# CalT vs Days Until

The clearest difference is price: Days Until at Free against CalT's $0.99. Days Until also leads on rating (4.0 vs 2.0) and update cadence (fortnightly vs every 16 months). CalT's advantage is in-app purchases (none vs 3). On review sentiment, ratings volume, ads and device support there is nothing between them.

Days Until is free to download; CalT costs $0.99 up front. Days Until sells 3 in-app purchases, starting at $0.99 per month. CalT asks for nothing beyond the download.

Days Until holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

CalT ships an update every 16 months, Days Until fortnightly. The most recent releases landed on October 30, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | CalT | Days Until |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/calt-date-and-time-calculator/id793926401/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/days-until-event-widget/id6737156552/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Kovalyov](https://appshunter.io/developer/718333197) | [Nikko Ferwelo](https://appshunter.io/developer/1774984591) |

## What reviewers say

### CalT

[App page](https://appshunter.io/ios/app/calt-date-and-time-calculator/id793926401)

Perform calculations with dates and times, including adding, subtracting, multiplying, and dividing time intervals. Customize the app's appearance with themes and colors. Find the difference between two specific dates and times.

**Highlights:** Add, subtract, multiply, and divide time intervals, Calculate difference between two dates/times, Switch between result modes, Lite and Dark themes, Customizable accent colors

**Features:** macOS Compatibility

**In-app purchases:** none


### Days Until

[App page](https://appshunter.io/ios/app/days-until-event-widget/id6737156552)

Track important dates like birthdays and anniversaries with precise countdowns down to the second. Keep key events visible on your home screen with customizable widgets and receive smart reminders so you never forget.

**Highlights:** Event countdowns to the second, Home screen widgets, Smart reminders, Birth insights and fun facts, Add photos to events, Privacy-focused, no account needed

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $5.99 | per year |
| Premium Unlock | $5.99 | one-time |


## Frequently asked questions

### Is CalT free?

CalT costs $0.99, with no in-app purchases.

### Is Days Until free?

Days Until is free to download, with in-app purchases available.

### Which has better reviews, CalT or Days Until?

Days Until is rated higher. CalT averages 2.0 out of 5 from 1 ratings, while Days Until averages 4.0 from 1 ratings.

### Do CalT or Days Until have ads?

Neither CalT nor Days Until shows ads.

### Which is updated more often, CalT or Days Until?

CalT ships an update every 16 months, and Days Until fortnightly. Most recently, CalT was updated on October 30, 2026 and Days Until on October 23, 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.*