# RTB LOC.id vs B

The clearest difference is review sentiment: B at 100% against RTB LOC.id's 38%. B also leads on update cadence (every 6 days vs every 3 months). RTB LOC.id's advantage is in-app purchases (none vs 6). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. B sells 6 in-app purchases, starting at $2.99 per 7 days. RTB LOC.id asks for nothing beyond the download.

RTB LOC.id ships an update every 3 months, B every 6 days. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | RTB LOC.id | B |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RTB Elektronik](https://appshunter.io/developer/1033533477) | [JORG BALTERS](https://appshunter.io/developer/1724350899) |

## 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


### B

[App page](https://appshunter.io/ios/app/b-assistents/id6475626176)

This app uses image analysis to describe photos and read text, empowering individuals with visual impairments. It offers a bridge to the sighted world, enhancing independence for everyday tasks like reading signs and menus.

**Highlights:** Image recognition and description, Text reading for the visually impaired, Enhanced independence, Computer vision technology, Speech synthesis, AI and machine learning integration

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimitierten Zugang 1 Woche | $2.99 | per 7 days |
| Unlimited access 1/2 year | $59.99 | per 6 months |
| Unlimited access for one year | $89.99 | per year |
| 20 Token | $1.99 | one-time |
| 50 Token | $3.99 | one-time |
| 100 Token | $8.99 | one-time |


## Frequently asked questions

### Is RTB LOC.id free?

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

### Is B free?

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

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

Neither RTB LOC.id nor B shows ads.

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

RTB LOC.id ships an update every 3 months, and B every 6 days. Most recently, RTB LOC.id was updated on October 17, 2026 and B on October 9, 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.*