Comparison

Sensor vs MLC Chat

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

Head to head
About

Sensor

Access and utilize all your device's sensors with this comprehensive tool. Explore GPS, gyroscope, acceleration, magnetometer, altimeter, and attitude data for various applications and research.

Highlights
  • Access GPS for precise location
  • Utilize gyroscope for orientation
  • Measure acceleration and movement
  • Detect magnetic fields with magnetometer
  • Access altimeter and pressure data
  • Monitor device attitude (roll, pitch, yaw)
Features
Read full description

Unlock the full potential of your iPhone and iPad with Sensor-App, the ultimate tool for accessing and utilizing all of your device's sensors. Whether you're an enthusiast, a developer, or simply curious about your device's capabilities, Sensor-App offers a comprehensive suite of tools at your fingertips. Explore a plethora of sensors including: - **GPS**: Navigate with precision and track your device’s exact location. - **Gyroscope**: Experience precise orientation and rotation insights for enhanced application performance. - **Acceleration Sensor**: Measure the speed and direction of movement, perfect for fitness and motion-based applications. - **Magnetometer**: Detect magnetic field strength and direction, useful for navigation and augmented reality. - **Altimeter/Pressure Sensor**: Access real-time altitude and pressure data, ideal for outdoor adventures. - **Attitude**: Understand device posture with detailed readings of roll, pitch, and yaw. Designed with both power users and beginners in mind, Sensor-App provides intuitive access to your device’s advanced hardware features. Take control of your sensor data and transform how you interact with the world around you. Whether for personal exploration, scientific research, or application development, Sensor-App is your gateway to a more insightful mobile experience.

About

MLC Chat

Engage in conversations with open language models directly on your iPad or iPhone. Once a model is downloaded, all interactions occur locally, ensuring privacy and offline functionality without internet access. This app is designed for non-commercial use, allowing you to run various open-source language models on your device.

Highlights
  • Local AI model chat
  • Offline functionality
  • No internet required
  • Privacy-focused
  • Open-source project integration
  • Downloadable language models
Features
Read full description

MLC Chat lets users chat with open language models locally on ipads and iphones. After a model is downloaded to the app, everything runs locally without server support, and it works without internet connections do not record any information. Because the models run locally, it only works for the devices with sufficient VRAM depending on the models being used. MLC Chat is part of open source project MLC LLM, with allows any language model to be deployed natively on a diverse set of hardware backends and native applications. MLC Chat is a runtime that runs different open model architectures on your phone. The app is intended for non-commercial purposes. It allows you to run open-language models downloaded from the internet. Each model can be subject to its respective licenses.

Screenshots

Sensor4 screens
MLC Chat2 screens

Verdict

The call

The clearest difference is ads: MLC Chat at none against Sensor's shown. MLC Chat also leads on rating (4.2 vs 4.0) and ratings volume (78 vs 4). On price, update cadence, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

MLC Chat holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: MLC Chat has 78 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 56% of Sensor's written reviews are positive against 68% of MLC Chat's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
Sensor versus MLC Chat: the parameters behind the verdict, then further details
ParameterSensorMLC Chat
PriceFreeFree
Rating4.0 (4 ratings)4.2 (78 ratings) — better
Positive reviews55.6% of reviews68.3% of reviews — better
Number of ratings478 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS27.017.0 — better
Further details — not scored
Size47 MB1.7 GB
Age rating4+17+
DeveloperVolker SchmittTianqi Chen

Customer experience

Sensor

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

MLC Chat

All ratings78 ratings
Positive83.3%
Neutral3.8%
Negative12.8%
Written reviews63 reviews
Positive68.3%
Neutral12.7%
Negative19.0%

Bugs and requests

Sensor

Not enough reviews yet to summarise bugs or requests.

MLC Chat

Reported bugs

17 issues
  • Phi model crashes on iOS 26.0.1 17 Pro Max
  • App crashes on iPad Pro 4th Gen, iPadOs 17.7
  • RedPajama model crashes app on initialization
  • Update is extremely slow
  • Download model button disabled in new version
Show 12 more
  • RedPajama model crashes, custom model download removed
  • App closes when hitting send on iPhone 13
  • Conversation resets when app is backgrounded
  • Vicuna and Mistral 7B models cause crashes
  • Some 7b q4f16/q4f32 models crash on iPhone 15 Pro
  • App crashes on iPhone 13 mini
  • Cannot load other models from URL
  • Crash on iPhone 12
  • Severe heating and frequency reduction on A15
  • Low VRAM failed initialization on 3GB LP DDR4X phone
  • Cannot run 4bit model on iPhone 15 with 8GB RAM
  • Loading models from HF MLC official Repo causes crashes

Requested features

14 requests
  • Ability to import custom models (from URL/Hugging Face)
  • Support for more specific models (DeepSeek, Phi-2, Gemma 2B/7B, MoE Mixtral 8x7B, LLaVA)
  • History of conversations
  • iOS shortcuts support
  • Ability to export entire responses
Show 9 more
  • Information on VRAM requirements per phone/model
  • Ability to change system message/create custom profiles
  • Ability to edit responses and system prompt
  • Add coffee support
  • Delete downloaded models
  • Change settings per model (repetition penalties, temperature)
  • How-to guide for importing/recompiling LLMs
  • Estimate model compatibility before download
  • Support for CN and ZH languages

In-app purchases

None

Sensor

No in-app purchases

None

MLC Chat

No in-app purchases

Questions

Is Sensor free?
Sensor is free to download, with no in-app purchases.
Is MLC Chat free?
MLC Chat is free to download, with no in-app purchases.
Which has better reviews, Sensor or MLC Chat?
MLC Chat is rated higher. Sensor averages 4.0 out of 5 from 4 ratings, while MLC Chat averages 4.2 from 78 ratings.
Do Sensor or MLC Chat have ads?
Sensor shows ads; MLC Chat does not.
Which is updated more often, Sensor or MLC Chat?
Sensor ships an update every 2 months, and MLC Chat every 2 months. Most recently, Sensor was updated on September 29, 2026 and MLC Chat on October 6, 2026.

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