Detector. vs Flashcards & Widgets
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Detector.
This app uses your phone's sensors to scan for hidden signals, wireless activity, and environmental anomalies. It helps inspect spaces for suspicious devices and provides detailed reports for privacy and security analysis. Features include room mapping, risk assessment, and device diagnostics.
- Hidden signal scanning
- Device analysis
- Room mapping
- Risk assessment
- Detailed reporting
- Environmental anomaly detection
- Offline mode
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Detector – Hidden Signal Scanner & Device Analyzer See what your eyes cannot — using your phone. Detector is a privacy, security, and environmental analysis app that helps inspect hotel rooms, vacation rentals, offices, vehicles, and other spaces for unusual signals, wireless activity, suspicious devices, and environmental anomalies. Using your devices built-in sensors and wireless capabilities, Detector combines scanning tools, room mapping, risk analysis, reporting, and device diagnostics in one app. Full Scan Perform a comprehensive room inspection and create a detailed investigation report. Features include: • Room Mapping & Coverage Tracking • Spatial Findings & Risk Markers • Timeline-Based Event Tracking • Risk Summary Reports • Historical Scan Archive • Sensor-Specific Findings • Suspicious Activity Logging • Photo Evidence Capture • Notes & Investigation Records • PDF Export & Sharing Detection Tools Detector combines multiple technologies into a single workflow: • Infrared / Lens Detection • Ultrasound Analysis • Magnetic Field Detection • Light & Flicker Monitoring • Motion Detection • Pressure Monitoring • Bluetooth (BLE) Scanner • Wi-Fi Scanner • Ultra Wideband (UWB) Analysis • NFC Tag & Device Detection • Cellular Network Analysis • GPS Anomaly Monitoring Reports & Investigation Tools Review current and historical findings with detailed reporting features. • Session Reports • Historical Reports • Timeline View • Risk Classification • Detailed Finding Records • Full Scan Reports • Print, Copy & PDF Export Track scans over time and compare findings across multiple locations and sessions. Device Utilities • Battery Report • Device Health History • Performance Report • Internet Speed Test • Storage Cleaner Privacy-Focused Design • Privacy-First Approach • Local Scan History • Offline Mode Available • No Account Required • Minimal Data Collection Ideal For • Travelers • Hotel Guests • Vacation Rental Users • Journalists • Investigators • Security Professionals • Privacy-Conscious Individuals • Anyone Curious About Hidden Signals and Wireless Activity Additional Features • Support for 77+ Languages • Historical Scan Storage • Photo Documentation • Risk-Based Detection System • Room Coverage Tracking • PDF Export & Sharing • Offline Mode (Subscription) • Ad-Free Experience (Subscription) Detector helps you understand the signals, devices, and environmental activity around you, providing tools for inspection, analysis, documentation, and awareness. Note: Detector uses available device sensors and wireless technologies to analyze environmental conditions, identify compatible nearby devices and tags, and highlight unusual activity patterns. Results should be used as indicators and informational guidance rather than definitive proof of surveillance devices or security threats. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Flashcards & Widgets
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Create, study, and master any subject with a modern flashcard maker. Mnemo combines interactive widgets, versatile card types, and smart spaced repetition to help you retain knowledge effortlessly across iPhone, iPad, and Mac. Built for students and lifelong learners, Mnemo removes the clutter and subscription traps of traditional study apps. Organize custom decks, practice at your own pace, and strengthen your memory without accounts, tracking, or ads. LEARN FROM YOUR HOME SCREEN • Interactive widgets let you flip flashcards, answer multiple-choice questions, and rate your recall without opening the app. • Passive review rotates questions and answers automatically, turning short moments into productive study time. • Lock Screen & Mac desktop widgets keep essential facts and formulas close all day. • Clean, Apple-native design tailored for iPhone, iPad, and Mac. FOUR POWERFUL CARD TYPES • Classic flashcards for terms, definitions, and quick two-sided review. • Multiple-choice cards for targeted quiz and exam preparation. • Cloze cards for fill-in-the-blank prompts and precision recall. • Image Occlusion cards to hide and reveal labels on diagrams, anatomy charts, and maps. SCIENCE-BACKED MEMORY RETENTION • Modern FSRS spaced repetition schedules reviews right before you forget. • Active recall strengthens neural pathways for long-term retention. • Visual heatmaps and streaks track your daily focus and learning momentum. • Standard, reverse, and random study modes for flexible practice. RICH TEXT, FORMULAS & CODE • Format cards with bold, italics, lists, and LaTeX math formulas. • Syntax highlighting for programming and technical subjects. • Audio text-to-speech with automatic language detection for language and vocabulary review. MADE FOR REAL EXAM PREPARATION • Ideal for college, high school, university, and professional certifications. • Proven for high-stakes exams: MCAT, USMLE, NCLEX, CPA, SAT, GRE, GMAT, and language fluency. • Seamless CSV and AI-prompt import: Paste structured card data in seconds. PRIVATE & OFFLINE-FIRST • All study data stays in your personal iCloud via CloudKit. • Full offline functionality — study anywhere without an internet connection. • No account required, no third-party servers, no data harvesting. MNEMO PRO • Explore all core study features with the starter experience. • Unlock unlimited decks and cards with a single one-time purchase. • No subscription required. Mnemo was developed by a psychologist for learners who want modern flashcards, powerful widgets, strong privacy, and a simpler path from first review to lasting knowledge.
Screenshots
Verdict
The clearest difference is ads: Flashcards & Widgets at none against Detector.'s shown. Detector.'s advantage is iOS requirement (15.0 vs 26.0). On price, update cadence, in-app purchases and device support 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. Detector. sells 2 in-app purchases, starting at $1.99 per month and Flashcards & Widgets sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Detector. ships an update weekly, Flashcards & Widgets every 5 days. The most recent releases landed on September 2, 2026 and September 6, 2026 respectively.
| Parameter | Detector. | Flashcards & Widgets |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Weekly | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 176 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | Olga Ivanova | Max Lottermoser |
In-app purchases
Detector.
- detector_by_oliva_subscription$1.991 Month
- detector_by_oliva_donation$1.99
Flashcards & Widgets
- Mnemo Pro$4.99





