# Mini Space Commando(Semi Idle) vs Underground Story

The clearest difference is review sentiment: Underground Story at 100% against Mini Space Commando(Semi Idle)'s 61%. Mini Space Commando(Semi Idle)'s advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Mini Space Commando(Semi Idle) sells 10 one-off in-app purchases and Underground Story sells 25 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mini Space Commando(Semi Idle) ships an update weekly, Underground Story every 5 days. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Mini Space Commando(Semi Idle) | Underground Story |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/mini-space-commandosemi-idle/id1502736505/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 60.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 520 MB | 186 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Chan ik Kwon](https://appshunter.io/developer/1502736504) | [lee sanghyun](https://appshunter.io/developer/591080822) |

## What reviewers say

### Mini Space Commando(Semi Idle)

[App page](https://appshunter.io/ios/app/mini-space-commandosemi-idle/id1502736505)

Command a space marine in this idle game, fighting enemies and collecting resources to expand your influence across the universe. Periodically save your progress to the cloud to prevent data loss upon app deletion.

**Highlights:** Fight enemies, Collect resources, Grow space marine, Conquer universe, Cloud saving

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weapon parts | $2.99 | one-time |
| Crystal Purifier | $3.99 | one-time |
| Recoil Control Glove | $5.99 | one-time |
| Cosmic Extractor | $7.99 | one-time |
| Spawn Speed Up | $8.99 | one-time |
| Mining Sword | $11.99 | one-time |
| Remove AD | $11.99 | one-time |
| Mystic Stone Extractor | $12.99 | one-time |
| Ruby Extractor | $12.99 | one-time |
| Titanium 40000EA | $64.99 | one-time |


### Underground Story

[App page](https://appshunter.io/ios/app/underground-storyidlesurvival/id1546968607)

Embark on a story-driven idle adventure in a pixelated world where money dictates survival. Fight for freedom, uncover secrets, and manage fatigue in a labor camp. Explore hidden locations and interact with characters to escape.

**Highlights:** Story-driven idle gameplay, Pixel art style with animations, Manage physical and mental fatigue, Discover hidden clues and items, Interact with colorful characters, Mini-games and legendary items

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

**In-app purchases (25)**

| Purchase | Price | Billing |
| --- | --- | --- |
| blood diamond x100 | $0.99 | one-time |
| army cap | $1.99 | one-time |
| special force cap | $3.99 | one-time |
| Auto Work Package | $3.99 | one-time |
| reopen ads remove | $4.99 | one-time |
| heart+2 (Sewers) | $4.99 | one-time |
| heart +3 (in Sewers) | $4.99 | one-time |
| heart +5 (in Sewers) | $4.99 | one-time |
| helm | $5.99 | one-time |
| minigame life+2 | $5.99 | one-time |
| block start4 | $5.99 | one-time |
| Block Destroy Bonus | $5.99 | one-time |
| Super Power | $6.99 | one-time |
| Termite Fry | $9.99 | one-time |
| tear diamond x100 | $9.99 | one-time |
| Speed up package | $9.99 | one-time |
| green present box(x10) | $9.99 | one-time |
| blood diamond x2000 | $14.99 | one-time |
| Red Ant Juice | $15.99 | one-time |
| Partnership Pledge | $19.99 | one-time |
| Perfect Free Pass | $19.99 | one-time |
| vending machine hacking | $19.99 | one-time |
| Santa present x20 | $19.99 | one-time |
| Magazine Bribes | $29.99 | one-time |
| blood diamond x10000 | $49.99 | one-time |


## Frequently asked questions

### Is Mini Space Commando(Semi Idle) free?

Mini Space Commando(Semi Idle) is free to download, with in-app purchases available.

### Is Underground Story free?

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

### Do Mini Space Commando(Semi Idle) or Underground Story have ads?

Underground Story shows ads; Mini Space Commando(Semi Idle) does not.

### Which is updated more often, Mini Space Commando(Semi Idle) or Underground Story?

Mini Space Commando(Semi Idle) ships an update weekly, and Underground Story every 5 days. Most recently, Mini Space Commando(Semi Idle) was updated on October 15, 2026 and Underground Story on October 4, 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.*