Tru vs Stealth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tru
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Complete camper and RV heating management, designed for iOS — with a dark Overview dashboard, history charts, Apple Watch, CarPlay, a Home Screen widget and a Lock Screen Live Activity. External hardware required: a self-hosted MQTT/BLE gateway device, configured and provided by the user (not included, not manufactured or sold by MF-Lab). CONTROL FROM YOUR IPHONE See everything at a glance on the Overview screen and tap a card to change it. Choose Bluetooth for local, offline control or MQTT for remote access from anywhere. • Dual connectivity: Bluetooth (BLE) and MQTT • Inside temperature with set point and a 6-hour chart • Hot water half-moon gauge from 0 to 70 °C, with OFF / ECO / HIGH / BOOST • Heating modes OFF / ECO / HIGH • Energy mix selection: Gas, Electric or Mix, with power level • Battery voltage with a charge estimate, or GRID when on shore power • Detailed error code explanations • Buttons that always follow the state reported by your gateway • Built-in Help with setup, controls and troubleshooting HISTORY Follow inside temperature, water temperature and battery voltage over 1 hour, 6 hours, 24 hours or 7 days. Data is recorded while the app is connected, including in the background, and gaps are shown as gaps. An Energy Source chart shows how long each setting was selected. History is stored on your device only. ON YOUR WRIST A dedicated Apple Watch app shows inside temperature and hot water side by side, with battery and energy source, and lets you adjust the room temperature, heating mode and hot water with large buttons that show the active setting. Get an alert right on your wrist the moment something needs attention. IN THE CAR Check your camper's status from the CarPlay screen: large colored cards for inside temperature, hot water, battery and energy, plus connection details, laid out for a quick glance with minimal distraction. ON YOUR HOME SCREEN AND LOCK SCREEN Add the Tru-Control widget to see your heater's last known status without opening the app, or start the Live Activity to keep temperatures, battery and energy source on your Lock Screen and Dynamic Island while the app is connected. ON IPAD Tru-Control runs as a compact floating window you can place next to other apps. ONE-TIME PURCHASE A single one-time purchase unlocks commands, Apple Watch, CarPlay and the widget. No subscription. You can restore a previous purchase or redeem an offer code from Settings. Tru-Control is an independent, unofficial application and is not affiliated with, endorsed by, or sponsored by any heating system manufacturer. This app uses the standard Apple End User License Agreement (EULA), available here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stealth
Conceal secret messages within ordinary text using invisible Unicode characters. The hidden content is undetectable to the eye but easily retrievable when pasted back into the app. It works across various platforms and keeps your messages private on your device.
- Hide messages in plain sight
- Invisible Unicode characters
- Works with Action Extension
- Local message history
- Offline functionality
- No tracking or analytics
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Hide secret messages inside ordinary-looking text using zero-width Unicode characters. The hidden message is invisible to the naked eye but extracts back instantly when pasted into Stealth Text. ONE SURFACE, ZERO MODES Type a message. Tap to add a hidden message. Seal & Copy — done. Paste a message containing hidden content and the secret reveals itself character-by-character. WORKS ANYWHERE The Action Extension decodes hidden messages straight from any iOS share sheet — Messages, Notes, Mail, Slack, anywhere you can share text. YOUR HISTORY, ORGANIZED Every message you encode or decode is saved locally with date-grouped sections, search, and filter chips for encoded, decoded, and favorites. Swipe right to favorite, left to delete. TRULY OFFLINE No accounts. No network requests. No analytics. No tracking. Your messages never leave your device. NOT ENCRYPTION Stealth Text hides messages — it does not encrypt them. Anyone aware of zero-width steganography can decode the hidden text. Use it to share secrets in plain sight, not to protect security-critical information. OPTIONAL TIP JAR Free forever. If you love it, leave a tip — Restore Purchases supported.
Screenshots
Verdict
The clearest difference is iOS requirement: Tru at 18.2 against Stealth's 26.2. 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. Tru sells 3 in-app purchases, starting at $1.99 per month and Stealth sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Tru | Stealth |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18.2 — better | 26.2 |
| Further details — not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Marco Frigerio | Mario Zigliotto |
In-app purchases
Tru
- Tru-Control Monthly Subscription7 Days trial$1.991 Month
- Tru-Control Annual Subscription$17.991 Year
- Tru-Control Lifetime$5.99
Stealth
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99









