# Cal Smart vs Good Gut

The clearest difference is ads: Cal Smart at none against Good Gut's shown. Cal Smart also leads on update cadence (monthly vs every 6 months) and ratings volume (4 vs 1). Good Gut's advantage is iOS requirement (13.0 vs 15.5). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Cal Smart sells 3 in-app purchases, starting at $1.99 per 7 days and Good Gut sells 1 in-app purchase, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Cal Smart against 5.0 for Good Gut. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Cal Smart ships an update monthly, Good Gut every 6 months. The most recent releases landed on October 8, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Cal Smart | Good Gut |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/cal-smart/id6737219020/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/good-gut/id6742621542/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 135 MB | 61 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jienan Yao](https://appshunter.io/developer/994410104) | [Skip Studios](https://appshunter.io/developer/1799054193) |

## What reviewers say

### Cal Smart

[App page](https://appshunter.io/ios/app/cal-smart/id6737219020)

Instantly analyze meals by taking a photo to get calorie and macronutrient breakdowns. Receive personalized health advice and track workouts for a holistic approach to wellness. View weekly reports to monitor progress and make informed dietary choices.

**Highlights:** Photo-based nutrient recognition, Personalized health advice, Integrated workout tracking, Weekly health reports, Simple and intuitive interface, Comprehensive health tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cal Smart Membership | $1.99 | per 7 days |
| Cal Smart Membership | $6.99 | per month |
| Cal Smart Membership | $24.99 | per year |


### Good Gut

[App page](https://appshunter.io/ios/app/good-gut/id6742621542)

This app helps improve gut health by tracking the diversity of plant-based foods consumed. It simplifies logging various plant foods, setting intake goals, and visualizing progress to support a healthier microbiome.

**Highlights:** Track plant diversity, Set daily and weekly goals, Visualize progress with history log, Extensive database of over 600 plants, User-friendly interface

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Good Gut Premium | $1.49 | per month |


## Frequently asked questions

### Is Cal Smart free?

Cal Smart is free to download, with in-app purchases available.

### Is Good Gut free?

Good Gut is free to download, with in-app purchases available.

### Which has better reviews, Cal Smart or Good Gut?

Cal Smart and Good Gut are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Cal Smart or Good Gut have ads?

Good Gut shows ads; Cal Smart does not.

### Which is updated more often, Cal Smart or Good Gut?

Cal Smart ships an update monthly, and Good Gut every 6 months. Most recently, Cal Smart was updated on October 8, 2026 and Good Gut on October 22, 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.*