# ČK CIRED vs OTE IMP Sandbox

The clearest difference is update cadence: ČK CIRED at weekly against OTE IMP Sandbox's every 12 months. OTE IMP Sandbox's advantage is iOS requirement (11.0 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.

ČK CIRED ships an update weekly, OTE IMP Sandbox every 12 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ČK CIRED | OTE IMP Sandbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 12 months |
| Size | 34 MB | 15 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EGC - EnerGoConsult ČB s.r.o.](https://appshunter.io/developer/1035582607) | [OTE, a. s.](https://appshunter.io/developer/1284658923) |

## What reviewers say

### ČK CIRED

[App page](https://appshunter.io/ios/app/ck-cired/id1035582608)

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

**In-app purchases:** none


### OTE IMP Sandbox

[App page](https://appshunter.io/ios/app/ote-imp-sandbox/id1536730948)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ČK CIRED free?

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

### Is OTE IMP Sandbox free?

OTE IMP Sandbox is free to download, with no in-app purchases.

### Do ČK CIRED or OTE IMP Sandbox have ads?

Neither ČK CIRED nor OTE IMP Sandbox shows ads.

### Which is updated more often, ČK CIRED or OTE IMP Sandbox?

ČK CIRED ships an update weekly, and OTE IMP Sandbox every 12 months. Most recently, ČK CIRED was updated on October 29, 2026 and OTE IMP Sandbox on October 25, 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.*