# STS Learning Portal vs OPTIMIZE IAS

The clearest difference is in-app purchases: STS Learning Portal at none against OPTIMIZE IAS's 3. STS Learning Portal also leads on iOS requirement (12.4 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. OPTIMIZE IAS sells 3 one-off in-app purchases. STS Learning Portal asks for nothing beyond the download.

## The numbers

| Metric | STS Learning Portal | OPTIMIZE IAS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 15 months |
| Size | 310 MB | 75 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shivaranjan Kumar](https://appshunter.io/developer/1781870617) | [Learnyst Insight Private Limited](https://appshunter.io/developer/1114258009) |

## What reviewers say

### STS Learning Portal

[App page](https://appshunter.io/ios/app/sts-learning-portal/id6738693319)

**Features:** macOS Compatibility

**In-app purchases:** none


### OPTIMIZE IAS

[App page](https://appshunter.io/ios/app/optimize-ias/id6745391661)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prelims PYQ Mastery | $39.99 | one-time |
| OPTIMA (Lite) 2025 Prelims | $49.99 | one-time |
| LAQSHYA2026 PRELIMS MENTORSHIP | $129.99 | one-time |


## Frequently asked questions

### Is STS Learning Portal free?

STS Learning Portal is free to download, with no in-app purchases.

### Is OPTIMIZE IAS free?

OPTIMIZE IAS is free to download, with in-app purchases available.

### Do STS Learning Portal or OPTIMIZE IAS have ads?

Neither STS Learning Portal nor OPTIMIZE IAS shows ads.

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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.*