Comparison

Radar Rush vs UBOOTSIM

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

Head to head
About

Radar Rush

Features
Read full description

Welcome to Radar Rush, the ultimate Air Traffic Control (ATC) simulator that will test your nerves, reflexes, and strategic thinking! Step into the control tower and take command of the busiest airspaces in the world. Your mission is simple but highly addictive: guide incoming and outgoing flights safely on the radar, avoid mid-air collisions, and manage the chaos of global aviation. Do you have what it takes to be an elite ATC Commander? FEATURES: - Authentic Radar Interface: Immerse yourself in a classic, high-tension radar sweep environment. - Global Airports: Unlock and manage different airspaces with increasing difficulty and massive traffic volume. - Commander Ranks: Earn global score points, climb the tiers, and prove you are the ultimate flight director. - High-Stakes Action: Every second counts. One wrong vector, and it’s game over. - Immersive Audio: Feel the tension with authentic crowd ambiance and system alerts. Whether you are an aviation enthusiast, a wannabe pilot, or just looking for a highly addictive strategy game, Radar Rush will keep you glued to the screen. The skies are full. The radar is spinning. Take control now!

About

UBOOTSIM

Command a World War II submarine in the Strait of Gibraltar. Hunt, strike, and survive enemy convoys and escorts using realistic periscopes, torpedo computers, and deck guns. Experience the sounds and sensations of underwater combat.

Highlights
  • Realistic periscope and binoculars with zoom
  • Hydrophone for detecting enemy propellers
  • Tactical chart for navigation and target tracking
  • Torpedo Data Computer (TDC) for accurate firing solutions
  • Deck gun for surface combat
  • Stealth mechanics to evade escorts
  • Immersive sound design and U-boat sensations
Features
Read full description

November 1941. The Strait of Gibraltar. You command a Type VIIC U-boat: 67 metres of steel, four bow tubes and one at the stern. On the horizon, smoke from a convoy: five freighters and a tanker, guarded by a destroyer and two corvettes. Your mission: sink as much tonnage as you can and make it home alive. UBOOTSIM is a World War II submarine simulator made to be enjoyed at your own pace. Every attack is a small game of chess between you, the convoy and its escorts. HUNT - Attack periscope and bridge binoculars, with 1.5× to 6× zoom, a bearing scale and an automatic 360° sweep. - A living daylight sea: swell, whitecaps, clouds, sun glitter and funnel smoke that gives the convoy away long before its hulls. - Hydrophone to hear propellers while submerged: slow, heavy merchants and fast escorts. An audible alarm sounds for every new contact. - Tactical chart of the Strait with its coastline, grid, bearing ring, contacts and wakes. Tap a point and the helm and periscope turn towards it. STRIKE - Lock the target, take bearing and range marks and let the Torpedo Data Computer (TDC) find the solution. When the button turns green: fire! - Fine-tune the target's range, course and speed by hand, or switch on the automatic TDC for a more relaxed game. - Spreads of 1, 2 or 4 torpedoes, a stern tube and real-time reloading, one tube at a time. - Follow every torpedo with its wake, its countdown and a tracking window that zooms in for the last seconds. And, just as in 1941, some pistols fail. - On the surface, the 8.8 cm deck gun: tap the ship, wait for the green ring and fire. The crew corrects their aim with every hit. SURVIVE - After the first hit the convoy raises the alarm, turns and speeds up, and the escorts come after you with ASDIC and depth charges. - Go below the thermal layer, run silent, change course after every pass and keep an eye on your hull and battery. - Underwater side view: your U-boat angled as it dives, enemy hulls above you with the metres beneath their keels, and depth charges falling and bursting all around. - While you run on the surface a patrol aircraft may appear. If it spots you, it attacks and radios the destroyer. Dive in time… or shoot it down with the deck gun. A SUBMARINE YOU CAN FEEL - Diving depends on your speed: at full ahead the boat dips its bow and goes down at an angle; stopped, it barely sinks. - Alarm bell and the call of "Dive! Dive!" as you submerge, and "Surface! Surface!" as you come up. - Diesels rumbling on the surface and electric motors humming underwater, higher-pitched the faster you go. - The blast of compressed air at launch, the whistle of running torpedoes, explosions, ASDIC pings against the hull and depth charges that grow louder the closer they burst. SHIPS WITH CHARACTER - Freighters from different shipping lines, with coloured funnels, lifeboats and cargo derricks. - A long, low tanker: the big prize. - A fast, camouflaged destroyer with four guns, and two corvettes that never stop circling the convoy. - The more you zoom, the more you see: windows, flags, pennant numbers on the bow and fires when you hit them. FOR EVERY COMMANDER - Time compression from 1× to 32×, dropping back to 1× automatically at any danger. - "Show all ships" mode to learn the game. - Built-in quick guide in English and Spanish. - Scalable display: stretched to fill the window or proportional, as you prefer. - For iPhone, iPad and Mac, with a native Mac version and keyboard controls. Ship names are fictional. UBOOTSIM is a game: it simplifies reality to make it playable, while staying true to how war at sea was fought in 1941. Good hunting, Commander!

Screenshots

Radar Rush4 screens

Verdict

The call

The clearest difference is ads: UBOOTSIM at none against Radar Rush's shown. Radar Rush's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Radar Rush ships an update every 5 days, UBOOTSIM every 4 days. The most recent releases landed on October 9, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 7 level
Radar Rush versus UBOOTSIM: the parameters behind the verdict, then further details
ParameterRadar RushUBOOTSIM
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 5 daysEvery 4 days — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size69 MB12 MB
Age rating4+12+
DeveloperPayal SharmaPablo Kessler Saiz

In-app purchases

None

Radar Rush

No in-app purchases

None

UBOOTSIM

No in-app purchases

Questions

Is Radar Rush free?
Radar Rush is free to download, with no in-app purchases.
Is UBOOTSIM free?
UBOOTSIM is free to download, with no in-app purchases.
Do Radar Rush or UBOOTSIM have ads?
Radar Rush shows ads; UBOOTSIM does not.
Which is updated more often, Radar Rush or UBOOTSIM?
Radar Rush ships an update every 5 days, and UBOOTSIM every 4 days. Most recently, Radar Rush was updated on October 9, 2026 and UBOOTSIM on October 26, 2026.

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