# Delta Timer △ vs Ntrval Timer

The clearest difference is update cadence: Delta Timer △ at every 10 days against Ntrval Timer's every 3 weeks. Ntrval Timer's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Delta Timer △ ships an update every 10 days, Ntrval Timer every 3 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Delta Timer △ | Ntrval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/delta-timer/id6748762829/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 12 MB | 16 MB |
| Requires iOS | 18.1 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Delgado Dias](https://appshunter.io/developer/944281589) | [Blake Garcia](https://appshunter.io/developer/6782465594) |

## What reviewers say

### Delta Timer △

[App page](https://appshunter.io/ios/app/delta-timer/id6748762829)

This interval timer app guides users through various training routines like HIIT and Tabata. It offers customizable workouts with adjustable exercise and rest periods, featuring a minimalist design with light and dark modes for focused training.

**Highlights:** Customizable workout creation, Adjustable exercise and rest durations, Minimalist, distraction-free interface, Light and dark modes, Supports HIIT, Tabata, EMOM, and circuits

**Features:** macOS Compatibility

**In-app purchases:** none


### Ntrval Timer

[App page](https://appshunter.io/ios/app/ntrval-timer/id6782465592)

**In-app purchases:** none


## Frequently asked questions

### Is Delta Timer △ free?

Delta Timer △ is free to download, with no in-app purchases.

### Is Ntrval Timer free?

Ntrval Timer is free to download, with no in-app purchases.

### Do Delta Timer △ or Ntrval Timer have ads?

Neither Delta Timer △ nor Ntrval Timer shows ads.

### Which is updated more often, Delta Timer △ or Ntrval Timer?

Delta Timer △ ships an update every 10 days, and Ntrval Timer every 3 weeks. Most recently, Delta Timer △ was updated on October 6, 2026 and Ntrval Timer on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*