CellInfo: 5G Signal & Maps

theBFGuk

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About this app

CellInfo – Ultimate Signal Analysis & Coverage Tool 📡

CellInfo is the essential diagnostic tool strictly for network professionals and RF enthusiasts. We replace standard coverage bars with raw, engineering-grade measurements of signal strength, network type, and connection quality.

I. Real-Time Diagnostics 📊 Instant access to raw metrics across 5G NR (SA/NSA), LTE-A, WCDMA, GSM, and CDMA. The dashboard exposes the core values used by industry professionals:

RSRP – True reference signal received power (dBm)
RSRQ & RSSNR – Quality and noise ratios
Full Cell Identity – MCC, MNC, TAC, Cell ID, eNB/gNB & PCI
Dual-SIM Support – Monitor two diverse networks simultaneously
Band Info – Frequency bands (e.g., n78, B20) and ARFCN
II. Carrier Aggregation & Stats 📈 Understand exactly how your device interacts with the network:

Carrier Aggregation (CA): Detect combined frequencies (e.g., B3+B20) for higher speeds.
Expert Stats: Track % time spent on 5G vs 4G to verify coverage claims.
MOCN Detection: Identify Multi-Operator Core Networks (shared towers).
5G NR Details: Band usage distribution (n1, n28, n78).
III. Signal Mapping & Drive Testing 🗺️ Your personal mobile drive-test unit:

Live Heatmap: Real-time logging creates a dynamic map of your route.
Visual Quality: Pins are auto-coloured by signal strength (Green/Excellent to Red/Poor).
Granular Data: Tap pins to view the exact Cell ID, RSRP, and coordinates captured.
History Comparison: Load CSV files to compare coverage against previous drives.
IV. Professional Diagnostics & Export 🔬 A full suite of comprehensive testing tools:

Connectivity Suite: Integrated Speed, Ping, DNS, and Port Scanner tests.
Network Score: Automated quality scoring based on jitter and packet loss.
Failover View: Monitor WiFi and Cellular status side-by-side.
Data Export: Export logs to CSV and CLF 3.0 for desktop analysis.
Community: Direct upload support for OpenCellID and BeaconDB.
V. Engineering Extras & Advanced Logic 🧠 Exclusive features for deep analysis and battery efficiency:

5G Slicing & URLLC: Detect Android 12+ network slicing and Ultra-Reliable Low-Latency status.
Total Aggregated Bandwidth: View the sum of all active carriers (e.g., "100 MHz Total").
Audio Monitor: Hands-free beeps for cell handovers, ideal for safe driving.
OLED Dark Mode: True black interface to save battery during long tests.
Privacy-Centric: "Fused Location" technology minimizes battery drain and keeps data on your device.
Professional 5G NR Analyzers CellInfo sits at the cutting edge of 5G monitoring (Android 10+):

CSI-RSRP/SINR: Channel State Information measurements capture true beamformed signal quality, offering higher fidelity than standard SS-RSRP.
CQI Reports: Per-subband Channel Quality Indicators (0-15 scale) show how the network grades your connection across frequencies.
Modulation Tables: Real-time decoding of the Modulation Scheme (MCS) to verify 256QAM or 1024QAM performance.
Timing Advance: Microsecond-level timing measurements to calculate precise distance to the serving tower (Android 14+).
CellInfo is constantly updated to support the latest Android APIs and 3GPP standards.

Download CellInfo now and map your real signal experience with unmatched accuracy!

Ratings and reviews

I use all of the network testing apps and this one is the absolute best without having root permission. They are constantly updating and adding features. If you want to take a peek under the hood for cellular networks this is a must! Thanks to the Devs!

Absolutely FANTASTIC app for discovering the truth about your mobile network signal strength and alternative mobile network operators. The most comprehensive app ever on this subject. NOTE: I was going to dock 1 star, because I couldn't find the Exit button (not aware that the top bar scroll sideways), so please highlight that the top bar scrolls to offer more than just the 4 displayed features ☺️

Simple to use, no major issues. After lots of feedback, this is a fantastic app for mobile enthusiasts. Whether you want to see where 5G SA is available or just see all of the stats from your phone in an easy to understand format.

What’s new

✨ NEW: 5G SA Mast/Tower mapping!
🌍 NEW: Now supports 48 languages! Every screen translated.
📡 NEW: User Defined Mast Names for eNB/gNB.
📊 NEW: Mast Names on Dash View now auto-fit for readability.
🚀 NEW: Interactive Graph! Pause & inspect Cell IDs.
📶 IMPROVED: Consistent wording & better stability (ANR fixes).
📸 NEW: Attach 3 screenshots in feedback!
✅ FIXED: UK 700MHz correctly shows as B28 (n28).
⚙️ UPDATED: Google libs & 3D UI.