# S.E.C. Inc. vs Headshot Zombie Doomsday

The clearest difference is in-app purchases: S.E.C. Inc. at none against Headshot Zombie Doomsday's 10. Headshot Zombie Doomsday's advantage is update cadence (every 2 months vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Headshot Zombie Doomsday sells 10 one-off in-app purchases. S.E.C. Inc. asks for nothing beyond the download.

S.E.C. Inc. ships an update every 6 months, Headshot Zombie Doomsday every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | S.E.C. Inc. | Headshot Zombie Doomsday |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 186 MB | 210 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Chih-Jeng Teng](https://appshunter.io/developer/1008589150) | [LAYERLAB](https://appshunter.io/developer/1471588459) |

## What reviewers say

### S.E.C. Inc.

[App page](https://appshunter.io/ios/app/sec-inc/id1582192582)

Manage a monster-extermination company on the verge of bankruptcy. Accept commissions to resolve abnormal incidents and keep your business afloat.

**Highlights:** Company management, Monster extermination, Incident resolution, Agent management, Financial management

**Features:** macOS Compatibility

**In-app purchases:** none


### Headshot Zombie Doomsday

[App page](https://appshunter.io/ios/app/headshot-zombie-doomsday/id6762589999)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enhanced Bullet 1+1 Pack 400 | $1.99 | one-time |
| First Purchase Pack | $1.99 | one-time |
| 200 Enhanced Bullets | $1.99 | one-time |
| Enhanced Bullet 1+1 Pack 2000 | $9.99 | one-time |
| S-Rank + Promotion Pack | $19.99 | one-time |
| Enhanced Bullet 1+1 Pack 4000 | $19.99 | one-time |
| S-Rank Squad Pack | $39.99 | one-time |
| 6000 Enhanced Bullets | $49.99 | one-time |
| Enhanced Bullet 1+1 Pack 20000 | $99.99 | one-time |
| 12500 Enhanced Bullets | $99.99 | one-time |


## Frequently asked questions

### Is S.E.C. Inc. free?

S.E.C. Inc. is free to download, with no in-app purchases.

### Is Headshot Zombie Doomsday free?

Headshot Zombie Doomsday is free to download, with in-app purchases available.

### Do S.E.C. Inc. or Headshot Zombie Doomsday have ads?

Neither S.E.C. Inc. nor Headshot Zombie Doomsday shows ads.

### Which is updated more often, S.E.C. Inc. or Headshot Zombie Doomsday?

S.E.C. Inc. ships an update every 6 months, and Headshot Zombie Doomsday every 2 months. Most recently, S.E.C. Inc. was updated on October 24, 2026 and Headshot Zombie Doomsday on October 24, 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.*