Sensor sender vs OrbMail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor sender
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Turn your device into a sensor you can stream from. Sensor Sender reads your device's motion, position, and environment sensors and sends the values, live, to somewhere you choose. A laptop running a game engine, a synth, a microcontroller, or a visual on the same Wi-Fi. WHAT IT READS • Accelerometer, gyroscope, magnetometer, and combined device motion • Location, compass heading, and step count • Barometer, ambient light, microphone level, and battery • Touch and QR / barcode scanning WHERE IT SENDS • OSC, MQTT, HTTP/HTTPS, or UDP • Straight to your endpoint. No account, no cloud service in the middle • Per-sensor toggles and rate limiting, so you only send what you need SEE WHAT YOU'RE SENDING Every sensor has a live chart, so you can check if a reading looks right before you wire it into anything. GOOD FOR Prototyping, interactive installations, motion-controlled visuals and audio, and research data collection. Anywhere you'd otherwise build custom hardware to get the same numbers. Sensor Sender only sends. You bring the receiver: any OSC, MQTT, HTTP, or UDP endpoint you already have, or can run yourself.
OrbMail
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OrbMail — your email, seen as a system. OrbMail is a fast, private mail client for iPhone that turns your inbox into something you can actually read and act on. It connects directly to Gmail, iCloud, Outlook, Yahoo or your own IMAP server — with no OrbMail servers in between. Type your address and OrbMail detects your provider and its servers for you. WHAT MAKES IT DIFFERENT • What's happening — in the Daily, each cluster gets its own headline and a short, human read of what's moving: who is waiting on whom, what's due and what to do today. Ask Siri “What's happening in OrbMail” and it tells you, without opening the app. • Clusters — group senders into areas (Family, Work, Finance…) and see your mail as a living diagram of who writes to you and about what. OrbMail can suggest the clusters for you. • Awaiting reply — OrbMail surfaces the threads where the ball is in your court, so nothing slips. • Clean reading — messages render beautifully; remote tracking images are blocked by default. • Your way — Automatic, Light or Dark theme, larger text when you need it, and drafts that save themselves. PRIVACY, BY DESIGN OrbMail has no servers of its own. It talks directly to your mail provider and no one else. Your email, password and tokens travel only to your mail provider — never to OrbMail or any third party. Everything OrbMail works out (What's happening, headlines, clusters, awaiting reply) is computed on your iPhone. Credentials live in the iOS Keychain; local data is encrypted with iOS Data Protection. No analytics, no trackers, no OrbMail account. APPLE INTELLIGENCE, ON DEVICE The AI-written text uses Apple Intelligence, runs entirely on device and requires iPhone 15 Pro or later with iOS 26 and Apple Intelligence turned on. On other iPhones, OrbMail still shows What's happening as a plain summary built on the device, suggests clusters by topic and domain, and works as a fast, private mail client. Languages: English, Español, Deutsch, Italiano, Français, Português, 中文, 日本語.
Screenshots
Verdict
The clearest difference is price: OrbMail at Free against Sensor sender's $0.99. OrbMail also leads on update cadence (every 2 days vs every 2 months). Sensor sender's advantage is iOS requirement (15.5 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
OrbMail is free to download; Sensor sender costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sensor sender ships an update every 2 months, OrbMail every 2 days. Both last shipped on September 29, 2026.
| Parameter | Sensor sender | OrbMail |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.5 — better | 18.0 |
| Further details — not scored | ||
| Size | 68 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Adrianus Sebastiaan Boer | Julio Aris Serey |
In-app purchases
Sensor sender
No in-app purchases
OrbMail
No in-app purchases








