Comparison

Light Rim vs Modstack

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

Head to head
About

Light Rim

Features
Read full description

Light Rim — A Beautiful 3D Light Puzzle Game Guide beams of light through increasingly complex puzzles. Place mirrors to bend the light, prisms to split it into rainbows, and portals to teleport it across the grid. Light up every sprite to solve each level. Features: • 99999+ hand-crafted puzzles with smooth difficulty progression • 3D top-down view with gorgeous lighting and reflections • Mirrors, Prisms, Portals, One-Way Walls, and Color Filters • Split light into multiple beams for complex solutions • Color filters that change beam color — only matching sprites light up • Beautiful warm gold-and-purple visual style • No ads, no timers — relax and solve at your own pace How to Play: • Tap empty cells to place mirrors • Light beams bounce off mirrors at 90° • Prisms split one beam into three • Portals teleport light to a paired portal • Light up all sprites to win From simple reflections to mind-bending multi-color puzzles, Light Rim grows more beautiful with every level you solve.

About

Modstack

Features
Read full description

Modstack is a tactile programming puzzle about making big moves with a small set of commands. Place Move and Turn tiles into a program, stack modifiers to change what they do, then run your machine. Watch the robot execute each step, learn from the result, and compress your solution until it reaches par. WHAT YOU GET - 36 handcrafted campaign circuits across six chapters - A gentle visual introduction to programs, repetition, and mirroring - Ordered relays, switches, gates, and precision Expert Circuits - A new Easy, Medium, and Hard Daily Circuit every day - Layered hints that nudge without giving away the whole solution - Offline play with progress stored on your device - Purpose-built sound and haptic feedback - No ads, no account, and no tracking The Foundations chapter and Easy Daily are free. A single Full Game Unlock opens the remaining 30 campaign circuits plus Medium and Hard Daily. There is no subscription.

Screenshots

Light Rim4 screens
Modstack4 screens

Verdict

The call

The clearest difference is ads: Modstack at none against Light Rim's shown. Modstack also leads on update cadence (every 8 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement 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. Light Rim sells 5 one-off in-app purchases and Modstack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Light Rim ships an update every 6 weeks, Modstack every 8 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 4 level
Light Rim versus Modstack: the parameters behind the verdict, then further details
ParameterLight RimModstack
PriceFreeFree
Update frequencyEvery 6 weeksEvery 8 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size127 MB30 MB
Age rating4+4+
DeveloperCalm Game StudioNovoBuild LLC

In-app purchases

5 purchases

Light Rim

One-time5
  • Beginner Gift$0.99
  • Coins 500$4.99
  • Best Offer$9.99
Show 2 more
  • Coins 1300$12.99
  • Mega Bundle$99.99
1 purchases

Modstack

One-time1
  • Unlock Full Modstack$3.99

Questions

Is Light Rim free?
Light Rim is free to download, with in-app purchases available.
Is Modstack free?
Modstack is free to download, with in-app purchases available.
Do Light Rim or Modstack have ads?
Light Rim shows ads; Modstack does not.
Which is updated more often, Light Rim or Modstack?
Light Rim ships an update every 6 weeks, and Modstack every 8 days. Most recently, Light Rim was updated on October 8, 2026 and Modstack on October 10, 2026.

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