Comparison

Intervallical vs Timelapse Ref Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Intervallical

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
Read full description

Intervallical is a simple to use countdown timer with three distinct modes of operation: Simultaneous, Consecutive, and Intervallic. Simultaneous mode starts the two user-defined timers at the same moment, and then notifies the user when each of the two reached zero. Consecutive mode works similarly to the Simultaneous mode, but the difference is that the second timer fires off after the first one hits zero. This is a take on the classic „Pomodoro” timer, in which a 25-minute study session is followed by a 15-minute break to „recharge the batteries” before another 25-minute session takes place. The third, and the last mode of operation, is the Intervallic mode, which may seem a little peculiar, but adds a different flavour into the mix. The way it works is that the user defines a specific time interval for the second timer to start. Say that the user set the first timer for 4 minutes and the second for 6 minutes, with the interval in-between being set for 1 minute. The second timer, which was initially set for 6 minutes, will fire only when the first timer will reach 3 minutes. That way the countdown for the second timer can be „delayed” by the user-specified interval. The app was built so that it is easy to use, with controls (and UI) that are familiar to iOS users. Simply add a new card, which contains your predefined timers, and you are ready to go. Start the countdown by tapping the middle of the circle, tap once again to pause, and tap twice to reset the timers. That’s all there is to it.

About

Timelapse Ref Calc

Features
Read full description

This is a switchable calculator that lets you choose what to calculate at any given time regarding timelapse photography. Recording time, interval (in seconds) FPS (frames per second), video duration and a hint of images needed. To see more apps like this, go to www.discobajas.com

Screenshots

Intervallical4 screens
Timelapse Ref Calc1 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Intervallical ships an update every 23 months, Timelapse Ref Calc every 4 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Intervallical versus Timelapse Ref Calc: the parameters behind the verdict, then further details
ParameterIntervallicalTimelapse Ref Calc
PriceFree — better$0.49
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 23 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size8 MB0 MB
Age rating4+4+
DeveloperJanusz PolowczykStein Erik Nilsen

In-app purchases

None

Intervallical

No in-app purchases

None

Timelapse Ref Calc

No in-app purchases

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 7, 2026.

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