# ODC Tutor vs SWAAC ELSO APP

The clearest difference is update cadence: SWAAC ELSO APP at every 8 days against ODC Tutor's every 2 months. ODC Tutor's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

ODC Tutor ships an update every 2 months, SWAAC ELSO APP every 8 days. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ODC Tutor | SWAAC ELSO APP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 8 MB | 70 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Satish Deopujari](https://appshunter.io/developer/1180072702) | [Design Master Co.](https://appshunter.io/developer/433614268) |

## What reviewers say

### ODC Tutor

[App page](https://appshunter.io/ios/app/odc-tutor/id993661003)

Visualize and understand the oxygen-hemoglobin dissociation curve. This medical tool shows the relationship between oxygen partial pressure and hemoglobin saturation, highlighting factors that shift the curve and critical care points.

**Highlights:** Visualize oxygen-hemoglobin dissociation curve, Shift curve right/left to show affinity changes, Display causes for curve shifts, Show arterial and venous saturation, Indicate P50 value, Highlight ICU point for critical care monitoring

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

**In-app purchases:** none


### SWAAC ELSO APP

[App page](https://appshunter.io/ios/app/swaac-elso-app/id6472639432)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ODC Tutor free?

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

### Is SWAAC ELSO APP free?

SWAAC ELSO APP is free to download, with no in-app purchases.

### Do ODC Tutor or SWAAC ELSO APP have ads?

Neither ODC Tutor nor SWAAC ELSO APP shows ads.

### Which is updated more often, ODC Tutor or SWAAC ELSO APP?

ODC Tutor ships an update every 2 months, and SWAAC ELSO APP every 8 days. Most recently, ODC Tutor was updated on October 4, 2026 and SWAAC ELSO APP 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.*