# Intervals vs Plain CALENDAR_

The clearest difference is update cadence: Plain CALENDAR_ at every 2 days against Intervals's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Intervals ships an update every 2 weeks, Plain CALENDAR_ every 2 days. The most recent releases landed on September 18, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Intervals | Plain CALENDAR_ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/intervals-pro-timer/id6504121358/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 1 MB | 107 MB |
| Requires iOS | 17.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aydin Metel](https://appshunter.io/developer/1750982740) | [Hyobeom Han](https://appshunter.io/developer/1739693153) |

## What reviewers say

### Intervals

[App page](https://appshunter.io/ios/app/intervals-pro-timer/id6504121358)

This app helps you manage work and rest periods with customizable timers. It features a visual countdown, interval tracking, and audible alerts to keep you focused and balanced during workouts, study sessions, or tasks.

**Highlights:** Customizable work and rest intervals, Round and total time calculation, Visual circular timer, Pause, resume, and navigate controls, Audible chime alerts, Progress indicators

**Features:** macOS Compatibility

**In-app purchases:** none


### Plain CALENDAR_

[App page](https://appshunter.io/ios/app/plain-calendar/id6523414947)

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

**In-app purchases:** none


## Frequently asked questions

### Is Intervals free?

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

### Is Plain CALENDAR_ free?

Plain CALENDAR_ is free to download, with no in-app purchases.

### Do Intervals or Plain CALENDAR_ have ads?

Neither Intervals nor Plain CALENDAR_ shows ads.

### Which is updated more often, Intervals or Plain CALENDAR_?

Intervals ships an update every 2 weeks, and Plain CALENDAR_ every 2 days. Most recently, Intervals was updated on September 18, 2026 and Plain CALENDAR_ on September 2, 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.*