Comparison

Prism vs Shade Compass

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prism

Features
Read full description

Offline AI in your pocket. Prism is a native AI workspace for iPhone, iPad, and iPhone Duo. Run models on your own hardware with Apple Intelligence or Prism’s custom llama.cpp engine. Download models directly in Prism or import compatible GGUF files. Your conversations, model files, and settings stay on your device. No account, subscription, or cloud inference service required. Control your inference Use Metal GPU acceleration with supported models and configure how they run. Adjust context length, response limits, batch size, temperature, Top-P, Top-K, and repeat penalty. Define your own system prompt and inspect prompts in Developer Mode. Explore local models Browse a curated library of compact text, reasoning, and vision models. Download models in the background or import compatible GGUF files from Files and HTTPS URLs. Attach images with supported vision models. Measure performance Track generation speed in tokens per second, token counts, and generation duration. Review performance trends and compare runs across your local models. Keep your work close Search and reopen saved conversations, review formatted responses and inline reasoning, and export transcripts as Markdown or JSON. Thinking duration is shown for supported models. Built for Apple devices Work in a focused native interface with layouts adapted to iPhone, iPad, and iPhone Duo. Available in English, German, and Turkish. Once your chosen model is downloaded and ready, inference works offline. Internet access is required for model downloads and catalog updates. Prism does not collect analytics or telemetry. Requires iOS 26 or iPadOS 26 or later. Apple Intelligence requires a supported device and must be enabled. Model compatibility, image support, and performance depend on the selected model and available device memory.

About

Shade Compass

Visualize the sun's path and your shadow's position throughout the day. Plan outdoor activities, photography, or gardening with augmented reality features and detailed celestial data.

Highlights
  • Live sun and shadow visualization
  • Augmented reality sun path
  • Object shadow casting
  • 24-hour time scrubber
  • Golden hour and twilight alerts
  • Moon and planet tracking
  • Seasonal sun path analysis
Features
Read full description

See where the sun will be, where your shadow will fall, and exactly where the shade lands — at any hour, at any spot on earth. Then keep going: garden planning, fishing and hunting windows, UV, air quality, tides, golden hour, and the night sky. Point your phone and the live compass orients to the world around you. Sun direction and altitude sit right on the dial, your shadow is drawn opposite it at true length, and sunrise and sunset are marked at the exact bearings they cross the horizon — with times corrected for the ridge in front of you, not just the flat math horizon. Drag the time scrubber and watch the whole day play out — perfect for a campsite, a patio, a photo shoot, a garden bed, or the shady side of a trail. SEE THE SHADE IN AUGMENTED REALITY • Point the camera and watch the sun's real path trace across your actual yard • Drop a tree, canopy, umbrella, vehicle, pergola, or solar panel and see its true cast shadow • Play a sunrise-to-sunset time-lapse and watch the shade sweep the scene • Tap any spot to read its hours of direct sun — today, or averaged across the year • Scan the whole yard for a full sun-and-shade map (iPhone Pro models with LiDAR) FOR THE GARDEN • "What grows here" — plants scored against your hardiness zone, soil, and measured sun • Frost-anchored planting windows: start indoors, direct sow, transplant, harvest • Projected harvest date and frost margin before you commit to a seed • Lock in a grow plan and push its reminders to your calendar in one tap • Watering guidance from rainfall, evapotranspiration, and a running soil-water balance • A household planner that sizes a garden to actually feed your family FOR ANGLERS, HUNTERS, AND SURFERS • Best Times windows for trout, bass, big game, birds, small game, and surf • Built from sun and moon position, season, and light at your exact coordinates • Fly hatch charts by region, lures with how to fish them, and a reading-water guide • Knot library with step-by-step instructions and a 200-term field glossary • Tides from NOAA harmonic data, plus buoy wave height, period, and direction • River flow and water temperature wherever there's a gauge nearby FOR PHOTOGRAPHERS AND STARGAZERS • Golden hour, blue hour, civil, nautical, and astronomical twilight, and true dark • Sunset quality scored from the cloud layers overhead before you drive out • Starting exposure for the light you're in, plus light direction and polarizer guidance • Moon phase, rise, set, and bearing; visible planets and an AR planet finder • Milky Way, meteor, and aurora windows, with live Kp and solar activity A WEATHER APP BUILT FOR BEING OUTSIDE • Current, hourly, and 10-day, plus a 7-day strip you build from 23 metrics • UV burn timer tuned to your skin type, with safer windows • Air quality with a likely cause — wildfire smoke, ozone, a winter inversion • Weather alerts, frost warnings, and a Lock Screen rain nowcast where available • Thirty years of local storm history and the months that carry the most risk • A plain-language read on whether today is actually worth going outside for ON YOUR WRIST, LOCK SCREEN, AND HOME SCREEN • Apple Watch app — dial, today, live conditions, and best times — plus complications • Widgets for sun, shadow, moon, UV, and the day ahead • Live Activities for golden hour, rain, UV burn, and your next prime window • Ask Siri for a shade report anywhere ANYWHERE, EVEN OFFLINE • Sun, moon, shadow, planting, and every field guide compute on the device itself • 32,000 cities offline, exact coordinates, dropped pins, saved places carried by iCloud • Any date, past or future — plan an October trip, or compare June to December • Month-by-month daylight hours, sun path, and bearings across the whole year One purchase covers iPhone and Apple Watch. No ads. No accounts. No subscriptions. No tracking. No data collection. Just the sun, your shadow, and a straight answer about the day ahead. Frequent and Responsive updates for feature requests and bug fixes!!

Screenshots

Prism4 screens
Shade Compass4 screens

Verdict

The call

The clearest difference is price: Prism at Free against Shade Compass's $0.99. Shade Compass's advantage is update cadence (every 10 days vs every 6 months) and iOS requirement (18.0 vs 26.0). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

Prism is free to download; Shade Compass costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Prism ships an update every 6 months, Shade Compass every 10 days. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Prism versus Shade Compass: the parameters behind the verdict, then further details
ParameterPrismShade Compass
PriceFree — better$0.99
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS26.018.0 — better
Further details — not scored
Size23 MB1.2 GB
Age rating12+4+
DeveloperKerem COLAKIra Seferovich

In-app purchases

None

Prism

No in-app purchases

None

Shade Compass

No in-app purchases

Questions

Is Prism free?
Prism is free to download, with no in-app purchases.
Is Shade Compass free?
Shade Compass costs $0.99, with no in-app purchases.
Do Prism or Shade Compass have ads?
Neither Prism nor Shade Compass shows ads.
Which is updated more often, Prism or Shade Compass?
Prism ships an update every 6 months, and Shade Compass every 10 days. Most recently, Prism was updated on October 25, 2026 and Shade Compass on October 10, 2026.

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