# Ad Killer TW vs Days Counter (Countdown Days)

The clearest difference is in-app purchases: Ad Killer TW at none against Days Counter (Countdown Days)'s 1. Ad Killer TW also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). Days Counter (Countdown Days)'s advantage is update cadence (every 5 weeks vs every 24 months). On price and device support there is nothing between them.

Both are free to download. Days Counter (Countdown Days) sells 1 one-off in-app purchase. Ad Killer TW asks for nothing beyond the download.

Ad Killer TW ships an update every 24 months, Days Counter (Countdown Days) every 5 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ad Killer TW | Days Counter (Countdown Days) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 5 weeks** |
| Size | 4 MB | 31 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [TIEN TA LEE](https://appshunter.io/developer/569106001) | [庆鸿 林](https://appshunter.io/developer/1558629938) |

## What reviewers say

### Ad Killer TW

[App page](https://appshunter.io/ios/app/ad-killer-tw/id1052843682)

**Features:** macOS Compatibility, Safari Extension

**In-app purchases:** none


### Days Counter (Countdown Days)

[App page](https://appshunter.io/ios/app/days-counter-countdown-days/id1587592197)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Membership | $9.99 | one-time |


## Frequently asked questions

### Is Ad Killer TW free?

Ad Killer TW is free to download, with no in-app purchases.

### Is Days Counter (Countdown Days) free?

Days Counter (Countdown Days) is free to download, with in-app purchases available.

### Do Ad Killer TW or Days Counter (Countdown Days) have ads?

Days Counter (Countdown Days) shows ads; Ad Killer TW does not.

### Which is updated more often, Ad Killer TW or Days Counter (Countdown Days)?

Ad Killer TW ships an update every 24 months, and Days Counter (Countdown Days) every 5 weeks. Most recently, Ad Killer TW was updated on October 26, 2026 and Days Counter (Countdown Days) on October 25, 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.*