Comparison

Zilch Solitaire vs OFC Fantasy Optimizer

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

Head to head
About

Zilch Solitaire

A unique solitaire card game where players combine black and red cards to reach a total of zero. It features a scoring system that syncs across devices and supports multitasking on iPads.

Highlights
  • Combine black and red cards to reach Zilch
  • Helper cards for strategic play
  • Jokers remove all cards
  • Visual feedback for valid moves
  • High score tracking via Game Center
  • Cross-device high score syncing
  • iPad split-screen multitasking support
Features
Read full description

Addicting! The goal of the game is to remove all the cards in the blue, cards in the yellow are just helper cards.  Jokers remove all cards.  How do you remove cards you might ask? Well combine black suit card values (Spade and Club) with red suit values (Heart and Diamond) to add up to Zilch! So as an example, combine a black King (value of 13) with a red 8, 2, and a 3.  Make sense?  The app helps you by showing the current values of the cards you have selected, and even turns green when you can remove the cards! Here's a few other tidbits of info.  The game saves your high score to Game Center so you can compare against your friends, and the rest of the world.  Have multiple devices? The game will pull down and sync your high score across all your devices.  Also, it supports the new split screen multitasking feature for iPads, so while you browse the internet, you can leisurely play Zilch too!

About

OFC Fantasy Optimizer

Features
Read full description

The ultimate fantasy mode analysis and training tool for Open Face Chinese Poker (OFC) players. “Which placement generates the highest royalty?” “Should I discard this card or keep it?” Our AI solver instantly evaluates millions of combinations and proposes the theoretical optimal arrangement. 【Key Features】 • AI Solver: Input your hand and board to get the highest‑scoring placement instantly. • Training Mode: Practice with randomly dealt hands and compare your moves with the AI. • Detailed Scoring: Accurate calculation of royalties, hand values, and fouls. • Multi‑language Support: Fully supports both Japanese and English. 【Premium Plan (Subscription)】 • Unlimited calculations (removes daily limits) • Ad‑free experience • Full access to Training Mode features Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Zilch Solitaire4 screens
OFC Fantasy Optimizer3 screens

Verdict

The call

The clearest difference is in-app purchases: Zilch Solitaire at none against OFC Fantasy Optimizer's 3. Zilch Solitaire also leads on iOS requirement (8.0 vs 15.0). OFC Fantasy Optimizer's advantage is update cadence (every 3 days vs every 4 months). On price, 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. OFC Fantasy Optimizer sells 3 in-app purchases, starting at $2.99 per 7 days. Zilch Solitaire asks for nothing beyond the download.

UpkeepUpdate frequency

Zilch Solitaire ships an update every 4 months, OFC Fantasy Optimizer every 3 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Zilch Solitaire versus OFC Fantasy Optimizer: the parameters behind the verdict, then further details
ParameterZilch SolitaireOFC Fantasy Optimizer
PriceFreeFree
Rating3.6 (7 ratings) — better—
Positive reviews32.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 4 monthsEvery 3 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size116 MB19 MB
Age rating4+17+
DeveloperHarden Consulting LLCKENTA YASUDA

In-app purchases

None

Zilch Solitaire

No in-app purchases

3 purchases

OFC Fantasy Optimizer

Subscriptions2
  • プレミアム (週間)$2.997 Days
  • プレミアム (月間)$5.991 Month
One-time1
  • 一生買い切りプラン$99.99

Questions

Is Zilch Solitaire free?
Zilch Solitaire is free to download, with no in-app purchases.
Is OFC Fantasy Optimizer free?
OFC Fantasy Optimizer is free to download, with in-app purchases available.
Do Zilch Solitaire or OFC Fantasy Optimizer have ads?
Both Zilch Solitaire and OFC Fantasy Optimizer show ads.
Which is updated more often, Zilch Solitaire or OFC Fantasy Optimizer?
Zilch Solitaire ships an update every 4 months, and OFC Fantasy Optimizer every 3 days. Most recently, Zilch Solitaire was updated on November 6, 2026 and OFC Fantasy Optimizer on November 5, 2026.

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