Last updated: 2023-09-15
To stop No Caller ID calls on your T-Mobile iPhone, we recommend Robokiller, an effective app designed to block spam calls before they ring through. Alternatively, Hiya can be used but may have different features that appeal to specific users.
Summary
- Robokiller blocks unwanted calls effectively using a large database of known scammers.
- Hiya offers call screening and identification, particularly useful for identifying unknown callers.
- Both apps are available on the App Store, making them easy to download and install.
- Robokiller emphasizes blocking calls and texts, while Hiya has community-based spam detection features.
What is Robokiller?
Robokiller is a robust spam call and text blocker that uses a combination of machine learning and a large database of known spammers to preemptively block unwanted calls. With a unique feature called Answer Bots, Robokiller engages spam callers with pre-recorded messages, wasting their time instead of yours. This means you won’t even have to know the call came through, providing peace of mind for the user. You can check their dashboard for any attempted spam calls too.
Features of Robokiller
- Extensive Database: Robokiller uses a global database of over 1.4 billion analyzed calls, enabling it to block a significant number of spam calls before they reach you (source).
- Answer Bots: Engage spam callers with recorded messages, turning the tables on telemarketers and scammers (source).
- Spam Text Blocking: Along with blocking calls, Robokiller also filters out spam texts, providing comprehensive protection.
- User-Friendly Dashboard: Users can monitor blocked calls and adjust settings easily on the app's interface.
Hiya: A Viable Alternative
Hiya provides features such as caller ID and spam identification using a community-sourced database. This allows users to identify calls from unknown numbers and block them as needed. While Hiya offers some unique features, it may not provide the same level of call engagement tools as Robokiller.
Features of Hiya
- Caller ID and Spam Identification: Hiya identifies suspected spam calls, allowing users to make informed decisions on whether or not to answer (source).
- Community-Based Spam Detection: Drawing from reports from millions of users, Hiya flags numbers that are more likely to be spam based on community feedback (source).
- Call Screening: Premium users can access advanced screening features, including voice recognition capabilities for identifying spam, which is available for T-Mobile and other major US carriers (source).
Comparing Robokiller and Hiya on T-Mobile
Robokiller stands out as a straightforward and effective tool for blocking No Caller ID calls without needing complex settings. Hiya's community-driven approach may provide additional insights, but it often involves user management to maintain effectiveness. For T-Mobile users, Robokiller's reputation for simplicity and effectiveness makes it a strong candidate for most users.
Customer Insights
- Users describe Robokiller as a game-changer in the fight against unwanted spam calls, often noting its efficiency and ease of setup. The ability to send spam calls to Answer Bots is particularly praised.
- Hiya users appreciate its identification features, but some report frustration with the need for manual updates and the potential for legitimate calls being flagged erroneously.
What We Recommend
- For comprehensive spam call protection, download Robokiller, which actively blocks spam and communicates with scammers on your behalf.
- If you prefer community-driven spam detection, consider Hiya, but be prepared for potential management of your spam list.
- Both apps are available for download on the App Store, making them easily accessible for T-Mobile iPhone users.



