True CallerID vs OpenSpam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
True CallerID
Identify unknown callers and block unwanted calls automatically. This app uses smart spam detection and AI to protect you from robocalls, telemarketers, and scams. Take control of your phone and see caller information before you answer.
- Instant Caller ID
- Smart Call Blocker
- Spam Detection Alerts
- Call Log Insights
- Number Lookup
- Personalized Block List
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Identify unknown callers, block robocalls, and stop spam calls automatically with True CallerID—America’s trusted caller ID and call blocker app. Stay protected with smart spam detection, real-time caller lookup, and AI-powered scam call blocking. True CallerID gives you the power to control who reaches you whether it's a telemarketer, robocall, or spoofed number. Trusted by thousands worldwide, our app uses a constantly updated community-sourced spam list and smart algorithms to detect fraud, scams, and unwanted calls. Key Features: - Instant Caller ID: See names, photos & locations before answering - Smart Call Blocker: Auto-block spam, telemarketing & robocalls - Spam Detection Alerts: Real-time alerts when a scammer calls - Call Log Insights: See caller behavior and risk level - Number Lookup: Reverse phone number search for any contact - Personalized Block List: Add specific numbers or patterns - Do Not Disturb Mode: Silence unknown numbers smartly - Light, Fast, & Battery Friendly Why Choose Us? - Unlike generic apps, we focus on user safety, caller identity accuracy, and seamless experience without draining your phone battery. True Caller ID supports all major carriers, integrates with your native phonebook, and helps you avoid annoying interruptions. Download now and take back control of your phone. Subscribe to get Pro access to all features. You will be charged after the purchase confirmation. Subscriptions auto-renew 24 hours before the expiration date. You can manage your subscriptions in Account Settings on the App Store. Privacy Policy https://caller.adxsdk.com/privacy-policy Terms & Conditions https://caller.adxsdk.com/terms-condition
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.
Screenshots
Verdict
The clearest difference is in-app purchases: OpenSpam at none against True CallerID's 8. True CallerID's advantage is review sentiment (58% vs 25%) and rating (4.3 vs 3.9). On price, update cadence, ads and 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
Both are free to download. True CallerID sells 8 in-app purchases, starting at $3.99 per 7 days. OpenSpam asks for nothing beyond the download.
True CallerID holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: True CallerID has 307 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 58% of True CallerID's written reviews are positive against 25% of OpenSpam's.
True CallerID ships an update fortnightly, OpenSpam every 3 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | True CallerID | OpenSpam |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (307 ratings) — better | 3.9 (10 ratings) |
| Positive reviews | 57.9% of reviews — better | 25.0% of reviews |
| Number of ratings | 307 — better | 10 |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 141 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Reena Williams | Joaquin Garcia |
Customer experience
True CallerID
OpenSpam
In-app purchases
True CallerID
- Weekly Subscription$3.997 Days
- Weekly Plan with Free Trial3 Days trial$5.997 Days
- Yearly 60% discount Plan$29.991 Year
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- Yearly Subscriptions$39.991 Year
- Duplicate Contact Remover$3.99
- Sync Google Contacts$4.99
- Hide Information$9.99
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- Lifetime validity$59.99
OpenSpam
No in-app purchases









