Coastlands vs Boom.API
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coastlands
Stay connected with your community through groups, events, and sermon archives. Access a Bible reading plan and manage your giving. This app provides essential tools for spiritual engagement and community connection.
- Groups
- Events
- Sermon Archive
- Bible Reading
- Giving
- Community Connection
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This app includes everything you need to stay connected at Coastlands including: Groups, Events, Sermon Archive, Bible Reading, Giving, and more! Download today. Mobile app version: 6.20.0
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 update cadence: Boom.API at every 5 days against Coastlands's every 17 months. Boom.API also leads on ratings volume (4 vs 1). Coastlands's advantage is device support (4 vs 2). On price, rating, 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.
On the App Store both sit at effectively the same score — 5.0 for Coastlands against 5.0 for Boom.API. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Coastlands ships an update every 17 months, Boom.API every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Coastlands | Boom.API |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 17 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 52 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Evangel Assembly of God (mobile) | Nikolai Cook |
Customer experience
Coastlands
Boom.API
In-app purchases
Coastlands
No in-app purchases
Boom.API
No in-app purchases
