# Tenths vs Underground Prepper

The clearest difference is update cadence: Underground Prepper at every 2 days against Tenths's every 3 weeks. Tenths's advantage is ratings volume (4 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Tenths sells 4 in-app purchases, starting at $8.99 per month and Underground Prepper sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Tenths against 5.0 for Underground Prepper. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Tenths ships an update every 3 weeks, Underground Prepper every 2 days. The most recent releases landed on October 6, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Tenths | Underground Prepper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/tenths-billable-time-tracker/id1608993411/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/underground-prepper/id6768668180/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 93 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Mela Roo, Inc.](https://appshunter.io/developer/1608993413) | [5th Studios, LLC](https://appshunter.io/developer/1896594590) |

## What reviewers say

### Tenths

[App page](https://appshunter.io/ios/app/tenths-billable-time-tracker/id1608993411)

This app helps professionals accurately track billable time in 0.1 increments. It offers secure, encrypted timekeeping with smart conversion, voice dictation, and seamless invoice generation. Designed for attorneys and others who need precise billing, it ensures no billable minute is lost.

**Highlights:** Fully encrypted and private time logs, Smart decimal increment conversion, Voice-to-text dictation for entries, Dynamic Island and Live Activities integration, Anticipation Mode for future entries, Ethical rolling bundles for accurate billing, Seamless PDF, XLSX, and CSV export

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tenths Plus | $8.99 | per month |
| Tenths + AI Billing Assistant | $13.49 | per month |
| Tenths Plus - Yearly | $74.99 | per year |
| Tenths AI - Yearly | $120.99 | per year |


### Underground Prepper

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

This app helps you meticulously track your family's emergency supplies and preparedness levels. It organizes inventory, manages household member needs, and provides readiness tiers for various disaster scenarios. All data is stored locally for offline access and privacy.

**Highlights:** Family emergency preparedness tracking, Detailed inventory management, Household member profiles, Bugout bag planning, Offline functionality, Exportable reports, Preparedness checklists

**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 Tenths free?

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

### Is Underground Prepper free?

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

### Which has better reviews, Tenths or Underground Prepper?

Tenths and Underground Prepper are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Tenths or Underground Prepper have ads?

Neither Tenths nor Underground Prepper shows ads.

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

Tenths ships an update every 3 weeks, and Underground Prepper every 2 days. Most recently, Tenths was updated on October 6, 2026 and Underground Prepper on September 25, 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.*