# ICAO Reader vs OID Reader

The clearest difference is update cadence: OID Reader at every 6 weeks against ICAO Reader's every 5 months. 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.

ICAO Reader ships an update every 5 months, OID Reader every 6 weeks. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ICAO Reader | OID Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Size | 24 MB | 23 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Scytales AB](https://appshunter.io/developer/1526508105) | [ORCHESTRATOR SOFTWARE SOLUTIONS S.R.L](https://appshunter.io/developer/1842120341) |

## What reviewers say

### ICAO Reader

[App page](https://appshunter.io/ios/app/icao-reader/id1566196586)

**In-app purchases:** none


### OID Reader

[App page](https://appshunter.io/ios/app/oid-reader/id6756486168)

**In-app purchases:** none


## Frequently asked questions

### Is ICAO Reader free?

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

### Is OID Reader free?

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

### Do ICAO Reader or OID Reader have ads?

Neither ICAO Reader nor OID Reader shows ads.

### Which is updated more often, ICAO Reader or OID Reader?

ICAO Reader ships an update every 5 months, and OID Reader every 6 weeks. Most recently, ICAO Reader was updated on September 30, 2026 and OID Reader on October 14, 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.*