# RTB LOC.id vs Zeitro

The clearest difference is price: RTB LOC.id at Free against Zeitro's $2.99. RTB LOC.id also leads on iOS requirement (15.0 vs 17.0). Zeitro's advantage is update cadence (every 4 days vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

RTB LOC.id is free to download; Zeitro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RTB LOC.id ships an update every 3 months, Zeitro every 4 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | RTB LOC.id | Zeitro |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 39 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [RTB Elektronik](https://appshunter.io/developer/1033533477) | [Guido Scharmer-Choi](https://appshunter.io/developer/1864564012) |

## What reviewers say

### RTB LOC.id

[App page](https://appshunter.io/ios/app/rtb-locid/id1146809656)

This mobile utility enhances daily accessibility by automatically activating acoustic signals at public transport and traffic systems. It helps users navigate their environment more easily by providing audio cues for accessibility features.

**Highlights:** Automatic acoustic signal activation, Traffic light assistance, Public transport integration, Everyday accessibility improvement, Proximity-based activation

**Features:** Vision Pro support

**In-app purchases:** none


### Zeitro

[App page](https://appshunter.io/ios/app/zeitro/id6757105759)

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

**In-app purchases:** none


## Frequently asked questions

### Is RTB LOC.id free?

RTB LOC.id is free to download, with no in-app purchases.

### Is Zeitro free?

Zeitro costs $2.99, with no in-app purchases.

### Do RTB LOC.id or Zeitro have ads?

Neither RTB LOC.id nor Zeitro shows ads.

### Which is updated more often, RTB LOC.id or Zeitro?

RTB LOC.id ships an update every 3 months, and Zeitro every 4 days. Most recently, RTB LOC.id was updated on October 17, 2026 and Zeitro on October 14, 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.*