# RU REGIS. vs STOU SISA

The clearest difference is update cadence: STOU SISA at monthly against RU REGIS.'s every 6 months. RU REGIS.'s advantage is review sentiment (18% vs 6%). 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.

RU REGIS. ships an update every 6 months, STOU SISA monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | RU REGIS. | STOU SISA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ru-regis/id1453633675/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **18.0% of reviews** | 6.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | Free |
| Size | 37 MB | 28 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [RAMKHAMHAENG UNIVERSITY](https://appshunter.io/developer/1453633674) | [Sukhothai Thammathirat Open University](https://appshunter.io/developer/1370516064) |

## What reviewers say

### RU REGIS.

[App page](https://appshunter.io/ios/app/ru-regis/id1453633675)

This app helps Ramkhamhaeng University students register for courses. It allows users to view university news, search for subjects, check credits, and calculate registration fees for faster payment. You can also verify receipts after successful payment.

**Highlights:** View university news, Search for subjects and credits, Calculate registration fees, Verify payment receipts, Check exam schedules

**Features:** macOS Compatibility

**In-app purchases:** none


### STOU SISA

[App page](https://appshunter.io/ios/app/stou-sisa/id1540057844)

Access your academic history and results, register for courses, and make payments directly from your mobile device. Stay updated with public information, exam schedules, and your latest grades.

**Highlights:** View student history, Check academic results, Register for courses, Mobile payments, Receive public information, Access exam schedules

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RU REGIS. free?

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

### Is STOU SISA free?

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

### Do RU REGIS. or STOU SISA have ads?

Neither RU REGIS. nor STOU SISA shows ads.

### Which is updated more often, RU REGIS. or STOU SISA?

RU REGIS. ships an update every 6 months, and STOU SISA monthly. Most recently, RU REGIS. was updated on November 2, 2026 and STOU SISA on November 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.*