# GynoShift vs SunMax

The clearest difference is iOS requirement: SunMax at 15.0 against GynoShift's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. GynoShift sells 3 in-app purchases, starting at $12.99 per month and SunMax sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

GynoShift ships an update every 3 days, SunMax every 5 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | GynoShift | SunMax |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 38 MB | 27 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kaniki Pty Ltd](https://appshunter.io/developer/1823539452) | [Oliver Stojcevski](https://appshunter.io/developer/1829807990) |

## What reviewers say

### GynoShift

[App page](https://appshunter.io/ios/app/gynoshift/id6747952478)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gynoshift_Mon | $12.99 | per month |
| GynoShift_Quat | $24.99 | per 3 months |
| Gynoshift_Year | $44.99 | per year |


### SunMax

[App page](https://appshunter.io/ios/app/sunmax-vitamin-d-tracker/id6749281214)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $39.99 | per year |
| SunMax Premium Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is GynoShift free?

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

### Is SunMax free?

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

### Do GynoShift or SunMax have ads?

Neither GynoShift nor SunMax shows ads.

### Which is updated more often, GynoShift or SunMax?

GynoShift ships an update every 3 days, and SunMax every 5 days. Most recently, GynoShift was updated on October 5, 2026 and SunMax on October 3, 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.*