How scoring works
- Formula
- intensity × smell × duration × context
- Intensity
- 1 to 5, self-rated
- Smell
- 1 to 5, self-rated
- Duration
- In seconds, minimum 1
- Context
- 1.0× to 3.0× depending on location
- Leaderboard
- Sum of entries · weekly, monthly, all-time
The formula
Each logged entry produces a combo score:
combo = round( intensity × smell × duration_seconds × context_multiplier )
Intensity and smell are rated 1 to 5 when you log. Duration is measured in seconds, with a floor of 1. The context multiplier comes from the table below. The result is rounded to the nearest whole number, and that is your score for that entry.
Your position on the leaderboard is simply the sum of your combo scores across the selected period. No hidden decay, no secret weighting, no ranking algorithm in the machine-learning sense — just addition.
The context multiplier table
This is where the game lives. The multiplier rewards social risk, not volume: a modest emission in a lift is worth three times the same emission at home.
| Context | Multiplier |
|---|---|
| Elevator | 3.0× |
| Date | 2.8× |
| Meeting | 2.6× |
| Public transport | 2.4× |
| Plane | 2.2× |
| Restaurant | 2.0× |
| Gym | 1.6× |
| Street | 1.4× |
| Work | 1.3× |
| Car | 1.3× |
| Bathroom | 1.0× |
| Home | 1.0× |
Anything logged without a context — including every quick-add — is treated as 1.0×.
A worked example
Intensity 4, smell 5, three seconds, in a meeting:
4 × 5 × 3 × 2.6 = 156
The identical entry logged at home scores 60. That difference — 96 points for choosing the worse moment — is the entire design of the game in one number.
Quick-add versus full log
The big button on the home screen is a quick-add: one tap, no rating screen. It records the minimum of everything — intensity 1, smell 1, one second, no context — so it scores a single point.
Quick-adds also count as half a day toward your streak rather than a full one. They exist so that a real event never goes unrecorded when you have four seconds and no privacy, not as a scoring route.
Daily limits
- Free accounts: 3 full logs per day. Quick-adds are unlimited.
- Pro accounts: a fair-use ceiling of 50 full logs per day.
The cap is deliberate. Without one, the leaderboard measures free time rather than anything about the user, and the top of the table becomes whoever was most bored. Three well-chosen entries beat thirty lazy ones under this formula anyway — a single elevator log outscores a whole day at home.
Leaderboard periods
Three views: weekly, monthly and all-time. Every one is aggregated live from the underlying entries when you open the page, so there is no snapshot delay and no overnight batch job to wait for. A log made thirty seconds ago is already in the ranking.
The weekly board is the one that matters for newcomers: it resets, so joining in month eight does not put the top spot permanently out of reach.
Keeping it honest
Three self-rated inputs in a competitive game is an obvious invitation, and the design accounts for it:
- The daily cap bounds how much any one account can add, honestly or otherwise.
- Duration is measured, not typed. It comes from the recorder, not from a field you fill in.
- Entries lock. You can edit or delete a log for seven days, after which it becomes permanent history. Retroactively rewriting a good week is not available.
- Wall of Fame entries require a recording. Podium claims that are pure self-reported numbers are labelled as such.
None of this makes the leaderboard tamper-proof, and it would be dishonest to claim otherwise. It makes cheating tedious and unrewarding, which for a game about farts is the correct amount of security.
Frequently asked questions
Why is smell self-rated instead of measured?
Does Pro give a scoring advantage?
Can I see the score of an individual entry?
Will the formula change?
New here? What FartRank is covers the rest, and the guides cover the biology behind the numbers.
Free forever. Two taps to log. One global ranking.
Start ranking →Published 26 August 2026 · by Furiosa Studio