Boom.API vs AWS SAP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
AWS SAP
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Prepare for the AWS Certified Solutions Architect Professional (SAP-C02) exam with realistic practice questions, exam mode, review mode, detailed explanations, bookmarks, and performance tracking. Study anytime with full offline access, review weak areas by domain, and build confidence before exam day. FEATURES • Realistic exam simulation with timed mode • Practice mode for focused, untimed study • Detailed explanations for every question • Bookmark questions for quick review • Performance tracking by exam domain • Offline access — study anywhere, no internet required • Cloud sync — sign in with Google to back up your progress PREMIUM SUBSCRIPTION Dojo Exam offers an auto-renewable annual subscription to unlock the full question bank. • Subscription name: Annual Auto-Renew • Duration: 1 year • Price: See in-app pricing for your region • Payment is charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period • Your account will be charged for renewal within 24 hours prior to the end of the current period • You can manage and cancel your subscription in your Apple ID account settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription ACCOUNT & DATA • Sign in with Google to sync progress across devices • Delete your account and all associated data anytime from Settings → Delete Account Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dojo-exam-production.up.railway.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Boom.API at none against AWS SAP's 1. Boom.API also leads on update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. AWS SAP sells 1 in-app purchase, starting at $14.99 per year. Boom.API asks for nothing beyond the download.
Boom.API ships an update every 5 days, AWS SAP every 2 weeks. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.
| Parameter | Boom.API | AWS SAP |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 43 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Nikolai Cook | Tutorials Dojo Pte. Ltd. |
In-app purchases
Boom.API
No in-app purchases
AWS SAP
- Annual Premium$14.991 Year









