month | $24.99 | per month |
| Basic Tool Set, 1 Year | $34.99 | per year |
| Advanced Tool Set, 1 Year | $99.99 | per year |
| Pro Tool Set, 1 Year | $249.99 | per year |
| 14-day Free Trial, Pro Tool Set | Free | one-time |
| Basic Tool Set 2026 | $69.99 | one-time |
| Advanced Tool Set 2026 | $199.99 | one-time |
| Pro Tool Set 2026 from Advanced | $309.99 | one-time |

**What reviewers like**

- 👍 Powerful software
- 👍 Good for professional testing
- 👍 Captures faint hums
- 👍 Works well for waveforms
- 👍 Useful for guitar debugging

**What reviewers complain about**

- 💸 Expensive subscription model
- 💸 High one-time purchase cost
- 💸 Perceived as a rip-off
- 💸 Previous purchases invalidated
- 💸 Lack of upgrade path

**Reported bugs**

- Recording starts and stops
- App crashes on launch
- Oscilloscope and FFT not functioning
- SPL meter inaccurate/uncalibratable
- App not working on older devices

**Requested features**

- Manual for better understanding
- Ability to store and retrieve setups
- One-off payment option
- More intuitive user interface
- Ability to change Y-axis scale


### TargetCharge

[App page](https://appshunter.io/ios/app/targetcharge/id6760576997)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SignalScope X free?

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

### Is TargetCharge free?

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

### Do SignalScope X or TargetCharge have ads?

Neither SignalScope X nor TargetCharge shows ads.

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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.*