9 Best Captioning Apps of 2026

InnoCaption is the strongest call captioning app because it gives you a choice most rivals do not: during any call you can switch between a live stenographer and automated speech recognition. That matters for a call with a doctor, a bank or an insurer, where a misheard number causes real trouble. Mezmo, the developer, says the service is free to eligible users in the United States through the FCC's Telecommunications Relay Services Fund. The app works like a regular dialer, captions both incoming and outgoing calls, and uses One Number technology so you can keep your own phone number. Recent updates add a Custom Word List for names and technical terms and a picture-in-picture window that keeps captions on screen while you use other apps. Typed replies are spoken with text-to-speech, and AI Refine turns short replies into full sentences. Saved transcripts, captioned voicemail and AI summaries round it out. It is a phone tool, though, so pair it with a separate app for face-to-face talk.

Rylo is the app Nagish Inc. now publishes on the App Store, and it is the best all-in-one pick for people who want one app for calls and conversations. It works like your normal phone app but shows speech-to-text captions on every call, and the developer says captions are generated with end-to-end encryption and no human involvement. If you prefer not to speak, you can type and choose a voice for text-to-speech. A built-in feature called Rylo Live Transcribe captions in-person moments such as family dinners, airports or a doctor's appointment, so you do not need a second app. A personal dictionary, quick keyboard replies, visual voicemail, spam filtering and a profanity blocker are included. Captions are offered in English, Spanish, French, Japanese, Hebrew and Italian. The trade-off against InnoCaption is that there is no human stenographer to fall back on when audio is poor. Rylo says the service is FCC certified and free to individuals with hearing loss.

Live Transcribe & Sound Notifications is the default conversation captioning tool on Android, and on most phones you can open it from Settings, then Accessibility. It turns nearby speech into text in real time in over 80 languages and dialects, and the redesigned conversation screen makes it easier to type replies back. You can add custom words such as names, set the phone to vibrate when someone says your name, and plug in a wired, Bluetooth or USB microphone for better pickup in a noisy room. On foldable phones, text can show on the outside screen so the other person sees your reply. Transcripts are not saved by default, but you can keep them on the device for 3 days. Sound Notifications alerts you to smoke alarms, a crying baby or appliance beeps. Google built it with Gallaudet University and RIT/NTID. It does not caption phone calls, and its 3.8 Google Play rating reflects complaints about punctuation and dropped words.

Live Captions is the easiest place to start for iPhone users, because it is already on the phone. Turn it on in Settings under Accessibility, and the iPhone transcribes spoken audio in apps such as FaceTime or Podcasts, on phone calls, or from the microphone when someone is talking to you. You can change the text size and color, drag the caption window around, make it full screen or hide it. For calls, Apple lets you keep captions for 1 minute, which clears them when the call ends, or 1 hour, which lets you copy or screenshot the transcript but plays a short announcement that the call is being transcribed. The limits are clear in Apple's own guide: it needs an iPhone 11 or later, it is not available in all languages or regions, and accuracy may vary, so Apple says not to rely on it in high-risk or emergency situations. For important calls, a captioned telephone app with human backup is safer.

CaptionCall Mobile takes the captioned home phone service from Sorenson and puts it on your iPhone, iPad or Apple Watch. Once you create an account with the information federal rules require, you get a CaptionCall Mobile number, or you can keep your existing number and forward calls to the app. From there it behaves like a regular phone: you dial from your saved contacts, receive calls and read captions in real time, and voicemail arrives captioned with alerts. The listing says CaptionCall transcribes both sides of the conversation in a customizable, easy-to-read format, and that the service may use a live operator to generate captions. As an FCC-approved captioned call service, it costs nothing for people with qualified hearing loss. Its 4.8 rating from about 3,700 reviews is among the best here. What it lacks is breadth: there is no in-person mode described, and the listing says little about languages or custom vocabulary compared with InnoCaption or Rogervoice.

Rogervoice stands out for languages and display options. The app transcribes calls word for word in real time and says it handles over 100 languages, so you can dial overseas and speak Spanish, Italian, Vietnamese or Turkish. Hearing friends and family can install the app too, and on app-to-app calls they see a copy of the captions, which helps them check you caught what they said. A recent update added in-person transcripts for face-to-face conversations. The interface is the most adjustable here, with high-contrast, dark, light and color-sensitive themes and extra-large fonts. Visual voicemail, keyboard quick replies and several text-to-speech voices are included, and emergency calls through E911 are captioned in the US. Rogervoice says it never stores audio or transcriptions and keeps transcripts on your device. In the US it is FCC certified and free for eligible users, but you must give your Social Security Number and address to register, and there is no human captioner fallback.

Ava is the best choice when more than two people are talking. Instead of one stream of text, you invite others to join your session by QR code or link, and Ava shows a color-coded transcript of who says what. The free plan gives unlimited basic captions in sessions of up to 40 minutes, saved transcripts and text-to-speech for typed replies. The Community plan adds 3 hours a month of premium captions, which Ava puts at about 5 errors in 100 words, for $9.99 per month paid annually or $14.99 paid monthly, with extra hours at $4.99. For key conversations, Ava Scribe gives its highest accuracy, at about 1 error in 100 words. You can teach it your vocabulary by tapping words to correct them, and translate conversations in 16 languages. Ava CC brings captions to Zoom, Teams and Google Meet on a computer. The downsides are the 40 minute cap on free sessions, the limited premium hours and the lack of phone call captioning.

Hamilton CapTel has run captioned telephone service for more than 20 years and says it has made more than 400 million captioned calls possible at no cost to users. Hamilton Mobile CapTel brings that service to the iPhone and iPad. Like InnoCaption, it gives you a choice of caption source: Auto, which is computer-generated, or Assisted, where an operator helps. Captions work on incoming and outgoing calls, voicemail is captioned, and you get call forwarding and custom caller ID. You can set the font style, color and size, review captions in your call log, and use Browser Caption Viewing to show captions on a larger screen at the same time, which helps people with low vision. Customer care is available 24/7/365. The weak point is the app itself: it holds a 3.5 rating from only about 29 US ratings, far behind InnoCaption and CaptionCall. Choose it mainly if you already use a Hamilton CapTel phone at home.

Otter is not an accessibility app, but it is widely used by hard of hearing people at work and in class because it transcribes in real time and keeps a searchable record. Start a recording in one tap or let it join Zoom, Google Meet or Microsoft Teams, and the transcript builds as people speak, with speakers you can tag and train it to recognize. Afterward you get automated summaries, outlines and AI Chat to ask about what was said, plus slide capture during virtual meetings. You can edit the text, highlight key points and play back audio from any word. The free Basic plan includes 300 monthly transcription minutes, and Otter Pro costs $16.99 per month or $99.99 per year through the US App Store. Transcription is limited to English, Spanish, French and Japanese, and Otter does not caption phone calls or describe features made for Deaf users. Treat it as a meeting tool that happens to caption well.