# GymDose vs Synstax

The clearest difference is update cadence: GymDose at every 8 days against Synstax's every 3 weeks. GymDose also leads on ratings volume (5 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. GymDose sells 3 in-app purchases, starting at $1.99 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.

On the App Store both sit at effectively the same score — 5.0 for GymDose against 5.0 for Synstax. That said, the two scores are not equally well evidenced: GymDose has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

GymDose ships an update every 8 days, Synstax every 3 weeks. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | GymDose | Synstax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/gymdose-supplement-tracker/id6756020237/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 47 MB | 152 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Baransel Arslan](https://appshunter.io/developer/1858003941) | [宁 丁](https://appshunter.io/developer/1848762948) |

## What reviewers say

### GymDose

[App page](https://appshunter.io/ios/app/gymdose-supplement-tracker/id6756020237)

This app helps serious gym-goers meticulously track their vitamin and pill intake. It offers smart reminders tailored to training and rest days, allowing users to log doses quickly and maintain consistency with their supplement stacks.

**Highlights:** Training/Rest Day Scheduling, Smart Pill Reminders, Supplement Stack Organization, Streaks and Progress Tracking, Live Activity Widget, Custom Supplement Icons

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GymDose - Weekly | $1.99 | per 7 days |
| GymDose - Monthly | $2.99 | per month |
| GymDose Premium | $12.99 | one-time |


### Synstax

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

This app helps you manage your supplement intake by checking for interactions between supplements and how your diet affects absorption. It features AI-powered label scanning, intake tracking, and personalized insights to optimize your routine.

**Highlights:** Supplement combination checker, Diet-supplement absorption insights, AI-powered label scanner, Smart intake tracking, AI analysis and chat, Personalized 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 GymDose free?

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

### Is Synstax free?

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

### Which has better reviews, GymDose or Synstax?

GymDose and Synstax are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do GymDose or Synstax have ads?

Neither GymDose nor Synstax shows ads.

### Which is updated more often, GymDose or Synstax?

GymDose ships an update every 8 days, and Synstax every 3 weeks. Most recently, GymDose was updated on October 14, 2026 and Synstax on October 11, 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.*