Comparison

Fail Run vs Arm Simulator

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

Head to head
About

Fail Run

Master the art of walking and avoid falling as you progress through challenging levels. Unlock a variety of outfits and aim to complete as many stages as possible in this physics-based game.

Highlights
  • Learn to walk mechanics
  • Stumble and fall physics
  • Unlockable outfits
  • Multiple levels
  • Challenging gameplay
Features
Currently charting
Read full description

Stumble and fall!
 
Learn to walk before you run and stumble across the finish line. Put one leg in front of the other and try not to fail.
 - Unlock all Classic and Legendary Outfits - Complete as many Levels as you can One small step for man, one big faceplant for mankind!

About

Arm Simulator

Experience a humorous physics-based ragdoll game where you control an arm. Navigate through challenging puzzles by skillfully manipulating your limb to achieve objectives.

Highlights
  • Physics-based ragdoll simulation
  • Arm control mechanics
  • Puzzle-solving challenges
  • Funny and humorous gameplay
Features
Read full description

A funny physics-based arm simulator game. Can you move hand to solve all the puzzles?

Screenshots

Fail Run4 screens
Arm Simulator4 screens

Verdict

The call

The clearest difference is update cadence: Arm Simulator at fortnightly against Fail Run's every 5 weeks. Fail Run's advantage is chart position (#210 vs unranked). On price, rating, review sentiment and ratings volume 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. Fail Run sells 1 one-off in-app purchase and Arm Simulator sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Fail Run against 4.6 for Arm Simulator. Both are backed by a comparable volume of ratings — 34K and 36K respectively. Written reviews split almost evenly too, at 41% and 42% positive.

UpkeepUpdate frequency

Fail Run ships an update every 5 weeks, Arm Simulator fortnightly. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 9 level
Fail Run versus Arm Simulator: the parameters behind the verdict, then further details
ParameterFail RunArm Simulator
PriceFreeFree
Rating4.7 (34K ratings) — better4.6 (36K ratings)
Positive reviews41.4% of reviews41.7% of reviews — better
Number of ratings34K36K — better
Update frequencyEvery 5 weeksFortnightly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#210 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size405 MB569 MB
Age rating17+12+
DeveloperVoodooSUPERSONIC STUDIOS LTD

Customer experience

Fail Run

All ratings34,034 ratings
Positive91.5%
Neutral4.3%
Negative4.2%
Written reviews654 reviews
Positive41.4%
Neutral16.5%
Negative42.0%

Arm Simulator

All ratings36,392 ratings
Positive90.0%
Neutral4.4%
Negative5.6%
Written reviews206 reviews
Positive41.7%
Neutral13.6%
Negative44.7%

User reviews

Fail Run

From 34K App Store ratings

What we love

  • 🤩 Fun and entertaining game
  • 👍 Unique and challenging gameplay
  • 🥰 Hilarious character animations

Room to improve

  • 🤬 Excessive ads that interrupt gameplay
  • 🐛 Frequent crashes and loading issues
  • 🤯 Extremely difficult and frustrating at times

Arm Simulator

From 36K App Store ratings

What we love

  • 😂 Funny and entertaining
  • 🤖 Unique and innovative gameplay
  • 👍 Satisfactory and engaging

Room to improve

  • 🔥 Excessive ads and monetization
  • 🐛 Glitches and performance issues
  • 🤔 Repetitive and lacking challenge

Bugs and requests

Fail Run

Reported bugs

2 issues
  • Game freezes and stops loading after reaching certain levels
  • Character movements and physics are inconsistent and glitchy

Requested features

3 requests
  • Add a level replay option
  • Improve character control and physics
  • Reduce the number of ads or offer an ad-free version

Arm Simulator

Reported bugs

3 issues
  • Arm movement not responsive
  • Game crashes after completing levels
  • Rewards not properly awarded after watching ads

Requested features

3 requests
  • Offline play mode
  • More level variety and difficulty options
  • Reduced ads or paid ad-free version

In-app purchases

1 purchases

Fail Run

One-time1
  • No Ads$2.99
4 purchases

Arm Simulator

One-time4
  • No Ads$2.99
  • Skin Bundle$3.99
  • Story Bundle$3.99
Show 1 more
  • Skin & Story Bundle$5.99

Questions

Is Fail Run free?
Fail Run is free to download, with in-app purchases available.
Is Arm Simulator free?
Arm Simulator is free to download, with in-app purchases available.
Which has better reviews, Fail Run or Arm Simulator?
Fail Run is rated higher. Fail Run averages 4.7 out of 5 from 34K ratings, while Arm Simulator averages 4.6 from 36K ratings.
Do Fail Run or Arm Simulator have ads?
Both Fail Run and Arm Simulator show ads.
Which is updated more often, Fail Run or Arm Simulator?
Fail Run ships an update every 5 weeks, and Arm Simulator fortnightly. Most recently, Fail Run was updated on September 25, 2026 and Arm Simulator on September 24, 2026.

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