# Into The Depth vs PROTOCOL

The clearest difference is iOS requirement: Into The Depth at 11.0 against PROTOCOL's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Into The Depth sells 6 one-off in-app purchases and PROTOCOL sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Into The Depth | PROTOCOL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/into-the-depth/id1596032826/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 890 MB | 259 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Flying Whale Studio LLC](https://appshunter.io/developer/1596032828) | [SungGwon Han](https://appshunter.io/developer/1117887913) |

## What reviewers say

### Into The Depth

[App page](https://appshunter.io/ios/app/into-the-depth/id1596032826)

Build an underground city to save humanity after an apocalypse. Manage resources, dig through different materials with various tools, and uncover a thrilling plot. Earn income even when offline and complete numerous challenges and quests.

**Highlights:** Build 30+ unique buildings, Dig with 7 different tools, Idle in-game income, Twisted main plot, Over 20 challenges, Over 100 quests

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 45 Bucks | $0.99 | one-time |
| 225 bucks | $4.99 | one-time |
| 500 Bucks | $9.99 | one-time |
| 1000 Bucks | $19.99 | one-time |
| 2800 Bucks | $49.99 | one-time |
| 6000 Bucks | $99.99 | one-time |


### PROTOCOL

[App page](https://appshunter.io/ios/app/protocol-zero-rift/id6740158945)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beginner Package 1 | $0.99 | one-time |
| Sale Package 3 | $1.99 | one-time |
| Sale Package 1 | $2.99 | one-time |
| Sale Package 2 | $4.99 | one-time |
| Beginner Package 2 | $4.99 | one-time |
| Remove Ad | $5.99 | one-time |
| Daily Special Mission Ticket | $7.99 | one-time |
| Mission Energy Booster (30 Days) | $9.99 | one-time |
| Stage Pass | $9.99 | one-time |
| Beginner Package 3 | $14.99 | one-time |


## Frequently asked questions

### Is Into The Depth free?

Into The Depth is free to download, with in-app purchases available.

### Is PROTOCOL free?

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

### Do Into The Depth or PROTOCOL have ads?

Both Into The Depth and PROTOCOL show ads.

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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.*