Fast Chess! vs Submersible
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fast Chess!
Experience a faster, more dynamic chess game on a compact 6x6 board. Perfect for quick thinking and sharp strategy, this app offers balanced matches against opponents suited to your skill level. Ideal for both enthusiasts and casual players seeking a fresh twist on the classic game.
- Unique 6x6 chess board
- Short, intense matches
- Balanced opponent matching
- Clean, minimalist design
- Ideal for quick breaks
- Daily practice
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6x6 Chess is a fast-paced chess experience designed for quick thinking and sharp strategy. With a compact board and shorter matches, every move matters more than ever. Play balanced matches against an opponent matched to your level, helping you sharpen your tactical instincts and decision-making. Perfect for players who love chess but want faster, more dynamic gameplay. Features: Unique 6x6 chess board format Short, intense matches Balanced opponents for fair gameplay Clean, minimalist design Ideal for quick breaks and daily practice Whether you're a chess enthusiast or a casual player, 6x6 Chess delivers a fresh and challenging twist on the classic game. Think faster. Play smarter. Win quicker.
Submersible
Engage in a 3D submarine strategy game where you hunt and sink enemy vessels. Utilize depth charges, torpedoes, and sonar across a fully three-dimensional battlefield. Compete in daily challenges and real-time multiplayer matches.
- 3D tactical battlefield
- Multiple weapon types (depth charges, torpedoes, sonar)
- Daily tactical challenges
- Real-time multiplayer via Game Center
- Achievements and leaderboards
- Three difficulty levels
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Hunt enemy submarines in three dimensions. Deploy depth charges, fire torpedoes, ping with sonar - and sink them before they sink you. The classic guessing game has gone three-dimensional. In Submersible, enemy subs hide across width, length, AND depth — turning every shot into a calculated risk and every match into a tactical hunt. Your mission: locate the enemy fleet and destroy it before they destroy yours. • THREE WEAPONS Depth charges for area damage. Torpedoes for straight-line strikes. Sonar to reveal entire depth layers. Each turn is a choice between aggression and intel — and detection is not destruction. • HUNT IN 3D Rotate the tactical grid. Zoom into any depth layer. Track enemy contacts across a fully three-dimensional battlefield. • DAILY OPERATIONS A new tactical challenge every day. Six rotating variants — from Piranha Party (all small subs, all fast) to Standoff (the only daily where you're trying to miss). Climb the global leaderboards and protect your streak. • THREE DIFFICULTIES Easy, Normal, and Hard AI. The fleet is the same. The hunter is not. • MULTIPLAYER VIA GAME CENTER Real-time matches against friends or random opponents. Same rules. Same depths. Different commander on the other side. • ACHIEVEMENTS & LEADERBOARDS Twenty-four achievements to unlock. Track your accuracy, your streaks, your fleet's survival rate. Earn the rank of Fleet Admiral — or just have one more match. Your fleet awaits, Commander. The Republic is counting on you.
Screenshots
Verdict
The clearest difference is review sentiment: Submersible at 100% against Fast Chess!'s 0%. Submersible also leads on rating (5.0 vs 3.5) and update cadence (every 2 days vs fortnightly). Fast Chess!'s advantage is iOS requirement (12.0 vs 26.1). 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. Fast Chess! sells 5 one-off in-app purchases and Submersible sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Submersible holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Fast Chess!'s written reviews are positive against 100% of Submersible's.
Fast Chess! ships an update fortnightly, Submersible every 2 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | Fast Chess! | Submersible |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 129 MB | 69 MB |
| Age rating | 4+ | 12+ |
| Developer | Oksana Voloshyna | Nicholas Johnson |
Customer experience
Fast Chess!
Submersible
In-app purchases
Fast Chess!
- Hints package$1.99
- Hints package (5)$2.99
- Hints package (10)$3.99
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- Hints package (20)$4.99
- Hints package (30)$5.99
Submersible
- Submersible Pro2 variants$4.99









