AcornGrid

AcornGrid is an interval timer for training at home. Lay a workout out as a grid of work and rest cells, press start, and follow one big countdown — no setup, no account, no connection. WHAT IT DOES • One clear countdown. A large ring shows the seconds left in the current interval and a thin outer arc tracks the whole session, so you always know where you are without squinting. • The round at a glance. Under the ring sits the grid: one cell per interval in the round you are working, sized by how long it lasts. Finished cells fill in, the current one lights up and drains. You can see what is left from across the room. • The move, and the next move. Each work interval names the exercise and gives a one-line form cue. A chip underneath tells you what is coming so there is no scramble at the switch. • Skip, pause, restart. Jump forward or back an interval, pause mid-round, or restart the whole session from the top bar. SIX ROUTINES TO START Classic Tabata (the original 20/10), Morning Wake-Up, Core Grid, Lower Ladder, Full Canopy and Desk Reset. Three of them are low impact with no jumping, for training in a flat or early in the morning. BUILD YOUR OWN Pick from eighteen bodyweight moves, drag them into the order you want, then set work and rest seconds, rounds, cycles and the breather between cycles. The total time and the number of work intervals update as you edit, so you know exactly what you are signing up for before you start. Save as many routines as you like, or duplicate a starter plan and tweak it. EIGHTEEN MOVES, EXPLAINED Every exercise comes with a short setup description and a form cue — squats, push-ups, burpees, planks, mountain climbers, skater hops, wall sits, bird dogs, deep lunge reaches and more. Filter the library by body focus or by low impact only. YOUR TRAINING, TRACKED Finished sessions are logged automatically. The History screen charts your work minutes across the last seven days and groups every session by day. Profile keeps your running totals: sessions, banked work time, current and best streak, and routines built. Set a weekly session goal and watch the ring fill. ELEVEN MERITS Unlockable milestones tied to what you actually do — first session, ten sessions, a seven day streak, five hours of banked work, five routines built, three sessions before 8am. They track the same numbers the app already keeps; there is no second scoring system to chase. COMPLETELY OFFLINE No account. No sign-up. No ads. No analytics. No network requests of any kind — the app does not even ask for internet permission. Everything you record is stored in a private database on your phone and never leaves it. It works in airplane mode, on the train, in a basement gym. MADE TO GET OUT OF THE WAY Dark interface built for glancing at mid-set. Big-numbers mode strips the screen down to the clock and the ring. Reduced motion freezes the ambient animation. A final-countdown cue brightens the ring over the last three seconds, so you catch the switch without staring. AcornGrid is a fitness timer, not a medical device. Train within your limits and stop if something hurts.