# Important Dates vs ИС ПКДСМ

The clearest difference is in-app purchases: ИС ПКДСМ at none against Important Dates's 3. Important Dates's advantage is update cadence (every 2 weeks vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Important Dates sells 3 one-off in-app purchases. ИС ПКДСМ asks for nothing beyond the download.

Important Dates ships an update every 2 weeks, ИС ПКДСМ every 6 months. The most recent releases landed on September 27, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Important Dates | ИС ПКДСМ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (39 ratings)](https://appshunter.io/ios/app/important-dates-countdown/id1625185222/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 82 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Roman Kotov](https://appshunter.io/developer/912021271) | [Moscow Region Government](https://appshunter.io/developer/985183957) |

## What reviewers say

### Important Dates

[App page](https://appshunter.io/ios/app/important-dates-countdown/id1625185222)

Easily track upcoming events or past milestones with this intuitive day counter. Organize events with custom folders, set personalized reminders, and view countdowns directly on your home screen. Make every moment count by staying on top of what matters most.

**Highlights:** Unlimited event tracking, Custom event organization with folders, Personalized reminders and notifications, Home screen widgets for instant updates, Track days remaining and days elapsed, Unique automatically generated backgrounds

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the project | $1.99 | one-time |
| Support the project | $9.99 | one-time |
| Support the project | $19.99 | one-time |


### ИС ПКДСМ

[App page](https://appshunter.io/ios/app/id6741479586)

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

**In-app purchases:** none


## Frequently asked questions

### Is Important Dates free?

Important Dates is free to download, with in-app purchases available.

### Is ИС ПКДСМ free?

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

### Do Important Dates or ИС ПКДСМ have ads?

Neither Important Dates nor ИС ПКДСМ shows ads.

### Which is updated more often, Important Dates or ИС ПКДСМ?

Important Dates ships an update every 2 weeks, and ИС ПКДСМ every 6 months. Most recently, Important Dates was updated on September 27, 2026 and ИС ПКДСМ on September 17, 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.*