# Olerex vs Chi Estonia

Olerex and Chi Estonia are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Olerex ships an update weekly, Chi Estonia every 8 days. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Olerex | Chi Estonia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Size | 45 MB | 69 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Olerex AS](https://appshunter.io/developer/1368365328) | [Pospro OU](https://appshunter.io/developer/1737995387) |

## What reviewers say

### Olerex

[App page](https://appshunter.io/ios/app/olerex/id1368365329)

**Features:** Vision Pro support

**In-app purchases:** none


### Chi Estonia

[App page](https://appshunter.io/ios/app/chi-estonia/id6805434366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Olerex free?

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

### Is Chi Estonia free?

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

### Do Olerex or Chi Estonia have ads?

Neither Olerex nor Chi Estonia shows ads.

### Which is updated more often, Olerex or Chi Estonia?

Olerex ships an update weekly, and Chi Estonia every 8 days. Most recently, Olerex was updated on November 13, 2026 and Chi Estonia on October 31, 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.*