# OASA vs Santorini Bus

The clearest difference is in-app purchases: OASA at none against Santorini Bus's 3. OASA also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Santorini Bus sells 3 one-off in-app purchases. OASA asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OASA | Santorini Bus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/oasa/id1104863353/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 13.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | — |
| Size | 35 MB | 83 MB |
| Requires iOS | 17.5 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Transport Telematics S.A.](https://appshunter.io/developer/1104863352) | [Olav Løite](https://appshunter.io/developer/6793372256) |

## 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


### Santorini Bus

[App page](https://appshunter.io/ios/app/santorini-bus/id6793372254)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trip Pass 7 Days | $1.99 | one-time |
| Trip Pass 30 Days | $3.99 | one-time |
| Lifetime Pass | $8.99 | one-time |


## Frequently asked questions

### Is OASA free?

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

### Is Santorini Bus free?

Santorini Bus is free to download, with in-app purchases available.

### Do OASA or Santorini Bus have ads?

Neither OASA nor Santorini Bus shows ads.

### Which is updated more often, OASA or Santorini Bus?

OASA ships an update every 2 weeks, and Santorini Bus every 2 weeks. Most recently, OASA was updated on October 23, 2026 and Santorini Bus 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.*