# TRAMO ONCE vs BusNav Pro

The clearest difference is in-app purchases: TRAMO ONCE at none against BusNav Pro's 2. TRAMO ONCE also leads on device support (3 vs 1) and iOS requirement (14.0 vs 16.0). BusNav Pro's advantage is update cadence (weekly vs monthly). On price and ads there is nothing between them.

Both are free to download. BusNav Pro sells 2 in-app purchases, starting at $2.99 per month. TRAMO ONCE asks for nothing beyond the download.

TRAMO ONCE ships an update monthly, BusNav Pro weekly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TRAMO ONCE | BusNav Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 66 MB | 104 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ONCE](https://appshunter.io/developer/504522747) | [Dolores Gonzalez Diaz](https://appshunter.io/developer/1889122606) |

## What reviewers say

### TRAMO ONCE

[App page](https://appshunter.io/ios/app/tramo-once/id6743083358)

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

**In-app purchases:** none


### BusNav Pro

[App page](https://appshunter.io/ios/app/busnav-pro/id6761625397)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mensual | $2.99 | per month |
| BusNav Pro Anual | $22.99 | per year |


## Frequently asked questions

### Is TRAMO ONCE free?

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

### Is BusNav Pro free?

BusNav Pro is free to download, with in-app purchases available.

### Do TRAMO ONCE or BusNav Pro have ads?

Neither TRAMO ONCE nor BusNav Pro shows ads.

### Which is updated more often, TRAMO ONCE or BusNav Pro?

TRAMO ONCE ships an update monthly, and BusNav Pro weekly. Most recently, TRAMO ONCE was updated on October 2, 2026 and BusNav Pro on October 7, 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.*