16 Relay Controller vs PCBmaker
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
16 Relay Controller
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App to control henry solutions 16 Relay hardware devices. The 16 Relay controller connects to an IOT device via web service calls. The webservice endpoints you connect to is determined by the application settings. The default IP address of the webservice for the relay controller is set to a non-routable IP address of 192.168.4.2. The app only uses http and not https so it is only suitable for controlling IOT devices in a closed environment. The 16 Relay controller is limited to sending only the following URL request to the IP address you enter in the settings: http://[ip-address]/status http://[ip-address]/status/[relay-number] http://[ip-address]/on/[relay-number] http://[ip-address]/off/[relay-number] http://[ip-address]/allon http://[ip-address]/alloff http://[ip-address]/hb
PCBmaker
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PCBmaker lets you design PCBs right on your iPhone: build a circuit from ready-made modules, route it automatically, then etch the board at home or order it from a factory. FREE FEATURES ⢠Build circuits from ready-made modules: Arduino, ESP32, sensors, displays, motor drivers, voltage regulators and many more. ⢠Connect pins automatically or by hand. ⢠The Circuit Inspector (DRC) catches wiring mistakes. ⢠The autorouter routes the traces for you. ⢠Preview the board and the etching negative. ⢠Export a 1:1 Print Negative (PDF) for home etching with toner transfer or a laser: top and bottom sides, mirroring, drill holes, outline, labels and laser kerf compensation. ⢠Use starter projects with a parts list and an Arduino sketch. PCBmaker PRO, production exports: ⢠Gerber ZIP ready to order from JLCPCB ⢠KiCad netlist (.net) ⢠JLCPCB BOM (CSV) Made for hobbyists, students and makers who solder their own boards and want to get from idea to working PCB fast. PCBmaker by Terlecki Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/]
Screenshots
Verdict
The clearest difference is in-app purchases: 16 Relay Controller at none against PCBmaker's 2. PCBmaker's advantage is update cadence (every 8 days vs every 34 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. PCBmaker sells 2 in-app purchases, starting at $6.99 per month. 16 Relay Controller asks for nothing beyond the download.
16 Relay Controller ships an update every 34 months, PCBmaker every 8 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | 16 Relay Controller | PCBmaker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 34 months | Every 8 days ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 0 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Henry | BARTOSZ TERLECKI |
In-app purchases
16 Relay Controller
No in-app purchases
PCBmaker
- PCBmaker PRO Monthly$6.991 Month
- PCBmaker PRO Yearly$49.991 Year
Questions
Is 16 Relay Controller free?
Is PCBmaker free?
Do 16 Relay Controller or PCBmaker have ads?
Which is updated more often, 16 Relay Controller or PCBmaker?
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