Scout SIS vs Boom.API
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scout SIS
This mobile application serves as a companion for a student information system, allowing users to monitor student engagement, attendance, and grades. It provides a convenient way to keep track of academic progress and participation.
- Track student engagement
- Monitor attendance
- View student grades
- Companion app functionality
- Academic progress tracking
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The Scout iOS mobile app is the mobile companion for Scout SIS. Track student engagement, attendance, grades, and more.
Boom.API
This app predicts if you'll hear a sonic boom from returning rocket boosters. It tracks launches, calculates blast zones, and sends personalized notifications so you know when to step outside.
- Tracks upcoming rocket launches
- Calculates sonic boom blast zones
- Interactive flight path map
- Personalized location-based predictions
- Customizable launch countdowns
- Push notifications for launches and reschedules
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Boom tells you what weather apps don't: whether you'll actually hear a sonic boom from a returning rocket booster. When a booster does a Return to Launch Site (RTLS) landing, it hits the ground with a boom that carries for miles. Boom figures out who's in the blast zone and warns you before it happens. WHAT BOOM DOES • Tracks upcoming launches from Vandenberg SFB, Cape Canaveral, and Kennedy Space Center • Calculates whether the sonic boom will reach your location based on the booster's descent corridor • Counts down to launch so you know exactly when to step outside • Shows an interactive flight path map with the sonic boom wave corridor • Sends push notifications before launch so you don't miss it PERSONALIZED PREDICTIONS Turn on location-based predictions and Boom tells you how far you are from the boom corridor, how loud it'll be (Loud / Audible / Faint), and whether the weather will affect how far the sound carries. NOTIFICATIONS Get notified 24 hours before, 1 hour before, or right at launch, your call. You'll also get an alert if a launch reschedules within that 24-hour window. Not every launch produces a sonic boom. Boom filters out ocean landings and only shows you what's actually relevant to where you are.
Screenshots
Verdict
The clearest difference is review sentiment: Boom.API at 100% against Scout SIS's 9%. Boom.API also leads on rating (5.0 vs 1.3). Scout SIS's advantage is ratings volume (23 vs 2). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Boom.API holds the better App Store score, 5.0 against 1.3. That said, the two scores are not equally well evidenced: Scout SIS has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 9% of Scout SIS's written reviews are positive against 100% of Boom.API's.
Scout SIS ships an update weekly, Boom.API every 5 days. The most recent releases landed on September 26, 2026 and October 15, 2026 respectively.
| Parameter | Scout SIS | Boom.API |
|---|---|---|
| Price | Free | Free |
| Rating | 1.3 (23 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 9.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | 2 |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 47 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Noah Fichter | Nikolai Cook |
Customer experience
Scout SIS
Boom.API
In-app purchases
Scout SIS
No in-app purchases
Boom.API
No in-app purchases
