# Time Interval Calculator — Nested stopwatch and net time

> Nested stopwatch and net time (iPhone/iPad app by Jean Schurger.)

- Source: https://appshunter.io/ios/app/time-interval-calculator/id6824035777 (this page in markdown: same URL + `.md`)
- Developer: [Jean Schurger](https://appshunter.io/developer/6824034239)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, French (France)
- Released: 2026-10-22
- Data updated: 2026-10-28

## What is Time Interval Calculator?

Time Interval Calculator (TimeDelta) is a stopwatch for nested intervals. Start a main interval — a workday, a training session, a meeting — then carve sub-intervals out of it: breaks, interruptions, phone calls. The app shows the total time, the time spent in sub-intervals and the net time, live.

• Nested sub-intervals, started, closed or chained with one tap
• Times adjustable to the second afterwards, even across midnight
• A label on each interval
• Results in hours:minutes:seconds and in decimal hours
• History of saved sessions, which you can open and edit later
• The current session is kept even if the app is closed
• In English or French, following your device language

No account, no ads, no tracking: everything stays on your device.

## Is Time Interval Calculator safe?

Not enough ratings yet to assess Time Interval Calculator.

## Is Time Interval Calculator legit?

Time Interval Calculator has limited verification signals. The AppsHunter Legitimacy Score for Time Interval Calculator is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.2.1 — 2026-10-22

The icons on the Start, Finish and Save buttons are now white, clearly visible on their colored background.

### 1.2 — 2026-10-22

No release notes.

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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 2026-10-28.*