An AI call assistant answers your phone, asks who is calling and why, and tells you what happened. Some also make calls for you. Answer two questions and we will tell you which of these five to install — even when that is not us.
Yes, we make one of them. That is exactly why the picker sends you elsewhere when the honest answer is elsewhere.
1 · What do you actually need?
2 · Which phone?
An AI call assistant talks to the caller for you, acts on the answer, and writes down what happened. Most run on your existing cell phone number through call forwarding, so missed calls go to the assistant instead of voicemail.
Ordered by how much of the job they take off you. Each card says who should skip it.
OsmOiPhone & Android · USA, UK, Australia, India & Canada
Answers the calls you miss, asks who and why, and sends a summary with the full transcript. Also makes calls, several at once, and waits on hold.
Incoming: answers, asks, takes a message
Outbound: parallel calls, hold queues
Summary, transcript and recording
Per-caller rules, cloned voice, own line
Pick it if › you want the call handled, not just labelled.
Skip it if › you are outside the United States, United Kingdom, Australia, India or Canada, or you need reverse number lookup.
Call.ioiPhone & Android
Answers with your custom rules, screens unknown callers, and returns notes and a summary. Makes outbound calls too.
Incoming: answers with custom rules
Outbound: yes, one call at a time
Notes, transcript and summary
Uses call forwarding — check your carrier
Pick it if › you want both halves and our carrier list does not cover you.
Skip it if › you need several places called at the same time.
Get it: App Store · Google Play
MitraiPhone only · requires iOS 26
A personal AI phone assistant: picks up, makes calls, screens spam and summarises what happened, on your own number.
Incoming: picks up and screens
Outbound: calls and follow-ups
Summary of what happened
No Android version at all
Pick it if › you are committed to iPhone and already on iOS 26.
Skip it if › anyone you share a plan with is on Android.
Get it: App Store
Hiya Spam BlockeriPhone & Android · US & Canada
Caller ID, fraud warnings and auto-blocking, plus a Premium Call Screener that asks who is calling.
Caller ID and fraud warnings
Screening needs Premium
Android: single active SIM only
Never places a call for you
Pick it if › identification matters more to you than delegation.
Skip it if › you want anything actually done on the call.
Get it: App Store · Google Play
Apple Call ScreeningiPhone only · part of iOS
Asks unsaved numbers why they are calling before your iPhone rings. Free and built in.
Asks unknown callers their reason
Free — already on your phone
Screening and voicemail are separate
Never places a call for you
Pick it if › you only need obvious spam to stop ringing.
Skip it if › you need an assistant to carry out tasks.
Get it: Apple support
Yes, no, or the catch — in one line.
Checked against vendor pages, August 2026. Confirm prices on your store screen.
| App | App Store rating | Google Play rating | Last app update |
|---|---|---|---|
| OsmO | 4.2 ★ (13 ratings) | 4.2 ★ (130 reviews) | Oct 29, 2026 |
 Phone by Google | — | 4.4 ★ (52.4M reviews) | Oct 29, 2026 |
| Hiya | 4.5 ★ (238,218 ratings) | 3.8 ★ (263K reviews) | Oct 26, 2026 |
| Mitra | 4.6 ★ (379 ratings) | — | Oct 27, 2026 |
| Callio | — | 3.3 ★ (51 reviews) | Sep 16, 2026 |
Store data last changed October 31, 2026 (US App Store and Google Play). A rating on a few hundred reviews moves faster than one on millions; an app that ships updates often is usually still being worked on.
Two of these five cannot make a call at all, and only one rings several places at once.
OsmO
Parallel calls · waits on hold
Call.io
Outbound, one at a time
Mitra
Outbound · iPhone only
Hiya Spam Blocker
Incoming only
Apple Call Screening
Incoming only
Hand OsmO a task and a few places: it rings them together, waits on hold, and comes back with one answer.
Published features, not hands-on rankings.
Rings three places in parallel and comes back with one answer.
Sits through the hold music and tells you what they said.
Reads your website and documents so callers get correct answers.
Answers in your own cloned voice, on an optional separate line.
“It screens scam callers … and automatically blocked them when they refused to display their name and contact information, so they won’t bother me. Affordable to me. Thank you — 5 stars.”
David L. · Google Play
“Too good — an AI call assistant app I’d needed for a long time, with AI auto-call features that are not available in every app … professional looking design … one of the best for its price and design.”
Max · App Store
There is no single winner among AI call assistants. For incoming and outbound calls on any phone, pick OsmO or Call.io; on iPhone only, add Mitra; for spam labels, Hiya; for free basic screening on iPhone, Apple Call Screening.
Three do: OsmO, Call.io and Mitra. Only OsmO rings several places at once and waits on hold for you.
No. OsmO, Call.io and Mitra work on the number you already have. OsmO and Call.io use conditional call forwarding, which is reversible with one tap.
OsmO, Call.io and Hiya Spam Blocker. Mitra (iOS 26) and Apple Call Screening are iPhone-only.
Most are free to download and charge for the main feature. OsmO has a 7-day free trial, Hiya’s Call Screener needs Premium, and Apple Call Screening is free on iPhone.
Not if you get a record. OsmO asks why they are calling and sends you a summary plus the full transcript, so an important call still reaches you as a message.
On OsmO, yes: per-caller instructions like sharing a gate code with delivery drivers or always connecting family. Call.io also has custom rules; Hiya and Apple offer settings only.
Software that answers your phone and talks to the caller for you. It asks who is calling and why, follows your rules, and gives you a record; some also make calls for you.
A spam blocker checks the number against a list of reported numbers and silences it, without talking to the caller. An AI call assistant has the conversation, so it can tell a courier from a scam and take a message.
Checked August 2026 against each vendor's own pages. Features, availability and prices change without notice.
Related reading: Best Android and iPhone call screening apps · Best Truecaller alternative · What is an AI phone assistant? · AI call screening explained · AI that waits on hold · OsmO vs Mitra
OsmO
AI phone assistance
for a quieter life.
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