# DV vs BluVac

The clearest difference is rating: BluVac at 5.0 against DV's 3.3. DV's advantage is review sentiment (67% vs 36%) and ratings volume (7 vs 2). 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.

BluVac holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews complicate that: 67% of DV's written reviews are positive against 36% of BluVac's, so the app with the better star average is not the one people write more warmly about.

DV ships an update every 3 months, BluVac every 2 months. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | DV | BluVac |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/dv-40s/id977734858/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bluvac/id1227222428/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | **66.7% of reviews** | 36.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 55 MB | 25 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JB Industries, Inc.](https://appshunter.io/developer/977734857) | [Manifold Cloud Services Ltd.](https://appshunter.io/developer/1227222427) |

## What reviewers say

### DV

[App page](https://appshunter.io/ios/app/dv-40s/id977734858)

This application displays real-time vacuum measurements from a wireless micron gauge. It offers advanced features like alarming, customizable themes, unit options, job timers, and data logging with email export capabilities.

**Highlights:** Wireless micron gauge integration, Real-time vacuum measurement display, Alarming capabilities, Customizable colored themes, Unit of measure options, Job timers, Data logging with save and email functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### BluVac

[App page](https://appshunter.io/ios/app/bluvac/id1227222428)

Connect to compatible vacuum gauges via Bluetooth to perform detailed system evacuations. Features timed tests, decay tests, and data recording. Offers advanced reporting, multiple gauge connections, and geolocation for enhanced screenshots.

**Highlights:** Bluetooth gauge connection, Timed evacuation tests, Decay test functionality, Detailed results viewing, mQ Assist integration, Pro Report feature, Connect up to 6 gauges

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DV free?

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

### Is BluVac free?

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

### Which has better reviews, DV or BluVac?

BluVac is rated higher. DV averages 3.3 out of 5 from 7 ratings, while BluVac averages 5.0 from 2 ratings.

### Do DV or BluVac have ads?

Neither DV nor BluVac shows ads.

### Which is updated more often, DV or BluVac?

DV ships an update every 3 months, and BluVac every 2 months. Most recently, DV was updated on June 11, 2026 and BluVac on September 9, 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.*