# SiiAPP vs Altos Pack

The clearest difference is update cadence: SiiAPP at fortnightly against Altos Pack's every 4 months. 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.

SiiAPP ships an update fortnightly, Altos Pack every 4 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SiiAPP | Altos Pack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/siiapp/id1488201798/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 12.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free | — |
| Size | 61 MB | 35 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Mendez Hernandez](https://appshunter.io/developer/1488201797) | [Miguel ngel Aguilar Bolaos](https://appshunter.io/developer/1568301361) |

## What reviewers say

### SiiAPP

[App page](https://appshunter.io/ios/app/siiapp/id1488201798)

Easily access class schedules, teacher details, and professor reviews. View past academic cycles and customize your timetable. Offline access available for loaded information.

**Highlights:** Classroom and teacher lookup, Professor reviews and ratings, Customizable timetable design, Past academic cycle schedules, Offline access to data

**Features:** macOS Compatibility

**In-app purchases:** none


### Altos Pack

[App page](https://appshunter.io/ios/app/altos-pack/id1544013410)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SiiAPP free?

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

### Is Altos Pack free?

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

### Do SiiAPP or Altos Pack have ads?

Neither SiiAPP nor Altos Pack shows ads.

### Which is updated more often, SiiAPP or Altos Pack?

SiiAPP ships an update fortnightly, and Altos Pack every 4 months. Most recently, SiiAPP was updated on October 14, 2026 and Altos Pack on October 3, 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.*