Colour by Numbers vs SwimSplit

Colour by Numbers is a permanent light installation in the tower at Telefonplan in Stockholm. With this app, you can change the colours of the light in the tower. The tower is 72 meters high and has 20 floors, of which the top ten are used for Colour by Numbers. The light installation is visible in many parts of Stockholm, within a radius of ten kilometers. Choose the floors that you want to colour by tapping on a floor or by swiping over the tower. You can deselect floors in the same way. Spin the colour wheels to colour the selected floors. You can create all colours by mixing red, green and blue. Share live images of the colours you create. www.colourbynumbers.org

SwimSplit replaces the stopwatch and notepad at the pool. Record swim times with one tap, organize swimmers into groups, track personal bests, and share professional PDF reports - all from your iPhone. BUILT FOR THE POOLSIDE Large start/stop buttons with haptic feedback, designed for wet hands and bright sunlight. Select the swimmer, pick the distance and stroke, tap start, tap stop. Time saved. ORGANIZE YOUR SWIMMERS Create groups for squads, classes, or families. Add swimmers with custom avatar colors. Everything is structured and easy to find — no more scrolling through messy notes. TRACK PROGRESS OVER TIME Every time entry is saved with distance, stroke, course type (SCM/LCM), date, and optional notes. Personal bests are tracked automatically. View progress charts filtered by event to spot trends across weeks and months. EXPORT PDF REPORTS Generate a professional swimmer report with one tap. Includes personal bests and full time history. Share with parents via Messages, email, AirDrop, or any method on your iPhone. TRAINING REMINDERS Set weekly training reminders for specific days and times. Never forget a pool session. 100% PRIVATE & OFFLINE No accounts. No sign-up. No tracking. No internet required. All data stays on your device using Apple's secure on-device storage. We literally cannot see your data. COMPLETELY FREE Every feature is included. No subscriptions, no in-app purchases, no ads. Just a simple tool for better swim sessions. Perfect for swim coaches, swim parents, learn-to-swim instructors, and anyone who times swimmers at the pool.