# Synaptic Flow vs Spark

The clearest difference is ads: Spark at none against Synaptic Flow's shown. Spark also leads on update cadence (every 2 days vs every 39 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Synaptic Flow ships an update every 39 months, Spark every 2 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | Synaptic Flow | Spark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 39 months | **Every 2 days** |
| Size | 16 MB | 65 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [ZAINAB KICHOU AMANAD](https://appshunter.io/developer/1644291674) | [Rushi Raval](https://appshunter.io/developer/1462165401) |

## What reviewers say

### Synaptic Flow

[App page](https://appshunter.io/ios/app/synaptic-flow-brain-training/id1667108202)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spark

[App page](https://appshunter.io/ios/app/spark-cognitive-training-app/id6801150000)

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

**In-app purchases:** none


## Frequently asked questions

### Is Synaptic Flow free?

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

### Is Spark free?

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

### Do Synaptic Flow or Spark have ads?

Synaptic Flow shows ads; Spark does not.

### Which is updated more often, Synaptic Flow or Spark?

Synaptic Flow ships an update every 39 months, and Spark every 2 days. Most recently, Synaptic Flow was updated on October 8, 2026 and Spark on October 8, 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.*