OpenSpam vs ScamZero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Instant call identification
- Customizable blocking levels
- Community reporting
- Built-in search for suspicious numbers
- Allowlist for trusted numbers
- Ad-free experience
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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.
ScamZero
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ScamZero is your AI-powered scam checker and fraud detector. Instantly verify if a message, link, email, or phone number is a scam — before you click, call, or reply. Built to protect Spanish-speaking communities across Latin America and the US. Fraudsters send fake bank alerts, phishing links, smishing texts, and government impersonation messages every day. ScamZero's AI analyzes what you paste and gives you a clear verdict in seconds: safe, suspicious, or confirmed scam. WHAT SCAMZERO VERIFIES - Text messages & SMS: paste any suspicious message and get an instant AI fraud analysis - Links & URLs: check if a website is phishing, fake, or malicious before you open it - Emails: detect spoofed senders, phishing attempts, and fraudulent messages - Phone numbers: find out if a number has been flagged as scam, spam, or telemarketing HOW IT WORKS 1. Copy and paste the suspicious content — a message, a link, an email, or a phone number 2. ScamZero's AI runs a deep analysis in seconds 3. Get a clear verdict with an explanation: safe, suspicious, or scam No technical knowledge needed. Just paste and check. WHO IT'S FOR Scammers increasingly target Spanish-speaking communities with fake package delivery texts, bank impersonation calls, prize notifications, and investment fraud. ScamZero is designed for these communities — available in English and Spanish. - Protect parents and grandparents who may be less skeptical of scams - Verify before sending money, clicking a link, or sharing personal data - Check if a job offer, rental listing, or online deal is legitimate CALLER ID — BONUS FEATURE ScamZero also identifies incoming calls so you know who's calling before you pick up. Spam and scam callers are flagged automatically, keeping you one step ahead. STAY SAFE FROM EVOLVING FRAUD Fraudsters constantly change tactics. ScamZero's AI stays current so you don't have to. Whether it's a fake delivery notification, a phishing email disguised as your bank, a suspicious investment opportunity, or an unknown caller — ScamZero helps you verify the truth before it's too late. Paste it. Check it. Stay safe.
Screenshots
Verdict
The clearest difference is price: ScamZero at Free against OpenSpam's $0.99. ScamZero also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.1 vs 17.6). OpenSpam's advantage is in-app purchases (none vs 4) and ads (none vs shown). On 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
ScamZero is free to download; OpenSpam costs $0.99 up front. ScamZero sells 4 in-app purchases, starting at $1.99 per month. OpenSpam asks for nothing beyond the download.
OpenSpam ships an update every 3 weeks, ScamZero every 5 days. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.
| Parameter | OpenSpam | ScamZero |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 19 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Joaquin Garcia | Miguel Palma |
In-app purchases
OpenSpam
No in-app purchases
ScamZero
- ScamZero Pro Monthly7 Days trial$1.991 Month
- ScamZero Family Monthly7 Days trial$3.491 Month
- ScamZero Pro Yearly7 Days trial$12.991 Year
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- ScamZero Family Yearly7 Days trial$22.991 Year








