# CalT vs Countdown Timer

The clearest difference is price: Countdown Timer at Free against CalT's $0.99. Countdown Timer also leads on update cadence (every 3 days vs every 16 months). CalT's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 18.6). On ads and device support there is nothing between them.

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

CalT ships an update every 16 months, Countdown Timer every 3 days. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | CalT | Countdown Timer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/calt-date-and-time-calculator/id793926401/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 9 MB | 16 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Kovalyov](https://appshunter.io/developer/718333197) | [ALEJANDRO MUNOZ GARCIA](https://appshunter.io/developer/1876564746) |

## 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


### Countdown Timer

[App page](https://appshunter.io/ios/app/countdown-timer-remindoo/id6759055780)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remindoo Premium Monthly | $0.99 | per month |
| Remindoo Premium Yearly | $4.99 | per year |
| Remindoo Premium para siempre | $8.99 | one-time |


## Frequently asked questions

### Is CalT free?

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

### Is Countdown Timer free?

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

### Do CalT or Countdown Timer have ads?

Neither CalT nor Countdown Timer shows ads.

### Which is updated more often, CalT or Countdown Timer?

CalT ships an update every 16 months, and Countdown Timer every 3 days. Most recently, CalT was updated on September 16, 2026 and Countdown Timer on September 18, 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.*