# Intervo: HIIT Interval Timer — Editable Workout Ladders

> Editable Workout Ladders (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/intervo-hiit-interval-timer/id6775499898 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Health & Fitness, Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-06-04
- Data updated: 2026-10-02
- User reviews in markdown: https://appshunter.io/ios/app/intervo-hiit-interval-timer/id6775499898/reviews.md

## What is Intervo?

Generate an ascending, descending or pyramid interval workout with optional rest, preparation and cooldown, then save the full timeline as an editable workout.

HOW IT WORKS
1. Open Session Ladder from Home. Choose a shape, number of levels, first work interval and per-level increment.
2. Add optional rest and bookends. Review the complete timeline and total duration before saving.
3. Save as an editable workout, review the plan and use the existing workout runner when ready.

Existing workout editing, interval running, history and settings remain available. Generated intervals are stored together in a single transaction, preserving their order and exact durations.

WHAT TO KNOW
Up to 12 levels and two hours total. A pyramid includes its peak once. Zero-length optional stages are omitted. Rest after the final work stage is optional. The generated workout is a timer plan, not a prescribed exercise program.

iPhone and iPad.


## Version history (last 5 releases)

### 3.0.2 — 2026-10-02

Added App Store listings in more languages. No changes to the app itself.

### 3.0.1 — 2026-09-30

A clearer App Store name and search details. No other changes in this update.

### 3.0 — 2026-09-13

Session Ladder

Generate an ascending, descending or pyramid interval workout with optional rest, preparation and cooldown, then save the full timeline as an editable workout.

1. Open Session Ladder from Home. Choose a shape, number of levels, first work interval and per-level increment.
2. Add optional rest and bookends. Review the complete timeline and total duration before saving.
3. Save as an editable workout, review the plan and use the existing workout runner when ready.

Up to 12 levels and two hours total. A pyramid includes its peak once. Zero-length optional stages are omitted. Rest after the final work stage is optional. The generated workout is a timer plan, not a prescribed exercise program.

### 2.0.1 — 2026-06-24

This update sharpens the interface: the iPad layout now uses a centered, comfortable reading width instead of stretching edge to edge, plus small display fixes. iPhone is unchanged.

### 2.0 — 2026-06-21

Intervo 2.0 — a pro upgrade for interval training, still fully offline and haptic-first.

• Warm-up & cool-down bookends that auto-wrap your block on the same drift-free clock.
• Per-round splits: planned vs actual seconds for every round, right on the finish screen.
• Session training load (sRPE) with a 1–10 effort picker and a 7-day weekly-load chip in History.
• Energy estimate from an optional body weight, phase-weighted for each workout.
• Training heatmap + all-time personal records in History.
• Full run-plan preview with cumulative clocks, plus one-tap 0.75×–1.5× intensity scaling.

No account, no network — everything stays on your device.

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## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

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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 2026-10-02.*