Surge: Interval Timer & HIIT
Simple Boxing & Circuit Rounds
₹ 299 · Designed for iPad. Not verified for macOS.
Now optimised for iPhone Duo. Pay once, train forever — every feature included, no subscriptions, no ads.
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.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Surge 1.3 — ready for iPhone Duo.
• Optimised for iPhone Duo — unfold for a big, full-screen timer ring on the inner display
• iPad multitasking — run Surge alongside your music or workout video in Split View and Stage Manager
• Under-the-hood polish
Still pay once, yours forever — no subscriptions, no ads.
If Surge keeps your rounds honest, a rating goes a long way for a small app. Thank you for training with Surge!
The developer, Matthew Avery, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Matthew Avery
- Size
- 719.9 KB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 averyio
