Comparison

Atomicom vs Odin's Drop 4+

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

Head to head
About

Atomicom

Features
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Space is young, dark and scattered. Atoms drift alone, touching nothing, and in all that emptiness not one thing has ever been built. No water. No stone. No star with a planet worth the name. That is what you are here to change. Atomicom is a puzzle game about binding matter together. Atoms come to you one at a time. Place them on the board, let their loose electrons find a partner, and when every electron in a connected group has one, the molecule is finished: it holds, it leaves the board, and the universe keeps a piece of itself that did not exist a moment ago. HOW IT PLAYS • An atom arrives in the glass cylinder below the board. Take it and drop it on any free square. • Atoms bond with the neighbours above, below, left and right of them. Never diagonally. • A green atom has one electron to give, yellow has two, orange three, red four. Blue atoms give nothing at all: they only take up room you were going to need. • Satisfy every electron in a connected group and the molecule forms and goes. • Run out of squares, or let the cylinder overflow, and the mission ends there. 300 MISSIONS The board starts wide and gets smaller: twelve squares across, then ten, then eight, then a six by six where there is nowhere left to be careless. Every mission asks more than the one before it — more molecules, more obstacles in the way, heavier atoms that need more neighbours before they are satisfied — and every time the board shrinks you begin again at something gentle and climb back up. MADE TO BE PLAYED BY EVERYONE Atomicom is made by Tyflos Accessible Software. Accessibility here is not a switch in the settings, it is how the game is built. • Fully playable with VoiceOver, from the first tap to the last molecule. Nothing has to be seen. • Every square tells you its coordinate, what is on it and how many electrons are still free: "A2, red, 3 free bonds". • The sound tells you where. An atom bonding on the left is heard on the left, and the top of the board sounds higher than the bottom, so the board has a shape you can hear. • Everything that happens without you touching it is spoken: an atom arriving, a molecule finished, a move the rules will not allow and why not. • Vibration answers every move, soft for an atom placed and hard for a molecule completed. • Drag if you like, or tap the atom and then the square. Both always work. • Dynamic Type throughout, and Reduce Motion and Reduce Transparency are obeyed. • Choose your own background, square borders and cylinder colour, and the game tells you when a colour you picked is too faint to make out. ALSO • Play in seventeen languages. • Made for iPhone and iPad. • Your game saves itself: leave in the middle of a mission and pick it up later. • A table of your best games, kept on your device. FREE, AND WHAT COSTS MONEY • The first ten missions are free, with advertising. • "All levels" is a one-off purchase that opens the three hundred. The advertising stays. • "No ads" is a second one-off purchase that removes the banner. It needs "All levels" first. The universe is not going to assemble itself. Start with two atoms.

About

Odin's Drop 4+

Features
Read full description

No Ads, No Subscriptions, No Tracking. Odin’s Drop 4+ is the drop game four ways, from three in a row on a small board made for young players to six in a row across eleven columns. Pick a column and your coin falls as far as it can. One price, the whole game. No in-app purchases, no third-party ads, and no tracking. PLAY TOGETHER, YOUR WAY Live online: challenge a friend and trade moves in real time. Turn-based online: play at your own pace without being online together. Nearby: connect device to device and play without a Game Center account. Pass & Play: share one screen and take turns. In a live or nearby rematch the sides swap, so nobody keeps the opening. Online matches use Game Center. Turn notifications and a Home Screen widget show when you have moves waiting, and Siri can continue your game. OPTIMIZED FOR IPHONE DUO Open the phone and the board fills the inner display; close it and your game carries on, on the outer display, right where you were. FOUR BOARDS, ONE RULE Drop a coin and it falls to the lowest free cell in its column. Line up enough of your coins in a row, column, or diagonal and you win; a full board with no line is a draw. Drop Three: five columns, five rows, three in a row. Made for the youngest players. Drop Four: seven columns, six rows, four in a row. The classic. Drop Five: nine columns, seven rows, five in a row. More room, longer plans, and a single threat is never enough. Drop Six: eleven columns, eight rows, six in a row. A long game of threats stacked on threats. Bigger boards are worth more XP. HOUSE RULES Runestones: a few neutral runestones land on the board before play. Every game opens from a different position, and no line runs through a stone. Undertow: on your turn, drop a coin or pull one of your own from the bottom row, and the whole column sinks. A full board is not the end; when a position repeats three times, the game is a draw. Turn either one on, or both, from House Rules on the main menu. They work in every mode, and a turn-based or nearby invitation names them before your friend accepts. A NEW PAIR OF COINS EVERY GAME The coins are painted Viking portraits, a hundred of them from the longhouse of Odin’s Viking Chess, and every game deals a fresh pair. Or pick another look in Settings: engraved faces, Viking runes or checkers pieces. FIND YOUR CHALLENGE Play solo against four computer strengths: Easy, Medium, Hard, and Expert. Get comfortable with a new board, then raise the difficulty when you’re ready. Every board can be won. Want a nudge? The coach suggests a column and can point out an immediate win or a way to avoid an immediate loss. Undo during local play lets you try another approach, and the Video Instructions and How to Play teach every board. MAKE YOUR PROGRESS COUNT Earn XP, climb the ranks from Wanderer to Grand King, and pursue 23 achievements and 10 Game Center leaderboards. Your games save as you play, and iCloud carries them to your other devices. A PLACE AT THE BOARD An oak board, painted coins, and Longhouse gold bring the world of Odin’s Checkers to the drop game. One purchase plays it on iPhone, iPad, Apple TV and Mac, in 50 languages, with VoiceOver and Dynamic Type. Made by the team behind Odin’s Checkers, Squared², Odin’s Tic-Tac-Toe, Odin’s Viking Chess, and Odin’s Reversi. The only promotions you’ll see are for our own games. Choose a board. Drop a coin. See who wants the rematch.

Screenshots

Atomicom4 screens
Odin's Drop 4+4 screens

Verdict

The call

The clearest difference is price: Atomicom at Free against Odin's Drop 4+'s $1.99. Atomicom also leads on update cadence (daily vs every 3 weeks). Odin's Drop 4+'s advantage is in-app purchases (none vs 2) and ads (none vs shown).

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

Atomicom is free to download; Odin's Drop 4+ costs $1.99 up front. Atomicom sells 2 one-off in-app purchases. Odin's Drop 4+ asks for nothing beyond the download.

UpkeepUpdate frequency

Atomicom ships an update daily, Odin's Drop 4+ every 3 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 0 level
Atomicom versus Odin's Drop 4+: the parameters behind the verdict, then further details
ParameterAtomicomOdin's Drop 4+
PriceFree — better$1.99
Update frequencyDaily — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, Mac, Apple TV — better
Requires iOS26.017.0 — better
Further details — not scored
Size47 MB19 MB
Age rating4+4+
DeveloperJonathan Chacon BarberoHOLLENDER CONSULTING LLC

In-app purchases

2 purchases

Atomicom

One-time2
  • All levels$1.00
  • No ads$1.00
None

Odin's Drop 4+

No in-app purchases

Questions

Is Atomicom free?
Atomicom is free to download, with in-app purchases available.
Is Odin's Drop 4+ free?
Odin's Drop 4+ costs $1.99, with no in-app purchases.
Do Atomicom or Odin's Drop 4+ have ads?
Atomicom shows ads; Odin's Drop 4+ does not.
Which is updated more often, Atomicom or Odin's Drop 4+?
Atomicom ships an update daily, and Odin's Drop 4+ every 3 weeks. Most recently, Atomicom was updated on October 31, 2026 and Odin's Drop 4+ on November 6, 2026.

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