Comparison

3pLevel Pro vs Brussels Air

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

Head to head
About

3pLevel Pro

This app provides a clean and intuitive inclinometer for measuring rolling and pitching angles. It offers customizable views, visual and audio alarms, and screen orientation lock for off-road or urban use.

Highlights
  • Measure rolling and pitching inclination
  • Track maximum inclination reached
  • Customizable inclinometer views
  • Visual and audio inclination alarms
  • Screen orientation lock
  • Inclinometer calibration
Read full description

See your vehicle tilt, in 3D. 3pLevel shows your vehicle's roll and pitch while you drive: a 3D vehicle that leans with the real angles, so you can tell at a glance how far you are from the limit on a side slope or a steep climb. 3D, your way • Two views, one from behind for roll and one from the side for pitch, or one large vehicle • Choose the paint color of the 3D vehicle • Prefer pictures? Pick an illustration, a silhouette that turns red past your limit, or a photo of your own vehicle with the background removed for you Alerts you can't miss • A red flash and a sound when roll or pitch passes your limit • A gap alert when the angle changes suddenly • See the steepest roll and pitch you reached on the trail • Dials with your inclination limit in red and your max inclination in blue Your max inclination, ready to share • Tap Start when you set off and Finish at the end: the drive's max roll and pitch, with its time • Share your max inclination as an image on social media or with friends: on a drawn slope, a trail photo, or a photo of your own • Reopen your last drive's max and share it later Made for the car • Set the level once with the phone in its holder; 3pLevel remembers it and asks again if the phone has moved • Degrees or % (grade) • Portrait or landscape, with an orientation lock • Light, dark or automatic, with large readouts, eight background colors and true black in dark mode • In English, German, Spanish, French, Italian and Dutch 3pLevel Pro • Import your own vehicle: a 3D scan made with your iPhone, or a model from the web (USDZ or OBJ) • iPhone and iPad, in any window size next to your maps More for the road from the same team. For off-road, overlanding and rally-raid tripmaster duty, see 3pMaster. For regularity (TSD/CAST) rallying, roadbook navigation and open-road timing, see 3pRally.

About

Brussels Air

Monitor real-time outdoor air pollution levels in the Brussels-Capital Region. Understand your exposure to pollutants and adapt your behavior to protect your health and contribute to better air quality.

Highlights
  • Real-time pollutant concentration tracking
  • Understand personal pollution exposure
  • Behavioral adaptation for health
  • Daily actions for air quality
Features
Read full description

L’app Brussels Air Quality ainsi que le site web "Qualité de l'air" de Bruxelles Environnement vous permettent de suivre en permanence et en temps réel l'évolution des concentrations en polluants dans l'air ambiant en Région de Bruxelles-Capitale. Cette app vous permet : • de mieux connaitre votre exposition à la pollution de l’air extérieur • d’adapter votre comportement pour protéger votre sante • d’agir au quotidien en faveur de la qualité de l’air

Screenshots

3pLevel Pro4 screens
Brussels Air3 screens

Verdict

The call

The clearest difference is review sentiment: 3pLevel Pro at 100% against Brussels Air's 0%. Brussels Air's advantage is price (Free vs $4.99) and rating (5.0 vs 3.5). On ratings volume, ads, in-app purchases and device support 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

Brussels Air is free to download; 3pLevel Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Brussels Air holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 100% of 3pLevel Pro's written reviews are positive against 0% of Brussels Air's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

3pLevel Pro ships an update every 14 months, Brussels Air every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
3pLevel Pro versus Brussels Air: the parameters behind the verdict, then further details
Parameter3pLevel ProBrussels Air
Price$4.99Free — better
Rating3.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 14 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615 — better
Further details — not scored
Size6 MB24 MB
Age rating4+4+
DeveloperStooj srlBruxelles Environnement / Leefmilieu Brussel

Customer experience

3pLevel Pro

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Brussels Air

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

3pLevel Pro

No in-app purchases

None

Brussels Air

No in-app purchases

Questions

Is 3pLevel Pro free?
3pLevel Pro costs $4.99, with no in-app purchases.
Is Brussels Air free?
Brussels Air is free to download, with no in-app purchases.
Which has better reviews, 3pLevel Pro or Brussels Air?
Brussels Air is rated higher. 3pLevel Pro averages 3.5 out of 5 from 2 ratings, while Brussels Air averages 5.0 from 1 ratings.
Do 3pLevel Pro or Brussels Air have ads?
Neither 3pLevel Pro nor Brussels Air shows ads.
Which is updated more often, 3pLevel Pro or Brussels Air?
3pLevel Pro ships an update every 14 months, and Brussels Air every 4 months. Most recently, 3pLevel Pro was updated on November 1, 2026 and Brussels Air on November 2, 2026.

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