Digital Stamp Decoder vs Dr. Green・Plant Identifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Stamp Decoder
Reveal hidden images on USPS postage stamps using advanced Scrambled Indicia® technology. Originally designed for anti-counterfeiting, this app offers stamp collectors a unique way to authenticate and appreciate their collection. Explore the innovative world of philately with this modern collector's tool.
- Reveal hidden stamp images
- Utilizes Scrambled Indicia® technology
- Authenticates USPS postage stamps
- Aids stamp collectors and philatelists
- Showcase stamp collection
Read full descriptionHide full description
Uncover hidden images in USPS postage stamps with the Digital Stamp Decoder! Originally developed by GSSC in partnership with USPS to protect against counterfeiting, this app brings the innovative Scrambled Indicia® technology to your smartphone. Now, you can reveal the hidden designs in the popular Shuttle Stamp, a must-have for stamp collectors and philatelists. Download the app, showcase your collection, and enjoy a unique, modern twist on stamp authentication. Don't miss out on this innovative collector's tool!
Dr. Green・Plant Identifier
Instantly identify plants and minerals with AI, receive detailed care instructions, and diagnose plant diseases. Get personalized care plans, reminders, and even consult with botanists for expert advice.
- AI Plant Identification
- Disease Diagnosis & Treatment
- Personalized Care Plans
- Care Reminders
- Light Meter
- Expert Botanist Consultation
Read full descriptionHide full description
Dr. Green - Plant Identification, Care & Diagnosis Are you a plant enthusiast looking to identify, care for, and diagnose your plants? Dr. Green is the perfect solution for you. Our advanced AI-powered app helps you instantly discover plant names by simply scanning an image. You’ll receive a comprehensive report that includes detailed care instructions and disease diagnostics. With Dr. Green, you can effortlessly care for your plants and ensure they thrive. Download the app today and become a plant care expert! Also Introducing “Ask a Botanist” – Instant Plant Help, 24/7! Key Features: ► Plant Identifier Instantly recognize thousands of plants and minerals. Snap a photo, and let our AI identify the plant while providing detailed care tips. ► Plant Doctor Diagnose plant diseases early. Get accurate disease identification and treatment suggestions to keep your plants healthy. ► Personalized Care Plans Tailored care plans for each plant species, with detailed instructions on watering, fertilizing, lighting, and pruning. ► Care Notifications Never miss a task. Set reminders for watering, fertilizing, and other care routines. ► Light Meter Ensure your plants receive the right amount of light. Use AR technology to measure light levels and find the perfect spot for your plants. ► Watering Calculator Determine the optimal watering schedule for your plants. Answer a few questions to get precise watering instructions. ► Weather Tracking Stay updated on weather changes. Receive alerts about storms, frost, and other conditions that could impact your outdoor plants. ► Expert Consultation Connect with our botanists for personalized advice. Get tailored recommendations and step-by-step guides for all your plant care needs. ► Growth Tracking Capture photos of your plants regularly and monitor their progress with our visual analysis tool. Get charts and recommendations based on their development to ensure healthy growth. Got a sick plant? Yellow leaves? Not sure if it’s too much sun or not enough water? With our new AI-powered botanist chat, you get real-time answers to any plant problem—day or night. Whether you’re struggling with lighting, watering, pests, or general care, our expert assistant knows your plant’s history, health, and location to give you personalized advice instantly. No more guesswork. Just happy, thriving plants. Why Choose Dr. Green? • Easy to Use: Perfect for both beginners and experts. • Accurate Results: High precision in plant identification and disease detection. • Comprehensive Reports: Download detailed reports for personal use. Popular Searches to Find Us: • “How to identify my plant” • “Best tips for plant care” • “Diagnose plant diseases” • “App for plant identification” • “AI plant disease detection” • “Talk to a plant expert” Discover the secrets to thriving plants with Dr. Green, your ultimate plant identification and care app. Whether you’re trying to identify a mystery plant, seeking expert care tips, or diagnosing plant diseases, Dr. Green has everything you need. With cutting-edge technology, enjoy precise plant identification and personalized care recommendations to help your plants thrive. Download the app today and join the community of plant lovers who trust Dr. Green for all their plant care needs! Please review our Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Dr. Green・Plant Identifier at Free against Digital Stamp Decoder's $2.99. Dr. Green・Plant Identifier also leads on update cadence (every 11 days vs every 5 months) and ratings volume (277 vs 2). Digital Stamp Decoder's advantage is in-app purchases (none vs 2) and rating (5.0 vs 4.6). On 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
Dr. Green・Plant Identifier is free to download; Digital Stamp Decoder costs $2.99 up front. Dr. Green・Plant Identifier sells 2 in-app purchases, starting at $3.99 per month. Digital Stamp Decoder asks for nothing beyond the download.
Digital Stamp Decoder holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Dr. Green・Plant Identifier has 277 ratings behind it against 2, so its average is the more settled of the two.
Digital Stamp Decoder ships an update every 5 months, Dr. Green・Plant Identifier every 11 days. The most recent releases landed on June 1, 2026 and September 15, 2026 respectively.
| Parameter | Digital Stamp Decoder | Dr. Green・Plant Identifier |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | 4.6 (277 ratings) |
| Positive reviews | — | 70.0% of reviews |
| Number of ratings | 2 | 277 — better |
| Update frequency | Every 5 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 205 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Graphic Security Systems Corp. | ZFR NOVA SL |
Customer experience
Digital Stamp Decoder
Dr. Green・Plant Identifier
In-app purchases
Digital Stamp Decoder
No in-app purchases
Dr. Green・Plant Identifier
- Dr. Green PRO Monthly$3.991 Month
- Paywall7 Days trial$24.991 Year
