Sensor Logger vs Uppi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor Logger
This app collects and displays data from various device sensors, including motion, GPS, and audio. It offers background recording, interactive plots, and multiple export formats. Advanced features allow for data streaming, systematic data collection from other users, and creating shareable data-driven dashboards.
- One-tap logging
- Background recording
- Interactive plot visualization
- Data streaming (HTTP/MQTT)
- CSV, JSON, Excel, KML exports
- Create and share data dashboards
- Systematic data collection studies
Read full descriptionHide full description
Sensor Logger collects, records and displays data from a range of sensors on iPhone, Apple Watch, iPad and AirPods — including accelerometer, gyroscope, GPS, audio, camera and Bluetooth devices. You can log device properties such as screen brightness, battery and network state. Select and preview desired sensors in a few taps. A single tap initiates the recording function, which works even when the app is in the background. View and manage recordings within the app via interactive plots. The app supports many export formats, including Zipped CSV, JSON, Excel, KML and more. For advanced use cases, stream data via HTTP or MQTT, resample measurements from multiple sensors, create Studies to collect data from other users systematically and write custom automation rules based on sensor, time and location. Once you have collected your data, you can create Stories — data-driven dashboard with your recordings, hosted online for effortless sharing. Sensor Logger is designed for researchers, educators, and anyone interested in collecting or monitoring sensors on their smartphone. It serves as the ultimate toolbox for exploring various fields, including physics, science, technology, engineering, and mathematics (STEM). - One-tap logging - Background recording - Recordings on interactive plots - Stream data via HTTP & MQTT - Intelligent, custom rule engine - Zipped CSV, JSON, Excel, KML & SQLite exports - Resample and aggregate measurements - Enable & disable specific sensors - Scan and log nearby Bluetooth devices - Add timestamp-synchronised annotations during recording - Adjust sampling frequency for sensor groups - Custom recording workflow - Raw and calibrated measurements available - Live plots and readings for sensors - Organise, sort and filter recordings - Control & track recording session from Watch - Bulk export & delete recordings - Resources to help you analyse your data - Data stays on-device and private - Create and share dashboard-style, data-driven Stories using your recordings, hosted online. Studies & Sensor Logger Cloud Create Studies to collect data from other Sensor Logger users efficiently. When activated, Studies use the investigator's specified sensor configuration for consistent data collection. Participants can upload their recordings to a secure cloud and join, pause, or switch Studies anytime. Studies include clear data usage descriptions, privacy statements, and contact details to ensure privacy compliance. Customize Study size, duration, sensor configuration, and export formats. Optional Paid Features (Plus, Pro & Ultimate) - No limitations on the number of stored recordings - Additional export formats - Combined CSV export - Customise recording workflow - Advanced sensor configurations - Custom naming templates - Theme and icon customizations - Unlimited Bluetooth beacons and no limit on the minimum RSSI - Create larger Studies with more participants - More allocated storage on Sensor Logger Cloud - Email support - Advanced study customization Supported Measurements - Device Acceleration (Accelerometer; Raw & Calibrated) - Gravity Vector (Accelerometer) - Device Rotation Rate (Gyro) - Device Orientation (Gyro Raw & Calibrated) - Magnetic Field (Magnetometer Raw & Calibrated) - Compass - Barometric Altitude (Barometer) - GPS Coordinate, Altitude, Speed & Heading - Audio (Microphone) - Loudness (Microphone) - Images (Front/Back) - Video (Front/Back) - Depth - Pedometer - Activity - Heart Rate (Watch) - Wrist Motion (Watch) - Location & Barometer (Watch) - Annotations (Timestamp and text) - Device battery level and state - Device screen brightness level - Nearby Bluetooth beacons (advertised data) - Headphone Motion (AirPods) - Network Heart rate logging requires integration with the Health app on the watch. Permission to access the heart rate from HealthKit on the watch is needed for the app to log the measurements. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Uppi
Read full descriptionHide full description
Stay on top of your websites, APIs, and services with Uppi, your trusted uptime monitoring tool. Get instant alerts for downtime and in-depth performance insights at your fingertips. Key Features: • Real-time monitoring for websites and TCP services • Instant push notifications for downtime alerts • Comprehensive uptime history and performance analytics • Response time tracking and customizable check intervals • Multiple notification channels and status page integration Why Choose Uppi? • Clean, intuitive interface • Reliable and fast monitoring • Secure, GDPR-compliant infrastructure • No ads, no in-app purchases • Frequent updates with new features Mobile Highlights: • Real-time status dashboard • Instant downtime alerts with push notifications • Track anomalies and performance trends • View detailed uptime history • Secure authentication Privacy & Security: • End-to-end encryption • Hosted on EU-based servers • GDPR-compliant with no third-party tracking • Regular security updates Perfect For: • Web developers & system administrators • Business owners & IT professionals • Anyone relying on online services Stay in control with Uppi – monitoring made simple.
Screenshots
Verdict
The clearest difference is in-app purchases: Uppi at none against Sensor Logger's 6. Sensor Logger's advantage is ads (none vs shown). On price, 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. Sensor Logger sells 6 in-app purchases, starting at $4.99 per month. Uppi asks for nothing beyond the download.
| Parameter | Sensor Logger | Uppi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (113 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 113 — better | — |
| Update frequency | Weekly | — |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 81 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Logger Labs LTD | Webmethod |
In-app purchases
Sensor Logger
- Plus Monthly$4.991 Month
- Pro Monthly$9.991 Month
- Ultimate Monthly$24.991 Month
Show 3 moreShow fewer
- Plus Yearly$49.991 Year
- Pro Yearly$99.991 Year
- Ultimate Yearly$249.991 Year
Uppi
No in-app purchases









