# OASA vs Delphi App

The clearest difference is update cadence: OASA at every 2 weeks against Delphi App's every 5 weeks. Delphi App's advantage is iOS requirement (13.0 vs 17.5). 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.

OASA ships an update every 2 weeks, Delphi App every 5 weeks. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | OASA | Delphi App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/oasa/id1104863353/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 13.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 35 MB | 123 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Transport Telematics S.A.](https://appshunter.io/developer/1104863352) | [Aristides Batis](https://appshunter.io/developer/1083440045) |

## What reviewers say

### OASA

[App page](https://appshunter.io/ios/app/oasa/id1104863353)

Get real-time bus information for Athens, including routes, schedules, and nearby stops. Navigate to stops using your preferred map app and receive important news updates via push notifications.

**Highlights:** Real-time bus tracking, Nearby stop finder, Route and schedule viewing, Push notifications for news, Two-language support, Favorite lines and stops, Apple Watch integration

**Features:** Apple Watch app

**In-app purchases:** none


### Delphi App

[App page](https://appshunter.io/ios/app/delphi-app/id6466650003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OASA free?

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

### Is Delphi App free?

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

### Do OASA or Delphi App have ads?

Neither OASA nor Delphi App shows ads.

### Which is updated more often, OASA or Delphi App?

OASA ships an update every 2 weeks, and Delphi App every 5 weeks. Most recently, OASA was updated on September 18, 2026 and Delphi App on September 9, 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.*