KingKiosk vs Smart Ring Finder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KingKiosk
Transform any iOS device into a customizable multi-window display. Compose, control, and orchestrate real-time content across various tiles using MQTT. Ideal for creating dynamic dashboards, interactive displays, and smart home control panels.
- Multi-window display system
- Real-time MQTT control
- 35+ built-in widgets
- Deep Home Assistant integration
- AI voice control
- Intercom and broadcast features
- Privacy-first, local-first design
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King Kiosk is the world's first Programmable Display Runtime — turn any iPad or iPhone into a multi-window display surface you can compose, control, and orchestrate in real time over MQTT. It's not digital signage. It's not a kiosk. It's not a dashboard. It's all of those — and none of them — because you decide what every screen becomes by sending it instructions. A REAL WINDOWING SYSTEM ON iOS Run a clock, a weather widget, a live camera feed, a Home Assistant panel, and a media player on the same screen, each in its own resizable, independently controllable tile. Floating mode for pixel-perfect layouts, or tiling mode for automatic, non-overlapping grids. 35+ BUILT-IN WIDGETS Clocks, weather, media player, YouTube, image carousels, gauges, charts, maps, calendars, PDF viewer, animated text, RSS feeds, MQTT-driven images and buttons, an Alarmo security panel, an LED light panel, DLNA player, an intercom, games, and a real-time canvas widget for declarative graphics. MQTT-NATIVE FROM THE GROUND UP Every widget, every layout, every system setting is addressable over MQTT. 100+ commands. Build automations in Home Assistant, Node-RED, or any tool that speaks MQTT. Save entire layouts as named "screen states" and recall them on schedule. DEEP HOME ASSISTANT INTEGRATION Auto-discovers itself to Home Assistant. Publishes sensor data (battery, network, location, presence). Responds to automations. Bidirectional calendar sync. Person and object detection feeds straight into HA. AI VOICE CONTROL Connect to Home Assistant conversation agents, Anthropic Claude, OpenAI, Google Gemini, or local Ollama. Your displays can listen, understand, and respond. INTERCOM & BROADCAST Two-way WebRTC audio between devices, room-to-room paging, and full-fleet broadcast — built on the same engine as professional installed-audio gear. PRIVACY-FIRST, LOCAL-FIRST Your data stays on your network. Crash reports are off by default and explicitly opt-in. No analytics. No tracking. No cloud lock-in. GUIDED ACCESS KIOSK MODE Lock the device to King Kiosk for wall-mounted iPads, lobby displays, intercom stations, or smart-home control panels. Optional command signing (HMAC) for enterprise deployments. BUILT FOR FLEETS Deploy one device or a thousand. Replicate layouts across an entire fleet with a single MQTT message. Schedule layout changes by time of day or day of week. --- A new category for every screen. Visit kingkiosk.kallinnovations.com to see what's possible. Patent pending. Programmable Display Runtime™ is a trademark of Kall Innovations.
Smart Ring Finder
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Lost your smart ring somewhere in the house? Smart Ring Finder finds it — free. Smart Ring Finder listens for your ring's Bluetooth signal and turns it into a simple hot-and-cold meter. Walk around and the screen warms up as you get closer — blue when you're far, red when the ring is within reach. Your phone buzzes faster the nearer you get, so you can find it without staring at the screen. Free, with no ads and no subscriptions. No GPS. No location tracking. No account. Nothing ever leaves your phone. HOW IT WORKS • Open the app and it locks onto your ring. • Walk slowly through the room. The color and the big label change from FREEZING to COLD, COOL, WARM, and HOT as you close in. • See an estimated distance and live signal strength. • Feel it: the haptic buzz speeds up the closer you get. • When it turns red, search low and inside things — pockets, cushions, drawers, bags. WHY IT'S DIFFERENT • Built for the way people actually search: a warmer/colder game, not a confusing map. • Tuned to the low-power Bluetooth signal a smart ring puts out. • Calm, clean design. Haptics let you hunt with the phone at your side. • Completely private and offline. FIRST TIME If your ring is connected to its companion app, close that app once so the ring can broadcast. Pick your ring, and Smart Ring Finder remembers it from then on. GOOD TO KNOW Smart Ring Finder finds the ring's general area using Bluetooth signal strength — it gets you to the right spot to search by hand. It can't work if the ring's battery is dead or it's out of Bluetooth range. Compatible with Oura Ring and other Bluetooth smart rings. Smart Ring Finder is an independent app and is not affiliated with, endorsed by, or sponsored by Oura Health Oy. "Oura" is used only to describe a device this app can help you find.
Screenshots
Verdict
The clearest difference is ratings volume: Smart Ring Finder at 6 against KingKiosk's 1. KingKiosk's advantage is device support (3 vs 1). On price, rating, update cadence and ads 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.
On the App Store both sit at effectively the same score — 5.0 for KingKiosk against 5.0 for Smart Ring Finder. That said, the two scores are not equally well evidenced: Smart Ring Finder has 6 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.
| Parameter | KingKiosk | Smart Ring Finder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Number of ratings | 1 | 6 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 201 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Kall Innovations, LLC | Raindrop Global Inc. |
In-app purchases
KingKiosk
No in-app purchases
Smart Ring Finder
No in-app purchases









