# Rail Defence vs Do [Not] Forget

The clearest difference is in-app purchases: Do [Not] Forget at none against Rail Defence's 18. Do [Not] Forget also leads on ads (none vs shown) and update cadence (every 3 days vs fortnightly). Rail Defence's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Rail Defence sells 18 one-off in-app purchases. Do [Not] Forget asks for nothing beyond the download.

Rail Defence ships an update fortnightly, Do [Not] Forget every 3 days. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Rail Defence | Do [Not] Forget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (1.1K ratings)](https://appshunter.io/ios/app/rail-defence/id6739333810/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 1.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 156 MB | 2 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) | [Ilias Rafailidis](https://appshunter.io/developer/1874647979) |

## What reviewers say

### Rail Defence

[App page](https://appshunter.io/ios/app/rail-defence/id6739333810)

Defend your castle from waves of enemies by strategically placing and upgrading weapons on a circular railway. Utilize special powers and enhanced armaments to repel increasingly formidable foes and protect your stronghold.

**Highlights:** Circular railway defense, Acquire new weapons, Upgrade weapons, Strengthen defenses, Special powers

**Features:** macOS Compatibility

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cash kickstart pack | $1.99 | one-time |
| 10 Tickets | $1.99 | one-time |
| Manager | $2.99 | one-time |
| Money Fountain Pack | $2.99 | one-time |
| Engineer | $2.99 | one-time |
| 20 Tickets | $2.99 | one-time |
| Big Deal Pack | $3.99 | one-time |
| Financier | $3.99 | one-time |
| Royal Treasury Pack | $4.99 | one-time |
| 50 Tickets | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| Bundle | $5.99 | one-time |
| Treasury Trove Pack | $5.99 | one-time |
| 30 Tickets and No Ads | $5.99 | one-time |
| Mega Bundle | $7.99 | one-time |
| Big Vault Pack | $8.99 | one-time |
| Ultra Bundle | $10.99 | one-time |
| Big Chest Treasure | $11.99 | one-time |

**What reviewers like**

- 🚀 Hack

**What reviewers complain about**

- 🐛 Glitches
- 💸 Obscene amount of Ads
- 💸 Advertisement Simulator
- 💸 Ads Ads & more Ads
- 💸 Ads

**Reported bugs**

- The bomb does not work after a few seconds
- Randomly the weapons won't work
- The crossbow stops working after a while

**Requested features**

- More levels
- Different zombies
- More upgrades


### Do [Not] Forget

[App page](https://appshunter.io/ios/app/do-not-forget/id6759411664)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rail Defence free?

Rail Defence is free to download, with in-app purchases available.

### Is Do [Not] Forget free?

Do [Not] Forget is free to download, with no in-app purchases.

### Do Rail Defence or Do [Not] Forget have ads?

Rail Defence shows ads; Do [Not] Forget does not.

### Which is updated more often, Rail Defence or Do [Not] Forget?

Rail Defence ships an update fortnightly, and Do [Not] Forget every 3 days. Most recently, Rail Defence was updated on October 21, 2026 and Do [Not] Forget on October 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.*