Comparison

SoundScope vs Cairn Maps

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

Head to head
About

SoundScope

Features
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Transform your iPhone into a powerful audio measurement and analysis device. SoundScope provides musicians, sound engineers, and audio enthusiasts with professional-grade tools for measuring, analyzing, and working with sound. SOUND LEVEL METER - Real-time decibel (dB) measurement with high accuracy - Visual gauge with color-coded safety zones - Min, max, and average level tracking - Save measurements with location and notes - Hearing protection warnings at dangerous levels (85+ dB) - Customizable microphone calibration SPECTRUM ANALYZER - Real-time FFT frequency analysis - Visualize frequencies from 20Hz to 20kHz - Choose between 16, 32, or 64 frequency bands - Peak frequency detection with musical note identification - Perfect for identifying resonances and room acoustics PRECISION METRONOME - Professional metronome with BPM range 40-240 - Multiple time signatures (2/4 to 8/4) - Visual beat indicators - Haptic feedback on each beat - Quick tempo presets (Largo, Andante, Allegro, Presto) - Crystal clear click sounds TONE GENERATOR - Generate test tones from 20Hz to 20kHz - Six waveform types: Sine, Square, Sawtooth, Triangle, White Noise, Pink Noise - Logarithmic frequency slider for precise control - Quick access to standard frequencies (A440, Middle C, 1kHz, 10kHz) - Adjustable volume control - Perfect for testing speakers, room acoustics, and hearing MEASUREMENT LIBRARY - Save and organize all your measurements - Search by location, notes, or date - View statistics and trends over time - Export measurements to CSV - Beautiful data visualization charts **DESIGNED FOR PROFESSIONALS** - Clean, intuitive interface - Dark mode support - Haptic feedback throughout - Privacy-focused (all data stored locally) - No ads, no subscriptions required **PERFECT FOR:** - Musicians practicing and performing - Sound engineers checking levels - Podcasters monitoring audio - Teachers demonstrating acoustics - HVAC professionals measuring noise - Event planners checking venue sound - Anyone curious about sound in their environment HEARING SAFETY SoundScope includes automatic warnings when sound levels become dangerous. Prolonged exposure to sounds above 85 dB can cause hearing damage - SoundScope helps you stay aware and protect your hearing. Download SoundScope today and discover a new way to see sound!

About

Cairn Maps

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Offline Trail Maps and GPS Hiking Tracker Navigate the wilderness with confidence using Cairn, the hiking and outdoor navigation app designed for adventurers who venture beyond cell service. Whether planning a day hike or multi day backpacking trip, Cairn provides essential tools to stay on track and record your journeys. OFFLINE MAPS FOR BACKCOUNTRY EXPLORATION Download high quality topographic maps before leaving home and access them anywhere without internet connection. Save custom map regions at multiple resolution levels, ensuring detailed terrain information when you need it most. The tile-based download system optimizes storage while maintaining excellent map clarity for wilderness navigation. GPS TRACK RECORDING AND STATISTICS Record every step of your outdoor adventures with precision GPS tracking. Cairn captures your route, elevation changes, speed, and distance in real-time. Review detailed statistics including total distance, elevation gain and loss, average pace, and duration. The elevation profile visualizes your climb throughout each journey. WAYPOINT AND ROUTE PLANNING Plan adventures by creating custom routes with multiple waypoints. Drop markers at trailheads, campsites, water sources, and scenic viewpoints. The route planning system calculates total distance, cumulative elevation changes, and estimated hiking time to help you prepare for each expedition. TRAIL DISCOVERY AND SEARCH Find new trails using built-in discovery features. Search hiking paths by name, location, difficulty level, surface type, and distance. Filter results to match your preferences, from easy nature walks to challenging mountain ascents. Trail listings include length, elevation gain, estimated time, and terrain conditions. TRACK IMPORT AND EXPORT Transfer hiking data between apps and devices seamlessly. Import GPX, KML, FIT, TCX, and GeoJSON files from Garmin, AllTrails, and OnX Backcountry. Export recorded tracks to share with friends or backup your adventures. The import system preserves all track details including timestamps and elevation data. PUBLIC LAND BOUNDARIES Know where you can legally hike and camp with integrated public land boundary information. View national forests, wilderness areas, and state parks directly on the map. Plan trips within permitted areas and discover new public lands near your location. REAL TIME NAVIGATION ASSISTANCE Follow planned routes with navigation designed for trail use. The system tracks progress along routes, displays distance to upcoming waypoints, and alerts you when approaching key locations. Visual indicators show bearing and direction to keep you oriented. TRACK HISTORY Access complete hiking history organized by date with detailed statistics. Search past tracks, review performance trends, and revisit favorite trails. Track management groups activities by week, month, and year for easy progress tracking. CUSTOMIZABLE MAP DISPLAY Tailor map display with multiple overlay options. Toggle visibility of trails, waypoints, and public land boundaries. The dark-themed interface reduces eye strain while maintaining readability in bright sunlight. STORAGE MANAGEMENT Monitor offline map storage with built in tools. View space occupied by each downloaded region, delete unneeded maps, and resume interrupted downloads. KEY FEATURES Downloadable offline topographic maps GPS track recording with elevation and speed metrics Custom waypoint creation with icons Route planning with distance calculations Trail search with filtering options Import from GPX, KML, FIT, TCX, GeoJSON Public land boundary visualization Real-time navigation guidance Track history and statistics Dark theme for outdoor use Download Cairn and transform how you explore the outdoors. From local trails to remote wilderness, hike with confidence and preserve memories of every journey. Perfect for hiking, backpacking, trail running, and outdoor activities where reliable navigation matters.

Screenshots

SoundScope4 screens
Cairn Maps4 screens

Verdict

The call

The clearest difference is update cadence: Cairn Maps at every 6 days against SoundScope's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

SoundScope ships an update every 3 months, Cairn Maps every 6 days. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

Scorecard1 real difference ยท 5 level
SoundScope versus Cairn Maps: the parameters behind the verdict, then further details
ParameterSoundScopeCairn Maps
PriceFreeFree
Update frequencyEvery 3 monthsEvery 6 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS17.0 โ€” better18.2
Further details โ€” not scored
Size5 MB15 MB
Age rating4+4+
DeveloperROBERT PRICEYMMV

In-app purchases

None

SoundScope

No in-app purchases

None

Cairn Maps

No in-app purchases

Questions

Is SoundScope free?
SoundScope is free to download, with no in-app purchases.
Is Cairn Maps free?
Cairn Maps is free to download, with no in-app purchases.
Do SoundScope or Cairn Maps have ads?
Neither SoundScope nor Cairn Maps shows ads.
Which is updated more often, SoundScope or Cairn Maps?
SoundScope ships an update every 3 months, and Cairn Maps every 6 days. Most recently, SoundScope was updated on October 5, 2026 and Cairn Maps on October 14, 2026.

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