Bubble Level Tool vs Smart Controller Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Level Tool
Measure precise angles and levels with your device. Easily switch between portrait, landscape, and surface level modes. Lock and reset angles for accurate measurements.
- Measure current device angle
- Reset angle
- Lock angle
- Portrait mode
- Landscape mode
- Surface level
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Bubble Level Tool - Digital lets you see the current angle of your device, along with reseting and locking the angle too. Tilt the device to measure the precise angle and easily switch between portrait, landscape & surface level. If you have any questions or feedback, I'm all ears. Bubble Level Tool - Digital was created by an individual in his free time, and I’d love to know what you think. I’m available through Twitter @elohohel & Mastodon @elohohel@mastodon.social. Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ A subscription / purchase is required to continue using the app.
Smart Controller Pro
Control your trailer's braking system wirelessly via Bluetooth. Adjust brake parameters, receive alerts for trailer malfunctions, and detect wiring faults for safe and reliable operation.
- Bluetooth connectivity
- Trailer braking control
- Adjustable brake parameters
- Failure alerts
- Wiring fault detection
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This application connects to the Mobile Brake Controller via Bluetooth, as demonstrated in the attached video. It supports trailer braking control, allows you to freely adjust brake parameters, provides failure alerts for trailer malfunctions, and detects wiring faults in the trailer harness. The trailer module features reliable safety design with no potential safety hazards, bringing safe and trouble-free use to users.
Screenshots
Verdict
The clearest difference is review sentiment: Smart Controller Pro at 100% against Bubble Level Tool's 6%. Smart Controller Pro also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 9). Bubble Level Tool's advantage is ratings volume (2.5K vs 1). On price, update cadence, ads 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
Both are free to download. Bubble Level Tool sells 9 in-app purchases, starting at $3.99 per 7 days. Smart Controller Pro asks for nothing beyond the download.
Smart Controller Pro holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Bubble Level Tool has 2.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 6% of Bubble Level Tool's written reviews are positive against 100% of Smart Controller Pro's.
Bubble Level Tool ships an update weekly, Smart Controller Pro every 4 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.
| Parameter | Bubble Level Tool | Smart Controller Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (2.5K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 5.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.5K — better | 1 |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Rihab Mehboob | QI Automotive Co.,Ltd |
Customer experience
Bubble Level Tool
Smart Controller Pro
Bugs and requests
Bubble Level Tool
Reported bugs
2 issues- Inaccurate level readings
- Compatibility issues with older devices
Requested features
3 requests- Percentage slope display option
- Ability to switch between degree and percent
- Refund/cancellation options
Smart Controller Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bubble Level Tool
- Bubble 1 Week$3.997 Days
- Bubble 1 Week$4.997 Days
- Bubble 1 Month3 Days trial$5.991 Month
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- Bubble 1 Month$9.991 Month
- Bubble 1 Year3 Days trial$24.991 Year
- Bubble 6 Months$29.996 Months
- Bubble 1 Year3 Days trial$39.991 Year
- Bubble Lifetime$17.99
- Bubble Lifetime$69.99
Smart Controller Pro
No in-app purchases
Questions
Is Bubble Level Tool free?
Is Smart Controller Pro free?
Which has better reviews, Bubble Level Tool or Smart Controller Pro?
Do Bubble Level Tool or Smart Controller Pro have ads?
Which is updated more often, Bubble Level Tool or Smart Controller Pro?
Other comparisons
