Comparison

IPA Reader vs Youmi Lens

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IPA Reader

Features
Read full description

IPA Reader adds IPA phonetic transcription to English PDFs and web pages. Tap any word to hear how it sounds and see what it means, without leaving the page. Reading in English gets slow when you are unsure how a word sounds, and stopping to look it up breaks your concentration. IPA Reader keeps the phonetics, the meaning and the audio in the same place as the text. READ - BROWSER, PDF AND READER MODE - Built-in browser with Bing or Google search, plus a PDF reader, both with automatic IPA annotation - Every line of a PDF is annotated, including tightly spaced body text - Open PDFs from Files, Mail or any other app through Share and "Open in" - In-document search, outline navigation, go to page, and PDF display themes - Reader mode strips the clutter, with adjustable fonts, spacing and themes - American and British IPA, switchable with one tap - A common-word filter hides annotation on words you already know, in browsing, reader mode and PDF UNDERSTAND - WORD LOOKUP AND TRANSLATION - Tap a word once for its pronunciation and its dictionary definition together - Definitions in Chinese, Japanese, Korean, Vietnamese and English - Translate a whole article on the web, or the current page of a PDF - Long-press a sentence to play it, copy it, collect it or attach a note LISTEN - TEXT TO SPEECH - Sentence-by-sentence playback with the current sentence highlighted - Speed from 0.4x to 2.0x, for every level - Voices filtered to your accent preference, with previews before you choose - Auto mode selects the highest quality voice installed on the device PRACTICE - SHADOWING AND REVIEW - Record yourself reading a sentence and get a pronunciation score - Flashcards for saved vocabulary and saved sentences, in separate modes - Spaced repetition schedules each item for the day you are about to forget it TRACK - GOALS AND STREAKS - Daily goals, learning streaks and reading time - XP, levels, quests and achievements - Progress insights across everything you read and practise ORGANIZE - COLLECTION, NOTES AND BOOKMARKS - Save words and sentences, and attach colour-coded notes - Bookmarks, browsing history and an archive organised by source PRIVACY AND LANGUAGES - Everything is stored on your device. No account and no registration. - The interface is available in 51 languages FREE AND PRO Free every day: 2 article translations, 15 word lookups and 5 saved items. One tap on a word costs at most one lookup, replaying audio from the definition panel costs nothing, and sentence playback is always free. Pro removes the daily limits. Useful for academic papers, textbooks, news, novels and exam preparation - TOEFL, IELTS, Cambridge and GRE. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Youmi Lens

This AI-powered tool assists students by recording lectures, providing live captions, and generating transcripts and summaries. It helps organize study materials by course, annotate PDFs, and manage handwritten notes for a streamlined learning process.

Highlights
  • Lecture recording
  • Live captions
  • AI transcripts and summaries
  • Course-based organization
  • PDF annotation
  • Handwritten notes
Features
Read full description

Youmi Lens is an AI lecture companion designed to help students capture, understand, and review lectures. Record lectures, follow live captions, import course materials, annotate PDFs, generate transcripts and summaries, and organize everything by course. Youmi Lens helps students build a clearer study workflow before, during, and after class. Key features: • Lecture recording • Live captions • AI transcripts and summaries • Course-based lecture organization • Course materials and PDF annotation • Handwritten lecture notes • Local guest recording without account creation • Account-based saving, syncing, transcripts, and summaries • Account deletion available in Settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

IPA Reader4 screens
Youmi Lens4 screens

Verdict

The call

The clearest difference is update cadence: Youmi Lens at every 4 days against IPA Reader's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IPA Reader sells 2 in-app purchases, starting at $1.99 per month and Youmi Lens sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

IPA Reader ships an update every 2 weeks, Youmi Lens every 4 days. The most recent releases landed on September 12, 2026 and September 23, 2026 respectively.

Scorecard1 real difference · 9 level
IPA Reader versus Youmi Lens: the parameters behind the verdict, then further details
ParameterIPA ReaderYoumi Lens
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size116 MB49 MB
Age rating17+4+
Developer粤珠 袁宸赫 张

In-app purchases

2 purchases

IPA Reader

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Annual$12.991 Year
1 purchases

Youmi Lens

One-time1
  • Student Basic – 30 Days$4.99

Questions

Is IPA Reader free?
IPA Reader is free to download, with in-app purchases available.
Is Youmi Lens free?
Youmi Lens is free to download, with in-app purchases available.
Do IPA Reader or Youmi Lens have ads?
Neither IPA Reader nor Youmi Lens shows ads.
Which is updated more often, IPA Reader or Youmi Lens?
IPA Reader ships an update every 2 weeks, and Youmi Lens every 4 days. Most recently, IPA Reader was updated on September 12, 2026 and Youmi Lens on September 23, 2026.

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