Morse Relay vs Sidekey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Morse Relay
This app enables users to send and receive Morse code using their device's torch or screen. It supports app-to-app communication for encoding and decoding messages, with a visual blinking box option for devices without a torch.
- Send Morse code via torch
- Receive Morse code via camera
- Screen blinking for Morse code
- App-to-app encoding/decoding
- Morse code transmission
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Morse Relay allows you to: - Send out morse code over your device's torch - Record it by pointing your camera at another device that is emitting a morse message. Currently, it only supports encoding and decoding from app to app. The algorithms do not support human message fully yet. For device without torch, the signal is emitted in a blinking box on the screen. For suggestions or collaborations, contact @nidegen
Sidekey
Transform your iPhone into a wireless keyboard and custom shortcut pad for your Mac or Windows PC. Design your ideal layout with custom keys, shortcuts, and multiple layers. Control your computer seamlessly over Wi-Fi without any extra hardware.
- Customizable wireless keyboard
- Create custom shortcuts and combos
- Multiple layers and modes
- Trackpad functionality
- Voice typing to computer
- Quick QR code pairing
- Works with Mac and Windows
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Sidekey turns your iPhone into a customizable wireless keyboard and shortcut pad for your own computer. Tap keys on your phone and they type on your Mac or Windows PC over your local Wi‑Fi — no extra hardware, no cables. Design the keyboard you actually want: add keys, build shortcuts (including combos like Cmd/Ctrl, and left/right modifiers), arrange them on a grid, and switch between layers and modes. Keep your most-used shortcuts one tap away. HOW IT WORKS Sidekey works together with a small, free desktop helper you run on the computer you want to control. Put both devices on the same Wi‑Fi, scan a QR code once to pair, and you're connected. Pairing is secured with a token, and your keystrokes travel directly to your own computer — never through us. FEATURES • Custom key designer — make your own keys, shortcuts, and layouts • Shortcuts & combos — Cmd/Ctrl/Alt/Shift, function keys, media keys, and left/right‑specific modifiers • Multiple layers & modes — flip between a full keyboard, a shortcut deck, a trackpad, and more • Trackpad mode — use your phone as a touchpad with left/right buttons • Voice typing — dictate with the system keyboard and send the text to your computer • Quick pairing — scan a QR code; reconnects automatically afterward • Works with Mac and Windows • Private by design — no account, no tracking, nothing sent to the developer REQUIRES THE FREE DESKTOP HELPER Sidekey needs the free Sidekey helper running on your Mac or Windows computer. Download it from the link on our support page. Questions or ideas? We'd love to hear from you.
Screenshots
Verdict
The clearest difference is price: Sidekey at Free against Morse Relay's $0.99. Sidekey also leads on iOS requirement (16.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Sidekey is free to download; Morse Relay costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Morse Relay | Sidekey |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Echo Labs AG | Kaihong Chen |
Customer experience
Morse Relay
Sidekey
In-app purchases
Morse Relay
No in-app purchases
Sidekey
No in-app purchases









