# Video tachometer vs Flowserve FlowSync

The clearest difference is in-app purchases: Flowserve FlowSync at none against Video tachometer's 1. Flowserve FlowSync also leads on rating (5.0 vs 4.6) and iOS requirement (9.0 vs 15.6). Video tachometer's advantage is ratings volume (84 vs 2) and update cadence (every 3 months vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Video tachometer sells 1 one-off in-app purchase. Flowserve FlowSync asks for nothing beyond the download.

Flowserve FlowSync holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Video tachometer has 84 ratings behind it against 2, so its average is the more settled of the two.

Video tachometer ships an update every 3 months, Flowserve FlowSync every 8 months. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Video tachometer | Flowserve FlowSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (84 ratings)](https://appshunter.io/ios/app/video-tachometer/id1492583587/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flowserve-flowsync/id1622634697/reviews)** |
| Number of ratings | **84** | 2 |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 170 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [Flowserve Corp](https://appshunter.io/developer/1243575241) |

## What reviewers say

### Video tachometer

[App page](https://appshunter.io/ios/app/video-tachometer/id1492583587)

This app uses slow-motion video to create a strobe light effect, allowing you to measure rotational speeds. It records video with detailed information like frame rate and exposure, and offers customizable text overlays.

**Highlights:** Strobe light effect simulation, Rotational speed measurement (RPM/Hz), Slow-motion video recording, Customizable text overlays on video, Adjustable frame rate and exposure, Records 4K video (if supported)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


### Flowserve FlowSync

[App page](https://appshunter.io/ios/app/flowserve-flowsync/id1622634697)

Control and monitor MXb Smart Actuators remotely via Bluetooth from an iOS tablet. View detailed diagnostics, capture screenshots for reports, and create/save actuator configurations for easy deployment.

**Highlights:** Remote actuator control via Bluetooth, View advanced diagnostics, Capture screenshots for reports, Create and save actuator configurations, Push configurations to multiple actuators

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Video tachometer free?

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

### Is Flowserve FlowSync free?

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

### Which has better reviews, Video tachometer or Flowserve FlowSync?

Flowserve FlowSync is rated higher. Video tachometer averages 4.6 out of 5 from 84 ratings, while Flowserve FlowSync averages 5.0 from 2 ratings.

### Do Video tachometer or Flowserve FlowSync have ads?

Neither Video tachometer nor Flowserve FlowSync shows ads.

### Which is updated more often, Video tachometer or Flowserve FlowSync?

Video tachometer ships an update every 3 months, and Flowserve FlowSync every 8 months. Most recently, Video tachometer was updated on September 10, 2026 and Flowserve FlowSync on September 11, 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.*