Surge.
An interval timer built for the way you actually train.
Surge is an interval timer for HIIT, Tabata, boxing rounds, EMOM and any circuit-style workout — at home, in the gym or ringside. Set your work and rest periods, pick your rounds, and press play. No sign-up, no setup screens, no ads standing between you and the first round.
Download size
No bloat, and we mean it literally
The entire timer is under a megabyte — smaller than one photo on your phone. No ads, no account and no data collection, so nothing ships that is not the timer.
Features
What Surge does
Presets that cover most sessions
Tabata 20/10 × 8, HIIT 40/20 × 10, Boxing 3:00/1:00 × 6, EMOM 60s × 10 and Stretch 30/10 × 12 — all built in, timings already set.
Fully customisable
Work from 5 seconds to 10 minutes, rest up to 5 minutes, 1–50 rounds and a preparation countdown of up to 30 seconds.
Built to be glanceable
A dark interface with a large, glanceable countdown display and an animated progress ring.
Cues you don’t have to look for
Audio countdown beeps and haptic feedback on every phase change, so you can keep your eyes off the screen.
The screen stays awake
No lock-outs halfway through a round, and one app that works on both iPhone and iPad.
Nothing to sign up for
No account, no ads, no data collection. Your presets stay on your device.
The promise
How every averyio app works
No bloat
Megabytes, not gigabytes. No frameworks bolted on, no ad libraries, no analytics SDK phoning home — nothing ships that has not earned its place.
No subscriptions
No monthly fee waiting to catch you out, and nothing that quietly renews. What you get is yours to keep.
No ads, ever
Not a banner, not an interstitial, not a “watch this to continue”. You are the customer, never the product.
Private by design
No tracking, no analytics, nothing sold. Your data lives on your device — and where an app syncs or backs up, it goes through your own private iCloud account, never a server of ours or anyone else's.
FAQ
Surge questions, answered
What workouts does it suit?
Anything on a clock — HIIT, Tabata, CrossFit-style WODs, boxing and MMA rounds, EMOM, circuit training, jump rope intervals, strength work with timed rest, and yoga or stretching flows.
Does the screen stay on?
Yes. The screen stays awake during workouts, so you never lose the count mid-round.
Does Surge collect my data?
No. There is no account, no tracking and no ads, and your presets never leave your device. The full detail is in the Surge privacy policy.
Does it work on iPad?
Yes — Surge is universal. One app, iPhone and iPad.
Get Surge
No ads, no tracking, no subscription — the same promise behind every averyio app.