# PROTOCOL vs Hunter Tower

The clearest difference is update cadence: PROTOCOL at every 3 days against Hunter Tower's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PROTOCOL sells 10 one-off in-app purchases and Hunter Tower sells 19 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PROTOCOL ships an update every 3 days, Hunter Tower weekly. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PROTOCOL | Hunter Tower |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 258 MB | 356 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 12+ |
| Developer | [SungGwon Han](https://appshunter.io/developer/1117887913) | [R Games](https://appshunter.io/developer/6791432042) |

## What reviewers say

### 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 |


### Hunter Tower

[App page](https://appshunter.io/ios/app/hunter-tower-offline-idle-rpg/id6791432040)

This idle RPG lets you automatically climb a tower, battling monsters and earning gold. Upgrade your hunters, collect powerful relics, and use a Successor to aid your progress. Prestige to restart with permanent boosts for faster, stronger runs.

**Highlights:** Automatic tower climbing and monster battles, Hunter leveling and promotion system, Successor skills for combat advantage, Relic collection and upgrading, Prestige system for permanent boosts, Offline rewards and daily bonuses

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

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Banner Ads | $1.99 | one-time |
| First Purchase Pack | $2.29 | one-time |
| Chuseok Gift Set | $2.29 | one-time |
| Offline Expansion | $2.99 | one-time |
| Time Reduction Tickets ×6 | $3.49 | one-time |
| Spirit | $4.99 | one-time |
| Songpyeon Booster | $5.49 | one-time |
| Legend Guarantee Box | $5.99 | one-time |
| Legend Choice Box | $7.99 | one-time |
| Remove All Ads | $8.99 | one-time |
| Elixir Booster | $8.99 | one-time |
| Remove Ads Package | $9.99 | one-time |
| Angel | $9.99 | one-time |
| Time Reduction Tickets ×30 | $11.99 | one-time |
| Full Moon Package | $11.99 | one-time |
| Starter Package | $16.99 | one-time |
| Time Reduction Tickets ×100 | $28.99 | one-time |
| Harvest Package | $28.99 | one-time |
| Automation Relic Growth Pack | $42.99 | one-time |


## Frequently asked questions

### Is PROTOCOL free?

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

### Is Hunter Tower free?

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

### Do PROTOCOL or Hunter Tower have ads?

Both PROTOCOL and Hunter Tower show ads.

### Which is updated more often, PROTOCOL or Hunter Tower?

PROTOCOL ships an update every 3 days, and Hunter Tower weekly. Most recently, PROTOCOL was updated on October 19, 2026 and Hunter Tower on October 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.*