# aSynapse vs MarsMD Toolbox

The clearest difference is update cadence: aSynapse at every 2 months against MarsMD Toolbox's every 37 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

aSynapse ships an update every 2 months, MarsMD Toolbox every 37 months. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | aSynapse | MarsMD Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 37 months |
| Size | 105 MB | 18 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Paulo Silva](https://appshunter.io/developer/1478829768) | [ANDRII CHEKHIVSKYI](https://appshunter.io/developer/1654707129) |

## What reviewers say

### aSynapse

[App page](https://appshunter.io/ios/app/asynapse/id740748002)

**Features:** macOS Compatibility

**In-app purchases:** none


### MarsMD Toolbox

[App page](https://appshunter.io/ios/app/marsmd-toolbox/id6444441313)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is aSynapse free?

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

### Is MarsMD Toolbox free?

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

### Do aSynapse or MarsMD Toolbox have ads?

Neither aSynapse nor MarsMD Toolbox shows ads.

### Which is updated more often, aSynapse or MarsMD Toolbox?

aSynapse ships an update every 2 months, and MarsMD Toolbox every 37 months. Most recently, aSynapse was updated on October 5, 2026 and MarsMD Toolbox on October 1, 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.*