# Prolog vs Rhello

The clearest difference is update cadence: Prolog at every 5 days against Rhello's every 3 weeks. 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.

Prolog ships an update every 5 days, Rhello every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Prolog | Rhello |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 119 MB | 76 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zalf Sistemas LTDA](https://appshunter.io/developer/1707085086) | [Rhello](https://appshunter.io/developer/1812221665) |

## What reviewers say

### Prolog

[App page](https://appshunter.io/ios/app/prolog/id6470036075)

Optimize fleet operations and tire management with advanced technology. This system enhances productivity, reduces costs, and standardizes fleet operations, offering the most comprehensive tire management solution in Brazil.

**Highlights:** Fleet operation optimization, Tire management system, Increased productivity, Cost reduction, Standardized operations

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

**In-app purchases:** none


### Rhello

[App page](https://appshunter.io/ios/app/rhello/id6745434198)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prolog free?

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

### Is Rhello free?

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

### Do Prolog or Rhello have ads?

Neither Prolog nor Rhello shows ads.

### Which is updated more often, Prolog or Rhello?

Prolog ships an update every 5 days, and Rhello every 3 weeks. Most recently, Prolog was updated on October 24, 2026 and Rhello on October 24, 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.*