SIGNALERT App vs MeshWave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIGNALERT App
Report and monitor natural or man-made disasters, climate change effects, and extreme events. Share observations, receive real-time alerts from other users, and access safety tips and institutional resources.
- Report natural and man-made disasters
- Crowdmap observations with photos
- Receive real-time alerts from users
- Access safety behavior tips
- Monitor worldwide places of interest
- Share alerts on social networks
- Create community monitoring networks
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SIGNALERT is an information-sharing and crowdmapping application allowing each one of us to report, be warned and monitor the impact of natural or man-made disasters, the effects of climate change, extreme events or crisis that impacts us, our environment, or of which we are witnesses or victims. Locate your observation, take a picture, and answer a few simple questions to describe the intensity level of the phenomenon and its impact. Give your own observations. That's all. Send and share the alert, in return, get a map of observations by other witnesses and App users around you. Natural phenomena to describe are: Earthquake, Cyclone/hurricane/typhoon, Floods, Rockfalls, Landslide, Avalanches, Snowfall, Wildfires, Storm Surge, Tornado, Tsunami, Volcanic Eruption, Heatwave, Drought, High Temperature, Heavy Rainfall, Locust invasion And man-made phenomena: Marine and coastal pollution, Unauthorized dumps, Road/Rail accidents, Fire-Explosion, Air Quality, Troubles and violence, Attack, Health Crisis SIGNALERT allows you to exchange in real time, with other users of the app, the effects of such phenomena, that are just starting and may become dangerous in your field of vision or beyond, from wherever you are in the world. The app also gives you tips about appropriate behaviors for each phenomenon, and will instruct you about how to recognize the intensity level and impact, and offers links to the institutional websites of forecasts, warning or monitoring worldwide. Once sent an alert with the App you can share it on social networks. The paid version is your personal or community warning system nearby: • Choose which worldwide places of interest you want to monitor and automatically receive real-time notifications for any alert sent nearby by other users. • Use the "I am safe" button to report to your loved ones or relatives, that you are not in danger if you are the witness of a disastrous situation. • Receive real-time warning notifications or alerts of flooding on monitored river sections close to your sites of interest (works in France for now, soon in other countries), exceeded temperatures thresholds or extreme rainfall based on open data from internet of things (works better in countries with dense networks of connected objects and may not give any results if no sensor with shared open data in the neighbourhood). Create your own monitoring network between neighbours, and relay the proximity alerts whenever a member of your network detects a potentially harmful phenomenon nearby. When traveling, you can find in the app websites of official national or international institutions in charge of weather and extreme event forecasts, reports and monitoring. The app is available in French, English, Spanish, Arabic and other languages soon. You can change or cancel your subscription (automatic renewal) in settings of your account on the application. The payment is made via your iTunes account. Privacy policy and terms of use : http://content.signalert.net/cgu-fr.html#privacy
MeshWave
This app transforms your iPhone into an advanced off-grid communicator. It enables voice calls, photo sharing, AR navigation, and weather forecasting without needing cell service or internet. Connect a LoRa radio to create a private mesh network for reliable communication in remote areas.
- Off-grid voice calls
- Photo sharing over mesh
- Augmented reality navigation
- Weather forecasting
- Geofencing alerts
- Tactical rangefinder
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MeshWave turns your iPhone into the most advanced off-grid communicator ever built. Connect a $30 Meshtastic LoRa radio and get voice calls, photo sharing, augmented reality navigation, weather forecasting, tactical rangefinding, and geofencing — all without cell towers, WiFi, or monthly fees. HOW IT WORKS Pair any Meshtastic-compatible LoRa radio via Bluetooth. Your mesh network forms automatically — no configuration, no infrastructure, no internet required. Range: 3-10+ miles depending on terrain. MESHSIGHT™ — AR GEOGRAPHIC IDENTIFICATION Point your camera at any landscape. 1.9 million verified features — peaks, towers, lakes, ridges, cities — labeled in real-time AR with name, distance, elevation, and bearing. Works in every country. Long-press any label to navigate. MESHVOICE™ — PUSH-TO-TALK VOICE Crystal-clear voice over LoRa mesh. Press, talk, release. No cell towers, no repeaters, no subscription. MESHSNAP™ — PHOTO SHARING OVER MESH Send photos over mesh radio. Trail conditions, wildlife, damage reports — 99.5% delivery reliability on lossy mesh links. MESHRANGE™ — TACTICAL DIGITAL RANGEFINDER GPS-calculated distance to any map point, mesh node, or verified landmark. Mil-dot reticle, military HUD, night vision mode. MESHWEATHER™ — OFF-GRID WEATHER FORECASTING Phone barometer + Zambretti algorithm = weather predictions without internet. 30 forecast outcomes, 3-hour pressure analysis. MESHFENCE™ — GEOFENCING WITH MESH ALERTS Draw boundaries. When anyone crosses them, alerts broadcast to your team over mesh. Enter/exit alerts, drift detection, return-to-trail confirmation. Share zones for distributed monitoring. MESHMAP™ — INTELLIGENT OFFLINE MAPS Download maps before you go. Lose connectivity? MeshMap activates automatically with distance rings and 1.9M features. Never see a blank screen off-grid. MORE FEATURES - Encrypted group channels (Spaces) with QR invites - Emergency Quick Messages with GPS coordinates - Route History with visual trails and time filtering - Bearing navigation compass to any node or landmark - Offline map downloads (terrain, standard, trails) - 14-day free trial — full Pro access, no credit card WHO IT'S FOR Hikers, hunters, campers, overlanders, search & rescue teams, scouts, ranchers, preppers, sailors, backcountry skiers, and anyone who goes where cell towers don't. WHAT YOU NEED - iPhone running iOS 15+ - Any Meshtastic-compatible LoRa radio ($25-65 on Amazon) - No subscriptions. No infrastructure. No internet. PRICING Free tier includes AR identification, offline maps, and messaging. Pro unlocks voice, photos, geofencing, rangefinder, and all premium features for a one-time $9.99. BUILT FOR MESHTASTIC MeshWave is a third-party companion app — not a fork or replacement. It connects to standard Meshtastic radios running stock firmware via Bluetooth. Nothing is modified on your radio. We're proud to build on the Meshtastic project's incredible open-source foundation. Meshtastic® is a registered trademark of Meshtastic LLC. MeshWave is not affiliated with or endorsed by Meshtastic LLC. 24+ world-first features. Zero infrastructure. The most capable off-grid communication app ever made.
Screenshots
Verdict
The clearest difference is rating: MeshWave at 3.3 against SIGNALERT App's 1.0. MeshWave also leads on review sentiment (27% vs 0%) and ratings volume (8 vs 1). SIGNALERT App's advantage is in-app purchases (none vs 1). On price, update cadence, ads 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. MeshWave sells 1 one-off in-app purchase. SIGNALERT App asks for nothing beyond the download.
MeshWave holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: MeshWave has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of SIGNALERT App's written reviews are positive against 27% of MeshWave's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.
| Parameter | SIGNALERT App | MeshWave |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.3 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | 27.3% of reviews — better |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 121 MB |
| Age rating | 4+ | +4 |
| Developer | Signalert SARL | Richard Ramos |
Customer experience
SIGNALERT App
MeshWave
In-app purchases
SIGNALERT App
No in-app purchases
MeshWave
- MeshWave Pro$9.99









