# CenTelum vs Collapse Survivor

The clearest difference is in-app purchases: CenTelum at none against Collapse Survivor's 10. CenTelum also leads on update cadence (every 4 days vs every 9 days) and iOS requirement (14.1 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Collapse Survivor sells 10 in-app purchases, starting at $0.99 per month. CenTelum asks for nothing beyond the download.

CenTelum ships an update every 4 days, Collapse Survivor every 9 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CenTelum | Collapse Survivor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (24 ratings)](https://appshunter.io/ios/app/collapse-survivor/id6477384438/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 89 MB |
| Requires iOS | **14.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Cenango Financial, LLC](https://appshunter.io/developer/626142722) | [Collapse Survivor](https://appshunter.io/developer/1729159313) |

## What reviewers say

### CenTelum

[App page](https://appshunter.io/ios/app/centelum/id6446116286)

**Features:** macOS Compatibility

**In-app purchases:** none


### Collapse Survivor

[App page](https://appshunter.io/ios/app/collapse-survivor/id6477384438)

This app provides essential offline information and real-time alerts for emergencies. Access a vast offline database of knowledge and stay informed about potential threats to ensure you are prepared for any disaster.

**Highlights:** Offline Wikipedia access, Real-time threat alerts, Curated preparedness news, Emergency information database, Survival strategies

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 month free trial) | $0.99 | per month |
| Basic (Monthly) | $1.99 | per month |
| Premium Monthly | $4.99 | per month |
| Basic (Yearly) | $9.99 | per year |
| Premium (Monthly) | $9.99 | per month |
| Premium+ Monthly  (Monthly) | $29.99 | per month |
| Premium Yearly | $49.99 | per year |
| Premium Yearly | $99.99 | per year |
| Premium+ Yearly | $149.00 | per year |
| Premium+ Yearly Subscription | $304.99 | per year |


## Frequently asked questions

### Is CenTelum free?

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

### Is Collapse Survivor free?

Collapse Survivor is free to download, with in-app purchases available.

### Do CenTelum or Collapse Survivor have ads?

Neither CenTelum nor Collapse Survivor shows ads.

### Which is updated more often, CenTelum or Collapse Survivor?

CenTelum ships an update every 4 days, and Collapse Survivor every 9 days. Most recently, CenTelum was updated on October 30, 2026 and Collapse Survivor on October 27, 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.*