# Stressdown vs SynapseGym

The clearest difference is in-app purchases: Stressdown at none against SynapseGym's 3. Stressdown also leads on iOS requirement (11.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SynapseGym sells 3 in-app purchases, starting at $7.99 per month. Stressdown asks for nothing beyond the download.

Stressdown ships an update weekly, SynapseGym every 11 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Stressdown | SynapseGym |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Size | 51 MB | 111 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Eberhard Heuel](https://appshunter.io/developer/881793184) | [Jonas Hoettler](https://appshunter.io/developer/1812395414) |

## What reviewers say

### Stressdown

[App page](https://appshunter.io/ios/app/stressdown/id1505599974)

**Features:** macOS Compatibility

**In-app purchases:** none


### SynapseGym

[App page](https://appshunter.io/ios/app/synapsegym-brain-test-and-focus/id6747008971)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SynapseGym (monthly) | $7.99 | per month |
| SynapseGym Premium (yearly) | $44.99 | per year |
| SynapseGym Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Stressdown free?

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

### Is SynapseGym free?

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

### Do Stressdown or SynapseGym have ads?

Neither Stressdown nor SynapseGym shows ads.

### Which is updated more often, Stressdown or SynapseGym?

Stressdown ships an update weekly, and SynapseGym every 11 days. Most recently, Stressdown was updated on October 27, 2026 and SynapseGym on October 30, 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.*