# IV solution calculator vs EAACI Events

The clearest difference is price: EAACI Events at Free against IV solution calculator's $1.99. EAACI Events also leads on update cadence (every 2 weeks vs every 6 months). IV solution calculator's advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.6). On in-app purchases and device support there is nothing between them.

EAACI Events is free to download; IV solution calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IV solution calculator ships an update every 6 months, EAACI Events every 2 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | IV solution calculator | EAACI Events |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 9 MB | 109 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Rimon](https://appshunter.io/developer/590338647) | [CYIM](https://appshunter.io/developer/394180060) |

## What reviewers say

### IV solution calculator

[App page](https://appshunter.io/ios/app/iv-solution-calculator/id6471848937)

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

**In-app purchases:** none


### EAACI Events

[App page](https://appshunter.io/ios/app/eaaci-events/id6746266666)

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

**In-app purchases:** none


## Frequently asked questions

### Is IV solution calculator free?

IV solution calculator costs $1.99, with no in-app purchases.

### Is EAACI Events free?

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

### Do IV solution calculator or EAACI Events have ads?

EAACI Events shows ads; IV solution calculator does not.

### Which is updated more often, IV solution calculator or EAACI Events?

IV solution calculator ships an update every 6 months, and EAACI Events every 2 weeks. Most recently, IV solution calculator was updated on October 12, 2026 and EAACI Events on October 18, 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.*