# OSTRICH vs IV Therapy Flash Cards

The clearest difference is in-app purchases: OSTRICH at none against IV Therapy Flash Cards's 1. OSTRICH also leads on ads (none vs shown) and update cadence (monthly vs every 5 months). IV Therapy Flash Cards's advantage is iOS requirement (13.0 vs 16.5). On price and device support there is nothing between them.

Both are free to download. IV Therapy Flash Cards sells 1 one-off in-app purchase. OSTRICH asks for nothing beyond the download.

OSTRICH ships an update monthly, IV Therapy Flash Cards every 5 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | OSTRICH | IV Therapy Flash Cards |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Size | 13 MB | 151 MB |
| Requires iOS | 16.5 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [The National Institute of Neurological Disorders and Stroke](https://appshunter.io/developer/1447332177) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### OSTRICH

[App page](https://appshunter.io/ios/app/ostrich-offlinedatacollection/id1587270551)

**Features:** macOS Compatibility

**In-app purchases:** none


### IV Therapy Flash Cards

[App page](https://appshunter.io/ios/app/iv-therapy-flash-cards/id6749753849)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IV Therapy Flash Cards, Ed.1 | $26.95 | one-time |


## Frequently asked questions

### Is OSTRICH free?

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

### Is IV Therapy Flash Cards free?

IV Therapy Flash Cards is free to download, with in-app purchases available.

### Do OSTRICH or IV Therapy Flash Cards have ads?

IV Therapy Flash Cards shows ads; OSTRICH does not.

### Which is updated more often, OSTRICH or IV Therapy Flash Cards?

OSTRICH ships an update monthly, and IV Therapy Flash Cards every 5 months. Most recently, OSTRICH was updated on September 21, 2026 and IV Therapy Flash Cards on September 19, 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.*