Reading to learn a language on your iPhone: the honest options

Here is a small absurdity of language learning in 2026. The method almost everyone now agrees on — read a lot of things you can mostly follow, look up what you cannot — is best served by software designed for a device most people do not read on.

Reading happens on phones. In bed, on trains, in the four minutes before a meeting starts. Yet the reading tools with the deepest reputations grew up as browser extensions, and some still have no phone app at all.

I build one of the apps below, which you should factor in. Everything I say about the others is checkable on their own sites.

The distinction nobody makes clearly enough

When a tool says it works on iOS, it means one of two things, and the marketing rarely distinguishes them.

For most software this gap is academic. For a reading tool it is not, because reading sessions are long, constantly interrupted, and depend entirely on the thing remembering where you were.

What actually exists

Readlang — no App Store app, and that is deliberate

Readlang is a genuinely lovely web reader with an extension that lets you click any word on any page. On a laptop it is the best of its kind and costs $6 a month.

On a phone, Readlang’s own site points iOS and Android users at home-screen installation instructions. There is no native app. If you read mostly at a desk and occasionally on a phone, that is a non-problem. If it is the other way around, you will feel it every session.

LingQ — real apps, a lot of furniture

LingQ ships proper iOS and Android apps, so the app-versus-bookmark question does not apply. The trade is different: a decade of accumulated features has to fit on a screen the size of your hand, and reading has to compete with everything built around reading.

Some people like the density and I am not going to pretend they are wrong. Install it and judge for yourself — it costs nothing to look.

Kindle plus a foreign-language dictionary — closer than people think

Underrated, and I want to give it a proper paragraph. Buy a Spanish book, install a Spanish-English dictionary, and you get tap-to-define plus a Vocabulary Builder listing everything you looked up. The reading experience beats every learning app on this page, because reading is the only thing Amazon has ever optimised for.

Then it stops. The words sit in a list that is not scheduled, not graded, and does not follow you into the next book. You looked up hidalgo and in three weeks you will look it up again. That missing second half is the entire reason this category of app exists.

Anki — the review half, and only that

AnkiMobile is a one-off paid app and a fine scheduler. It is not a reader, so you are supplying every card by hand — on a phone, which is exactly the kind of friction that quietly ends habits around week three.

Google Translate’s camera — for signs, not for reading

Worth mentioning because a lot of people try it first. Point the camera at text and the translation appears in place, which is genuinely miraculous for a menu or a train timetable.

It is a poor way to read, though, and for an interesting reason: it replaces the foreign text with your own language, so your eyes never spend time on the thing you are trying to learn. You end up reading English through a Spanish-shaped window. Useful when you need to understand something. Close to useless when you want to acquire it.

A dedicated e-reader — the sleeper option

Kobo devices, and Kindle hardware, run the same dictionary trick as the app with the significant advantage that there is nothing else on the device to distract you. If your problem is that you pick up your phone to read and put it down having checked three other things, the answer might be hardware rather than software.

Same limitation as before: the words go into a list, and the list does nothing.

Lemnly — what I built and why

Lemnly is a native iPhone and iPad app. Tap a word for the translation, part of speech, CEFR level and an example; tap once more for what the word is doing in that sentence grammatically. The card closes behind you and the page has not moved. Everything you tapped comes back later on an FSRS schedule.

It ships with graded stories from A1 to B2 and a searchable shelf of free classics, and takes a pasted link, an EPUB or PDF, or a photo of a printed page. Free, no cap on saved words.

The limits, stated plainly: three languages — Spanish, German, English — and no browser extension, so reading on the open web means pasting a link. If either matters to you, one of the others above is a better answer today.

What the loop looks like: a tapped word, the translation, the level, an example, and a button that explains the grammar if the translation was not the confusing part.

The five things that decide whether you keep using it

None of these appear on a feature list, and all of them determine whether the app is still installed in a month.

• Does it reopen on the exact paragraph? Phone reading is reading in fragments. A tool that loses your place charges you a re-entry tax every session, and that tax is what actually kills the habit — not lack of motivation.
• How many taps from “what’s that?” to “saved”? One is good, two is fine, four means you will start skipping words. And once you skip words, reading quietly stops teaching you much.
• Does the lookup interrupt or interject? Some tools navigate you to a definition screen. By the time you are back you have lost the sentence, and losing the sentence costs more than the word was worth.
• Is there something to read on day one? An empty import box asks you to solve “find level-appropriate material in a language you cannot read” before you get any value at all. Most people never come back from that errand.
• Does it know what you already know? If your saved words are marked in the text your eye goes to what is new. If not, you re-read the same words forever and feel like you are not improving.

A five-minute test before you commit a library

Nearly every tool passes step one. The ones that pass steps two and three are the ones you will still have at Christmas.

The setup I would actually recommend

If you want a concrete answer rather than a survey, here is what I would tell a friend at B1 who reads on their phone and has twenty minutes a day.

One app for reading and collecting, whichever of the above fits your language and platform. One source of material that does not require a decision every evening — a book you are part way through, plus a news site for the days you cannot face the book. And a review habit attached to something you already do daily, which for me is the first coffee and for most people should be whatever their equivalent is.

That is three decisions, made once. The failure mode I see most often is not choosing the wrong app; it is making those three decisions again every evening until the whole thing becomes tiring and stops.

Questions people ask about this

Details about other tools were checked against their own sites in July 2026. If something has gone stale, let me know.