# Surge: Interval Timer & HIIT — Gym, Boxing & Circuit Workout

> Gym, Boxing & Circuit Workout (iPhone/iPad app by Matthew Avery.)

- Source: https://appshunter.io/ios/app/surge-interval-timer-and-hiit/id6762224044 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Avery](https://appshunter.io/developer/1893424317)
- Category: Health & Fitness, Sports
- Price: $1.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 1 MB
- Languages: American English
- Released: 2026-04-15
- Data updated: 2026-09-02
- User reviews in markdown: https://appshunter.io/ios/app/surge-interval-timer-and-hiit/id6762224044/reviews.md

## What is Surge?

Surge is a beautifully designed interval timer for HIIT, Tabata, boxing rounds, EMOM and any circuit-style workout — at home, in the gym or ringside.

Pay once and it's yours forever. No subscriptions, no in-app purchases, no ads — every feature included.

Set your work and rest, pick your rounds and press play — Surge calls every phase with beeps and haptics, so you train bell to bell without watching the clock.

ROUNDS READY TO GO
• Tabata — 20s work / 10s rest × 8 rounds
• HIIT — 40s work / 20s rest × 10 rounds
• Boxing — 3:00 rounds with 1:00 rest × 6
• EMOM — 60-second intervals × 10
• Stretch — 30s holds / 10s rest × 12
• Edit any built-in preset to match your training

YOUR WORKOUT, YOUR RULES
• Work from 5 seconds to 10 minutes, rest up to 5 minutes
• 1–50 rounds, with an optional preparation countdown
• Save up to 20 presets with custom names and icons
• Skip a phase mid-workout; the screen stays awake to the final bell
• A large, glanceable countdown with an animated progress ring

BUILT RIGHT
• Pay once, own it for life — the price you see is everything
• No subscriptions, no in-app purchases, no upsells
• No ads, ever
• Megabytes, not gigabytes — no ad libraries, no analytics SDKs, nothing that isn't the app itself
• No account and no data collection — your presets never leave your device
• Designed for iPhone and iPad

Download Surge and let every round run itself.

## Pricing and in-app purchases

Base price: $1.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Surge Pro | $0.99 | one-time |



## Version history (last 5 releases)

### 1.2.1 — 2026-08-15

Thanks for using Surge! This update brings small refinements and performance improvements for a smoother experience.

### 1.2.0 — 2026-08-13

Thanks for using Surge! This update brings small refinements and performance improvements for a smoother experience.

### 1.1.5 — 2026-07-30

Thanks for using Surge! This update brings small refinements and performance improvements for a smoother experience.

### 1.1.4 — 2026-07-22

Thanks for using Surge! This update brings small refinements and performance improvements for a smoother experience.

### 1.1.3 — 2026-06-25

Thanks for using Surge! This update brings small refinements and performance improvements for a smoother experience.

## More apps by Matthew Avery

- [Invest Fast: Stock Market](https://appshunter.io/ios/app/invest-fast-stock-market/id6762561241)
- [Big Time Clock: Full Screen](https://appshunter.io/ios/app/big-time-clock-full-screen/id6763140176)
- [Lume: Simple Task & To Do List](https://appshunter.io/ios/app/lume-simple-task-and-to-do-list/id6770331131)
- [Tap Dot Tap: Neon Reflex](https://appshunter.io/ios/app/tap-dot-tap-neon-reflex/id6778353191)

All apps by Matthew Avery: https://appshunter.io/developer/1893424317

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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 2026-09-02.*