# WTCO vs Primesim

The clearest difference is ads: WTCO at none against Primesim's shown. Primesim's advantage is update cadence (fortnightly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WTCO ships an update monthly, Primesim fortnightly. Both last shipped on October 11, 2026.

## The numbers

| Metric | WTCO | Primesim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 95 MB | 68 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [WATER TRANSMISSION AND TECHNOLOGIES COMPANY](https://appshunter.io/developer/1676931703) | [PRIME FINANSAL DANISMANLIK TELEKOM VE TEKNOLOJI SANAYI TICARET ANONIM SIRKETI](https://appshunter.io/developer/1865499495) |

## What reviewers say

### WTCO

[App page](https://appshunter.io/ios/app/wtco/id6446695139)

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

**In-app purchases:** none


### Primesim

[App page](https://appshunter.io/ios/app/primesim/id6757233838)

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

**In-app purchases:** none


## Frequently asked questions

### Is WTCO free?

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

### Is Primesim free?

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

### Do WTCO or Primesim have ads?

Primesim shows ads; WTCO does not.

### Which is updated more often, WTCO or Primesim?

WTCO ships an update monthly, and Primesim fortnightly. Most recently, WTCO was updated on October 11, 2026 and Primesim on October 11, 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.*