# OASA vs Co

The clearest difference is iOS requirement: Co at 14.0 against OASA's 17.5. On price, update cadence, ads and in-app purchases 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, Co every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OASA | Co |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free | — |
| Size | 35 MB | 64 MB |
| Requires iOS | 17.5 | **14.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Advanced Transport Telematics S.A.](https://appshunter.io/developer/1104863352) | [KallosSoft](https://appshunter.io/developer/1599612635) |

## 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


### Co

[App page](https://appshunter.io/ios/app/co-fi-map-work-and-coffee/id6526489193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OASA free?

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

### Is Co free?

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

### Do OASA or Co have ads?

Neither OASA nor Co shows ads.

### Which is updated more often, OASA or Co?

OASA ships an update every 2 weeks, and Co every 3 weeks. Most recently, OASA was updated on October 23, 2026 and Co 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.*