# Countdown Day Tracker vs ASO Pro

The clearest difference is monetization model: Countdown Day Tracker at free with in-app purchases against ASO Pro's subscription. Countdown Day Tracker also leads on iOS requirement (15.0 vs 17.6). ASO Pro's advantage is ads (none vs shown) and update cadence (every 3 days vs every 4 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Countdown Day Tracker sells 2 in-app purchases, starting at $0.99 per month and ASO Pro sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Countdown Day Tracker ships an update every 4 months, ASO Pro every 3 days. The most recent releases landed on June 5, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Countdown Day Tracker | ASO Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/aso-pro-keyword-tracking/id6692621886/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 84.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 45 MB | 12 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Hasan Basri Ozturk](https://appshunter.io/developer/1607706650) | [Ferdi Kiziltoprak](https://appshunter.io/developer/1281948797) |

## What reviewers say

### Countdown Day Tracker

[App page](https://appshunter.io/ios/app/countdown-day-tracker/id6475370113)

Never miss an important date again. This app helps you track upcoming events like birthdays and anniversaries, showing the remaining days, hours, and minutes. You can also reflect on past milestones by tracking time elapsed since they occurred.

**Highlights:** Custom countdowns for future events, Track time elapsed since past events, Real-time countdowns, Intuitive interface, Monthly and annual subscription options

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $8.99 | per year |


### ASO Pro

[App page](https://appshunter.io/ios/app/aso-pro-keyword-tracking/id6692621886)

This tool helps app developers and marketers improve their app's visibility and downloads. It offers keyword research, competitor analysis, performance tracking, and metadata optimization to enhance app store rankings and user acquisition.

**Highlights:** Keyword research and suggestions, Competitor analysis, Performance tracking and analytics, Localization support, Review and rating management, Metadata optimization

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Annual Premium | $49.99 | per year |
| Lifetime Premium | $49.99 | one-time |
| Lifetime Premium | $99.99 | one-time |


## Frequently asked questions

### Is Countdown Day Tracker free?

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

### Is ASO Pro free?

ASO Pro is free to download, with in-app purchases available.

### Do Countdown Day Tracker or ASO Pro have ads?

Countdown Day Tracker shows ads; ASO Pro does not.

### Which is updated more often, Countdown Day Tracker or ASO Pro?

Countdown Day Tracker ships an update every 4 months, and ASO Pro every 3 days. Most recently, Countdown Day Tracker was updated on June 5, 2026 and ASO Pro on September 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*