# Matrix DataSync vs OhSnap Calorie Tracker

The clearest difference is in-app purchases: Matrix DataSync at none against OhSnap Calorie Tracker's 1. Matrix DataSync also leads on iOS requirement (13.0 vs 18.5). OhSnap Calorie Tracker's advantage is update cadence (every 4 days vs every 3 weeks) and ratings volume (3 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. OhSnap Calorie Tracker sells 1 in-app purchase, starting at $4.99 per month. Matrix DataSync asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Matrix DataSync against 5.0 for OhSnap Calorie Tracker. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Matrix DataSync ships an update every 3 weeks, OhSnap Calorie Tracker every 4 days. The most recent releases landed on October 4, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Matrix DataSync | OhSnap Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/matrix-datasync/id6741863545/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/ohsnap-calorie-tracker/id6758887869/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 17 MB | 3 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Across Matrix](https://appshunter.io/developer/1732744795) | [OhSnap Calorie Tracker](https://appshunter.io/developer/6784285993) |

## What reviewers say

### Matrix DataSync

[App page](https://appshunter.io/ios/app/matrix-datasync/id6741863545)

Facilitates research and elevates care for rare diseases by syncing patient device data to a central platform. It securely transfers biometric data from personal devices for population-based research and analysis.

**Highlights:** Syncs patient device data, Facilitates rare disease research, Elevates patient care, Secure data storage, Biometric data transfer, MDDS Class I exempt system

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

**In-app purchases:** none


### OhSnap Calorie Tracker

[App page](https://appshunter.io/ios/app/ohsnap-calorie-tracker/id6758887869)

Effortlessly track daily calories and macros by simply taking a photo of your meals. Monitor progress with visual dashboards and historical charts. Offers AI-powered analysis for meals and workouts, with optional premium features for enhanced insights.

**Highlights:** AI Meal Analysis via Photo, Calorie and Macro Tracking, Progress Visualization, AI Workout Analysis, Data Export, Cloud Sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oh Snap Premium | $4.99 | per month |


## Frequently asked questions

### Is Matrix DataSync free?

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

### Is OhSnap Calorie Tracker free?

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

### Which has better reviews, Matrix DataSync or OhSnap Calorie Tracker?

Matrix DataSync and OhSnap Calorie Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Matrix DataSync or OhSnap Calorie Tracker have ads?

Neither Matrix DataSync nor OhSnap Calorie Tracker shows ads.

### Which is updated more often, Matrix DataSync or OhSnap Calorie Tracker?

Matrix DataSync ships an update every 3 weeks, and OhSnap Calorie Tracker every 4 days. Most recently, Matrix DataSync was updated on October 4, 2026 and OhSnap Calorie Tracker on September 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.*