# Renogy vs Acoustic Tachometer

The clearest difference is in-app purchases: Renogy at none against Acoustic Tachometer's 1. Renogy also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Acoustic Tachometer sells 1 one-off in-app purchase. Renogy asks for nothing beyond the download.

Renogy ships an update every 2 weeks, Acoustic Tachometer fortnightly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Renogy | Acoustic Tachometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (824 ratings)](https://appshunter.io/ios/app/renogy/id1495327014/reviews)** | — |
| Number of ratings | **824** | — |
| Positive reviews | 10.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 74 MB | 9 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Renogy Suzhou Co.,Ltd.](https://appshunter.io/developer/1490992894) | [Jan Sokol](https://appshunter.io/developer/1896490456) |

## What reviewers say

### Renogy

[App page](https://appshunter.io/ios/app/renogy/id1495327014)

Monitor your off-grid solar energy systems in real-time, configure devices remotely, and connect with a community of solar enthusiasts. Share your DIY projects, learn from others, and access exclusive promotions and rewards.

**Highlights:** Real-time energy monitoring, Device settings configuration, Online DIY learning and sharing, Exclusive rewards and promotions, Access to online store

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to set up and configure
- 🚀 Plug and go functionality
- 🔋 Decent battery monitoring

**What reviewers complain about**

- 🐛 Frequent connectivity issues
- 🔍 Inaccurate or missing data
- 📱 Requires internet connection to function
- 🤖 Overly complex UI with unnecessary features

**Reported bugs**

- App crashes on launch after updates
- Login/account creation issues
- Bluetooth pairing problems

**Requested features**

- Detailed battery health and usage history
- Customizable alerts and notifications
- Apple Watch support
- Offline mode for remote monitoring


### Acoustic Tachometer

[App page](https://appshunter.io/ios/app/acoustic-tachometer/id6789524641)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acoustic Tachometer Pro | $5.99 | one-time |


## Frequently asked questions

### Is Renogy free?

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

### Is Acoustic Tachometer free?

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

### Do Renogy or Acoustic Tachometer have ads?

Neither Renogy nor Acoustic Tachometer shows ads.

### Which is updated more often, Renogy or Acoustic Tachometer?

Renogy ships an update every 2 weeks, and Acoustic Tachometer fortnightly. Most recently, Renogy was updated on October 26, 2026 and Acoustic Tachometer on October 25, 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.*