# CAT eService vs Revo.ai

The clearest difference is update cadence: Revo.ai at weekly against CAT eService's every 6 months. CAT eService's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CAT eService ships an update every 6 months, Revo.ai weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CAT eService | Revo.ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/revoai/id6744486932/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free | Free |
| Size | 11 MB | 50 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NATIONAL TELECOM PUBLIC COMPANY LIMITED](https://appshunter.io/developer/852828800) | [Iteration X](https://appshunter.io/developer/1807893744) |

## What reviewers say

### CAT eService

[App page](https://appshunter.io/ios/app/cat-eservice/id1035684192)

Access CAT telecom services conveniently. Manage your profile, view usage history, make online payments, and add or remove services. Stay updated with news and promotions, and easily contact customer support.

**Highlights:** Profile management, Usage history tracking, Online payment processing, Service addition/removal, News and promotions updates, Contact and support options

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

**In-app purchases:** none


### Revo.ai

[App page](https://appshunter.io/ios/app/revoai/id6744486932)

This AI teammate connects to your team's tools to provide context-aware answers and insights. It helps you replay key moments, find documents instantly, and switch between different AI models for various tasks.

**Highlights:** Context-aware AI answers, Meeting summaries and action items, Instant document search, Switchable LLMs for tasks, Connects to Slack, Jira, Notion, etc.

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

**In-app purchases:** none


## Frequently asked questions

### Is CAT eService free?

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

### Is Revo.ai free?

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

### Do CAT eService or Revo.ai have ads?

Neither CAT eService nor Revo.ai shows ads.

### Which is updated more often, CAT eService or Revo.ai?

CAT eService ships an update every 6 months, and Revo.ai weekly. Most recently, CAT eService was updated on November 2, 2026 and Revo.ai on October 30, 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.*