Health & Fitness
Intervo
Haptic-first interval timer
iOSfor iPhone and iPad
- $0.99 one-time purchase
- No account
- No ads or app telemetry
Screenshots
5 images · iPhone 6.7"
iPad
5 images · iPad Pro 12.9" (3rd gen)
If you train in intervals — HIIT, Tabata, EMOM, boxing rounds, a quick circuit — you are usually moving, not watching a screen. Intervo is an interval timer built around that. Every phase change is a distinct vibration you feel without looking: a sharp double-pulse for work, a soft single for rest, a light count-in for the last three seconds, and a ramp at the finish, backed by audio cues.
It keeps the screen awake so the countdown is there whenever you do glance down, and it ducks your own music for a cue rather than stopping it. The clock is anchored to real wall-clock time, so taking a call or switching apps mid-set won't leave the timer drifting out of sync.
Five formats are ready the moment you open it, from Tabata to three-round boxing, and the editor lets you build your own — add steps, drag to reorder, set each duration, label them, and choose the repeats and rest between sets, with the total time updating as you go.
It is $0.99 once. No ads, no subscription, no account, and no network connection at all — your workouts and preferences live on the phone and nothing is collected.
About Intervo
Intervo is a HIIT and interval timer that does one thing perfectly — and asks you to pay for it exactly once.
No ads interrupting your set. No monthly subscription. No account, no sign-up, no tracking. Just $0.99, and it's yours.
But the real reason to choose Intervo is how it feels.
FEEL EVERY PHASE — HAPTIC-FIRST
Most timers expect you to stare at the screen. Intervo expects you to move. Every phase change is a distinct vibration you feel without looking:
• Work — a strong, sharp double-pulse. Go.
• Rest — a single soft pulse. Ease off.
• The final 3 seconds — a light 3-2-1 count-in tick.
• The finish — a celebratory ramp.
Pair that with crisp, synthesized audio cues and you can follow phase changes without staring at the screen.
SCREEN ON, READY TO TRAIN
Intervo keeps the screen awake while you train — that's the default, so your countdown is right there every time you glance down and it never loses your place. Audio cues play during the active workout, so you can train heads-up while the runner stays visible.
DUCK YOUR MUSIC, DON'T STOP IT
Keep your own playlist going. When a cue plays, Intervo briefly lowers your music, then brings it right back. Prefer cues over the top at full volume? Switch to Mix mode in Settings.
A RUNNER WORTH WATCHING
When you do look down, it's gorgeous: a huge countdown inside a draining progress ring, a full-screen background that smoothly cross-fades through phase colors (amber prepare → coral work → teal rest → green finish), your round and set counters, a "next up" preview, and an overall-progress bar. Tap anywhere to pause. Works beautifully in portrait and landscape, and keeps the screen awake while you train.
READY THE MOMENT YOU OPEN IT
Five proven formats are built in and ready to run:
• Tabata — 20s work / 10s rest × 8
• HIIT 40/20 — 40s work / 20s rest × 8
• EMOM 10 — one minute on the minute × 10
• Boxing — three 3-minute rounds with corner rests
• Quick Circuit — six 45/15 stations, three times through
Use any of them as-is, or tap to build your own.
BUILD EXACTLY WHAT YOU WANT
The editor is simple and powerful: add steps, drag to reorder, set each duration on a wheel, and label them however you like ("Sprint", "Plank", "Burpees"). Choose how many times the block repeats and how long to rest between sets. The total time updates live as you go.
DRIFT-FREE, ALWAYS ACCURATE
Intervo's clock is anchored to real wall-clock time, so it never drifts and never desyncs — switch apps, take a call, come back, and the countdown is exactly where it should be.
PRIVATE BY DESIGN
Everything lives on your device. There is no account, no analytics, no network connection, and nothing collected. The only thing Intervo stores is your workouts and preferences, right on your phone.
One focused tool. One small price. Built with care.
A Shadowfetch app. Published on the App Store by Robert Corbin.