Bubble Level vs PDFs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Level
This tool helps you ensure surfaces are perfectly horizontal or vertical using various measurement modes. It offers features like angle locking, calibration for accuracy, and an audible indicator for precise leveling.
- Multiple leveling modes (Circle, Vertical, Horizontal, Mix)
- Lock current angle feature
- Calibration for accurate readings
- Audible indicator for perfect leveling
- User-friendly interface
- Angle locking
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Ensure Your Surfaces Are Perfectly Horizontal or Vertical with Bubble Level app. There are four modes that you can choose: Circle Level: Simultaneously measure the horizontal and vertical angles. Vertical Level: Ideal for ensuring walls and other vertical surfaces are perfectly vertical. Horizontal Level: Perfect for checking that tables, floors, and other horizontal surfaces are perfectly horizontal. Mix Mode: All-in-one display featuring circle, vertical, and horizontal levels. Lock the Angle: Need to maintain a specific measurement? Use our "Lock the Angle" feature to freeze the current angle. Calibrate for Accuracy: Does your phone case or camera bump interfere with the leveling? Our calibration feature allows you to zero out the readings, ensuring you start from a perfectly horizontal or vertical point. Audible Indicator: Activate the sound function to receive an audio cue when your surface is perfectly horizontal or vertical. Accuracy has never sounded so good! Why Choose our app? User-friendly interface Highly accurate measurements Versatile features for a wide range of applications Handy add-ons like angle locking and calibration Bubble Level app is free. You can use it forever, at no cost. However, Bubble Level does offer premium features for its subscribers. If you decide to purchase an upgrade, you will unlock additional features. ADDITIONAL FEATURES FOR SUBSCRIBED USERS • No Ads • Access the "lock" feature • Access the vertical level, horizontal level, and mix mode. Terms of Use: https://kociapp.github.io/Bubble-Level/term-of-use Privacy Policy: https://kociapp.github.io/Bubble-Level/privacy-policy
PDFs
This app allows you to easily combine, split, secure, and customize PDF documents. It offers features like watermarking, page reordering, and password protection, all while working offline for enhanced privacy and speed.
- Merge multiple PDF files
- Split large files or extract pages
- Lock and unlock PDFs with passwords
- Add custom text or image watermarks
- Organize, reorder, and rotate pages
- Offline processing for privacy
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Effortlessly Edit, Protect & Organise PDFs Take full control of your PDF documents with PDFs: Merge & Split – your all-in-one PDF editor for combining, splitting, securing, and customising your files. Whether you're handling work reports, study materials, or legal documents, this app makes PDF editing simple, fast, and offline-friendly. Key Features: - Merge PDFs: Combine multiple PDF files into a single document. - Split PDFs: Extract specific pages or split large files into smaller ones. - Lock & Unlock PDFs: Protect PDFs with a password or remove existing security. - Add Watermark: Insert custom watermarks (text or image) to protect your content. - Add Page Numbers: Number your PDF pages for better readability and organisation. - Organise Pages: Reorder, rotate, delete, or duplicate pages with ease. - Rotate PDFs: Rotate individual pages or the entire document. - Secure Your Files: Add encryption for extra privacy. - Convert & Export: Save your PDFs in various formats for seamless sharing. - Offline Support: Process all files locally on your device, no internet needed. Subscription & Pricing Options: Unlock all premium tools with flexible pricing: Weekly Plan – Perfect for temporary tasks Monthly Plan – Ideal for students and professionals Yearly Plan – Best value for long-term users Lifetime Access – One-time payment for unlimited use Why Choose PDFs: Merge & Split? All-in-One PDF Toolkit – Every essential feature in one app Fast & Reliable – Process documents in seconds Secure & Private – 100% offline, no cloud storage or tracking Intuitive UI – Designed for productivity and ease of use Privacy Policy: https://www.freeprivacypolicy.com/live/de501fa3-782a-48dd-b33f-83d8bc220c5c Terms of use: https://www.privacypolicies.com/live/ec0062f6-bde6-4a8d-b665-9df7cf6f5d6e Need help? Contact us at: help.app007@gmail.com Download PDFs: Merge, Split & Lock today and experience the easiest way to manage your documents on the go.
Screenshots
Verdict
The clearest difference is ads: PDFs at none against Bubble Level's shown. PDFs also leads on update cadence (weekly vs every 2 weeks). Bubble Level's advantage is review sentiment (75% vs 50%). On price, rating, ratings volume 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
Both are free to download. Bubble Level sells 3 in-app purchases, starting at $1.99 per 7 days and PDFs sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Bubble Level against 4.8 for PDFs. Both are backed by a comparable volume of ratings — 60 and 75 respectively. Written reviews are what separate them: 75% of Bubble Level's written reviews are positive against 50% of PDFs's.
Bubble Level ships an update every 2 weeks, PDFs weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Bubble Level | PDFs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (60 ratings) — better | 4.8 (75 ratings) |
| Positive reviews | 75.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 60 | 75 — better |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Andy Sutanto | HANSIFY TECHNOLOGIES |
Customer experience
Bubble Level
PDFs
In-app purchases
Bubble Level
- Bubble Level Pro$1.997 Days
- Spirit Level Pro$19.991 Year
- Waterpas Pro - Waterpass$39.99
PDFs
- Monthly Plan$4.991 Month
- Yearly Plan$9.991 Year
- Lifetime$9.99







