BiPi Bubble Level with Sound vs Level Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BiPi Bubble Level with Sound
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BiPi Bubble Level with Sound Level surfaces without constantly looking at your screen. BiPi is a Bubble Level, Spirit Level, and Digital Level with audio guidance that helps you find the perfect level using sound. Inspired by the way radar and metal detectors guide you toward a target, BiPi turns leveling into a simple audio-guided experience. As you move away from level, the beeps become slower. As you get closer to the target, the beeps become faster. At 0.1°, you will hear rapid beeps. Reach 0.0° and the sound becomes a continuous tone, letting you know that you have locked onto the perfect level. Audio-Guided Leveling Keep your eyes on your work instead of constantly checking the screen. * Slow beeps when you are far from level * Faster beeps as you approach the target * Rapid beeps when you are very close * Continuous tone when you reach 0.0° * Measure and level using sound Sound Modes Choose the audio experience that works best for your task. * Metal Detector Mode * Radar Lock Mode * Stereo Mode * Silent Mode Radar Lock Mode gives you a target-style audio experience. The closer you get to level, the faster the beeps become. When you reach 0.0°, the continuous tone tells you that the target has been locked. Stereo Mode Stereo Mode adds directional audio guidance to your leveling work. If the surface is tilted to the left, the sound comes from the left. If it is tilted to the right, the sound comes from the right. This lets you understand which direction to adjust without constantly looking at the screen. Three Measuring Modes Choose the measurement that fits your task. * X Axis Level * Y Axis Level * X + Y Combined Level Use individual axes for simple horizontal or vertical leveling, or use the combined mode when you want to monitor both axes at the same time. Calibrate for Your Own Reference BiPi lets you calibrate the level to your current position. Use calibration when you want to measure from a specific reference angle or treat an existing surface as your new zero point. This makes BiPi useful not only for finding standard level, but also for measuring relative angles and custom reference positions. Work Mode Work Mode is designed for hands-on jobs where you need your phone to stay ready while you work. * Keep the screen on * Activate the built-in flashlight Use Work Mode when working in dark areas or when you need continuous access to the level while installing, aligning, or adjusting something. Built for Real-World Jobs Use BiPi for everyday tasks at home, in the workshop, or on the job. * Hanging pictures * Mounting TVs * Installing shelves * Aligning furniture * Setting up cameras * Leveling caravans and RVs * Construction projects * DIY and home improvement * Installation and repair work Simple, Fast, and Focused BiPi is designed to keep leveling simple. No unnecessary tools or complicated interfaces. Just choose your measurement mode, select your preferred sound, and follow the audio feedback toward the target. BiPi works as a Bubble Level, Spirit Level, Digital Level, and Inclinometer for everyday measuring and leveling tasks. Additional Features * High-precision sensor-based measurement * Instant audio feedback * Built-in flashlight * Work Mode with screen lock prevention * Dark Theme * 18 languages supported * Lightweight and fast Measure with your eyes when you want to. Measure with your ears when you need to. BiPi Bubble Level with Sound. ANALYTICS, CRASH REPORTING & ADS BiPi uses Google Firebase Analytics and Crashlytics to understand app usage, improve the experience, and fix crashes. BiPi also uses Google AdMob to display ads. Depending on your settings and applicable privacy choices, AdMob may use device and activity data to provide personalized ads. These services may process data in accordance with Google's Privacy Policy. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Level Tool
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PocketLevel turns your iPhone into a precision spirit level and measurement toolkit. Hang pictures perfectly straight, level shelves and furniture, check slopes and measure angles — with big, sunlight-readable numbers and pro-grade accuracy. BUBBLE LEVEL Bullseye level for flat surfaces and bar level for walls and frames. The display turns green with a haptic tap the moment you hit level. Adjustable tolerance from 0.2° to 2.0°. CALIBRATION Two-step calibration against any reference surface corrects for your phone's camera bump and case — the number one cause of inaccurate phone levels. Your calibration is saved per orientation. ANGLE FINDER Full 360° protractor with live readout to a tenth of a degree. Set any angle as zero for relative measurements, and read slopes as degrees or percent — perfect for roof pitch and ramps. SAVE YOUR READINGS Freeze any reading with a tap and save it with a name, like "Top shelf" or "Table saw blade". BUILT FOR REAL WORK - Big monospace numbers you can read in bright sunlight - Screen stays awake while you measure - No ads, no popups, nothing interrupting your measurement - Works fully offline - All processing on your device — no data collected PocketLevel Plus subscription is required to use the app. Plans: $2.99 per week with a 3-day free trial for new subscribers, or $24.99 per year. Prices may vary by region. Payment is charged to your Apple ID account at confirmation of purchase or after the free trial. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Use: https://kelotech.github.io/pocketlevel_legal/terms-of-service/ Privacy Policy: https://kelotech.github.io/pocketlevel_legal/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: BiPi Bubble Level with Sound at none against Level Tool's 2. Level Tool's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Level Tool sells 2 in-app purchases, starting at $2.99 per 7 days. BiPi Bubble Level with Sound asks for nothing beyond the download.
| Parameter | BiPi Bubble Level with Sound | Level Tool |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | LedaPremium | KeloTech Group Oy |
In-app purchases
BiPi Bubble Level with Sound
No in-app purchases
Level Tool
- PocketLevel Plus Weekly3 Days trial$2.997 Days
- PocketLevel Plus Yearly$24.991 Year





