# The Ohio Study vs Cali AI

The Ohio Study and Cali AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

The Ohio Study ships an update fortnightly, Cali AI every 3 weeks. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | The Ohio Study | Cali AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cali-ai/id6756086093/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 94 MB | 48 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Avicenna Research Inc.](https://appshunter.io/developer/1137173051) | [Noah M](https://appshunter.io/developer/1858427231) |

## What reviewers say

### The Ohio Study

[App page](https://appshunter.io/ios/app/the-ohio-study/id6747017208)

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

**In-app purchases:** none


### Cali AI

[App page](https://appshunter.io/ios/app/cali-ai/id6756086093)

Effortlessly track your nutrition with AI-powered food scanning and manual entry. Monitor calories, macros, and water intake with a customizable interface and personalized goals. Build healthier habits with detailed logs and an interactive dashboard.

**Highlights:** AI-powered food scanning, Manual food entry, Calorie and macro calculation, Customizable dashboard, Daily logs and history, Personalized goals, Water and workout tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is The Ohio Study free?

The Ohio Study is free to download, with no in-app purchases.

### Is Cali AI free?

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

### Do The Ohio Study or Cali AI have ads?

Neither The Ohio Study nor Cali AI shows ads.

### Which is updated more often, The Ohio Study or Cali AI?

The Ohio Study ships an update fortnightly, and Cali AI every 3 weeks. Most recently, The Ohio Study was updated on September 10, 2026 and Cali AI on September 14, 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.*