Comparison

Create & Sell Accelerator vs Boom.API

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

Head to head
About

Create & Sell Accelerator

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Welcome to your pocket-sized business accelerator. Designed exclusively for Create & Sell Accelerator students, this app gives you instant access to all your learning modules, videos, replays, resources and community in one place - anytime, anywhere. Whether you're at your desk or on the school run, you can stay in momentum, stay inspired, and stay connected. Inside the app, you’ll find: Your full Create & Sell curriculum Direct access to our private community - cheer, connect and co-create with your fellow Creators Access to all the videos, replays and resources Announcements and reminders so you never miss a beat This app has been created with your success in mind, to help you stay consistent, feel supported, and keep making progress even on your busiest days. So go ahead, download the Create & Sell Accelerator app and then we’ll only be a tap away.

About

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.

Highlights
  • 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
Features
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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

Create & Sell Accelerator4 screens
Boom.API4 screens

Verdict

The call

The clearest difference is update cadence: Boom.API at every 5 days against Create & Sell Accelerator's every 4 months. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Create & Sell Accelerator ships an update every 4 months, Boom.API every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Create & Sell Accelerator versus Boom.API: the parameters behind the verdict, then further details
ParameterCreate & Sell AcceleratorBoom.API
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size128 MB43 MB
Age rating4+4+
DeveloperCarrie & Co LTDNikolai Cook

In-app purchases

None

Create & Sell Accelerator

No in-app purchases

None

Boom.API

No in-app purchases

Questions

Is Create & Sell Accelerator free?
Create & Sell Accelerator is free to download, with no in-app purchases.
Is Boom.API free?
Boom.API is free to download, with no in-app purchases.
Do Create & Sell Accelerator or Boom.API have ads?
Neither Create & Sell Accelerator nor Boom.API shows ads.
Which is updated more often, Create & Sell Accelerator or Boom.API?
Create & Sell Accelerator ships an update every 4 months, and Boom.API every 5 days. Most recently, Create & Sell Accelerator was updated on October 25, 2026 and Boom.API on October 24, 2026.

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