Apnea Competition Countdown vs Boyle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Apnea Competition Countdown
This app provides an automated countdown system for freediving competition organizers. It features professional voiceovers and allows for quick import of competition starts, simplifying event management.
- Automated countdown system
- Freediving competition organizer tool
- Professional voiceovers
- Two-tap AIDA start import
- Easy to use interface
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Automated countdown for freediving competition organisers (AIDA and CMAS) An easy to use app for competition organisers for setting up an automated countdown. Voice by a professional voice actor. Two-taps import of AIDA starts.
Boyle
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Boyle's law, also referred to as the Boyle–Mariotte law, or Mariotte's law, is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases. Does this sound like boring stuff from school? :-( Yes, it does as well for me. Nevertheless an in-depth understanding of Boyle-Mariotte Law is essential for a freediving or SCUBA student. If you are a diving instructor, tell your students to download the app and "play around" with it. You will notice that they will understand the physics without much theory in the class room.
Screenshots
Verdict
The clearest difference is in-app purchases: Boyle at none against Apnea Competition Countdown's 4. Apnea Competition Countdown's advantage is update cadence (every 2 months vs every 6 months). 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. Apnea Competition Countdown sells 4 one-off in-app purchases. Boyle asks for nothing beyond the download.
Apnea Competition Countdown ships an update every 2 months, Boyle every 6 months. The most recent releases landed on November 2, 2026 and October 10, 2026 respectively.
| Parameter | Apnea Competition Countdown | Boyle |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | Squarecrowd Apps, LLC | Andreas Horvath |
In-app purchases
Apnea Competition Countdown
- 1 week$14.99
- 1 month$20.99
- 3 months$27.99
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- 1 year$45.99
Boyle
No in-app purchases
Questions
Is Apnea Competition Countdown free?
Is Boyle free?
Do Apnea Competition Countdown or Boyle have ads?
Which is updated more often, Apnea Competition Countdown or Boyle?
Other comparisons
