Call Blocker vs 2FA iAtomos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Call Blocker
Block unwanted calls, identify suspicious numbers, and report spam. Access a large community database to avoid phone scams and extra charges. Protect yourself from telemarketers and unknown callers.
- Block any phone number
- Identify commercial calls
- Report suspicious numbers
- Avoid common scams
- Access community database
- Automatic dangerous number blocking
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Block, identify and report suspicious phone numbers. Unknownphone.com brings you the most complete app to avoid phone scams, unwanted calls and extra charges in your bill. With more than 10,000,000 telephone numbers registered and identified in our website and a community with millions of users in the United States and around the world. BLOCK PHONE NUMBERS - Do you want to know who is calling you? Are you annoyed by unwanted calls? With our app you will be able to block any phone number you want. (Activate in your iPhone the call block functionality in Settings -> Phone -> Call Blocking & Identification -> Call Blocker) REPORT SUSPICIOUS PHONE NUMBERS Search any phone number and check if it has been previously reported. Share your experience and warn our community. IDENTIFY COMMERCIAL CALLS Are you receiving calls and have no idea who is calling you? Do they refuse to identify themselves? Check the phone number with our application and find out who calls you. Verify the phone owner and block their calls. AVOID THE MOST COMMON SCAMS - Get the latest and most updated information on telephone scams in the United States. Block suspicious phone numbers before they call you. OUR COMMUNITY Unknownphone.com is the largest community on phone search and the biggest phone spam directory in the United States. With more than 10,000,000 identified phone numbers in more than 30 countries. Call Blocker is Unknownphone.com’s official phone block app and you will be able to access all of our services from your iPhone. Optional subscription to our service - Unlimited credits. Get information for all numbers you want. - Automatic detection and block of up to 200,000 dangerous phone numbers in your country. - Access without limitations all our records for any phone number. - No ads. - Auto-renewing subscription ($7.99 monthly / $14.99 3 months - price varies by country) Call Blocker respects your right to privacy. Your contacts will never be public. Privacy policy: unknownphone.com/privacy-policy Terms of use: unknownphone.com/terms-of-service Payment for auto-renewing subscription to Call Blocker will be charged to your iTunes account upon confirmation of purchase. Subscription can be managed and auto-renewal can be turned off by going to the Account Settings on your device. To avoid renewal, you must cancel at least 24 hours before your subscription ends. Your account will be charged for renewal within 24-hours prior to the end of the current period.
2FA iAtomos
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FREE FOREVER 2FA iAtomos is free forever. There is no subscription, no advertising and nothing to buy inside the app. Codes follow the open TOTP standard, and the optional cloud copy is encrypted on the phone before upload. You can import accounts from Google Authenticator, Authy, 2FAS and Aegis. About five seconds before a code changes, the app can warn you. 2FA iAtomos generates your two-factor codes on the phone itself. No account, no connection, no tracking. Your 2FA secrets live in a vault encrypted on the device with AES-256-GCM. The key is held by the iOS Keychain. Nothing leaves the phone unless you decide it should. CLOUD BACKUP, NO PASSWORD TO REMEMBER Sign in and your accounts are saved automatically. Every change is encrypted on your device with AES-256-GCM before upload, with a key that lives only in your iCloud Keychain. On your next iPhone or iPad with the same Apple ID, your accounts appear on their own. A green cloud on the home screen tells you everything is saved. The server only ever receives encrypted data. Restoring merges accounts and never deletes what you already have, and an altered copy or a version conflict leaves your local vault untouched. You can switch the backup off at any time and it is deleted from the server. AN INDEPENDENT ENCRYPTED FILE Export a password-protected file whenever you like. It does not depend on the cloud backup or on any account, so you always have a second way back. WHAT IT DOES • Standard 2FA codes (TOTP, RFC 6238) with SHA-1, SHA-256 and SHA-512, 6 or 8 digits • Scan a QR code, import a Google Authenticator export, or type the secret • Face ID or Touch ID lock, with the device passcode as fallback • Favorites, search and a custom order • The service's own period is respected, never stretched to buy time • English, Spanish, Catalan, German, French, Italian, Portuguese, Japanese, Korean, Chinese (Simplified) and Russian BUILT FOR EVERYONE The app follows your iOS accessibility settings rather than fighting them. Larger Text grows the code instead of shrinking it, Increase Contrast switches to a high-contrast palette, Reduce Motion stops the countdown animating, and Bold Text and Smart Invert are honored. With VoiceOver, every code can be read out digit by digit and copied, starred or deleted through rotor actions. Time remaining is available on demand, so nothing interrupts you mid-code. Urgency is never signaled by color alone. WHAT IT DOES NOT DO • No ads • No data selling • No behavioral tracking • No secrets, account names or generated codes in any log or report The optional account lets you sign in with Apple, Google or your email. Those services process account identifiers and diagnostic data, and the privacy policy says exactly which and when. The security model is written down, not implied. Read the privacy policy and its security limits at 2fa.iatomos.com.
Screenshots
Verdict
The clearest difference is in-app purchases: 2FA iAtomos at none against Call Blocker's 10. 2FA iAtomos also leads on ads (none vs shown) and update cadence (every 8 days vs monthly). On price 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. Call Blocker sells 10 in-app purchases, starting at $4.99 per month. 2FA iAtomos asks for nothing beyond the download.
Call Blocker ships an update monthly, 2FA iAtomos every 8 days. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.
| Parameter | Call Blocker | 2FA iAtomos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.2K ratings) — better | — |
| Positive reviews | 78.2% of reviews | — |
| Number of ratings | 1.2K — better | — |
| Update frequency | Monthly | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 57 MB | 63 MB |
| Age rating | 9+ | 4+ |
| Developer | UnknownPhone.com | SAMUEL MORENO CONEJERO |
Bugs and requests
Call Blocker
Reported bugs
2 issues- Database update errors
- Inability to block certain numbers
Requested features
3 requests- Automatic database updates
- Block calls from unknown/private numbers
- Integration with phone's native call blocking
2FA iAtomos
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Call Blocker
- Call Blocker 1-Month Shield$4.991 Month
- One month subscription$6.991 Month
- Call Blocker: 3M Shield$9.993 Months
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- Free 1 week trial + 3 months7 Days trial$9.993 Months
- 50% Discount - Three months3 Months trial$9.993 Months
- Three months subscription$14.993 Months
- Free 1 week trial + 3 months7 Days trial$14.993 Months
- Call Blocker: 1 Year$22.991 Year
- Call Blocker: 1 Year - 1 Free Week7 Days trial$22.991 Year
- Call Blocker: 1 Year (50% Discount)1 Year trial$22.991 Year
2FA iAtomos
No in-app purchases









