# Telmex vs CAASIM

The clearest difference is rating: Telmex at 4.6 against CAASIM's 3.3. Telmex also leads on ratings volume (6.1K vs 4) and update cadence (monthly vs every 2 months). CAASIM's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (12.0 vs 15.6). 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.

Telmex holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Telmex has 6.1K ratings behind it against 4, so its average is the more settled of the two.

Telmex ships an update monthly, CAASIM every 2 months. The most recent releases landed on October 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Telmex | CAASIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (6.1K ratings)](https://appshunter.io/ios/app/telmex/id1135440722/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/caasim/id1500820580/reviews) |
| Number of ratings | **6.1K** | 4 |
| Positive reviews | 9.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 158 MB | 20 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Teléfonos de México, S.A.B. de C.V.](https://appshunter.io/developer/903505961) | [Gobierno del Estado de Hidalgo](https://appshunter.io/developer/896802652) |

## What reviewers say

### Telmex

[App page](https://appshunter.io/ios/app/telmex/id1135440722)

Manage your Telmex services, including bill payments, internet speed upgrades, and mobile recharges. Access exclusive benefits like free Claro Video and antivirus, and customize your modem settings. Get 24/7 support through a dedicated chat.

**Highlights:** Consult, pay, and automate bill payments, Upgrade internet package speed, Recharge Telcel airtime, Activate free services (Claro Video, antivirus), Activate digital bill, Customize modem name and password, 24/7 chat support

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Good security
- ⚡ Fast recharge service

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔍 Difficult to navigate
- 🔒 Login issues
- ⏱️ Slow performance
- 💰 Overpriced services

**Reported bugs**

- Unable to register account
- Incorrect billing information
- Payments not processing correctly

**Requested features**

- Ability to view past bills
- Option to change account details remotely
- Improved app stability and reliability


### CAASIM

[App page](https://appshunter.io/ios/app/caasim/id1500820580)

Manage your water and sewage accounts, view bills, make payments, and find branch locations. Access services online and stay updated on your consumption history from home.

**Highlights:** Manage multiple accounts, View account statements, Online payments, Download bills and receipts, Locate branches, View consumption history, Emergency numbers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Telmex free?

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

### Is CAASIM free?

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

### Which has better reviews, Telmex or CAASIM?

Telmex is rated higher. Telmex averages 4.6 out of 5 from 6.1K ratings, while CAASIM averages 3.3 from 4 ratings.

### Do Telmex or CAASIM have ads?

Neither Telmex nor CAASIM shows ads.

### Which is updated more often, Telmex or CAASIM?

Telmex ships an update monthly, and CAASIM every 2 months. Most recently, Telmex was updated on October 14, 2026 and CAASIM on September 23, 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.*