ggT vs OpenSpam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ggT
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Die iOS ggT App wurde in Resonanz auf die Bitten von Besuchern der beliebten Website https://bruchrechner.net entwickelt. Unsere Besucher wünschten sich einen eigenständigen ggT (größte gemeinsame Teiler) rechner, der ohne Internet funktioniert. Teiler, der größte gemeinsame Teiler (ggT) und Brüche kürzen gehören eng zusammen. Verwenden Sie diese App, um den Teiler einer Zahl zu ermitteln, den größten gemeinsamen Teiler von zwei oder mehr Zahlen zu bestimmen und Brüche zu kürzen. Ziel war es, die App intuitiv, übersichtlich, schnell und einfach in der Handhabung zu gestalten. Sie können die App zu jeder Zeit und an jedem Ort nutzen, da sie keine Internet-Verbindung benötigt. Wir hoffen, dass die ggT App eine Ihrer bevorzugten Utility-Apps wird.
OpenSpam
Identify and block unwanted calls with this free, ad-free tool. It uses a community-powered database and a reputation algorithm to assign a risk score to unknown numbers, offering customizable blocking levels for enhanced peace of mind.
- Instant call identification
- Community reporting
- Customizable blocking levels
- Built-in search for suspicious numbers
- Allowlist for trusted numbers
- Ad-free and privacy-focused
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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 price: OpenSpam at Free against ggT's $0.99. ggT's advantage is iOS requirement (14.1 vs 17.6). On 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
OpenSpam is free to download; ggT costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ggT | OpenSpam |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.0 (11 ratings) — better |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | — | Every 3 weeks |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | — | iPhone — better |
| Requires iOS | 14.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | H Valeur | Joaquin Garcia |
In-app purchases
ggT
No in-app purchases
OpenSpam
No in-app purchases









