Spectre vs Deckerr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectre
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Smart glasses are everywhere — and many can record video without you knowing. Spectre uses Bluetooth Low Energy to detect smart glasses around you in real time, so you're never caught off guard. No account. No tracking. No network. Your data never leaves your device. HOW IT WORKS Spectre passively listens for Bluetooth signals broadcast by smart glasses. When it detects a known device, it shows the brand, estimated distance, signal strength, and a threat level based on proximity. You get notified instantly — on iPhone, on Apple Watch, and on your Lock Screen. No pairing. No connection to the device. Pure detection. 19 BRANDS RECOGNIZED • Ray-Ban Meta · Oakley Meta · Snap Spectacles · Google Glass • XREAL · Xiaomi Glasses · Lenovo ThinkReality · TCL RayNeo · Even Realities · Brilliant Labs · Vuzix · OPPO Air Glass · Huawei Eyewear · Samsung Glasses • Amazon Echo Frames · Bose Frames · Fauna Audio · Solos AirGo · Razer Anzu Identification uses Bluetooth manufacturer IDs, service UUIDs, and name patterns — cross-referenced for accuracy. KEY FEATURES • Real-time dashboard with live signal strength, estimated distance, and threat level • Apple Watch companion app — wrist-tap alerts, start/stop scan controls • Radar Finder — walk to a device with Find My-style "warmer/colder" guidance • "Only alert for new devices" mode — silence familiar gear, catch strangers • Live Activity on the Lock Screen and Dynamic Island • Home Screen, Lock Screen, and StandBy widgets • Detection log with full history, search, and grouped timeline • Map view of where smart glasses were detected • Analytics with detection trends, brand breakdown, and peak hours • Customizable alerts: notifications, audible alarms, haptic feedback • Continuous haptic pulse that intensifies as a device gets closer • Quiet hours, Stealth mode, Face ID app lock • Device allowlist to ignore your own gear • CSV and JSON export • Siri Shortcuts: "Start scanning", "Are glasses nearby?" • Background scanning with Bluetooth state restoration • 6 languages: English, Dutch, French, German, Spanish, Catalan • Demo mode to try Spectre without nearby devices PRIVACY FIRST • No accounts, no sign-ups • No analytics, no telemetry, no tracking • Zero network requests — Spectre works entirely offline • Detection logs stored locally on-device using SwiftData • Optional location tagging stays on-device • GDPR compliant • Export or delete your data at any time WHO IS THIS FOR? Anyone who values their privacy — at a café, in a meeting, in a changing room, in a rideshare, or just walking through a crowd. Whether you're a journalist, an activist, an executive, or simply privacy-conscious, Spectre gives you awareness of recording-capable eyewear nearby. Spectre needs Bluetooth access to function. Location access is optional. No connections are ever made with detected devices.
Deckerr
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Deckerr is the app for card collectors and players: Magic: The Gathering, Pokémon, Yu-Gi-Oh!, Lorcana, One Piece Card Game and Riftbound. Scan a whole stack of cards in one photo Lay your cards out on the table and take one photo: Deckerr detects and identifies up to 100 cards at once, right on your phone (no photos uploaded). Add a big collection in minutes — no scanning card by card, no manual entry. Just one card to add? Single-card scan is there too. Join your shop's community This is what makes Deckerr unique. Connect with your local shop's community and the wider network: • Buy, sell and trade cards directly with other members • Host or join play sessions: Commander, draft, Pokémon league and more • Find other players, chat and never miss an event All your games in one place Magic, Pokémon, Yu-Gi-Oh!, Lorcana, One Piece and Riftbound together in a single app, with the latest sets and cards. Plus everything to manage your collection Organized collection with filters (game, color, set, type, rarity), a wishlist of the cards you're missing, decks by game and format, and collection value tracking with market prices. Fast, mobile-first, and built by and for collectors. Download Deckerr and take back control of your card collection.
Screenshots
Verdict
The clearest difference is in-app purchases: Deckerr at none against Spectre's 2. Deckerr also leads on update cadence (daily vs fortnightly) and iOS requirement (15.1 vs 26.0). On price, ads 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. Spectre sells 2 in-app purchases, starting at $0.99 per month. Deckerr asks for nothing beyond the download.
Spectre ships an update fortnightly, Deckerr daily. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | Spectre | Deckerr |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 7 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | 6tSevn BV | Matthieu Reynier |
In-app purchases
Spectre
- Spectre Pro Monthly$0.991 Month
- Spectre Pro Yearly$4.991 Year
Deckerr
No in-app purchases









