# C vs ESPRO

The clearest difference is update cadence: C at fortnightly against ESPRO's every 5 weeks. C also leads on iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

C ships an update fortnightly, ESPRO every 5 weeks. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | C | ESPRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 117 MB | 74 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Comforta Company Limited](https://appshunter.io/developer/1644309751) | [ESPRO NOODOE COMPANY LIMITED](https://appshunter.io/developer/1779225795) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-curity/id1644309749)

**Features:** macOS Compatibility

**In-app purchases:** none


### ESPRO

[App page](https://appshunter.io/ios/app/espro/id6738077091)

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

**In-app purchases:** none


## Frequently asked questions

### Is C free?

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

### Is ESPRO free?

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

### Do C or ESPRO have ads?

Neither C nor ESPRO shows ads.

### Which is updated more often, C or ESPRO?

C ships an update fortnightly, and ESPRO every 5 weeks. Most recently, C was updated on September 29, 2026 and ESPRO on October 3, 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.*