Hiya vs Assindo: Spam Protection or an AI Phone Assistant?

If you are looking for a Hiya alternative, start with what is bothering you. If it is spam, robocalls and cloned-voice scams, Hiya is one of the best tools available, and you may already be using it without knowing: Hiya powers Samsung Smart Call and runs inside mobile operator networks. If what bothers you is the calls themselves, the missed ones you never return and the ones to businesses you keep postponing, a spam blocker will not fix that. That is the job of an AI phone assistant like Assindo, which answers the calls you do not pick up and makes calls for you. Hiya facts below come from Hiya's own pages and store listings, as of October 2026.

Quick answer

• Stay with Hiya if you want free basic spam protection, caller ID, and, in the US and Canada, call screening plus alerts when a caller seems to use an AI-generated voice.
• Add Assindo if you want an AI assistant that takes the message on calls you miss and also phones businesses for you: booking, asking, getting through phone menus and waiting on hold.
• They do different jobs. Hiya decides which calls deserve your attention. Assindo handles the conversation when you cannot or do not want to.
• Assindo is not a Hiya replacement for spam blocking. It is not a caller ID database and it does not stop calls before they ring.

Hiya vs Assindo at a glance

What Hiya does better

Hiya is a serious, well-engineered protection product, and on several points it is simply the better choice.

Scale of call data. Hiya says it analyzes more than 28 billion calls a month, reaches 550 million subscribers, covers 40+ countries and works with 21+ operator and OEM partners. Its operator page states that Hiya powers both the Hiya consumer app and Samsung Smart Call, and that its carrier solution runs directly inside operator networks. Assindo has no database of phone numbers at all.

Blocking before the phone rings. Hiya automatically blocks numbers reported as unwanted, using its phone number reputation data. Assindo lets your phone ring as usual and only picks up calls you leave unanswered.

Deepfake and fraud detection. This is Hiya's standout feature. Hiya's real-time voice analysis listens for patterns that give synthetic voices away and shows an "AI Voice Detected" alert mid-call, and a separate fraud warning flags tactics like urgent payment demands, fake government threats or requests for sensitive information. Hiya's App Store listing says that on iPhone this applies to calls handled by Call Screener, and that Call Screener, AI Voice Detection and fraud alerts are available only in the US and Canada, in English, French and Spanish. Assindo screens callers by asking who they are and why they are calling, but it does not analyze voices for signs of AI. If cloned-voice scams are your main worry (see how to stop AI calls), Hiya is the stronger tool.

Price and a free tier. Hiya's basic protection is free. Hiya Premium on the US App Store is $3.99 a month, $9.99 a quarter or $24.99 a year, with a separate Lookup Plan at $2.99 a month, as of October 2026.

For a closer look at how Hiya stacks up against the other big spam app, read Truecaller vs Hiya.

Looking for a Hiya alternative? Start with the job, not the app

Most people searching for a Hiya alternative fall into one of two groups.

Group one wants better spam protection. Maybe a Premium feature they used moved behind a paywall, maybe Call Screener is not available on their carrier, maybe they live outside the US and Canada. For them, the realistic alternatives are other protection tools: Truecaller, your carrier's free spam filter, or your phone's built-in screening. Assindo is not the answer here, and we would rather say so.

Group two is tired of the phone itself. They already block most spam. What still costs them time is:

• The pharmacy or school calling while they are in a meeting, with no message left.
• A new customer calling a small business from an unknown number and hanging up after a few rings (see the cost of missed calls).
• The calls they have to make: moving a doctor's appointment, asking a garage for a quote, sitting on hold with the airline.

Hiya helps you decide whether to answer. It does not take the message and then go do something about it. That is the gap an AI agent fills.

How Assindo works

Incoming calls. You keep your own number and turn on conditional call forwarding; the app dials the carrier code for you. Calls you do not pick up go to the assistant, which asks who is calling and why, screens out spam, sales and robocalls, takes the message, and sends you a summary plus the full transcript. Incoming calls are unlimited on every plan (fair use).

Outgoing calls. Ask Assindo to call a business and it books appointments, gets through phone menus, waits on hold, talks to the person and reports the outcome with a summary and transcript. It can find the business first, for example "a plumber near me", and then call. You can listen in or steer. Calls usually take 2 to 5 minutes. Assindo calls during business hours only, does not redial someone who just declined, cannot pass voice or identity checks and will not pretend to be you. You verify your number once so businesses see it when the assistant calls.

Everything else. The same AI assistant handles chat, scheduled tasks, web search and posts to X and LinkedIn. It also works from the AI tools you already use: its MCP connector lets ChatGPT, Claude, Gemini CLI and others hand a call to Assindo (see Use Assindo in ChatGPT).

Hiya Call Screener and Hiya AI Phone vs Assindo

The closest overlap is screening, so here is how they compare in practice.

Hiya Call Screener answers unknown calls on your behalf and asks the caller why they are calling, so you can decide whether to pick up. On iPhone it needs call forwarding set up through your carrier (the app guides you), and Hiya notes it may not work with every carrier or plan.

Hiya AI Phone is a separate Hiya app, currently only in the US, with a 14-day free trial. Hiya describes it as a personal AI call assistant that transcribes calls, highlights important details, summarizes conversations, detects scams in real time and detects synthetic voices. Hiya says summaries, transcriptions and recordings are only accessible to you on your device after processing and are not used to train its models. Its FAQ also mentions help with confirming information, gathering details through short calls and scheduling, so it is worth trying if you are in the US and want call notes alongside Hiya's protection.

Assindo screens the calls you decline or miss and turns each one into a message and, when needed, a task. The bigger difference is the outgoing side: you can tell the same AI agent "call the clinic back and move my appointment to Friday" (more in using AI to book a doctor's appointment) and it makes the call, deals with the menu and reports back.

What Assindo costs

Assindo is a paid app with three monthly plans, each with unlimited incoming calls (fair use) and unlimited tasks:

• Personal, $9.99 a month: 1 hour of outgoing calls, 300 messages, no free trial on the monthly plan.
• Professional, $24.99 a month: 3 hours of outgoing calls, 1,000 messages, 3-day free trial.
• Business, $59.99 a month: 6 hours of outgoing calls, 3,000 messages, 3-day free trial.

Yearly billing saves 25 percent and includes a 7-day free trial; outgoing calls during a trial are capped at 20 minutes.

Where Assindo falls short

• No caller ID and no spam database. It cannot tell you who is calling before you answer.
• No deepfake detection. It asks callers what they want; it does not analyze their voice.
• No free plan, unlike Hiya's basic tier and your phone's built-in tools.
• Country limits. Not available in India, and only in supported countries (check the app store listing for yours). The app UI is English only, though the assistant's call language can be changed in Settings > Edit Profile.

Who should pick which

• Hiya if you want free or low-cost protection from spam, robocalls and AI voice scams, especially in the US or Canada, or for an older relative (our guide for seniors covers more options).
• Assindo if spam is already under control and you want an AI receptionist for missed calls and an AI concierge that makes calls for you.
• Both if you get lots of unknown calls and also have a list of calls to make. Hiya filters what rings; Assindo answers what you miss and handles the calls you would rather not make.

When a Hiya alternative makes sense, and when it does not

If you are leaving Hiya because of spam that still gets through, try your carrier's free filter or another protection app before anything else, and keep Hiya's deepfake alerts in mind; few tools match them. If you are leaving because you want something that actually talks to people on your behalf, that is a different category, and an AI phone assistant like Assindo is built for it. Since Assindo uses conditional call forwarding for unanswered calls, choose one service to receive those forwarded calls rather than running two screeners on the same line.

Hiya vs Assindo: FAQ

Is Assindo a Hiya alternative?

For call screening and call handling, yes. For spam blocking, caller ID and deepfake detection, no: Assindo is not a caller ID database or a system-level spam blocker. You may want Hiya, or your carrier's filter, for protection and Assindo for the calls that need a conversation.

Is Hiya free?

Hiya says basic protection is always free. Hiya Premium on the US App Store costs $3.99 a month or $24.99 a year as of October 2026.

Does Samsung use Hiya?

Yes. Hiya states that it powers Samsung Smart Call, the caller ID and spam protection on many Samsung phones. That is separate from the Hiya Spam Blocker app and the Hiya AI Phone app.

Is Hiya Call Screener available outside the US?

Hiya's store listings say Call Screener, AI Voice Detection and fraud alerts are available only in the US and Canada, in English, French and Spanish. Caller ID, spam blocking and number lookup are available in more regions.

Can Hiya make calls for me?

Hiya Spam Blocker is built to protect you from incoming calls. Hiya AI Phone (US only) focuses on transcripts, summaries and scam protection, and Hiya mentions help with short calls to gather details. If you want an AI agent to call businesses, book appointments and wait on hold for you, that is what Assindo is designed for.

Sources

• Hiya homepage, accessed October 2026
• Hiya Spam Blocker product page, accessed October 2026
• Hiya AI Phone, accessed October 2026
• Hiya for mobile operators (Samsung Smart Call FAQ), accessed October 2026
• Hiya app data protection and privacy policy, accessed October 2026
• Hiya on the US App Store, accessed October 2026
• Hiya on Google Play, accessed October 2026
• Assindo, accessed October 2026