Comparison

Block vs OpenSpam

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

Head to head
About

Block

This app acts as a telephone firewall, providing control over incoming calls and protection from spam. It identifies and blocks unwanted numbers, alerts you to potential spam, and allows you to look up numbers for spam reports. Take back control of your privacy and reduce nuisance calls.

Highlights
  • Block spam numbers
  • Alerts for incoming spam calls
  • Phone number lookup for spam reports
  • Block international numbers
  • Wildcard blocking for number ranges
Features
Read full description

Block-Spam stops spam calls, robocalls and unwanted numbers before your phone even rings — without uploading your contacts to anyone. Built on Apple CallKit, Block-Spam works quietly in the background and keeps your data on your device. No account. No sharing your address book. WHAT YOU CAN DO • Block spam & scam calls automatically using a community-powered database • Identify suspicious numbers so you know who's calling • Block ranges of consecutive numbers with a single rule, using wildcards (Premium) • Create your own personal block list • Look up any number to check if it's been reported as spam • Report nuisance numbers to help the community • Filter spam text messages (SMS) into their own folder PRIVACY FIRST Block-Spam uses Apple's on-device call blocking. We don't upload your contacts and we don't sell your data. Number checks are handled securely. HOW TO ACTIVATE (takes 15 seconds) 1. Open Settings › Phone › Call Blocking & Identification 2. Turn Block-Spam ON That's it — you're protected. PREMIUM — ULTIMATE PROTECTION (OPTIONAL) • 24/7 protection: the spam database refreshes automatically in the background • No ads • Unlimited number lookups • Wildcards: block a whole range of numbers with a single rule Plans: 3 months or 1 year, with a 7-day free trial. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period. You can manage or cancel your subscription in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Prices are shown in the app in your local currency before you confirm. Terms of Use: https://block-spam.com/terms?lng=en Standard EULA (Apple): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://block-spam.com/privacy?lng=en Block-Spam is free to use, supported by ads, with an optional Premium subscription. Questions? support_ios@block-spam.com

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.

Screenshots

Block4 screens
OpenSpam4 screens

Verdict

The call

The clearest difference is price: Block at Free against OpenSpam's $0.99. Block also leads on rating (4.1 vs 3.7) and update cadence (every 2 weeks vs every 3 weeks). OpenSpam's advantage is in-app purchases (none vs 2) 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

CostPrice · In-app purchases · Ads · Monetization

Block is free to download; OpenSpam costs $0.99 up front. Block sells 2 in-app purchases, starting at $12.99 per 3 months. OpenSpam asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Block holds the better App Store score, 4.1 against 3.7. That said, the two scores are not equally well evidenced: Block has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 30% of Block's written reviews are positive against 50% of OpenSpam's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Block ships an update every 2 weeks, OpenSpam every 3 weeks. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

Scorecard9 real differences · 1 level
Block versus OpenSpam: the parameters behind the verdict, then further details
ParameterBlockOpenSpam
PriceFree — better$0.99
Rating4.1 (18 ratings) — better3.7 (3 ratings)
Positive reviews30.0% of reviews50.0% of reviews — better
Number of ratings18 — better3
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size22 MB19 MB
Age rating4+4+
DeveloperALBERT PAMIES PARESJoaquin Garcia

Customer experience

Block

All ratings18 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews30 reviews
Positive30.0%
Neutral3.3%
Negative66.7%

OpenSpam

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

2 purchases

Block

Subscriptions2
  • Premium 3 Months7 Days trial$12.993 Months
  • Premium Annual7 Days trial$34.991 Year
None

OpenSpam

No in-app purchases

Questions

Is Block free?
Block is free to download, with in-app purchases available.
Is OpenSpam free?
OpenSpam costs $0.99, with no in-app purchases.
Which has better reviews, Block or OpenSpam?
Block is rated higher. Block averages 4.1 out of 5 from 18 ratings, while OpenSpam averages 3.7 from 3 ratings.
Do Block or OpenSpam have ads?
Block shows ads; OpenSpam does not.
Which is updated more often, Block or OpenSpam?
Block ships an update every 2 weeks, and OpenSpam every 3 weeks. Most recently, Block was updated on September 17, 2026 and OpenSpam on September 24, 2026.

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