# Surge HIIT: Interval Timer — Tabata, Circuit & Watch Coach

> Tabata, Circuit & Watch Coach (iPhone/iPad app by Ralf Koch.)

- Source: https://appshunter.io/ios/app/surge-hiit-interval-timer/id6771864961 (this page in markdown: same URL + `.md`)
- Developer: [Ralf Koch](https://appshunter.io/developer/596125475)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 2 MB
- Released: 2026-06-04
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/surge-hiit-interval-timer/id6771864961/reviews.md

## What is Surge HIIT?

HIIT shouldn't start with a fight against a confusing timer.
Surge HIIT does the hard part for you: pick a workout, hit start, and move.
Your phone — and your Apple Watch — call every interval so you never have to look down mid-burpee.

Built for people who want to sweat, not fiddle.

— WORKOUTS THAT ARE READY WHEN YOU ARE —
Eight studio-quality HIIT workouts, beginner to advanced. No setup, no guesswork. Warm-up, work, rest, cooldown — all timed, all coached, all yours from the first tap.

— BUILD YOUR OWN, EXACTLY YOUR WAY —
Drag-and-drop the perfect routine in our custom builder. Set work and rest to the second, name your exercises, pick your colors. Tabata, EMOM, circuits, ladders — if you can imagine it, you can build it. Frankly, the builder is tremendous.

— YOUR APPLE WATCH BECOMES A COACH —
This is where Surge pulls ahead. Real-time heart rate. Active calories. Haptic taps on every interval change so you feel the switch without breaking stride. Your custom workouts sync straight to your wrist, and your Activity rings close automatically. Leave the phone on the bench.

— SPOKEN CUES, EYES UP —
Surge announces each interval in a crisp neural voice and ducks your music so you hear it clearly.
No squinting at a screen between rounds. Choose your preferred accent and gender in Settings — preview it before you commit.

— NINE THEMES WITH REAL CHARACTER —
From cool Glacier blues to molten Ember, electric Voltage, and a neon Tron-inspired grid. Make the app yours.

— 100% OFFLINE. ZERO ADS. ZERO NONSENSE —
No internet required. No accounts. No ads interrupting your set. Ever. Just you and the work.

— APPLE HEALTH —
Every session saves to Apple Health — workouts, active calories and heart rate — so your progress lives where the rest of your fitness data does.

— START FREE —
Two built-in workouts and two custom workouts are free forever.
Want it all? Start a 14-day free trial — no credit card, no commitment. Keep the free workouts as long as you like.

Surge Premium unlocks:
• All 8 HIIT workouts
• Unlimited custom workouts and exercises
• Every color theme
• The full Apple Watch experience

It's a HIIT timer that respects your time. Believe me — your next workout starts the second you open it.

Download Surge HIIT and go.

———
Subscription details: A yearly subscription is available after the free trial, or buy Lifetime once and own it forever. Payment is charged to your Apple ID. The yearly subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Privacy Policy: https://surgehiit.app/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Surge Hiit Premium - Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Surge Hiit Premium - Lifetime | $79.99 | one-time |
| Surge Hiit Premium - 14-day Trial | Free | one-time |



## Version history (last 3 releases)

### 1.2 — 2026-06-10

Now asks for your feedback at the moments that matter — after you've built a few workouts, completed multiple sessions, and gotten real value from Surge.
No interruptions mid-workout. No prompts before you've tried the app. Just a timely nudge when you've earned an opinion worth sharing.

We're always refining. Got feedback? We read every word.

### 1.1 — 2026-06-09

Much better workout voiceover
Interval cues now use Apple's latest neural voices — clearer, more natural, and nothing like the robotic text-to-speech of old.

Pick your voice
Head to Settings → Workout Voiceover to choose the voice that motivates you most. Every option shows its regional accent flag and gender, and you can tap the preview button to hear it before committing.

### 1.0 — 2026-06-04

No release notes.

## More apps by Ralf Koch

- [Simply CPR](https://appshunter.io/ios/app/simply-cpr/id1164013111)
- [Hands of Wing Tsun](https://appshunter.io/ios/app/hands-of-wing-tsun/id1509023672)
- [Counter - Tally Meister](https://appshunter.io/ios/app/counter-tally-meister/id1554831111)
- [Mask Monitor](https://appshunter.io/ios/app/mask-monitor/id1565687563)
- [Tic Tac Toe: Strategy Warfare](https://appshunter.io/ios/app/tic-tac-toe-strategy-warfare/id1629580937)
- [Simply Track Time: Tracker](https://appshunter.io/ios/app/simply-track-time-tracker/id1669487255)

All apps by Ralf Koch: https://appshunter.io/developer/596125475

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*