# IIT CA EndUser vs ProstoService 2.0

The clearest difference is update cadence: ProstoService 2.0 at daily against IIT CA EndUser's every 7 months. IIT CA EndUser's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

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

IIT CA EndUser ships an update every 7 months, ProstoService 2.0 daily. The most recent releases landed on October 18, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | IIT CA EndUser | ProstoService 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 40 MB | 65 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [IIT, JSC](https://appshunter.io/developer/1447134477) | [Prostopay LLC](https://appshunter.io/developer/1377010485) |

## What reviewers say

### IIT CA EndUser

[App page](https://appshunter.io/ios/app/iit-ca-enduser/id1447134478)

This application allows users to manage private keys and certificates for digital signatures. It enables the creation and verification of signatures to ensure data protection and authenticity.

**Highlights:** Private key management, Certificate control, Signature creation, Signature verification, Data protection

**Features:** macOS Compatibility

**In-app purchases:** none


### ProstoService 2.0

[App page](https://appshunter.io/ios/app/prostoservice-20/id6812404151)

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

**In-app purchases:** none


## Frequently asked questions

### Is IIT CA EndUser free?

IIT CA EndUser is free to download, with no in-app purchases.

### Is ProstoService 2.0 free?

ProstoService 2.0 is free to download, with no in-app purchases.

### Do IIT CA EndUser or ProstoService 2.0 have ads?

Neither IIT CA EndUser nor ProstoService 2.0 shows ads.

### Which is updated more often, IIT CA EndUser or ProstoService 2.0?

IIT CA EndUser ships an update every 7 months, and ProstoService 2.0 daily. Most recently, IIT CA EndUser was updated on October 18, 2026 and ProstoService 2.0 on October 29, 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.*