Comparison

SentenceDeck vs ShadowingExplore

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

ShadowingExplore

Features
Read full description

Understand native English. Then speak it. ShadowingExplore turns shadowing โ€” repeating a native speaker right after you hear them โ€” into practice anyone can keep up with. Built for the moments when: "They talk too fast for my mouth to keep up." "I just mumble along and call it done." "I can't tell how my pronunciation differs from theirs." THREE STEPS, THAT'S IT 1. Listen โ€” follow along with karaoke-style subtitles that light up as each word is spoken 2. Shadow โ€” with earphones in, speak right behind the speaker while the app records you 3. Compare โ€” hear the speaker in one ear and yourself in the other, at the same time SEE HOW YOU SOUND Your pitch is drawn on the same graph as the speaker's, so you can spot exactly where your intonation drifts. Timing between your recording and the original is aligned automatically for an accurate comparison. After every take you get a sync score against the original. DRILL ONE SENTENCE AT A TIME Audio is split into sentences automatically. Repeat just the lines you can't catch, or select any words to save them as your own clip. START SLOW Slow playback from 0.6x to 1.0x, jump back or forward 0.5 seconds, and loop until you get it. Turn subtitles off when you're ready to train your ears alone. BUILT TO STICK A daily goal ring, streaks and your week at a glance on the home screen keep you coming back. AUDIO WORTH REPEATING Cruise announcements, a guide to Japanese izakaya, classic fairy tales and more โ€” vivid English audio sorted by level in the Track Store, with more on the way. ALSO - Background playback and lock-screen controls - A hands-on guide for your first session, in 10 languages Shadowing works best with earphones. Tell us what you'd like to practice next in a review!

Screenshots

SentenceDeck4 screens
ShadowingExplore4 screens

Verdict

The call

The clearest difference is in-app purchases: ShadowingExplore at none against SentenceDeck's 3. ShadowingExplore also leads on update cadence (every 8 days vs every 6 weeks). SentenceDeck's advantage is ads (none vs shown). On price, device support and iOS requirement 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. ShadowingExplore asks for nothing beyond the download.

UpkeepUpdate frequency

SentenceDeck ships an update every 6 weeks, ShadowingExplore every 8 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences ยท 3 level
SentenceDeck versus ShadowingExplore: the parameters behind the verdict, then further details
ParameterSentenceDeckShadowingExplore
PriceFreeFree
Update frequencyEvery 6 weeksEvery 8 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 โ€” better18.6
Further details โ€” not scored
Size36 MB23 MB
Age rating4+4+
Developerๅฅ‡ๆฟ‚ ไปปryo nakai

In-app purchases

3 purchases

SentenceDeck

One-time3
  • Credits 100$0.99
  • Credits 500$3.99
  • Credits 1200$7.99
None

ShadowingExplore

No in-app purchases

Questions

Is SentenceDeck free?
SentenceDeck is free to download, with in-app purchases available.
Is ShadowingExplore free?
ShadowingExplore is free to download, with no in-app purchases.
Do SentenceDeck or ShadowingExplore have ads?
ShadowingExplore shows ads; SentenceDeck does not.
Which is updated more often, SentenceDeck or ShadowingExplore?
SentenceDeck ships an update every 6 weeks, and ShadowingExplore every 8 days. Most recently, SentenceDeck was updated on October 31, 2026 and ShadowingExplore on November 5, 2026.

Other comparisons