10 projects
Ten projects, four worlds.
Five apps for sailing, two for swimming, client work for a consultancy and an online retailer. All built from practice, each around a problem nobody had solved before.
- live
- 3
- in use
- 3
- coming soon
- 1
- in progress
- 3
My own apps
Sailing
Five apps for sailing, all grown out of my own needs, three of them live and free to use, one coming soon.
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SailRanker
What a regatta result does to your average and rank, calculated before the start.
- A sailor's average and rank from the official ranking list
- Scenarios: "place X at this regatta, new average and rank"
- Form curve over the season
Web appNo accountFreeNotifications View project -
FleetSheet
Your whole training group at a glance: ranking, progress, regattas and the season report.
- The group in the ranking: rank, points and movement per sailor, across clubs
- The group in the field: top and breadth, scored as a club
- Compare two or three sailors directly, light and strong wind per sailor
Web appNo accountNotificationsFree during beta View project -
Windstation
The wind at the club station, now and in the forecast, with an alert when it picks up.
- Current wind at the station, with the age of the reading
- History and model forecast
- Push alert when wind picks up
Web appWind alertFreeFrom the station View project -
SailLoop
Record a session and get it back in the evening as a question. For young sailors.
- iPhone and Apple Watch record GPS, heel and wind
- A signal on the water, a question on shore; no grades, no advice
- Evening review for sailors and coaches
iPhone and Apple WatchTablet for the groupStill in testing View project -
TrailerSlot
Which boat goes on which trailer, who tows which trailer: trailer planning for regattas and training trips, there and back.
- Parents sign up via a link from the Spond chat: which child, there and back, whether they can tow
- Assign boats to trailers and drivers to trailers, separately for the outward and return trip, automatically if you like
- The plan goes back into the Spond chat as text; parents see which trailer their child's boat is on
Web appNo account for parentsFree for parentsAlongside Spond View project
My own apps
Swimming
Two apps, for open water and for training, both in progress.
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OpenWaterPilot
The Apple Watch keeps open-water swimmers on a straight line, with taps on the wrist.
- One tap: go right, two taps: go left
- A corridor with thresholds at 15, 25 and 40 metres
- Silence rather than an uncertain correction
Apple WatchYour data stays with you View project -
Swim Analytics
Analyse swim workouts from Apple Health in 500 m segments, without data leaving the device.
- Read an Apple Health export, filter the swim workouts
- Pace per 500 m segment and its trend over time
- Heart rate per workout and per segment
From Apple HealthYour data stays with youIn the browser View project
Client work
Consulting firms
Two tools for a personnel-development consultancy: a management simulation moved from an old desktop application to the web, and a builder for development documents.
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Management simulation for aptitude diagnostics
A proven simulation on the web, scored exactly like the original.
- Scoring provably unchanged: 360 old sessions replayed, 99.86 percent agreement
- A new norm from real session data
- AI-assisted evaluation texts as a draft for the consultant's debrief
In the browserThree ways in View project -
Development measures
From a library of topics and measures to a personal development document in three steps.
- Choose topics, choose building blocks, generate the document
- Bilingual documents
- The editorial team maintains the library itself, without a developer
In the browserNo accounts View project
Client work
Online retailers
A tool for a fashion retailer on Shopify: sales data, prepared every working day for the season reports.
Contact
A question about an app, or an idea for your club? An email is all it takes.
hello@dualcitizen.de