keyes arm vs SunFounder Controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
keyes arm
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这是一个用于控制keyestudio的4自由度机械臂的蓝牙4.0 APP
SunFounder Controller
This app acts as a virtual remote control for robot kits powered by ESP32 and Raspberry Pi. It offers customizable controls like radar ranging, tracking, sliders, buttons, and arrow keys for interactive robot operation.
- Virtual remote control
- ESP32 and Raspberry Pi compatibility
- Radar ranging control
- Three-channel tracking
- Customizable control layout
- Sliders, buttons, and arrow keys
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Sunfounder Controller is a virtual remote control APP, used to control ESP32 and Raspberry Pi-based robot kits. The APP integrates controls such as radar ranging, three-channel tracking, sliders, buttons, and arrow keys. Users can customize the arrangement of these controls according to their own preferences.
Screenshots
Verdict
The clearest difference is update cadence: SunFounder Controller at every 3 months against keyes arm's every 19 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
keyes arm ships an update every 19 months, SunFounder Controller every 3 months. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.
| Parameter | keyes arm | SunFounder Controller |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (28 ratings) — better |
| Positive reviews | — | 94.7% of reviews |
| Number of ratings | — | 28 — better |
| Update frequency | Every 19 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | 克俭 左 | Shenzhen Maker Stars Technology Co., Ltd. |
Bugs and requests
keyes arm
Not enough reviews yet to summarise bugs or requests.
SunFounder Controller
Reported bugs
2 issues- App disconnects and requires reinstallation to reconnect
- Link button is off-screen on iPhone XS Max
Requested features
2 requests- Add a list-box or radio-button widget class
- More warm functions
In-app purchases
keyes arm
No in-app purchases
SunFounder Controller
No in-app purchases
Questions
Is keyes arm free?
Is SunFounder Controller free?
Do keyes arm or SunFounder Controller have ads?
Which is updated more often, keyes arm or SunFounder Controller?
Other comparisons
