Comparison

Perfect Eye vs Slice

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

Head to head
About

Perfect Eye

Explore an anatomically accurate 3D model of the human eye. This interactive tool is designed for clinical, educational, and research purposes, offering detailed insights for professionals and students alike. It provides a comprehensive visual resource for understanding eye anatomy and conditions.

Highlights
  • Anatomically accurate 3D eye model
  • Interactive exploration
  • Developed by ophthalmologists
  • Peer-group tested
  • Clinical applications
  • Educational resource
  • Patient information tool
Read full description

Perfect Eye from Orbitology is the first anatomically accurate interactive 3D virtual human eye. Developed by world leading ophthalmologists and peer group tested, it has a wide range of applications including clinical, education, patient information, research and communications and marketing.

About

Slice

Read full description

Slicer-AR is an interactive visualisation tool designed for exploring 3D medical data such as MRI scans. The app allows users to define custom cross-section planes by simply moving their device, offering a new way to navigate and understand volumetric datasets beyond traditional views. This intuitive approach supports dynamic, real-time exploration of complex anatomical structures, making it ideal for educational, research, and demonstration purposes. Note: This app is not intended for diagnosis or clinical decision-making. UI optmised for iPad

Screenshots

Perfect Eye4 screens
Slice3 screens

Verdict

The call

The clearest difference is in-app purchases: Slice at none against Perfect Eye's 3. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Perfect Eye sells 3 in-app purchases, starting at $29.99 per month. Slice asks for nothing beyond the download.

UpkeepUpdate frequency

Perfect Eye ships an update monthly, Slice every 2 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 8 level
Perfect Eye versus Slice: the parameters behind the verdict, then further details
ParameterPerfect EyeSlice
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size377 MB288 MB
Age rating17+4+
DeveloperORBITOLOGY LTDRoy Rodenhauser

In-app purchases

3 purchases

Perfect Eye

Subscriptions3
  • Free Month, Monthly Plan1 Month trial$29.991 Month
  • Yearly Plan With Free Month1 Month trial$149.991 Year
  • Free Month, Yearly Plan1 Month trial$249.991 Year
None

Slice

No in-app purchases

Questions

Is Perfect Eye free?
Perfect Eye is free to download, with in-app purchases available.
Is Slice free?
Slice is free to download, with no in-app purchases.
Do Perfect Eye or Slice have ads?
Neither Perfect Eye nor Slice shows ads.
Which is updated more often, Perfect Eye or Slice?
Perfect Eye ships an update monthly, and Slice every 2 months. Most recently, Perfect Eye was updated on October 8, 2026 and Slice on October 11, 2026.

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