Bubble Level ( Water level ) vs ProttoBau
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Level ( Water level )
This utility app functions as a digital spirit level. It helps users determine horizontal and vertical alignment for various tasks, such as hanging frames or installing TVs. The app provides precise measurements for circular, X-axis, and Y-axis tilts.
- Digital spirit level
- Horizontal and vertical alignment
- Circular tilt measurement
- X-axis tilt information
- Y-axis tilt information
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The application level. Do you want to set the horizontal frame you? Want to know what TV or vertical building? Here, here! Use, spirit level, the application level. You can use a circular precisely, X axis, Y-axis you. You are the X-axis, Y-axis tilt information is unknown.
ProttoBau
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ProttoBau – Your Construction Assistant ProttoBau is an AI-powered construction assistant designed to simplify on-site documentation and reporting. Built for construction professionals, site managers, and project teams, ProttoBau helps you create structured daily reports, manage defects, document handovers, and track site activity — directly from your mobile device. Turn Voice into Structured Reports Simply speak your site notes and ProttoBau converts them into organized, professional construction reports. Reduce paperwork and focus on managing your project efficiently. Key Features • AI-assisted daily site reports • Voice-to-text construction documentation • Defect tracking and issue reporting • Handover documentation • Site sign-in and sign-out logs • Structured project documentation • Clean and professional report export Built for Real Work on Site ProttoBau is designed for real construction environments. Fast input, structured output, and intuitive workflows help reduce administrative effort while maintaining professional documentation standards. Whether managing a small team or a large construction site, ProttoBau supports efficient reporting and communication. Professional Reporting, Simplified All reports are generated based on user-provided information. AI assists in organizing and formatting documentation to improve clarity and efficiency. ProttoBau supports your workflow — it does not replace professional responsibility or oversight. Secure & Transparent Your data is handled responsibly and securely. Users can request account and data deletion at any time. For more details, please review our Privacy Policy. Who It’s For • Site managers • Construction supervisors • Project managers • Contractors • Construction companies Modern construction requires modern tools. ProttoBau helps you document smarter.
Screenshots
Verdict
The clearest difference is ads: ProttoBau at none against Bubble Level ( Water level )'s shown. ProttoBau also leads on update cadence (fortnightly vs every 2 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
Bubble Level ( Water level ) ships an update every 2 months, ProttoBau fortnightly. Both last shipped on October 18, 2026.
| Parameter | Bubble Level ( Water level ) | ProttoBau |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (235 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 235 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 6 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | VCA Virtual Catalogue Applications UG (haftungsbeschrankt) |
In-app purchases
Bubble Level ( Water level )
No in-app purchases
ProttoBau
No in-app purchases
Questions
Is Bubble Level ( Water level ) free?
Is ProttoBau free?
Do Bubble Level ( Water level ) or ProttoBau have ads?
Which is updated more often, Bubble Level ( Water level ) or ProttoBau?
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