Four Arithmetic Operations vs lumen.
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Four Arithmetic Operations
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“Four Arithmetic Operations” is a free game application. Choose the arithmetic operator(＋−×÷), as expression is correct .
lumen.
Solve intricate puzzles using light, lenses, and mirrors in a charming attic setting. Restore antique inventions with hundreds of family-friendly levels designed for all ages. Enjoy beautiful graphics and a soothing soundtrack.
- Light, lens, and mirror puzzles
- Hundreds of well-designed levels
- Family-friendly gameplay
- Cross-device save functionality
- Beautiful graphics and music
- Easy to learn, hard to master
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lumen. is a puzzle game with unique mechanics where you solve levels using light, lenses, and mirrors. You’ll find yourself in an old attic, discovering the mysterious antique box of Ms. Olivia McLumen — a great inventor who lived in Scotland over a hundred years ago. She preserved her inventions in cinematic frames for you to restore. HUNDREDS OF WELL-DESIGNED FAMILY-FRIENDLY LEVELS Use lights, lenses, and mirrors to solve a variety of levels, from easy to challenging. lumen. is family-friendly and suitable for players of all ages. EASY TO LEARN, HARD TO MASTER The game is easy to pick up and play at any time, whether for short or long sessions, on any Apple device with cross-device save functionality. BEAUTIFUL GRAPHICS, MUSIC & SOUND EFFECTS Dive into a fascinating atmosphere of soothing piano and saxophone melodies within a handcrafted 1800s box, and enjoy all the small details carved within. Enjoy our game! Lykke Studios Team
Screenshots
Verdict
The clearest difference is price: Four Arithmetic Operations at Free against lumen.'s $3.99. Four Arithmetic Operations also leads on iOS requirement (7.1 vs 13.0). lumen.'s advantage is device support (5 vs 2). On ads and in-app purchases 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
Four Arithmetic Operations is free to download; lumen. costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Four Arithmetic Operations | lumen. |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | — | 4.8 (41 ratings) — better |
| Positive reviews | — | 83.3% of reviews |
| Number of ratings | — | 41 — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac, Apple TV — better |
| Requires iOS | 7.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 507 MB |
| Age rating | 4+ | 4+ |
| Developer | Yu Saito | Lykkegaard Europe Limited |
In-app purchases
Four Arithmetic Operations
No in-app purchases
lumen.
No in-app purchases
Questions
Is Four Arithmetic Operations free?
Is lumen. free?
Do Four Arithmetic Operations or lumen. have ads?
Other comparisons
