# Drill Defense TD vs Survive Factor

The clearest difference is ads: Survive Factor at none against Drill Defense TD's shown. Drill Defense TD's advantage is update cadence (every 2 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Drill Defense TD ships an update every 2 days, Survive Factor fortnightly. The most recent releases landed on May 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Drill Defense TD | Survive Factor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/survive-factor/id6669438265/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | — | Free |
| Size | 114 MB | 174 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Stubborn Gaming Studios LLP](https://appshunter.io/developer/1545884281) | [Any Games OU](https://appshunter.io/developer/1513586172) |

## What reviewers say

### Drill Defense TD

[App page](https://appshunter.io/ios/app/drill-defense-td/id6667114385)

**Features:** macOS Compatibility

**In-app purchases:** none


### Survive Factor

[App page](https://appshunter.io/ios/app/survive-factor/id6669438265)

Upgrade your weaponry with powerful multipliers and unique attachments to defeat formidable bosses. Discover hidden Angel Statues to gain temporary advantages and become the ultimate survivor. This game offers a challenging experience focused on combat and strategic upgrades.

**Highlights:** Weapon multipliers and customization, Boss conquest challenges, Angel Statue power-ups, Strategic combat gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drill Defense TD free?

Drill Defense TD is free to download, with no in-app purchases.

### Is Survive Factor free?

Survive Factor is free to download, with no in-app purchases.

### Do Drill Defense TD or Survive Factor have ads?

Drill Defense TD shows ads; Survive Factor does not.

### Which is updated more often, Drill Defense TD or Survive Factor?

Drill Defense TD ships an update every 2 days, and Survive Factor fortnightly. Most recently, Drill Defense TD was updated on May 17, 2026 and Survive Factor on September 10, 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.*