# AnaHertz vs Charger Master

The clearest difference is rating: Charger Master at 4.3 against AnaHertz's 3.3. Charger Master also leads on review sentiment (27% vs 0%) and ratings volume (6.1K vs 7). AnaHertz's advantage is ads (none vs shown) and iOS requirement (10.2 vs 15.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. AnaHertz sells 1 one-off in-app purchase and Charger Master sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Charger Master holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: Charger Master has 6.1K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 0% of AnaHertz's written reviews are positive against 27% of Charger Master's.

AnaHertz ships an update every 5 weeks, Charger Master every 2 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | AnaHertz | Charger Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/anahertz-frequency-analysis/id1310201833/reviews) | **[4.3 (6.1K ratings)](https://appshunter.io/ios/app/charger-master/id1495536308/reviews)** |
| Number of ratings | 7 | **6.1K** |
| Positive reviews | 0.0% of reviews | **26.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1 MB | 55 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Interactive Mindware LLC](https://appshunter.io/developer/499010994) | [东海 刘](https://appshunter.io/developer/1454617571) |

## What reviewers say

### AnaHertz

[App page](https://appshunter.io/ios/app/anahertz-frequency-analysis/id1310201833)

This app provides access to your device's accelerometer and gyroscope, allowing you to capture and analyze linear acceleration and angular velocity. It offers dynamic frequency spectrum analysis and customizable sampling options. Data and analysis can be exported via email.

**Highlights:** Accelerometer and gyroscope data capture, Linear acceleration and angular velocity analysis, Combined and individual data plots, Dynamic frequency spectrum analysis, Analysis band for focused time ranges, Customizable sampling rate and time, Export sensor data and FFT spectrum

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AnaHertz-YZ Data and Frequency | $1.99 | one-time |


### Charger Master

[App page](https://appshunter.io/ios/app/charger-master/id1495536308)

Personalize your charging experience with custom sounds and animations. This app also offers tools to test charging speed, estimate battery life, and provide maintenance tips.

**Highlights:** Custom charging sounds, Charging animations, Charging power detection, Battery life calculator, Charging time estimation, Battery maintenance tips, Home screen widgets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Edition | $1.99 | one-time |
| Lifetime Professional Edition | $3.99 | one-time |

**What reviewers like**

- ⚡ Charging speed monitoring
- 🎨 Visually appealing animations
- 💻 Useful charging information

**What reviewers complain about**

- 🚫 Paywall-locked features
- 📺 Excessive ads
- 🔒 Requires unlocked phone for animations
- ⚠️ Inaccurate charging data
- 🔋 Drains battery

**Reported bugs**

- Automation failures
- Charging test freezes
- Inconsistent percentage display

**Requested features**

- Lock screen charging animations
- Wireless charging speed monitoring
- Battery health tracking
- Export charging data to CSV/Excel


## Frequently asked questions

### Is AnaHertz free?

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

### Is Charger Master free?

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

### Which has better reviews, AnaHertz or Charger Master?

Charger Master is rated higher. AnaHertz averages 3.3 out of 5 from 7 ratings, while Charger Master averages 4.3 from 6.1K ratings.

### Do AnaHertz or Charger Master have ads?

Charger Master shows ads; AnaHertz does not.

### Which is updated more often, AnaHertz or Charger Master?

AnaHertz ships an update every 5 weeks, and Charger Master every 2 weeks. Most recently, AnaHertz was updated on October 24, 2026 and Charger Master on October 29, 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.*