# Intervallical vs Timelapse Ref Calc

The clearest difference is price: Intervallical at Free against Timelapse Ref Calc's $0.49. Timelapse Ref Calc's advantage is update cadence (every 4 months vs every 23 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Intervallical is free to download; Timelapse Ref Calc costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Intervallical ships an update every 23 months, Timelapse Ref Calc every 4 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Intervallical | Timelapse Ref Calc |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/intervallical/id1578174278/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 8 MB | 0 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janusz Polowczyk](https://appshunter.io/developer/1578174280) | [Stein Erik Nilsen](https://appshunter.io/developer/1737251651) |

## What reviewers say

### Intervallical

[App page](https://appshunter.io/ios/app/intervallical/id1578174278)

This app offers a versatile countdown timer with three distinct modes: simultaneous, consecutive, and intervallic. It allows users to set up predefined timers for various tasks, from focused work sessions to delayed countdowns, all within a simple and familiar interface.

**Highlights:** Simultaneous timer mode, Consecutive timer mode, Intervallic timer mode, User-defined timer intervals, Simple tap controls, Predefined timer cards

**Features:** macOS Compatibility

**In-app purchases:** none


### Timelapse Ref Calc

[App page](https://appshunter.io/ios/app/timelapse-ref-calc/id6482289854)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Intervallical free?

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

### Is Timelapse Ref Calc free?

Timelapse Ref Calc costs $0.49, with no in-app purchases.

### Do Intervallical or Timelapse Ref Calc have ads?

Neither Intervallical nor Timelapse Ref Calc shows ads.

### Which is updated more often, Intervallical or Timelapse Ref Calc?

Intervallical ships an update every 23 months, and Timelapse Ref Calc every 4 months. Most recently, Intervallical was updated on October 5, 2026 and Timelapse Ref Calc on October 15, 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.*