# Interval Timer vs Calculadora runner

The clearest difference is in-app purchases: Calculadora runner at none against Interval Timer's 7. Calculadora runner also leads on ads (none vs shown). Interval Timer's advantage is update cadence (fortnightly vs every 42 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Interval Timer sells 7 in-app purchases, starting at $3.99 per month. Calculadora runner asks for nothing beyond the download.

Interval Timer ships an update fortnightly, Calculadora runner every 42 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Interval Timer | Calculadora runner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (297 ratings)](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738/reviews)** | — |
| Number of ratings | **297** | — |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 42 months |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 23 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | +4 | 17+ |
| Developer | [Miklos Pavel](https://appshunter.io/developer/979923367) | [Marcos Ceresoli](https://appshunter.io/developer/1677188149) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738)

This app provides a customizable timer for high-intensity interval training (HIIT), Tabata, and other workout styles. It offers clear visual cues and sound notifications to guide users through work and rest periods, allowing them to focus on their exercise. Users can save routines, set reminders, and integrate with music playback.

**Highlights:** Customizable work and rest intervals, Sound cues for phase transitions, Background operation, Landscape mode support, Save custom routines, Workout reminders, Clear phase color indicators

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Remove Ads | $1.99 | one-time |
| Custom sounds | $1.99 | one-time |
| Premium features | $4.99 | one-time |
| Premium features | $9.99 | one-time |
| Premium features | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Great timer functionality
- 👍 Can program intervals (warmup, activity, rest, cool down)
- 👍 Supports many rounds (up to 100)
- 👍 Ability to save workouts

**What reviewers complain about**

- 💰 App became paid unexpectedly
- 💰 Premium required to start timer
- 💡 Round cap limits functionality for high rep activities
- 💡 Needs more than 30 intervals for some routines (e.g., stretching)
- 💡 Lacks a background click feature (e.g., every second)

**Reported bugs**

- Advertisements still present after paying for removal
- App requires premium to start timer (recent change)

**Requested features**

- Remove the cap on rounds
- Add a background click feature (e.g., every second)
- More sound options
- Option for more than one workout
- Add a halfway beep


### Calculadora runner

[App page](https://appshunter.io/ios/app/calculadora-runner/id6446859811)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

Interval Timer is free to download, with in-app purchases available.

### Is Calculadora runner free?

Calculadora runner is free to download, with no in-app purchases.

### Do Interval Timer or Calculadora runner have ads?

Interval Timer shows ads; Calculadora runner does not.

### Which is updated more often, Interval Timer or Calculadora runner?

Interval Timer ships an update fortnightly, and Calculadora runner every 42 months. Most recently, Interval Timer was updated on November 2, 2026 and Calculadora runner on November 3, 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.*