Comparison

Spark System vs Buoys App

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

Head to head
About

Spark System

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SPARK is a professional command-and-control platform built for emergency response teamsβ€”helping communities coordinate faster, communicate clearly, and manage incidents with confidence. WHAT SPARK DOES ALERTING * High-visibility pop-up alerts (in-app + optional phone call) * Persistent callback logic (can retry until acknowledged) * Real-time status: who received, who answered, who is available COMMAND & CONTROL * Live map of team deployment (location, role, key operational attributes) * Manage incidents directly on the map: meeting points, points of interest, notes * One-tap navigation to relevant locations COMMUNICATION * Instant Push-to-Talk (PTT) * Real-time operational conference calls * Cross-platform communication: mobile app + computer + landline support ADMINISTRATION * Shift registration and scheduling * Alert monitoring and shortage notifications * Event log and operational history * Role-based permissions and oversight tools BUILT FOR RELIABILITY IN THE FIELD * Operates via internet and/or telephony infrastructure (including landlines) * Automatic switching between infrastructures when needed * Load-resistant backend designed for high-demand moments SECURITY, PRIVACY, AND CONTROL * Multi-layer encryption and strict authentication * Runs on secured cloud infrastructure * Privacy-first location sharing: location is shown only with explicit user consent * Permission system tailored to roles, with safeguards for sensitive actions ACCESSIBILITY AND SIMPLICITY * Clear, user-friendly interface for all levels of tech experience * Built-in accessibility options (including visual accessibility support) BATTERY-SAVING MODE * Built-in power-saving controls managed by the user * Proven effective in extensive real-world use IMPORTANT: SPARK is intended for authorized emergency response organizations and official teams. It is not a replacement for national emergency services. In an immediate life-threatening emergency, contact your local emergency number.

About

Buoys App

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Buoys turns every sail into a game. Whether you're racing the fleet, training solo, or just enjoying a Sunday cruise, Buoys uses your phone's GPS to bring your time on the water to life. Set your own marks, track your speed and heading in real time, and turn every leg into a challenge worth chasing. What you can do with Buoys: β€’ Drop your own buoys β€” set virtual marks anywhere on the water and build your own course in seconds. β€’ Live GPS tracking β€” see your speed, heading, and position with smooth, accurate readings designed for the realities of life on a moving boat. β€’ Smart navigation β€” clear visual cues guide you to the next mark, with smoothed GPS data so your line on the map matches the line you're actually sailing. β€’ Beautiful maps β€” powered by Mapbox, with a clean, glare-friendly view tuned for outdoor use. β€’ Track your sessions β€” review your routes, top speeds, and progress over time. β€’ Sail solo or together β€” perfect for training, casual racing with friends, or learning the ropes. Built for sailors, by sailors. Buoys is designed to be simple enough to use one-handed at the helm, but powerful enough to give you the data that actually helps you sail better. No clutter. No noise. Just your boat, the water, and the next mark. Drop a buoy. Trim the sheet. Go.

Screenshots

Spark System1 screens
Buoys App4 screens

Verdict

The call

Spark System and Buoys App are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Spark System ships an update fortnightly, Buoys App every 2 weeks. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

ScorecardNo meaningful differences
Spark System versus Buoys App: the parameters behind the verdict, then further details
ParameterSpark SystemBuoys App
PriceFreeFree
Update frequencyFortnightlyEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 β€” better15.6
Further details β€” not scored
Size151 MB107 MB
Age rating17+4+
Developermati skibaSpirit Sailing Club Ltd

In-app purchases

None

Spark System

No in-app purchases

None

Buoys App

No in-app purchases

Questions

Is Spark System free?
Spark System is free to download, with no in-app purchases.
Is Buoys App free?
Buoys App is free to download, with no in-app purchases.
Do Spark System or Buoys App have ads?
Neither Spark System nor Buoys App shows ads.
Which is updated more often, Spark System or Buoys App?
Spark System ships an update fortnightly, and Buoys App every 2 weeks. Most recently, Spark System was updated on October 7, 2026 and Buoys App on October 19, 2026.

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