Comparison

arcSail vs Sea Current Measure Tool

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

Head to head
About

arcSail

This app provides advanced real-time race scoring for sailing clubs. It supports single or multi-day regattas and season-long series with a user-friendly touch interface. Features include various scoring systems, handicap calculations, and instant results emailing.

Highlights
  • Real-time race scoring
  • Supports single/multi-day regattas
  • Season-long series scoring
  • Multiple scoring systems (Low Point, High Point, etc.)
  • Handicap and penalty calculations
  • Email/AirPrint results (in-app purchase)
  • Data backup and transfer
Features
Read full description

Advanced real-time race scoring software for your sailing club. arcSail can be quickly setup to score a single or multi-day regatta while powerful enough to score several season-long series simultaneously. With its easy to use, familiar, touch interface for iPhone and iPad including many hand-crafted elements, arcSail makes scoring simple and intuitive. Custom time, number and calendar controls make setup easy and in app tips help get you started quickly. Sailors, Boats, Events and Fleets can be pre-configured or imported from Registration data, so that getting up and running on the water is a snap. Scorers order and tap boats from one or more fleets to finish. Once the races are run, handicapping and penalty calculations are applied instantly and results can be immediately emailed to shore (with in-app purchase on a data-capable device). Wide range of scoring features, including: • Short and long series calculations are supported using Low Point, Bonus Point, High Point Percentage, Low Point Average or Chips3 systems. • Uncorrected (one-design) fleets and/or handicapped (mixed) fleets using Portsmouth Yardstick (PY), wind-strength corrected North American Portsmouth Yardstick (NAPY), Small Catamaran Handicap Rating System (SCHRS), PHRF Time-on-Time and Time-on-Distance can be easily scored. • Custom handicap systems can be defined. • Multiple simultaneous fleet starts and finishes tracking. • Calculations follow the RRS & Appendix A guidelines. With in-app purchase: * Results can be emailed or Air Printed in HTML format for easy display on the club website or bulletin board. * Data can be backed up to Apple Files and/or swapped between devices using email. Visit our website https://www.arcsail.com for additional details and tutorials. Finally, you will know who is buying the drinks before you reach the shore!

About

Sea Current Measure Tool

This tool helps sailors and coaches measure sea current speed and direction directly on the water using an iPhone. It's designed for race preparation and training, using GPS data to calculate water movement from a floating object.

Highlights
  • Measure sea current speed and direction
  • GPS-based current calculation
  • Simple start and stop measurement
  • Store and review measurements
  • Display measurements on map
  • Useful for race preparation and training
Features
Currently charting
Read full description

Measure sea-current speed and direction from your iPhone in minutes—built for sailors, coaches, and race teams. Map readings across the race area, review history, export CSV data, and share measurements with your team for smarter tactical decisions. WHY TIDEMEASURE Even a small current can change boat speed, laylines, mark roundings, and the favored side of the course. TideMeasure turns a simple drift test into a clear speed-and-direction result without specialized hardware. HOW IT WORKS 1. Drop a floating stick or small object into the water. 2. Tap Start as it begins to drift. 3. Retrieve it after a short measurement. 4. Tap Stop to see current speed and direction. FEATURES • Measure current speed and direction using GPS • View results in m/min, m/s, cm/s, or knots • Map measurements across the race area • Review saved measurements and history • Create or join a team and share readings • Select and export measurements as CSV • Continue measuring offline TideMeasure is designed for race preparation, coaching, training sessions, and building a clearer picture of current around the course. Location access is required during measurements and for displaying results on the map. Apple Maps data is used for mapping.

Screenshots

arcSail4 screens
Sea Current Measure Tool4 screens

Verdict

The call

The clearest difference is price: arcSail at Free against Sea Current Measure Tool's $19.99. arcSail also leads on ratings volume (3 vs 1) and iOS requirement (13.0 vs 17.0). Sea Current Measure Tool's advantage is rating (5.0 vs 3.7) and review sentiment (100% vs 60%). On update cadence, ads 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

arcSail is free to download; Sea Current Measure Tool costs $19.99 up front. arcSail sells 1 one-off in-app purchase. Sea Current Measure Tool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sea Current Measure Tool holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 60% of arcSail's written reviews are positive against 100% of Sea Current Measure Tool's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard8 real differences · 3 level
arcSail versus Sea Current Measure Tool: the parameters behind the verdict, then further details
ParameterarcSailSea Current Measure Tool
PriceFree — better$19.99
Rating3.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#46 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size7 MB14 MB
Age rating4+4+
DeveloperSmartphone Design LtdMaster Sailing jdoo

Customer experience

arcSail

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Sea Current Measure Tool

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

arcSail

One-time1
  • Enable Email Output$9.99
None

Sea Current Measure Tool

No in-app purchases

Questions

Is arcSail free?
arcSail is free to download, with in-app purchases available.
Is Sea Current Measure Tool free?
Sea Current Measure Tool costs $19.99, with no in-app purchases.
Which has better reviews, arcSail or Sea Current Measure Tool?
Sea Current Measure Tool is rated higher. arcSail averages 3.7 out of 5 from 3 ratings, while Sea Current Measure Tool averages 5.0 from 1 ratings.
Do arcSail or Sea Current Measure Tool have ads?
Neither arcSail nor Sea Current Measure Tool shows ads.
Which is updated more often, arcSail or Sea Current Measure Tool?
arcSail ships an update every 2 months, and Sea Current Measure Tool every 2 months. Most recently, arcSail was updated on October 24, 2026 and Sea Current Measure Tool on October 27, 2026.

Other comparisons