# Ondea vs Grand Lac

The clearest difference is update cadence: Ondea at every 2 months against Grand Lac's every 11 months. Grand Lac's advantage is iOS requirement (9.3 vs 15.1). 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.

Ondea ships an update every 2 months, Grand Lac every 11 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Ondea | Grand Lac |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Size | 116 MB | 19 MB |
| Requires iOS | 15.1 | **9.3** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COMPAGNIE DE TRANSPORT DU LAC DU BOURGET-CTLB](https://appshunter.io/developer/1562811743) | [Airweb](https://appshunter.io/developer/361705570) |

## What reviewers say

### Ondea

[App page](https://appshunter.io/ios/app/ondea/id1022819776)

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

**In-app purchases:** none


### Grand Lac

[App page](https://appshunter.io/ios/app/grand-lac/id1276241352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ondea free?

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

### Is Grand Lac free?

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

### Do Ondea or Grand Lac have ads?

Neither Ondea nor Grand Lac shows ads.

### Which is updated more often, Ondea or Grand Lac?

Ondea ships an update every 2 months, and Grand Lac every 11 months. Most recently, Ondea was updated on October 26, 2026 and Grand Lac on November 3, 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.*