Comparison

Race Regatta Timer vs Mares App

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

Head to head
About

Race Regatta Timer

This app transforms your Apple Watch into a regatta timer. It synchronizes with the official time, provides haptic feedback for countdowns, and sends iPhone notifications for start times. Continuous improvements and new features are planned.

Highlights
  • Apple Watch integration
  • Synchronized countdown
  • Haptic feedback
  • iPhone notifications
  • Customizable countdown start
Features
Read full description

Win the start before the race begins. Regatta Timer puts the countdown where it belongs: on your wrist. Set your start sequence, keep your eyes on the water, and feel clear haptic cues as the final seconds tick away. When the countdown reaches zero, Regatta Timer automatically switches to elapsed-time mode. Tap LAP to capture each split, then review your lap times directly on Apple Watch or in the companion iPhone app. BUILT FOR THE START LINE - Choose a countdown from 1 to 60 minutes - Set the time quickly with the Digital Crown - Feel haptic cues through the crucial final seconds - Continue automatically into elapsed timing at zero - Record individual lap times with one tap - See lap results directly below the LAP control - Stop safely and prepare the next countdown - Receive an optional start alert on your paired iPhone SIMPLE BY DESIGN Large controls, a clear timing display, and safeguards against accidental touches keep Regatta Timer focused on what matters when the start line gets busy. No account. No ads. Your timing data stays on your devices. Ideal for sailing regattas, club races, training starts, and practice sessions.

About

Mares App

Transform your Apple Watch Ultra into a dive computer, recording dives directly on your wrist. Log scuba, freediving, and technical dives, manage dive sites, and track underwater wildlife sightings. Share your adventures with dive buddies and keep your equipment details organized.

Highlights
  • Apple Watch Ultra dive computer integration
  • Digital dive logbook
  • Dive site database and management
  • Underwater wildlife tracking
  • Dive buddy sharing
  • Dive equipment management
  • Firmware updates
Features
Read full description

APPLE WATCH ULTRA DIVE COMPUTER Transform your Ultra into a dive computer. Record dives directly on your wrist and sync automatically to the Mares App. (In-app purchase required.) DIGITAL LOGBOOK: Log your Scuba, Freediving, Extended Range and Rebreather (SCR/CCR) dives in seconds via Bluetooth. Easily share your dives via QR code. Add new dives with your device’s GPS and download your dives from selected dive computers (1*). DIVE SITES: With the help of the Mares dive site database, you can immediately assign a dive site to your logged dives. You can also add your own private dive sites and share them with your dive buddies using a QR code. You can download your dive data directly from selected Mares dive computers . WILDLIFE: A variety of local wildlife is already stored in the app for individual dive sites. This means you can immediately assign the highlights of your underwater encounters to your logged dives. Your sightings are displayed on your personal world map. DIVE BUDDIES: Easily add your dive buddies via QR code or manually in the app. Share your best dives and most exciting animal encounters with friends using the Mares app. STATISTICS: All your dives and data can be seen at a glance, including your longest or deepest dive, your average dive time and more! DIGITAL EQUIPMENT: Store important dive equipment details, including serial numbers, photos and invoices. Enter maintenance dates and keep track of when your equipment needs to be serviced. NEWS AND VIDEOS: Stay up-to-date with all the latest news and videos from the world of water sports and diving. FIRMWARE: When you connect your dive computer to the app, you will be able to confirm if you have the latest firmware. As soon as it is outdated, you will receive a message regarding the newest firmware to download. TABLES: Here you will find useful information such as decompression tables and emergency scenarios. 1* Currently available for MARES Sirius, Sirius L, Sirius Hunter, Horizon, Genius, Quad CI, Quad 2, Quad Air, Quad, Puck 4, Puck Pro EZ, Puck lite, Puck Pro, Puck Pro Plus, Puck Air 2, Smart, Smart Apnea, Smart Air Terms of Use (EULA) Mares App for Apple Watch Ultra: https://my.divessi.com/published/viewhls/awu_terms_v1/2

Screenshots

Race Regatta Timer4 screens
Mares App4 screens

Verdict

The call

The clearest difference is review sentiment: Mares App at 48% against Race Regatta Timer's 0%. Mares App also leads on price (Free vs $3.99) and update cadence (every 4 weeks vs every 24 months). Race Regatta Timer's advantage is in-app purchases (none vs 4). On 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

CostPrice · In-app purchases · Ads · Monetization

Mares App is free to download; Race Regatta Timer costs $3.99 up front. Mares App sells 4 in-app purchases, starting at $2.99 per month. Race Regatta Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Race Regatta Timer ships an update every 24 months, Mares App every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Race Regatta Timer versus Mares App: the parameters behind the verdict, then further details
ParameterRace Regatta TimerMares App
Price$3.99Free — better
Rating—4.5 (192 ratings) — better
Positive reviews0.0% of reviews48.1% of reviews — better
Number of ratings—192 — better
Update frequencyEvery 24 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS17.016.6 — better
Further details — not scored
Size10 MB203 MB
Age rating4+4+
DeveloperG&S Applications GbRHead Watersports S.p.A.

Customer experience

Race Regatta Timer

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Mares App

All ratings189 ratings
Positive89.4%
Neutral4.8%
Negative5.8%
Written reviews108 reviews
Positive48.1%
Neutral12.0%
Negative39.8%

In-app purchases

None

Race Regatta Timer

No in-app purchases

4 purchases

Mares App

Subscriptions4
  • Snorkel Only$2.991 Month
  • MARES Fully Featured Monthly3 Days trial$8.991 Month
  • MARES Fully Featured Yearly3 Days trial$69.991 Year
Show 1 more
  • MARES Fully Featured Yearly Family3 Days trial$119.991 Year

Questions

Is Race Regatta Timer free?
Race Regatta Timer costs $3.99, with no in-app purchases.
Is Mares App free?
Mares App is free to download, with in-app purchases available.
Do Race Regatta Timer or Mares App have ads?
Neither Race Regatta Timer nor Mares App shows ads.
Which is updated more often, Race Regatta Timer or Mares App?
Race Regatta Timer ships an update every 24 months, and Mares App every 4 weeks. Most recently, Race Regatta Timer was updated on November 2, 2026 and Mares App on November 3, 2026.

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