# Supplement & Vitamin Tracker vs Synstax

The clearest difference is update cadence: Supplement & Vitamin Tracker at every 3 days against Synstax's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Supplement & Vitamin Tracker sells 5 in-app purchases, starting at $3.99 per 7 days and Synstax sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Supplement & Vitamin Tracker ships an update every 3 days, Synstax every 3 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Supplement & Vitamin Tracker | Synstax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 82 MB | 151 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Ivan Terekhin](https://appshunter.io/developer/888645337) | [宁 丁](https://appshunter.io/developer/1848762948) |

## What reviewers say

### Supplement & Vitamin Tracker

[App page](https://appshunter.io/ios/app/supplement-and-vitamin-tracker/id6759703178)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Premium Monthly | $6.99 | per month |
| Yearly Premium | $29.99 | per year |
| Lifetime Premium | $29.99 | one-time |
| Lifetime Premium | $39.99 | one-time |


### Synstax

[App page](https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147)

This app helps you manage supplement intake by checking for harmful combinations, analyzing food interactions, and tracking dosages. It features an AI-powered label scanner to extract product information and provides smart scheduling for your routine. Get personalized insights and guidance for your wellness journey.

**Highlights:** Supplement combination checker, Food and supplement interaction analysis, Intake and dosage tracking, AI label scanner, AI analysis and chat, Smart scheduling

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synstax Pro | $4.99 | per month |
| Synstax Pro | $29.99 | per year |
| Synstax Pro Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Supplement & Vitamin Tracker free?

Supplement & Vitamin Tracker is free to download, with in-app purchases available.

### Is Synstax free?

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

### Do Supplement & Vitamin Tracker or Synstax have ads?

Neither Supplement & Vitamin Tracker nor Synstax shows ads.

### Which is updated more often, Supplement & Vitamin Tracker or Synstax?

Supplement & Vitamin Tracker ships an update every 3 days, and Synstax every 3 weeks. Most recently, Supplement & Vitamin Tracker was updated on November 7, 2026 and Synstax on October 31, 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.*