Sungrade vs SmartMemo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sungrade
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Sungrade is the simplest way to find out how much direct sun any window in your home actually gets β and which houseplants will thrive there. Hold your iPhone against the inside of a window, tap Capture, and Sungrade reads the compass + tilt to learn exactly which way that pane faces. Combined with your location, it then runs NOAA's solar position algorithm for every day of the year and counts the minutes of direct sun your window receives β broken down by season. It's the sun report you wish your real-estate listing came with. WHAT YOU GET β’ A grade from A to F for every window you save, based on annual direct-sun hours β’ Today's exact direct-sun windows ("3:42 PM β 5:18 PM, 1h 36m") β’ A live "sun's path today" arc chart drawn just for your window β’ Seasonal breakdown β winter / spring / summer / fall β so you can plan for the year β’ Personalized plant picks from 30 popular houseplants, matched to your window's grade β’ Care + watering hints written by a plant nerd, not a chatbot PERFECT FOR β’ Plant parents who keep killing succulents in a north-facing window β’ Renters scouting an apartment β measure every window before you sign β’ Home buyers checking which rooms get morning light β’ Photographers looking for the prettiest window for portraits β’ Real estate agents who want to wow a buyer PRIVACY-FIRST Your location and motion data stay on your device. There are no accounts. No analytics. No subscription. One small price, yours forever. NO SUBSCRIPTION Sungrade is a one-time purchase. Use it as many times as you like, on every window in every place you live. Made by indie iOS developer Robert Corbin in Springfield, Massachusetts.
SmartMemo
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SmartMemo redefines how you capture tasks. Powered by on-device AI, it lets you create TODO items the way that feels most natural β type, speak, or snap a photo. KEY FEATURES: VOICE INPUT β’ Real-time speech-to-text using Apple Speech framework β’ Simply tap the mic and speak your task β it's transcribed instantly β’ Works in Chinese and English PHOTO RECOGNITION β’ Point your camera at a whiteboard, sticky note, or any text β’ Apple Vision OCR extracts text in under 2 seconds β’ MiniCPM-V on-device multimodal AI analyzes the image and suggests a smart TODO description ON-DEVICE AI β 100% PRIVATE β’ Powered by llama.cpp with Metal GPU acceleration β’ MiniCPM-V runs entirely on your device β no cloud, no servers, no data leakage β’ Streaming token output so you see the AI thinking in real time SMART TODO LIST β’ Color-coded tags: Work, Life, Study, Other β’ Swipe to delete, tap to complete β’ Real-time search filtering β’ Creation source badges (text / voice / photo) PRIVACY FIRST β’ All AI inference happens locally on your device β’ No account required, no ads, no tracking Perfect for students, professionals, and anyone who values both productivity and privacy.
Screenshots
Verdict
The clearest difference is price: SmartMemo at Free against Sungrade's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
SmartMemo is free to download; Sungrade costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sungrade | SmartMemo |
|---|---|---|
| Price | $3.99 | Free β better |
| Update frequency | Every 3 days | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details β not scored | ||
| Size | 34 MB | 400 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Corbin | ζ ι |
In-app purchases
Sungrade
No in-app purchases
SmartMemo
No in-app purchases









