# loomlock vs Underground Prepper

The clearest difference is in-app purchases: loomlock at none against Underground Prepper's 3. Underground Prepper's advantage is update cadence (every 2 days vs every 3 weeks) and device support (4 vs 1). On price and ads there is nothing between them.

Both are free to download. Underground Prepper sells 3 in-app purchases, starting at $9.99 per month. loomlock asks for nothing beyond the download.

loomlock ships an update every 3 weeks, Underground Prepper every 2 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | loomlock | Underground Prepper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/underground-prepper/id6768668180/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 48 MB | 93 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Loomlock Apps](https://appshunter.io/developer/1854726034) | [5th Studios, LLC](https://appshunter.io/developer/1896594590) |

## What reviewers say

### loomlock

[App page](https://appshunter.io/ios/app/loomlock/id6755596112)

**In-app purchases:** none


### Underground Prepper

[App page](https://appshunter.io/ios/app/underground-prepper/id6768668180)

This app helps you prepare for emergencies by tracking your family's supplies, readiness tier, and bugout bag contents. It offers detailed inventory management, offline functionality, and privacy-focused data storage.

**Highlights:** Family emergency preparedness tracking, Offline inventory management, Preparedness tier calculation, Bugout bag management per member, Detailed supply categorization, Exportable inventory reports, Built-in Bible reader

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $109.99 | per year |
| Lifetime Membership | $349.99 | one-time |


## Frequently asked questions

### Is loomlock free?

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

### Is Underground Prepper free?

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

### Do loomlock or Underground Prepper have ads?

Neither loomlock nor Underground Prepper shows ads.

### Which is updated more often, loomlock or Underground Prepper?

loomlock ships an update every 3 weeks, and Underground Prepper every 2 days. Most recently, loomlock was updated on October 30, 2026 and Underground Prepper on November 9, 2026.

---

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