# Calorie Counter vs Chart35

The clearest difference is in-app purchases: Chart35 at none against Calorie Counter's 6. Chart35 also leads on ads (none vs shown) and update cadence (every 6 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calorie Counter sells 6 in-app purchases, starting at $4.99 per month. Chart35 asks for nothing beyond the download.

Calorie Counter ships an update fortnightly, Chart35 every 6 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Calorie Counter | Chart35 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chart35/id6784113411/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | — | Free |
| Size | 69 MB | 5 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Revinade AB](https://appshunter.io/developer/1139689087) | [Stephens Page LLC](https://appshunter.io/developer/6777773686) |

## What reviewers say

### Calorie Counter

[App page](https://appshunter.io/ios/app/calorie-counter-portiongo/id6758466299)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $4.99 | per month |
| Weekly Premium Access | $4.99 | per 7 days |
| Weekly Premium | $7.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Yearly Premium | $29.99 | per year |
| Yearly Premium Access | $79.99 | per year |


### Chart35

[App page](https://appshunter.io/ios/app/chart35/id6784113411)

This app helps users privately track their fertility observations using the Creighton Model FertilityCare System. It offers offline functionality, color-coded stamps, and various chart views. Users can securely share their data with practitioners.

**Highlights:** Creighton Model charting, Offline-first functionality, Color-coded observation stamps, Chart and calendar views, Peak day and post-peak tracking, Secure practitioner sharing

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calorie Counter free?

Calorie Counter is free to download, with in-app purchases available.

### Is Chart35 free?

Chart35 is free to download, with no in-app purchases.

### Do Calorie Counter or Chart35 have ads?

Calorie Counter shows ads; Chart35 does not.

### Which is updated more often, Calorie Counter or Chart35?

Calorie Counter ships an update fortnightly, and Chart35 every 6 days. Most recently, Calorie Counter was updated on October 31, 2026 and Chart35 on November 5, 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.*