Comparison

SentenceDeck vs Qingdu AI

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

Head to head
About

SentenceDeck

Features
Read full description

Practice the conversations you will actually have. Pick a scene โ€” airport check-in, ordering coffee, a job interview โ€” and SentenceDeck uses AI to write a short dialogue for your level. You say your lines; your partner's lines are played for you. It is shadowing, made real: hear each line, say it, then hear yourself back. No grades, no corrections, no leaderboards โ€” just a calm, repeatable way to rehearse real situations out loud, in a hand-drawn sketchbook. HOW A SCENE WORKS 1. Choose from 30 everyday scenes in five categories: Travel, Daily Life, Work, Social and Emergencies 2. Pick your level (A2, B1 or B2) and a voice for each side of the dialogue 3. Practice line by line: listen to the reference, speak โ€” recording stops when you stop speaking โ€” then play yourself back. Play your own lines, swap to the other role, or practice both sides 4. Finish with a short recap: lines practiced, time spent and the lines you recorded again Line-by-line translations in your interface language are one tap away. A/B compare, sentence lock and playback speed (0.75ร— to 1.5ร—) are all there while you practice. A STAMP FOR EVERY SCENE Finish a scene and it is stamped into your passport, next to today's lines, your day streak and your total. My Scenes keeps every dialogue you have practiced, with all its versions, ready to search and practice again. DESCRIBE YOUR OWN SCENE Type a situation in one sentence โ€” "Calling my landlord because the water heater is broken" โ€” and get a dialogue written for it. Your description is sent to an AI service to write the dialogue, and the app asks for your permission before the first time. Everyday situations only; please leave out names and contact details. Any AI-written dialogue can be reported from the practice screen or the recap. READY OFFLINE 21 built-in English scenes (B1) come with audio, are free to practice and work without a connection, so you can start talking the moment you open the app. TWO WAYS TO WRITE A DIALOGUE โ€ข Standard: free, with a number of free dialogues every day โ€ข Detailed: richer context and more natural lines. Uses characters from your balance; the cost is shown before you start, and nothing is charged if writing fails TWO KINDS OF VOICE System voice: built into iOS. Free, offline, unlimited. Premium voice: natural, lifelike voices that speak each line with the mood of the scene. Premium audio is generated sentence by sentence as you practice and paid for in characters. The same sentence is cached for replay with the same voice settings; changing the voice may generate it again and use characters again. READ ALONG WITH YOUR OWN TEXT Paste an article, a script or presentation notes โ€” or import a text file โ€” and practice it sentence by sentence. Backup & Restore keeps the audio you generated. LANGUAGES Practice English, Chinese (Simplified and Traditional), Japanese, Korean, Spanish, French, Italian or German. The app itself speaks 10 interface languages, on iPhone and iPad, in light or dark mode. CHARACTER PACKS โ€ข 6,000 characters โ€ข 30,000 characters โ€ข 72,000 characters Characters never expire and are used for premium voice and Detailed dialogues. The App Store shows the local price for your region. Whether you are getting ready for a trip, a job interview, IELTS or TOEFL, or simply want to sound natural in everyday conversations, SentenceDeck gives you a focused speaking routine for the situations that matter to you. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.kuroneko-cmd.dev/privacy/sentencedeck/

About

Qingdu AI

This app uses your camera to instantly recognize, read aloud, and translate Chinese characters from any source. It's designed for learners to improve their reading comprehension and pronunciation with AI-powered OCR and natural text-to-speech.

Highlights
  • AI-powered OCR for accurate text recognition
  • Natural native pronunciation for spoken text
  • Instant translation of recognized characters
  • Selective scanning with adjustable crop area
  • Flexible playback with speed control
  • Word highlighting for easy following
Features
Read full description

Qingdu is an AI Chinese reader that turns your camera into a fast OCR, pronunciation, and translation assistant. Take a photo of any Chinese characters โ€” textbooks, signs, menus, or notes โ€” and Qingdu instantly recognizes the text with high accuracy, reads it aloud in natural native pronunciation, and provides a translation. Built especially for learners who want to read along and improve as they go. KEY FEATURES - Selective Scanning โ€” Move and resize the camera crop area to recognize only the text you need; your editing mode and last area are remembered - Flexible Playback โ€” Drag the progress bar to a new position, jump between punctuation-based sections, or pause after each section - Fine Speed Control โ€” Listen at 0.1x to 2.0x, adjustable in 0.1x steps - Word Highlighting โ€” Follow spoken words with background highlighting in the source and matching converted text - AI-Powered OCR โ€” Advanced AI recognition delivers exceptionally high accuracy - Pinyin Noise Removal โ€” Automatically filters out pinyin and annotations, extracting only clean Chinese characters - Native Pronunciation โ€” Listen to clear, natural text-to-speech for every character - Instant Translation โ€” Understand what you're reading right away - Edit & Refine โ€” Adjust recognized text for perfect accuracy - Simple & Fast โ€” No login, no account, no clutter. Just open and read WHY QINGDU? Many textbooks print pinyin above or beside the characters, which confuses ordinary OCR tools. Qingdu uses AI to intelligently remove this noise and extract only the Chinese characters you need โ€” giving you clean, accurate results every time. WHO IS IT FOR? Qingdu is designed for learners of Chinese who study with physical textbooks and want a faster, more accurate way to look up, hear, and understand characters. Whether you're a beginner building vocabulary or an intermediate learner reading native materials, Qingdu helps you read with confidence. Start reading Chinese today โ€” just snap a photo and tap. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SentenceDeck4 screens
Qingdu AI4 screens

Verdict

The call

The clearest difference is update cadence: Qingdu AI at every 10 days against SentenceDeck's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SentenceDeck sells 3 one-off in-app purchases and Qingdu AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SentenceDeck ships an update every 6 weeks, Qingdu AI every 10 days. Both last shipped on October 31, 2026.

Scorecard1 real difference ยท 7 level
SentenceDeck versus Qingdu AI: the parameters behind the verdict, then further details
ParameterSentenceDeckQingdu AI
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 6 weeksEvery 10 days โ€” better
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size36 MB53 MB
Age rating4+4+
Developerๅฅ‡ๆฟ‚ ไปปJungsoo Nam

In-app purchases

3 purchases

SentenceDeck

One-time3
  • Credits 100$0.99
  • Credits 500$3.99
  • Credits 1200$7.99
2 purchases

Qingdu AI

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium$34.991 Year

Questions

Is SentenceDeck free?
SentenceDeck is free to download, with in-app purchases available.
Is Qingdu AI free?
Qingdu AI is free to download, with in-app purchases available.
Do SentenceDeck or Qingdu AI have ads?
Neither SentenceDeck nor Qingdu AI shows ads.
Which is updated more often, SentenceDeck or Qingdu AI?
SentenceDeck ships an update every 6 weeks, and Qingdu AI every 10 days. Most recently, SentenceDeck was updated on October 31, 2026 and Qingdu AI on October 31, 2026.

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