Comparison

Traffic Flow vs Overline

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

Head to head
About

Traffic Flow

This idle game focuses on managing passenger flow to optimize income. Upgrade check-in gates, transit paths, and seating to balance queues and unlock new vehicle types like planes, buses, trains, and ships. Progress from small routes to a global transport empire.

Highlights
  • Passenger flow management
  • Idle gameplay mechanics
  • Vehicle type unlocks (planes, buses, trains, ships)
  • Upgrade tracks for gates, transit, and seating
  • Route and city selection
  • Income progression from hundreds to billions
Features
Currently charting
Read full description

Traffic Flow is a clean, hypnotic idle game about one thing: moving people into seats. Passengers arrive as a glowing queue. They check in at the gate, walk the path, step through the door and take a seat. Every seat that fills pays you. Fill the whole vehicle and it departs, then the next one rolls in and the queue starts again. YOUR JOB IS THE BOTTLENECK You never drive anything. You find whatever is slowing the line down and you fix it. Three upgrade tracks, thirty levels each: GATE. Faster check in, instant check in, and higher check in income. TRANSIT. Faster walking, faster boarding, and income at the door. SEATING. Faster seating, instant seating, and higher income per seat. Push one track and the queue backs up somewhere else. Balancing all three is the whole game. FROM ONE SMALL PLANE TO A GLOBAL NETWORK You start with a short hop out of Dublin and a plane with a few dozen seats. Earn enough and you move up to a wide body jet where premium rows pay several times what economy does, then to entirely new kinds of transit: Planes. Long routes, big cabins, premium seating up front. Buses. Short hops that turn over fast. Trains. Multiple cars filling at the same time. Ships. Huge twin aisle decks and the longest passenger queues in the game. Each vehicle type is opened by a one time certificate from the research screen, so every unlock is a real step change rather than another percentage. ROUTES AND CITIES The player hub is a route map for each vehicle type. Pick a city, see its seat count and its income ceiling, and switch your run to it. Dublin, Singapore, Cambridge, Brussels, Bilbao and more, each with a different mix of economy and premium seats. NUMBERS THAT ACTUALLY GO UP Your first plane earns a few hundred a minute. Late game ships earn billions a minute. The jump from hundreds to billions is the point, and you can watch every step of it happen on one screen. BUILT TO BE CALM No timers pressuring you, no lives, no fail state. Pure neon on black, a readable grid of seats, and a queue you can watch for as long as you like. Play with sound off. Play one handed. Put it down mid boarding and pick it up later.

About

Overline

Features
Read full description

Build a mobile network, one mast at a time. Overline is a strategy game about the thing under every phone call: the network. Pick a city, buy spectrum, put up masts, and watch the signal spread over real terrain. Hills block it and valleys hold it, because the map is built from real elevation data for 47 cities. Four bands, four trade-offs. 700 MHz reaches for miles and carries a village; 26 GHz covers a street and carries a stadium. Choose the height, aim the antenna, and hold your finger on the map to see exactly what a site would cover before you pay for it. You are not alone. Rivals buy spectrum, build, undercut your price and, if you let them, buy you out. Win the customers, keep the margin, and consolidate the market, or get consolidated. CAMPAIGN Fifty missions across the world's cities, each a set problem with a fixed opening, one thing to achieve, and a clock. DAILY CITY A fresh city every day and two years to build the biggest network you can. Everyone gets the same city and the same seed. WEEKLY KIT Eight pieces of equipment in play each week, out of thirty-two: sector antennas, microwave hops, rooftop sites, spectrum leases, neutral hosts. What is legal changes every Monday, and so does the best plan. THE BOARD Once a year the board sets a mandate. Deliver it and they fund you. Miss it and they cut your budget. PLANNING Some districts will not take a tall mast without an application. Some will not mind at all. Learn which is which. Six cities are free, one on every continent, along with the first campaigns. One purchase unlocks the rest, forever. No accounts, no ads, no tracking, and the whole game works offline.

Screenshots

Traffic Flow4 screens
Overline4 screens

Verdict

The call

The clearest difference is ads: Overline at none against Traffic Flow's shown. Traffic Flow's advantage is chart position (#102 vs unranked) and 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. Traffic Flow sells 10 one-off in-app purchases and Overline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 8 level
Traffic Flow versus Overline: the parameters behind the verdict, then further details
ParameterTraffic FlowOverline
PriceFreeFree
Rating4.4 (299 ratings) — better—
Positive reviews42.7% of reviews—
Number of ratings299 — better—
Update frequencyEvery 4 daysEvery 4 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#102 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size306 MB15 MB
Age rating4+4+
DeveloperGryphon Games UGHarry Attenborough

In-app purchases

10 purchases

Traffic Flow

One-time10
  • Managers Pack Offer 01$0.99
  • Grand Tour Pass$2.99
  • Welcome Pack$2.99
Show 7 more
  • Economy Pass$4.99
  • Gem Fund - Advanced 01$4.99
  • Express Pass$4.99
  • 3X IDLE INCOME$4.99
  • 2X INCOME PACK$4.99
  • 3X INCOME PACK$9.99
  • NO ADS$14.99
1 purchases

Overline

One-time1
  • Unlock everything$4.99

Questions

Is Traffic Flow free?
Traffic Flow is free to download, with in-app purchases available.
Is Overline free?
Overline is free to download, with in-app purchases available.
Do Traffic Flow or Overline have ads?
Traffic Flow shows ads; Overline does not.
Which is updated more often, Traffic Flow or Overline?
Traffic Flow ships an update every 4 days, and Overline every 4 days. Most recently, Traffic Flow was updated on November 13, 2026 and Overline on November 10, 2026.

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