AI Phone
Real-time AI call translator that lets you speak your language while they hear theirs.
- Category
- Audio & Voice
- Pricing
- Free to start; in-app subscription/credit-based paid plans on iOS and Android (exact tier pricing set via App Store/Google Play)
- Best for
- AI Phone is well suited to immigrants and expatriates handling daily calls (banks, landlords, appointments) in a new country, international travelers booking hotels or navigating logistics abroad, and small business owners or professionals who occasionally need to call international clients, suppliers, or partners without hiring a human interpreter.
- Official site
- www.aiphone.ai
- Last updated
- August 2026
AI Phone, built by Second Phone Number Inc., is a consumer mobile app that solves a specific everyday problem: talking on the phone with someone who doesn't share your language. Rather than a text-translation tool, AI Phone performs live, two-way speech-to-speech translation during real phone calls — each person speaks their own language and hears the other person's words translated in near real time. The same translation engine extends to video and voice calls inside WhatsApp, WeChat, and Telegram, displaying bilingual live subtitles on both participants' screens, and the company markets a simple invite-link flow so the other party doesn't need to install anything themselves.
Beyond phone and app-based calling, AI Phone also offers standalone voice translation for in-person bilingual conversations and a camera mode that translates photographed text — restaurant menus, street signs, documents — instantly. It supports over 150 languages and accents and specifically markets accuracy across accents, dialects, slang, and mixed-language speech, differentiating itself from simpler consumer translator apps. The company positions three core audiences directly on its marketing site: immigrants adapting to daily life in a new country, travelers navigating bookings and directions abroad, and small business owners or professionals coordinating internationally. AI Phone has been featured on Product Hunt and covered by outlets including Yahoo Finance and Business Insider for expanding its live call-translation language coverage.
AI Phone is well suited to immigrants and expatriates handling daily calls (banks, landlords, appointments) in a new country, international travelers booking hotels or navigating logistics abroad, and small business owners or professionals who occasionally need to call international clients, suppliers, or partners without hiring a human interpreter. It's less suited to users who need zero-latency, professional-grade simultaneous interpretation for high-stakes business negotiations or legal/medical settings, where the reported translation delay and consumer-grade accuracy may not meet the bar required.
Key features
Live Two-Way Phone Call Translation
Translates a real phone call in real time — each party speaks their native language and hears the other person's speech translated instantly, without needing a third-party interpreter.
WhatsApp / WeChat / Telegram Call Translation
Extends live translation to video and voice calls inside popular messaging apps, displaying bilingual subtitles on-screen for both participants during the call.
Invite-Link Calling
Lets a user invite anyone to a translated call via a simple link, so the other party doesn't need to download or install the app themselves.
Standalone Voice & Conversation Translation
Translates spoken words and in-person bilingual conversations in real time, useful for face-to-face situations without a phone call involved.
Camera/Photo Translation
Translates photographed or saved images — restaurant menus, street signs, documents — instantly using the phone's camera.
150+ Language & Accent Support
Covers a broad range of languages and accents, with the company specifically marketing high accuracy across accents, dialects, slang, and homophones — not just standard textbook speech.
Pricing breakdown
Free / Start Free
- Try live call translation
- Limited free usage/credits to test accuracy
- Access to camera and conversation translation
Paid subscription/credits
- Extended call-translation minutes
- Continued access after free credits are used
- Priority translation processing
Pros and cons
Pros
- Strong, verifiable App Store rating — 4.8/5 with over 1 million users, notably higher and more broadly validated than most single-purpose translation apps
- True two-way, real-time speech translation on live phone calls is a harder technical problem than text translation, and is the app's clear core differentiator
- Cross-platform reach into WhatsApp, WeChat, and Telegram calling covers the messaging apps most commonly used for international communication
- The invite-link mechanism means the other party never needs to install anything, lowering friction for one-off calls (e.g., calling a business or government office abroad)
- Positive, specific user testimonials describe real use cases — client calls, international relationships, family calls, business negotiations — beyond generic marketing claims
Cons
- Multiple user reviews report a noticeable delay (around 5 seconds) between speaking and hearing the translation, which can make fast back-and-forth conversation feel stilted
- Credit-based billing means no plan offers truly unlimited translation minutes; some reviewers explicitly suggest the app would be better priced per-minute instead
- As a consumer mobile app, there's no G2 or Capterra listing to independently benchmark it against other translation tools the way B2B software typically is
- Audio translation on some call types is described in reviews as one-way rather than fully simultaneous in every mode, which can create confusion about which mode to use for a given call type
- Heavy reliance on cloud processing means call quality and translation accuracy depend on the user's mobile data/Wi-Fi connection during the call
What reviewers say
AI Phone holds a strong 4.8/5 rating on the Apple App Store, with the company citing over 1 million users worldwide as of mid-2026. User reviews are largely positive about real-time call translation accuracy, though a recurring complaint concerns a multi-second translation delay and confusion around credit-based pricing.
Frequently praised
- Consistently praised for enabling natural phone conversations across language barriers without a human interpreter
- High accuracy reported even with technical terminology, accents, and work-specific vocabulary
- Works well for both professional (client calls, business negotiations) and personal (family, relationships) cross-language communication
Frequently criticized
- Noticeable translation delay (reported around 5 seconds by some users) can interrupt natural conversational flow
- Credit-based pricing means no plan offers unlimited translation minutes, which some users find confusing or prefer priced per-minute instead
- Some translation modes are reported as one-way rather than fully simultaneous, requiring the right mode to be selected for a given call type
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Compare →Frequently asked questions
Does the other person on the call need to install AI Phone too?
No for regular phone calls and invite-link calls — the app is designed so the other party doesn't need to download anything; for in-app messaging translation (WhatsApp, WeChat, Telegram) they simply see translated subtitles on their end.
How many languages does AI Phone support?
It supports over 150 languages and accents for live call, voice, conversation, and camera-based translation.
Is there a delay during translated calls?
Yes — some users report a delay of a few seconds between speech and translation, which is a commonly cited trade-off for real-time AI speech translation.
Can I use AI Phone for video calls, not just voice?
Yes — it supports two-way video and voice call translation inside WhatsApp and similar apps, with bilingual live subtitles shown to both participants.
Is AI Phone free?
It's free to start and download, with paid in-app subscription or credit-based plans required for extended usage beyond the free allowance.
Can it translate photos, like menus or signs?
Yes — its camera mode can translate a photographed or saved image (menus, signs, documents) instantly.
Ready to try AI Phone?
Head to the official site to explore pricing and start a free trial where available.
Visit AI Phone →