SimTanka vs GenieNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimTanka
Read full descriptionHide full description
With climate change bringing more extreme weather, planning for adequate clean water is more important than ever. SimTanka helps you estimate, collect, store, and monitor rainwater for household use. SimTanka downloads past daily rainfall records for your location so you can see seasonal variations and drought cycles. Use this data to set a realistic daily household water budget tailored to your needs. SimTank then suggests optimal rainwater tank sizes to meet your budget based on the historical rainfall. Large tanks can be expensive, but undersized tanks won't provide enough water. This feature takes the guesswork out of planning tank capacity. Worried about droughts and shortages? SimTanka looks ahead 30 days using forecast data to estimate your available rainwater. You’ll know in advance if rationing may be required. After installing your system, the app becomes your water diary. Log each rainfall event and the amount collected in your tank. Note any water quality issues like odor or debris that require treatment. Record maintenance like filter changes and roof washing. Knowing your water supply and demand helps preparation. Store extra in times of plenty, and conserve when lean times arrive. With climate uncertainty, a good rainwater harvesting plan brings resilience and peace of mind. This app provides the information you need to create a reliable, safe home rainwater system.
GenieNote
Read full descriptionHide full description
Scribble Smarter!! Write, sketch, and calculate — all on one canvas. GenieNote turns your iPhone and iPad into a freeform workspace where handwritten notes, a smart calculator, photo stickers, and sticky labels live together on the same page. HANDWRITE & SKETCH FREELY • Natural ink with Apple Pencil or your finger • Smart canvas: pinch to zoom, pan, and resize freely • Quick-access pen, highlighter, eraser, and color presets BUILT-IN CALCULATOR • Basic arithmetic with ± and % (more functions coming soon) • Drag results onto the page as floating number stickers • Double-tap any saved number to label it ("budget", "total"…) • Drag any number back into the calculator to reuse it • Pro tip: tap an operator (like +), then tap any number on the canvas for instant copy & paste STICKY MEMO LABELS • Place anywhere, resize from any corner • Choose background color, text color, size, and font PHOTO COLLAGES & STICKERS • Add photos from your library or camera • Automatic background removal turns photos into stickers • Fine-tune cutouts by hand with the eraser • Mix photos with sketches for one-of-a-kind pages MADE FOR REAL LIFE • Class notes: formulas, diagrams, and instant math — great for STEM and test prep • Budgets & expenses: shopping lists, travel costs, and running totals without leaving the page • Recipes: ingredients, steps, portions, and conversions in one place • Events & projects: plan parties, track tasks and costs, brainstorm freely • Fitness & meals: log workouts, calories, and goals • Journaling: mind maps, story layouts, and visual goal boards • DIY: sketch plans, note measurements, and estimate materials • Travel & daily planning: itineraries, checklists, and daily budgets WHY GENIENOTE? • Visual memory: keep key figures right next to your sketches • Zero context switching: no more jumping between a notes app and a calculator • For students, planners, engineers, designers — anyone who thinks in words AND numbers Universal app: runs great on iPhone and iPad, optimized for Apple Pencil.
Screenshots
Verdict
The clearest difference is ads: SimTanka at none against GenieNote's shown. On price, update cadence, 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. SimTanka sells 3 one-off in-app purchases and GenieNote sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | SimTanka | GenieNote |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Vikram Vyas | Leo Rivas-Micoud |
In-app purchases
SimTanka
- Support SimTanka$0.99
- Voluntary Contribution$9.99
- Voluntary Contribution$99.99
GenieNote
- Remove Ads$39.99









