Comparison

Langlogy vs SentenceDeck

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

Head to head
About

Langlogy

Features
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Language learning is more enjoyable and more straightforward than ever. Langlogy has, Immersive Learning Path: Travel through various real-life scenarios with our interactive lessons. Instant Translations: Translate text and speech between multiple languages effortlessly and accurately. Personalized Flashcards: Create custom decks and flashcards to enhance your learning. AI-Powered Conversations: Chat with an AI tutor or AI chat buddy to practice and learn your target language. The companion can play various roles… Subscription Information: β€’ Title: Dual Explorer / Polyglot Passport β€’ Length: Monthly or Yearly (auto-renewing) β€’ Price: $9.99/month or $99.99/year (Dual Explorer), $19.99/month or $199.99/year (Polyglot Passport) β€’ Payment will be charged to your Apple ID account at the confirmation of purchase. β€’ Subscription automatically renews unless canceled at least 24 hours before the end of the current period. β€’ You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://www.langlogy.com/privacy-policy/ Terms of Use: https://www.langlogy.com/terms-and-conditions/

About

SentenceDeck

Features
Read full description

Shadowing, made simple. Paste any text β€” a news story, a podcast transcript, a page from your textbook β€” and SentenceDeck turns it into a sentence-by-sentence speaking drill: hear it, say it, hear yourself back. No scripted lessons, no grades. Just the method interpreters and polyglots swear by, applied to the exact text you want to master. HOW A SESSION WORKS For every sentence, SentenceDeck: 1. Plays a clear reference voice 2. Records you automatically β€” recording stops when you stop speaking 3. Plays your voice back so you can hear the difference Switch on A/B compare to hear reference and recording back to back, lock a tricky sentence to loop it, and change playback speed (0.75Γ— to 1.5Γ—) without regenerating audio. WHAT'S NEW IN 1.5 β€’ A redesigned home screen: pick up where you left off, and see today's sentences, your streak and your lifetime total at a glance β€’ A richer premium voice with selectable voice styles β€’ Free Sample articles so you can try the flow before adding your own text β€’ Backup & Export: premium audio is included in your device backup when backups are enabled and sufficient backup space is available. Only a SentenceDeck ZIP can import compatible articles and audio on a new device; practice progress is not restored. Exported merged audio is for listening only and cannot be imported β€’ Clearer pricing: each sentence is generated as you practice. The same sentence is charged once and cached for replay with the same premium voice and style settings; changing the premium voice or style may generate it again and use characters again TWO VOICES β€” ONE IS FREE System voice: built into iOS. Free, offline, unlimited. Premium voice: natural, expressive male and female voices with several speaking styles. Pay only for the sentences you practice; nothing expires. 9 VOICE LANGUAGES English, Chinese (Simplified and Traditional), Japanese, Korean, Spanish, French, Italian, German. The language of your text is detected automatically, or set it yourself. MADE FOR REAL STUDY β€’ Works with any text: articles, dialogues, exam material, notes for a presentation β€’ Each sentence is cached for the selected premium voice and style β€” generate it once, practice as often as you like β€’ Light, dark and system themes; 10 interface languages β€’ iPhone and iPad PREMIUM VOICE PRICING β€’ 6,000 characters (about 100 sentences) β€’ 30,000 characters (about 500 sentences) β€’ 72,000 characters (about 1,200 sentences) Characters never expire. The App Store shows the local price for your region. Whether you are preparing for IELTS, TOEFL, JLPT or TOPIK, polishing a presentation, or just want to sound more natural, SentenceDeck gives you a focused, repeatable speaking routine from any text you choose. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.kuroneko-cmd.dev/privacy/sentencedeck/

Screenshots

Langlogy4 screens
SentenceDeck4 screens

Verdict

The call

The clearest difference is ads: SentenceDeck at none against Langlogy's shown. Langlogy's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Langlogy sells 4 in-app purchases, starting at $9.99 per month and SentenceDeck sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Langlogy ships an update every 8 months, SentenceDeck every 6 months. The most recent releases landed on September 9, 2026 and August 30, 2026 respectively.

Scorecard2 real differences Β· 4 level
Langlogy versus SentenceDeck: the parameters behind the verdict, then further details
ParameterLanglogySentenceDeck
PriceFreeFree
Update frequencyEvery 8 monthsEvery 6 months β€” better
AdsYesNo β€” better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.1 β€” better17.0
Further details β€” not scored
Size46 MB10 MB
Age rating12+4+
DeveloperAntlogy LLCε₯‡ζΏ‚ δ»»

In-app purchases

4 purchases

Langlogy

Subscriptions4
  • Dual Explorer Monthly$9.991 Month
  • Polyglot Passport Monthly$19.991 Month
  • Dual Explorer Yearly$99.991 Year
Show 1 more
  • Polyglot Passport Yearly$199.991 Year
3 purchases

SentenceDeck

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

Questions

Is Langlogy free?
Langlogy is free to download, with in-app purchases available.
Is SentenceDeck free?
SentenceDeck is free to download, with in-app purchases available.
Do Langlogy or SentenceDeck have ads?
Langlogy shows ads; SentenceDeck does not.
Which is updated more often, Langlogy or SentenceDeck?
Langlogy ships an update every 8 months, and SentenceDeck every 6 months. Most recently, Langlogy was updated on September 9, 2026 and SentenceDeck on August 30, 2026.

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