# SEMS Secta9 vs Bluck

The clearest difference is in-app purchases: SEMS Secta9 at none against Bluck's 1. SEMS Secta9 also leads on iOS requirement (13.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Bluck sells 1 in-app purchase, starting at $1.99 per month. SEMS Secta9 asks for nothing beyond the download.

## The numbers

| Metric | SEMS Secta9 | Bluck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 11 days |
| Size | 12 MB | 120 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Secta9ine Co.,LTD.](https://appshunter.io/developer/519629650) | [Seungrae Cho](https://appshunter.io/developer/1620778100) |

## What reviewers say

### SEMS Secta9

[App page](https://appshunter.io/ios/app/sems-secta9/id6504171986)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bluck

[App page](https://appshunter.io/ios/app/bluck-challenge-tracker/id6740204211)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro plan | $1.99 | per month |


## Frequently asked questions

### Is SEMS Secta9 free?

SEMS Secta9 is free to download, with no in-app purchases.

### Is Bluck free?

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

### Do SEMS Secta9 or Bluck have ads?

Neither SEMS Secta9 nor Bluck shows 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.*