Best text to speech app for iPhone: what to check

Pick a text to speech app for your iPhone with five checks: the voice, offline use, your formats, keeping your place and the real price.

Short answer

Judge a text to speech app on five things: how the voice sounds after ten minutes, whether it plays in Airplane Mode, whether it opens the files you read, whether it keeps your place, and what you pay after the trial. Speak Screen is free and fine for short pages. For long reading, pick the app that passes all five on your own files.

You'll find dozens of text to speech apps for iPhone, and most of them sound fine in a ten-second demo. The differences show up on day three, on a train with no signal, halfway through a 300-page book. Run these five checks on your own files before you pay for anything.

Check five things before you pay

CheckWhat to look forHow to test it
VoiceStill pleasant after ten minutesListen to a full article
OfflinePlays with no connectionTurn on Airplane Mode
FormatsOpens the files you actually readShare your three most common files
Your placeStarts where you stopped, in every fileClose the app, reopen, press play
PriceWhat you pay after the trial endsRead the plan screen before you tap

Each check below names the trade-off, because every app gives something up.

Listen to the voice for ten minutes

A voice demo plays one polished sentence. Your real reading has names, numbers, abbreviations and long sentences. Pick an article of about 1,500 words and listen to the whole thing at the speed you plan to use.

Listen for three things:

  1. Breathing room. A good voice pauses at commas and slows at the end of a sentence. A flat one runs every clause together.
  2. Small words. Hear how "Mr.", "Chapter IV", "3/8" and "e.g." come out. You want "Mister", "chapter four", "three eighths" and "for example".
  3. Clutter. On a web page or a paper, check whether you hear the links, the citation brackets and the page numbers. In Aloudeo they stay off the voice, as the speech cleanup page shows line by line.

The trade-off: the most lifelike voices take more power to run. Some apps run them on a server, others download them to your phone. Both can sound natural. What changes is where your text goes and whether you need signal.

Test offline in Airplane Mode

This test takes one minute and catches the biggest surprise:

  1. Open the app and press play on a file once, so any voice download finishes.
  2. Swipe down from the top right corner to open Control Center.
  3. Tap the Airplane Mode button.
  4. Open a different file you have never played and press play.

If you hear it, the voice runs on your phone. If you see an error or a spinner, the voice streams from a server, and you lose it on planes, in tunnels and abroad without data. With Aloudeo, you download the voice once the first time you press play, and after that you hear everything on your shelf with no connection. Read more on listening offline, or see how it plays out on a daily commute.

The trade-off: cloud voices let you use the same voice on your laptop, your tablet and your phone. On-device voices keep your text on your phone and keep playing with no signal.

Count the formats you actually open

Write down where your reading comes from last week. For most people it's a mix of:

  • PDFs from email and work
  • ebooks as EPUB or MOBI files
  • articles saved from Safari
  • Word documents and notes
  • paper pages you'd like to scan

Then share one of each to the app you're testing. Some apps open only web pages and PDFs. Aloudeo opens PDF, EPUB, MOBI, AZW3, FB2, Word (DOCX), RTF, Markdown, plain text, web pages and camera scans. Ebooks need to come without DRM: books bought in a store that locks them stay inside that store's app. The ebook formats page explains where DRM-free books come from.

Make sure you keep your place

Speak Screen reads what's on your screen, so you find your spot by hand every time you come back. For a book or a stack of papers, you want every file to start at the sentence where you stopped.

Test it: play a file for two minutes, open another file, then go back to the first one and press play. You should hear the next sentence, with no scrolling. Check that you see the time left on each file too, so you can pick a 20-minute article for a 20-minute walk. The listening time calculator shows how long any word count takes at your speed.

Read the price page twice

Most reader apps mix a free plan, a weekly price, a yearly price with a trial, and sometimes a one-time price. Before you tap anything:

  1. Find the price you pay after the trial, per year.
  2. Check what the free plan limits: minutes a day, voices, speed or formats.
  3. Set a reminder for the day before the trial ends.

To cancel any App Store subscription on your iPhone, open Settings, tap your name at the top, then tap Subscriptions.

Here is the Aloudeo price, in full: the free plan gives you 15 minutes of listening a day at speeds from 0.75x up to 2x. Pro takes you up to 3x and costs $4.99 a week, $39.99 a year with a 7-day free trial, or $79.99 once for lifetime use. You make no account and you see no ads.

Compare the three kinds of apps

Speak ScreenCloud voice appsOn-device reader apps
PriceFreeUsually a subscriptionFree plan plus Pro
Works offlineWith downloaded Apple voicesOften only the basic voicesYes
Keeps your placeNoUsuallyYes
Skips page clutterNoVariesVaries, test it
Works on your laptop tooOn a MacOften, with a browser extensionUsually phone only

Be fair to each kind. Speak Screen costs nothing and works in every app you have, which beats any download for a quick listen. Cloud apps like Speechify give you a wide choice of voices and follow you from your phone to your browser, which matters if you read on a laptop all day. On-device apps keep your files on your phone and play anywhere, which matters if you listen on the move.

Try this one-hour test

Give yourself one evening and two or three candidate apps:

  1. Pick one PDF, one article and one ebook chapter you want to hear anyway.
  2. Share all three to each app.
  3. Listen to ten minutes of the PDF in each, at the same speed.
  4. Turn on Airplane Mode and try the article.
  5. Close everything, reopen each app and press play on the ebook.
  6. Read each price screen and write down the yearly cost.

By the end you know which voice you can stand for hours, which app plays without signal, and what you'll pay in a year. That beats any review, this one included, because you test it on your own reading.

Know where Aloudeo fits

Pick Aloudeo if you listen to long PDFs, books and saved articles on your iPhone, often without signal. You choose from 14 English voices, plus voices in Spanish, French, Japanese and Mandarin. Every file keeps your place on a shelf, the sentence you hear lights up on the page, and page numbers and citations stay off the voice. Pick something else if you mostly read on a laptop or want a voice in a language outside that list.

For a row-by-row look against the free option, read Aloudeo vs Speak Screen. To try the free route first, follow the three ways to hear a PDF on iPhone.

Join the Aloudeo waitlist at aloudeo.app.

Questions you ask about this

Is there a free text to speech app for iPhone?
Yes. Speak Screen and Speak Selection come free with iOS, in Settings > Accessibility > Spoken Content. Most reader apps also have a free plan with limits on time, voices or speed.
Do I need internet for text to speech on iPhone?
It depends on the app. Apple's downloaded voices and voices that run on the phone work offline. Voices that stream from a server stop when you lose signal. Test any app in Airplane Mode before you pay.
Can a text to speech app read Kindle books?
Only books without DRM. Books you bought in the Kindle store stay locked to the Kindle app. EPUB, MOBI and AZW3 files without DRM open in a reader app.

Listen to your own PDFs and books.

Open a PDF, an ebook or a web page on your iPhone, press play, and listen offline. Join the list for launch day.