# Synapse vs btkbd

The clearest difference is in-app purchases: Synapse at none against btkbd's 1. btkbd's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. btkbd sells 1 one-off in-app purchase. Synapse asks for nothing beyond the download.

Synapse ships an update every 2 months, btkbd fortnightly. Both last shipped on September 27, 2026.

## The numbers

| Metric | Synapse | btkbd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (13 ratings)](https://appshunter.io/ios/app/btkbd/id6739158273/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 60 MB | 7 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zinc Digital](https://appshunter.io/developer/1147605401) | [Iaroslav Mironov](https://appshunter.io/developer/1630480538) |

## What reviewers say

### Synapse

[App page](https://appshunter.io/ios/app/synapse-vm/id1579685518)

**Features:** macOS Compatibility

**In-app purchases:** none


### btkbd

[App page](https://appshunter.io/ios/app/btkbd/id6739158273)

Transform your phone into a full-sized Bluetooth keyboard for various devices like laptops, tablets, and smart TVs. Easily type emails, messages, and more without needing extra hardware. Ideal for on-the-go use or when you need a convenient typing solution.

**Highlights:** Turns phone into a full-sized keyboard, Connects via Bluetooth, Supports laptops, tablets, TVs, and consoles, Easy setup and pairing, Convenient for travel and remote use, Type emails, messages, and notes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| btkbd.pro | $3.99 | one-time |


## Frequently asked questions

### Is Synapse free?

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

### Is btkbd free?

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

### Do Synapse or btkbd have ads?

Neither Synapse nor btkbd shows ads.

### Which is updated more often, Synapse or btkbd?

Synapse ships an update every 2 months, and btkbd fortnightly. Most recently, Synapse was updated on September 27, 2026 and btkbd on September 27, 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.*