Comparison

Build a Bridge! vs Span

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

Head to head
About

Build a Bridge!

A physics-based puzzle game where you design and build bridges using various materials. Test your creations in 3D to see if they hold up under pressure, with multiple levels and environments to explore.

Highlights
  • Physics-based bridge construction
  • Choose from wood, metal, and cables
  • 86 challenging levels
  • Realistic physics engine
  • 3D testing mode
  • Easy mode for creativity
Features
Read full description

Build a Bridge! is a complex yet approachable physics-based puzzle game. It tasks the player with creating more and more elaborate bridges across multiple levels. You will have to choose the proper materials, using creativity and logic to stay within required budget and create a strong construction. During the planning phase the game presents itself with a simple, 2D interface. It is there that you select the best materials for your bridge and connect the dots to make the most resilient structure you can. You can approach each level as a complex puzzle, trying to be as efficient as possible and get the best solution. But don't be afraid to experiment too. You can just go crazy and construct something that looks outrageous but still somehow works. There's fun in both of these approaches. When you're done, switch to the 3D mode and watch a car drive through your bridge. Will it hold? Or will you watch a spectacular crash? In addition to the normal mode the game features the easy mode for more relaxed gameplayed, focused on creativity and improvisation. You can also use in-game hint system if things get too hard. With 86 levels to construct you will not run out of things to do quickly. Game features: - Different materials to build from - Wood, Metal, Cables - 86 levels of increasingly difficult puzzles - Varied, detailed environments full of interactive elements - Multiple cars to test out your constructions - Realistic physics engine - Beautiful, stylised art style - Available in 13 languages IGRS rating: 13+

About

Span

Features
Read full description

Span is a calm, physics-driven bridge builder. Draw a bridge across the gap, choose your materials, then press Test and watch it carry the load — or buckle in glorious slow motion. Every beam glows with the forces running through it: a live X-ray of tension and compression, so you can see exactly why it held, or why it snapped. Rewind, move one strut, try again. • 57 hand-built levels across eight worlds — timber valleys to ocean straits • Timber, steel, stone, cables and road & rail decks • Real hazards: wind, earthquakes, thermal stress and floods • Drawbridges, canal locks, trains and passing ships • God-mode Sandbox: unlimited budget, every material, every disaster • Level editor: sculpt terrain, place anchors, schedule the traffic • One-tap replay export — share your best holds and worst fails No ads. No timers. No subscription. Buy once, build forever. Free through Chapter 1 — unlock the full game (all worlds, the sandbox and the editor) with a single purchase. Road vehicle models by Daniel Zhabotinsky (CC BY 4.0). Full credits in-app.

Screenshots

Build a Bridge!4 screens
Span4 screens

Verdict

The call

The clearest difference is ads: Span at none against Build a Bridge!'s shown. Span also leads on update cadence (every 5 days vs every 2 months). Build a Bridge!'s advantage is iOS requirement (15.0 vs 17.0). On price, 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. Build a Bridge! sells 10 one-off in-app purchases and Span sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Build a Bridge! ships an update every 2 months, Span every 5 days. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 7 level
Build a Bridge! versus Span: the parameters behind the verdict, then further details
ParameterBuild a Bridge!Span
PriceFreeFree
Rating4.6 (26K ratings) — better—
Positive reviews59.0% of reviews—
Number of ratings26K — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size325 MB60 MB
Age rating12+4+
DeveloperBoomBit, Inc.Dodecki Labs

Bugs and requests

Build a Bridge!

Reported bugs

3 issues
  • Progress not saving properly
  • Game freezing and crashing
  • Ads causing the game to malfunction

Requested features

5 requests
  • More levels and content updates
  • Controller support
  • Easier difficulty mode
  • Less intrusive ads
  • Ability to build bridges freely without restrictions

Span

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Build a Bridge!

One-time10
  • Easy Mode$0.99
  • Small Coins Pack2 variants$1.99
  • Space World$1.99
Show 7 more
  • Easy Mode$2.99
  • Remove Ads$2.99
  • Welcome Offer Unlock All$4.99
  • Welcome Offer - Starter Pack$4.99
  • Orient World$5.99
  • Welcome Offer - Constructor$9.99
  • Unlock All$9.99
1 purchases

Span

One-time1
  • Span Complete$7.99

Questions

Is Build a Bridge! free?
Build a Bridge! is free to download, with in-app purchases available.
Is Span free?
Span is free to download, with in-app purchases available.
Do Build a Bridge! or Span have ads?
Build a Bridge! shows ads; Span does not.
Which is updated more often, Build a Bridge! or Span?
Build a Bridge! ships an update every 2 months, and Span every 5 days. Most recently, Build a Bridge! was updated on October 20, 2026 and Span on October 4, 2026.

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