Sensor vs LocalTranslate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor
Transform your iPhone and Apple Watch into live motion sensor tools. Stream data like accelerometer and gyroscope readings in real-time with smooth graphs and sampling rate information. Record and export captured data as CSV files for analysis and research.
- iPhone and Apple Watch sensor streaming
- Accelerometer and gyroscope data
- Gravity and magnetic-field measurements
- Pitch, roll, yaw, quaternions, rotation matrices
- Live sampling-rate display
- Local recording with pause/resume
- CSV file export and sharing
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SensorStream turns your iPhone and Apple Watch into real-time motion sensor tools. Select a device, choose the sensor streams you need, and view smooth live graphs with sampling- rate information. Record sessions locally and export the captured data as CSV files for analysis, research, testing, or development. Features include: • iPhone and Apple Watch sensor streaming • Accelerometer and gyroscope data • Gravity and magnetic-field measurements • Pitch, roll, yaw, quaternions, and rotation matrices • Live sampling-rate display • Selectable sensor channels • Smooth, full-width graphs • Local recording with pause and resume controls • CSV file sharing and deletion • Light and dark appearance support Available streams depend on the selected device and its hardware capabilities. SensorStream excludes HealthKit-dependent biometric data.
LocalTranslate
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LocalTranslate translates using only an AI model that runs on your device (Qwen3.5, MLX). No internet connection needed — the text, voice, and photos you translate are never sent anywhere. Typed-text translation is free forever. WHEN IT HELPS - Traveling abroad with no signal, in airplane mode, or on unreliable hotel Wi-Fi - Following a meeting or talk without the translation cutting off mid-speech - Translating confidential documents and emails without sending them to the cloud FEATURES - Translate typed text, speech, and camera or photo text - Live translation: keeps listening until you tap stop, translating each sentence as you speak - Cleans up fillers ("um", "uh") in speech before translating - Read translations aloud, copy them, or stop a translation midway - Back-translation to check quality at a glance, plus translation history TRANSLATION LANGUAGES Japanese, English, Chinese (Simplified), French, German, Spanish, Italian PRICING & CANCELLATION - Typed-text translation is free with no usage limits. - Voice input, live translation, camera translation, and read-aloud are part of a monthly Premium subscription with a 3-day free trial for new subscribers (price shown in the App Store and on the purchase screen). - Cancel at least 24 hours before the trial ends and you won't be charged. Cancel anytime from the app's Settings screen or in iPhone Settings > your name > Subscriptions. PRIVACY All translation happens on your device. No ads, no data collection, no third-party SDKs. Note: a one-time download of the AI model (about 1.8 GB) is required on first launch. Wi-Fi is recommended. The app's interface is available in 10 languages: Japanese, English, Chinese (Simplified/Traditional), Korean, Spanish, French, German, Portuguese, and Arabic. Contact: https://explorerslab-inc.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://explorerslab-inc.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Sensor at none against LocalTranslate's 1. On price, ads, device support and iOS requirement 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
Both are free to download. LocalTranslate sells 1 in-app purchase, starting at $2.99 per month. Sensor asks for nothing beyond the download.
| Parameter | Sensor | LocalTranslate |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 9 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Yerim Lab LLC | Sami Kuribara |
In-app purchases
Sensor
No in-app purchases
LocalTranslate
- Premium (Monthly)3 Days trial$2.991 Month









