# NutriSync vs Callie

The clearest difference is rating: NutriSync at 4.8 against Callie's 4.5. Callie's advantage is iOS requirement (15.1 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. NutriSync sells 14 in-app purchases, starting at $3.99 per month and Callie sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

NutriSync holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 70 and 66 respectively.

NutriSync ships an update weekly, Callie every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NutriSync | Callie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (70 ratings)](https://appshunter.io/ios/app/nutrisync-ai-macro-tracker/id6754780683/reviews)** | [4.5 (66 ratings)](https://appshunter.io/ios/app/callie-womens-calorie-tracker/id6768885019/reviews) |
| Number of ratings | **70** | 66 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Freemium | Freemium |
| Size | 113 MB | 61 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [NutriSync LLC](https://appshunter.io/developer/1844218916) | [Kian Burke](https://appshunter.io/developer/1773906543) |

## What reviewers say

### NutriSync

[App page](https://appshunter.io/ios/app/nutrisync-ai-macro-tracker/id6754780683)

This app uses adaptive AI to provide accurate calorie and macro tracking. It adjusts your daily targets based on your intake and calculates your TDEE from real data, not guesswork. Designed for lifters, it supports cut, bulk, and maintain phases with personalized goals.

**Highlights:** Adaptive AI meal scanning, Real-time target adjustments, TDEE calculation from weight trends, Customizable macro targets, Cut, bulk, and maintain phases, Daily check-ins for target updates

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| premium | $9.99 | per month |
| Monthly | $14.99 | per month |
| premium | $14.99 | per month |
| premium | $14.99 | per month |
| premium | $29.99 | per year |
| premium | $49.99 | per year |
| premium | $79.99 | per year |
| premium | $79.99 | per year |
| Annual | $79.99 | per year |
| premium | $79.99 | per year |
| premium | $99.99 | one-time |


### Callie

[App page](https://appshunter.io/ios/app/callie-womens-calorie-tracker/id6768885019)

This calorie tracker is designed for women, automatically adjusting targets and nutrition guidance based on your menstrual cycle phases. It offers smart weight trend analysis and effortless food logging to help you understand your body's fluctuations.

**Highlights:** Cycle-synced calorie and macro targets, Phase-specific nutrition guidance, Smart weight trend analysis, Camera-based food logging, Automatic menstrual phase prediction, Manual period tracking

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Callie Pro Weekly | $4.99 | per 7 days |
| Callie Pro Weekly | $9.99 | per 7 days |
| Callie Pro Monthly | $19.99 | per month |
| Callie Pro Monthly | $24.99 | per month |
| callie.pro.annual.downsell | $69.99 | per year |
| Callie Pro | $99.99 | per year |
| Callie Pro Annual | $99.99 | per year |
| Callie Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is NutriSync free?

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

### Is Callie free?

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

### Which has better reviews, NutriSync or Callie?

NutriSync is rated higher. NutriSync averages 4.8 out of 5 from 70 ratings, while Callie averages 4.5 from 66 ratings.

### Do NutriSync or Callie have ads?

Neither NutriSync nor Callie shows ads.

### Which is updated more often, NutriSync or Callie?

NutriSync ships an update weekly, and Callie every 10 days. Most recently, NutriSync was updated on October 30, 2026 and Callie on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*