# 2sBrain vs Deadline Countdown

The clearest difference is in-app purchases: Deadline Countdown at none against 2sBrain's 3. 2sBrain's advantage is update cadence (weekly vs fortnightly) and iOS requirement (15.5 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 2sBrain sells 3 in-app purchases, starting at $3.99 per month. Deadline Countdown asks for nothing beyond the download.

2sBrain ships an update weekly, Deadline Countdown fortnightly. The most recent releases landed on October 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 2sBrain | Deadline Countdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 66 MB | 1 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, Mac, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Nhu Vuong](https://appshunter.io/developer/1486864462) | [Myworkingmemory LLC](https://appshunter.io/developer/1892099684) |

## What reviewers say

### 2sBrain

[App page](https://appshunter.io/ios/app/2sbrainai-pdf-document-reader/id6768344372)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $3.99 | per month |
| VIP Yearly | $19.99 | per year |
| VIP Lifetime | $39.99 | one-time |


### Deadline Countdown

[App page](https://appshunter.io/ios/app/deadline-countdown-stay-sharp/id6777861464)

**In-app purchases:** none


## Frequently asked questions

### Is 2sBrain free?

2sBrain is free to download, with in-app purchases available.

### Is Deadline Countdown free?

Deadline Countdown is free to download, with no in-app purchases.

### Do 2sBrain or Deadline Countdown have ads?

Neither 2sBrain nor Deadline Countdown shows ads.

### Which is updated more often, 2sBrain or Deadline Countdown?

2sBrain ships an update weekly, and Deadline Countdown fortnightly. Most recently, 2sBrain was updated on October 8, 2026 and Deadline Countdown on September 19, 2026.

---

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