QRCode++ vs TerraWarn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QRCode++
Effortlessly create and share QR codes for various purposes, including digital business cards and WiFi access. Stay informed with location tracking, air quality, and UV index updates, all while enjoying daily motivational quotes. Supports 9 languages for global users.
- Digital business card creation
- WiFi QR code generation
- Real-time location tracking
- Air quality and UV index monitoring
- Multilingual support (9 languages)
- Daily motivational quotes
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Share who you are in one scan — no typing, no spelling out passwords. QRCode++ turns your contact details into a beautiful digital business card with a QR code. Anyone can scan it with their phone's camera and save you to their contacts in seconds — no app needed on their side. Fully built in 繁體中文, 简体中文, 日本語, 한국어, Español, Português, Français, Italiano and Nederlands. YOUR DIGITAL BUSINESS CARD • Design your card: pick a color, or use your own photo as the background • Your photo right in the middle of the QR code • Bring in an existing contact, photo included — no retyping • Show it full screen for an easy scan, or share it by message or email • Save your card to Photos ON YOUR HOME SCREEN AND LOCK SCREEN (NEW) • vCard Card widget in three sizes: your QR code, your code with name, phone and email, or your whole designed card — ready to scan • Lock Screen shortcut: one tap opens your full-size code MORE THAN BUSINESS CARDS • Wi-Fi: guests scan and join — no spelling out the password • Phone: a QR code that dials your number • URL / Text: links, menus, anything you want to share WHERE AM I? • Your current location and address, with weather, UV index and air quality • Sunrise, sunset and upcoming holidays — handy when you travel PEACE OF MIND • iCloud backup, daily and automatic — switch phones without losing a thing • No account needed PAY ONCE. YOURS FOR LIFE. No ads. No subscriptions. No in-app purchases. A LITTLE INSPIRATION • Fresh motivational quotes and app tips, right on the main screen
TerraWarn
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TerraWarn helps you stay informed about natural hazards and prepare for emergencies with hazard alerts, interactive maps, preparedness tools, emergency resources, and safety guidance. IMPORTANT DISCLAIMER TerraWarn is an independent application. It is NOT affiliated with, endorsed by, authorized by, or operated by any government, government agency, emergency service, or public authority. TerraWarn does not represent a government entity and is not a government service. Information is provided for informational and educational purposes only. It does not replace official emergency alerts, instructions from authorities, professional medical advice, or emergency services. In an emergency, contact local emergency services and follow official instructions. SOURCES OF INFORMATION TerraWarn uses information obtained or adapted from these publicly available sources: • U.S. Geological Survey (USGS) — Earthquakes https://earthquake.usgs.gov/ • NASA EONET — Natural events https://eonet.gsfc.nasa.gov/ • Global Disaster Alert and Coordination System (GDACS) — Disaster alerts https://www.gdacs.org/ • U.S. Centers for Disease Control and Prevention (CDC) — Health & emergency preparedness https://www.cdc.gov/ • American Red Cross — First aid & preparedness https://www.redcross.org/ • Ready.gov (U.S. Department of Homeland Security) — Hazard safety & preparedness https://www.ready.gov/ • AirNow.gov (U.S. Environmental Protection Agency) — Air quality & wildfire smoke https://www.airnow.gov/ • OpenStreetMap — Map data and nearby-facility locations (hospitals, pharmacies, fire and police stations) https://www.openstreetmap.org/ Consult the original sources and relevant local authorities for authoritative and current information. HAZARD ALERTS View supported events including earthquakes, wildfires, floods, storms, volcanic activity, and other natural hazards. Choose the hazards you want to follow and configure available severity preferences. INTERACTIVE HAZARD MAP Explore supported hazard events on a map and view available details such as location, magnitude, depth, affected area, and event information. Where available, access the corresponding original source. EMERGENCY CONTACTS Quickly access emergency calling features and contact information. Emergency numbers vary by country and region and should be verified with local authorities. EMERGENCY GUIDES Access general safety information for earthquakes, floods, wildfires, hurricanes, severe storms, tornadoes, volcanic events, and other supported hazards. Guidance is based on the sources listed above and does not replace official instructions. FIRST AID & MEDICAL GUIDES Access general information about CPR, severe bleeding, burns, choking, stroke, heart attack, seizures, poisoning, and broken bones. Relevant content is based on publicly available American Red Cross and CDC guidance. Medical information is educational only and does not replace professional medical training, diagnosis, treatment, or emergency medical care. PREPAREDNESS Create emergency checklists and track essential supplies such as water, food, first-aid items, flashlights, radios, and important documents. MEDICAL PROFILE Store emergency information you choose to enter, including blood type, allergies, medications, and medical notes. This organizational feature does not provide diagnosis or treatment. NEARBY HELP Use location-based features to find supported nearby hospitals, pharmacies, fire stations, police stations, and other facilities, sourced from OpenStreetMap. Always verify critical information during an emergency. PRIVACY No account is required. Location is used when needed for location-based features such as nearby hazards and facilities. TerraWarn is an independent informational and preparedness app, NOT a government application. For authoritative emergency information, consult the original sources above and follow instructions from local authorities.
Screenshots
Verdict
The clearest difference is price: TerraWarn at Free against QRCode++'s $1.99. QRCode++'s advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement 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
TerraWarn is free to download; QRCode++ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
QRCode++ ships an update every 3 weeks, TerraWarn every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | QRCode++ | TerraWarn |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 16.7 | 16.4 — better |
| Further details — not scored | ||
| Size | 14 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | James Chang | mohamed oumaalla |
In-app purchases
QRCode++
No in-app purchases
TerraWarn
No in-app purchases








