# SURVIVALOS vs PrepVault

The clearest difference is update cadence: PrepVault at fortnightly against SURVIVALOS's every 2 months. PrepVault also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SURVIVALOS sells 1 one-off in-app purchase and PrepVault sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SURVIVALOS ships an update every 2 months, PrepVault fortnightly. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | SURVIVALOS | PrepVault |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 24 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [wu zhaodong](https://appshunter.io/developer/1554727752) | [Pau Esmerats](https://appshunter.io/developer/1880454830) |

## What reviewers say

### SURVIVALOS

[App page](https://appshunter.io/ios/app/survivalos/id6759236432)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SURVIVALOS Pro | $6.99 | one-time |


### PrepVault

[App page](https://appshunter.io/ios/app/prepvault-survival-inventory/id6759740647)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tactical - Monthly | $1.99 | per month |
| Operational — Annual | $14.99 | per year |
| Bunker Mode — Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is SURVIVALOS free?

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

### Is PrepVault free?

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

### Do SURVIVALOS or PrepVault have ads?

Neither SURVIVALOS nor PrepVault shows ads.

### Which is updated more often, SURVIVALOS or PrepVault?

SURVIVALOS ships an update every 2 months, and PrepVault fortnightly. Most recently, SURVIVALOS was updated on September 10, 2026 and PrepVault on September 15, 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.*