fiilX vs Cross Sum Mania
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
fiilX
This game introduces toddlers to touchscreens with a simple coloring activity. Players tap pixels to complete levels, with pixels becoming smaller to improve touch accuracy. Completing all levels unlocks a surprise.
- Touchpoint accuracy training
- Coloring activity
- Progressively smaller pixels
- Unlockable surprise
- Simple interface
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pron. [fee-liks] Latin for happy or lucky fiilX is an ideal first app for toddlers. Introduce your child to the wonderful world of touchscreens through this simple game. It combines the thrill of completing a colouring-in with simple touch point accuracy training. play: Choose a colour. Touch all the piXels on the screen to light them up and complete the level. piXels get progressively smaller with each level to help practice touch accuracy. Completing all the levels reveals a fun surprise! inspiration: After watching my son struggle with small touch buttons, I built fiilX to help him practice his touchscreen accuracy. promise: I’m not into apps designed for children that have unnecessary ads or ugly interfaces. fiilX is elegant and minimal – it does one simple task and does it well. hint: Shake your device to restart.
Cross Sum Mania
Solve challenging number puzzles by completing overlapping equations. Use digits 1-9 once per puzzle to fulfill both horizontal and vertical math problems. This free game offers a fun and mentally stimulating experience.
- Overlapping horizontal and vertical equations
- Uses digits 1-9 once per puzzle
- Requires completion of all equations
- Challenging logic gameplay
- Free to play
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A Cross Sum puzzle consists of 6 overlapping equations, 3 horizontal equations and 3 vertical equations. Each equation consists of three digits and two operations. The solution to each equation is given. To solve the puzzle you must complete each equation. The digits 1-9 are used ONLY ONCE in every puzzle. This game is more challenging than you might think. It's fun and it's FREE!
Screenshots
Verdict
The clearest difference is rating: Cross Sum Mania at 5.0 against fiilX's 1.0. Cross Sum Mania also leads on update cadence (every 3 weeks vs every 2 months). fiilX's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cross Sum Mania holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
fiilX ships an update every 2 months, Cross Sum Mania every 3 weeks. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.
| Parameter | fiilX | Cross Sum Mania |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 0 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Steve Berrick | Gilbert Gonsalves |
Customer experience
fiilX
Cross Sum Mania
In-app purchases
fiilX
No in-app purchases
Cross Sum Mania
No in-app purchases
