Comparison

BluTest vs Hello Ravenna

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BluTest

Connect to precision test instruments to measure temperature, humidity, and pressure. Log data directly from smart devices for easy access and sharing. The app simplifies commissioning, troubleshooting, and building automation system comparisons.

Highlights
  • Connect to Blü-Test sensor probes
  • Measure temperature, humidity, and pressure
  • Log data directly to smart devices
  • Save logs on probe and app
  • Email logs for reporting
  • Graph and compare data points
Features
Read full description

Connect to Blü-Test precision test instruments to measure temperature, relative humidity or differential pressure. Immediately log data through smart device communication for convenience and accessibility. The logs are saved on the probe and the app, and can be emailed to your account for use in commissioning, troubleshooting or comparing against your building automation system. Blü-Test is very simple to use. Start the app on your smart phone or tablet and select the probe to view live data from that device. Multiple data points can be logged, graphed or emailed. Select which probe logs to download to your device, link logs to sites and locations, and use a thorough set of calculators to make using Blu-Test easier than ever before.

About

Hello Ravenna

Features
Read full description

See a pothole that needs filling? Graffiti making a mess of your neighborhood? Tap right into your city and report the issue fast with Hello Ravenna!

Screenshots

BluTest4 screens
Hello Ravenna3 screens

Verdict

The call

The clearest difference is iOS requirement: BluTest at 12.0 against Hello Ravenna's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BluTest ships an update every 5 weeks, Hello Ravenna monthly. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

Scorecard1 real difference · 8 level
BluTest versus Hello Ravenna: the parameters behind the verdict, then further details
ParameterBluTestHello Ravenna
PriceFreeFree
Rating4.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size19 MB47 MB
Age rating4+4+
DeveloperBuilding Automation Products, IncGOGov, Inc.

In-app purchases

None

BluTest

No in-app purchases

None

Hello Ravenna

No in-app purchases

Questions

Is BluTest free?
BluTest is free to download, with no in-app purchases.
Is Hello Ravenna free?
Hello Ravenna is free to download, with no in-app purchases.
Do BluTest or Hello Ravenna have ads?
Neither BluTest nor Hello Ravenna shows ads.
Which is updated more often, BluTest or Hello Ravenna?
BluTest ships an update every 5 weeks, and Hello Ravenna monthly. Most recently, BluTest was updated on October 15, 2026 and Hello Ravenna on October 4, 2026.

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