Comparison

OpenSpam vs Bubble Level Watch Special

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

Head to head
About

OpenSpam

This app identifies and blocks unwanted calls using a community-powered database and a risk score algorithm. It offers customizable blocking levels and ensures user privacy by not collecting personal data or accessing contacts for commercial purposes.

Highlights
  • Instant call identification
  • Customizable blocking levels
  • Community reporting
  • Built-in search for suspicious numbers
  • Allowlist for trusted numbers
  • Ad-free experience
Read full description

Reclaim your peace of mind with the official OpenSpam.es app. OpenSpam is the ultimate solution to identify and block unwanted calls. Born from the collective frustration with telephone harassment, we have created a 100% free, transparent, and ethical tool. No ads, no hidden purchases, and most importantly, no selling your data. TOTAL TRANSPARENCY AND PRIVACY Unlike other apps, OpenSpam doesn’t need to know who you are or access your contacts for commercial purposes. Guaranteed Privacy: We do not collect personal data. Your reports are anonymous. Ad-free: A clean interface, designed solely to protect you. Proprietary Database: We do not rely on third parties. We use the public and documented OpenSpam.es API, powered by an active community. INTELLIGENT AND SECURE PROTECTION Our reputation algorithm analyzes reports and search trends to assign a "Risk Score" to every unknown number. Blocking Levels: You are in control. Choose between Mild, Balanced, or Aggressive protection according to your needs. Safety for your Contacts: OpenSpam is safe. We will never block a number saved in your contacts or one you have recently interacted with; we will simply alert you if it has negative reports. Silent Updates: The database updates automatically in the background. We will only send notifications if it is truly important. No disturbances. KEY FEATURES: Instant Identification: Know who is calling before you pick up. Detect Spam, Fraud, or aggressive Telemarketing. Built-in Search: Got a suspicious missed call? Check it in the app before calling back. Community Reporting: Help others by reporting toxic numbers. When one person reports, we all benefit. Allowlist: Easily manage your exceptions and trusted numbers. JOIN THE RESISTANCE AGAINST SPAM OpenSpam is a project created by users, for users. We believe peace of mind shouldn't come with a price tag or cost you your privacy. Download OpenSpam today and say goodbye to interruptions. Free. Secure. For everyone.

About

Bubble Level Watch Special

Features
Read full description

Your Apple Watch as a spirit level. Rest your wrist on a shelf, a frame, or a table leg. The bubble floats to the high side, and the readout shows the tilt in degrees. Two firm taps when it sits level, so you can watch the work instead of the screen. Tap to hold a reading, then bring your wrist back and read what it captured. Runs on the watch alone. No iPhone app, no ads, no tracking, no data collected. For quick everyday checks rather than calibrated precision work.

Screenshots

OpenSpam4 screens

Verdict

The call

The clearest difference is device support: Bubble Level Watch Special at 3 against OpenSpam's 1. Bubble Level Watch Special also leads on iOS requirement (13.0 vs 17.6). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
OpenSpam versus Bubble Level Watch Special: the parameters behind the verdict, then further details
ParameterOpenSpamBubble Level Watch Special
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhoneiPhone, iPod, Apple Watch — better
Requires iOS17.613.0 — better
Further details — not scored
Size19 MB1 MB
Age rating4+4+
DeveloperJoaquin GarciaKIVANC YAZAN

In-app purchases

None

OpenSpam

No in-app purchases

None

Bubble Level Watch Special

No in-app purchases

Questions

Is OpenSpam free?
OpenSpam is free to download, with no in-app purchases.
Is Bubble Level Watch Special free?
Bubble Level Watch Special is free to download, with no in-app purchases.
Do OpenSpam or Bubble Level Watch Special have ads?
Neither OpenSpam nor Bubble Level Watch Special shows ads.

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