Release status: SentenceDeck 1.5 is being prepared for App Store review. The current App Store download may still show an earlier version.
Turn your own text into shadowing practice
Paste an article, dialogue, transcript, textbook passage, or presentation script. SentenceDeck splits it into sentences and gives each one a simple practice loop: hear a reference voice, say the sentence, and play your recording back while the phrase is still fresh.
There is no fixed course and no pronunciation score. You choose the material and decide what sounds better on the next attempt.
Listen, speak, and compare
Practice one sentence at a time instead of generating an entire article before you can begin. Use A/B compare to hear the reference and your recording back to back, lock a difficult sentence for repetition, or change playback speed from 0.75× to 1.5× without regenerating the reference audio.
The redesigned home screen keeps your articles, free Samples, today’s practice count, streak, and lifetime total in one place. You can return to the last session without rebuilding your setup.
Two voice options
System voice
Uses Apple’s on-device speech engine. It is free, works offline, and does not use characters. Available voices depend on what is installed on your device.
Premium voice
Uses Google Cloud Text-to-Speech through a Cloudflare gateway and offers more natural voices with selectable speaking styles. Premium audio is generated only for the sentences you reach.
Characters are charged once when a sentence is generated under the current voice and style settings. The cached audio can then be replayed without another charge. Changing the voice or style may require a new generation and use characters again.
Characters, not a subscription
Premium voice uses prepaid character packs:
- 6,000 characters
- 30,000 characters
- 72,000 characters
Characters do not expire. Prices are displayed by the App Store and may vary by region. System voice remains free and unlimited.
Keep premium audio safe
Generated audio stays on your device. Premium audio is eligible for your device backup when iCloud or computer backup is enabled and has enough space. It returns as part of a full device restore; deleting and reinstalling the app alone does not restore that audio.
For a copy you control, Backup & Export can export one article or the full library as a SentenceDeck ZIP and import a compatible package later. Exporting and importing do not generate audio or consume characters. A ZIP restores compatible articles and audio, not practice progress. You can also export a merged audio file for listening, but merged files are not importable backups.
Privacy by design
- No SentenceDeck account or sign-up is required.
- Microphone recordings and practice progress stay on your device.
- System voice works without sending text to our cloud service.
- Premium voice sends the selected text and generation settings through Cloudflare to Google Cloud Text-to-Speech.
- No advertising SDKs and no cross-app tracking.
- Backup and export destinations are chosen through Apple system controls; SentenceDeck does not run its own cloud-sync service for your library or audio.
Read the full SentenceDeck Privacy Policy or visit Support for backup, import, voice, and purchase troubleshooting.