5 Best AI Call Assistant Apps and Tools in 2026
The best AI call assistant depends on the job you want handled. OsmO, Mitra, and Call.io can answer incoming calls and place outbound calls; Hiya Spam Blocker focuses on caller identification, spam protection, and incoming screening; Apple's built-in Call Screening asks unknown callers why they are calling before an iPhone rings. This comparison uses current official product and store sources checked on August 2, 2026.
What to look for in an AI call assistant
Not all "AI call assistant" apps do the same job. Before you pick one, check which of these it actually covers:
- Incoming-call handling — does it answer missed or configured calls, or only identify and silence them?
- Outbound calling — can it place a call for you, or is it limited to incoming calls?
- Spam screening — does it identify, screen, silence, or block suspected spam, and what can still get through?
- Call record — does it provide a caller reason, notes, a transcript, or a summary after the call?
- Phone and carrier fit — check iPhone or Android support, country availability, carrier requirements, and whether call forwarding is used.
- Current cost — compare the live purchase screen because plans and localized prices can change.
The best AI call assistant apps, compared
1. OsmO — incoming and outbound calls on iPhone and Android
OsmO - AI Phone Assistant handles configured incoming calls through call forwarding on your existing number. It can ask who is calling and why, screen obvious spam, take a message, and provide a transcript after an assistant-handled call. OsmO can also place outbound calls. It is available on iPhone and Android and is free to download; paid plans and any available trial are shown in the relevant store purchase screen.
2. Mitra — incoming and outbound calls on iPhone
Mitra is a personal AI phone assistant that says it can pick up incoming calls, make calls, follow up, screen spam, and summarize what happened while using the user's own number. Its current US App Store listing is iPhone-only and requires iOS 26. Mitra is a close functional comparison when you want both incoming and outbound calling on an iPhone.
3. Call.io — incoming and outbound calls on iPhone and Android
Call.io says it answers calls using custom rules, takes notes, provides summaries, screens unknown callers, and can place outbound calls such as reservation requests. Its official site links to both Apple and Google Play apps. Call.io uses conditional call forwarding for incoming-call handling, so carrier setup and local availability are worth checking before you choose it.
4. Hiya Spam Blocker — caller ID, protection, and incoming screening
Hiya Spam Blocker focuses on caller identification, spam and fraud protection, and incoming-call screening on iPhone and Android. Its Call Screener can answer calls you do not pick up and ask who is calling and why. Hiya says that feature requires Premium, works in the US and Canada on supported carriers, and requires a single active SIM on Android. This is an incoming-call tool rather than an outbound-calling assistant.
5. Apple iOS 26 Call Screening — free and built-in
Apple's built-in Call Screening can ask callers from unsaved numbers why they are calling before the iPhone rings. The reason is shown to the user, who can then decide whether to answer. It does not place outbound calls and does not require a separate app, so it is the simplest comparison point for someone who only needs basic unknown-caller screening.
Business phone systems and consumer assistants solve different problems. If you need shared numbers, team routing, or CRM workflows, compare business-focused tools separately; the OsmO vs Beside comparison explains that distinction.
AI call assistant comparison table
| App | Answers calls | Makes calls | Spam screening | Transcripts | Platforms | Price |
|---|---|---|---|---|---|---|
| OsmO | Configured calls | Yes | Screens obvious spam | Transcript | iPhone & Android | Free download; store-priced plans |
| Mitra | Yes | Yes | Screening | Summary | iPhone | Free download; in-app purchases |
| Call.io | Yes | Yes | Screening | Notes, transcript & summary | iPhone & Android | Free download; in-app purchases |
| Hiya Spam Blocker | Missed calls | No | Caller ID, screening & blocking | Screening result | iPhone & Android | Call Screener requires Premium |
| Apple Call Screening | Unknown callers | No | Asks reason; carrier spam filter separate | Caller reason | iPhone | Built in |
Which AI call assistant is right for you?
- Need incoming and outbound call handling on iPhone and Android? Compare OsmO and Call.io.
- Need incoming and outbound calling on iPhone? Compare OsmO, Mitra, and Call.io.
- Mainly need caller ID, spam protection, and incoming screening? Review Hiya Spam Blocker.
- Only need basic unknown-caller screening on an iPhone? Start with Apple's built-in option.
Frequently asked questions
What is the best AI call assistant app?
The best fit depends on the task. OsmO, Mitra, and Call.io can handle incoming and outbound calls. Hiya Spam Blocker focuses on caller ID, spam protection, and incoming screening. Apple's built-in tool covers a basic ask-before-ringing flow on iPhone.
Is there an AI call assistant that makes calls for me?
Yes. OsmO, Mitra, and Call.io all describe outbound calling in their current official product or store materials. Their supported tasks, setup, platforms, and pricing differ.
What's the best AI call assistant for iPhone?
OsmO, Mitra, and Call.io are options if you want incoming and outbound call handling. Hiya Call Screener is an incoming-screening option on supported carriers. Apple's built-in Call Screening covers the basic ask-before-ringing flow without another app.
Are AI call assistant apps free?
Several are free to download but use paid plans or in-app purchases for full service. Apple's built-in screening does not require a separate app. Check the current purchase screen because prices and offers vary by platform and country.
Official sources checked
Product capabilities and availability were checked on August 2, 2026. Store prices and offers can change.
- OsmO: feature overview, outbound calling, and pricing.
- Mitra: US App Store listing.
- Call.io: official site, US App Store listing, and Google Play listing.
- Hiya: Spam Blocker overview and Call Screener requirements.
- Apple: Manage unknown callers on iPhone.
Try OsmO on your phone
OsmO can handle configured incoming calls and place outbound calls on iPhone and Android. Free to download; paid plans are shown in the app.
Related reading: What is an AI phone assistant? · AI receptionist app · Best Truecaller alternative · AI call screening explained · AI that waits on hold · An AI that makes calls for you · OsmO vs Beside