Comparison

Osmosis Solitaire vs Greyfeather

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

Head to head
About

Osmosis Solitaire

This solitaire game offers a fresh take on the classic card-matching challenge. It features two distinct rule sets: traditional and a more strategic version with caching mechanics. The goal is to promote all cards to their respective suit columns.

Highlights
  • Promote cards to suit columns
  • Traditional solitaire rules
  • Strategic solitaire rules with caching
  • Two passes through the deck (strategic)
  • Completely free to play
Features
Read full description

Osmosis is a different kind of solitaire game. Totally free! No in-app purchases. The objective is to promote all cards onto the board. The board has four columns, one for each suit. Cards that match the suit of the first column can be promoted at any time. You cannot promote a card to the other columns unless the card of the same rank is populated to the immediate left. TRADITIONAL RULES: With traditional rules there are four piles of reserve cards with four cards each. Only the top card may be played. You can cycle through the deck three cards at-a-time as many times as you like. STRATEGIC RULES: The traditional rules don't allow for much decision making or strategy so MmpApps added a more strategic version of the game. In the strategic version rather than having reserve piles you get four empty cache spots that can hold one card each. You get two passes through the deck three cards at-a-time to win the game. The trick is to cache the right cards at the right time to allow you to promote other cards.

About

Greyfeather

Features
Read full description

Greyfeather: A Fable of Wings and Silence is a choice-driven interactive story set in a remote mountain relay station during a snowstorm. A young messenger arrives injured. A raven carries the only thread of hope. An old featherwright recognizes more than he admits. As the story unfolds, your decisions change trust, reveal clues, raise or lower danger, and guide the route toward one of multiple endings. Features: - Five-act interactive story built around cinematic scenes and illustrated moments. - Meaningful choices that affect trust, raven condition, threat pressure, and truth progress. - Branch history and chapter flow designed for replay. - Atmospheric music and a focused single-player experience. - Works offline with story resources included in the app.

Screenshots

Osmosis Solitaire4 screens
Greyfeather4 screens

Verdict

The call

The clearest difference is ads: Greyfeather at none against Osmosis Solitaire's shown. Greyfeather also leads on update cadence (every 10 days vs every 6 months). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Osmosis Solitaire ships an update every 6 months, Greyfeather every 10 days. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
Osmosis Solitaire versus Greyfeather: the parameters behind the verdict, then further details
ParameterOsmosis SolitaireGreyfeather
PriceFreeFree
Rating2.0 (7 ratings) — better—
Positive reviews20.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 6 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size17 MB308 MB
Age rating4+4+
DeveloperMmpApps Corp.Thomas modest

In-app purchases

None

Osmosis Solitaire

No in-app purchases

None

Greyfeather

No in-app purchases

Questions

Is Osmosis Solitaire free?
Osmosis Solitaire is free to download, with no in-app purchases.
Is Greyfeather free?
Greyfeather is free to download, with no in-app purchases.
Do Osmosis Solitaire or Greyfeather have ads?
Osmosis Solitaire shows ads; Greyfeather does not.
Which is updated more often, Osmosis Solitaire or Greyfeather?
Osmosis Solitaire ships an update every 6 months, and Greyfeather every 10 days. Most recently, Osmosis Solitaire was updated on October 11, 2026 and Greyfeather on October 13, 2026.

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