Comparison

RayLab vs LittleVision

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

Head to head
About

RayLab

Design and simulate optical systems with this powerful tool. Explore 2D and 3D models, perform advanced ray tracing, and analyze optical performance. Ideal for learning or professional design.

Highlights
  • 2D/3D optical modeling
  • Geometric ray tracing
  • Sequential and non-sequential analysis
  • Advanced optical elements
  • Polarization ray tracing
  • Design optimization
  • Glass catalogs
Features
Read full description

RayLab is an application for design and simulation of optics. It can be used either as a learning tool or for the design of real optical systems. Basic version includes: • Ability to model 2D lenses and mirrors • Full control over placement and shape of optical components • Full control over aspheric surface shape parameters • Full geometric ray tracing • Sequential and Non Sequential analysis • Front Focal Length, Back Focal Length, Principle Surface calculations • Sample Models Upgrade to RayLab Pro enables: • 3D Modeling • Advanced Optical Elements such as Lens Arrays, Diffraction Gratings, Prisms, Fresnel Lenses, etc. • Polarization Ray Tracing * Ray Splitting / Beam Splitter modeling • Multi-Configuration Manager and animation functionality • Ability to perform optimizations of design parameters • Ray Transfer Matrix calculation • Various commercial glass catalogs • Zemax Importer • Multiple Analysis Windows: -- Fan Ray Diagram. -- Wavefront Error Plot. -- Grid Distortion Plot. -- Spot Diagram. -- Chromatic Aberration. -- Gaussian Spot Size. -- Polarization Analyzer. Upgrade is available with in-app purchases of various modules OR as a full featured subscription. • The subscription offers a 7 day free trial period. Subscription begins immediately but payment will only be charged to iTunes Account at the end of the trial period. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • The account will be charged for renewal within 24-hours prior to the end of the current period, at the same monthly price as the original subscription. • You may manage your subscriptions and auto-renewal may be turned off by going to your iTunes Account Settings after purchase. • No cancellation of the current subscription is allowed during active subscription period. • Any unused portion of a free trial period will be forfeited if the subscription is cancelled. Privacy Policy and Terms of Use: https://www.raymak.com/wp/privacy-policy

About

LittleVision

Features
Read full description

Your baby's world looks nothing like yours. At birth, your newborn sees about 8-12 inches — just far enough to make out your face during feeding. Colors are nearly invisible. Everything beyond arm's reach is a blur. Over the next 12 months, their vision transforms dramatically — and LittleVision lets you see every stage of that journey for yourself. REAL-TIME CAMERA SIMULATION Point your camera at anything and see it the way your baby does right now. LittleVision applies scientifically calibrated filters that model acuity, color perception, contrast sensitivity, depth of field, and peripheral vision — all based on published developmental research. 10 MILESTONES FROM BIRTH TO 12 MONTHS Explore how vision develops at each stage: Newborn, 1 Week, 2 Weeks, 1 Month, 2 Months, 3 Months, 4 Months, 6 Months, 9 Months, and 12 Months. Each milestone includes detailed stats on what your baby can actually see. ACTIVITIES BACKED BY RESEARCH Every milestone comes with age-matched activities you can do today — from face-to-face focus practice to tracking games, tummy time tips, and more. Plus safety reminders and screening awareness notes so you know when to talk to your pediatrician. CURATED DEVELOPMENTAL TOYS Browse toys and tools matched to your baby's current visual abilities — high-contrast cards for newborns, saturated color toys for 2-6 months, depth and detail toys for older babies. Each product links directly to Amazon for easy purchasing. CAPTURE AND SHARE Take photos through any filter and save them to your camera roll. Show grandparents what their grandchild actually sees — it's a conversation starter every time. BUILT ON REAL SCIENCE LittleVision's filters are calibrated using data from over 15 peer-reviewed studies, including work by Norcia & Tyler, Banks & Salapatek, Skelton et al., and more. This isn't guesswork — it's developmental vision science made visual. Privacy-first: LittleVision only uses your camera in real-time. No data is collected, stored, or transmitted. Photos are saved only to your device.

Screenshots

RayLab4 screens
LittleVision4 screens

Verdict

The call

The clearest difference is in-app purchases: LittleVision at none against RayLab's 10. LittleVision also leads on ads (none vs shown). RayLab's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price and update cadence 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. RayLab sells 10 in-app purchases, starting at $3.99 per month. LittleVision asks for nothing beyond the download.

UpkeepUpdate frequency

RayLab ships an update every 6 weeks, LittleVision every 2 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
RayLab versus LittleVision: the parameters behind the verdict, then further details
ParameterRayLabLittleVision
PriceFreeFree
Rating4.7 (67 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings67 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size39 MB6 MB
Age rating4+4+
DeveloperKamyar GhandiIan Roth

In-app purchases

10 purchases

RayLab

Subscriptions1
  • RayLab Pro Subscription7 Days trial$3.991 Month
One-time9
  • RayLab Pro UpgradeFree
  • Schott Glass Catalog$0.99
  • Custom Glass Editor$0.99
Show 6 more
  • Advanced Optical Elements$1.99
  • Source and Lens Arrays$1.99
  • Solver/Optimizer Module$3.99
  • 3D Modeling$4.99
  • RayLab Pro 2$19.99
  • RayLab Pro Bundle$19.99
None

LittleVision

No in-app purchases

Questions

Is RayLab free?
RayLab is free to download, with in-app purchases available.
Is LittleVision free?
LittleVision is free to download, with no in-app purchases.
Do RayLab or LittleVision have ads?
RayLab shows ads; LittleVision does not.
Which is updated more often, RayLab or LittleVision?
RayLab ships an update every 6 weeks, and LittleVision every 2 months. Most recently, RayLab was updated on November 1, 2026 and LittleVision on October 25, 2026.

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