PrettyScale vs BecomeTen: a free symmetry percentage against a calibrated rating

Who is PrettyScale for?

PrettyScale is one of the oldest free face calculators still online. You open it in a browser, upload a photo or use the webcam, place lines and dots on your features as instructed, and receive a percentage. Its help page explains the inputs plainly: face shape, the distance between eyes and lips, mouth size and face symmetry, with the golden ratio sometimes used as well. The unit is a joke it owns, the micro Helen, with an 80% score meaning 80 micro Helen.

That makes it a fit for someone who wants a free, instant, no-account number and does not want advice. The home page is candid in two ways worth respecting: it asks people with low self-esteem not to start, and it says results could be incorrect. What it does not state is who runs it, what age it is for, or whether any research sits behind the calculation, so this page does not guess at those.

Who is BecomeTen for?

BecomeTen is also a browser tool, but it is a rater with a plan rather than a calculator. One photo returns a score out of 100, one of eight tiers and a share card, free, one scan per device per day, no sign-up. The full report costs €6.99 once and adds 30+ traits across harmony, eye area, jaw and chin, skin and hair, each as a directional band, a non-surgical potential capped per area, and a plan in which every step carries an evidence level and cites only from a curated PubMed-verified library.

It is for an adult who wants an honest number rather than a flattering one. The calibration is strict by design: an average, healthy, groomed person lands around 50–60 and above 80 is reserved for striking structure. It is 18+, English only, and there is no store app yet. The rubric is published on the methodology page, and the wider looksmaxxing guide explains what each area of the face can and cannot do.

What does a symmetry percentage from one photo actually mean?

Less than the decimal places suggest. A single front-facing photo is a 2D projection of a 3D face taken through a lens at one distance under one light. Turn the head a few degrees, and the two halves of the face no longer land at the same scale on the sensor; move the phone closer, and the nose grows relative to the ears; light from one side, and one cheek reads fuller. PrettyScale's own help page says results can change with how you place the lines and dots. Any symmetry figure with a decimal point is therefore reporting the photo and your hand as much as your face.

The golden ratio is a separate matter. PrettyScale says it is sometimes used; many calculators make it the whole score. There is no evidence in the library BecomeTen cites that closeness to a specific ratio predicts how a face is rated once symmetry, averageness and skin are accounted for, so BecomeTen does not score against it at all. The facial symmetry glossary entry covers what a photo can and cannot show.

Calculator or rating: what is the difference?

A calculator applies a formula to points. If the points move, the number moves; there is no notion of an average face to be measured against, so a percentage has no fixed meaning. A rating is a rubric plus a calibration. BecomeTen weights five areas and is anchored so that a specific kind of person, average, healthy and groomed, lands in a specific band. The number is still an estimate from one photo, never a measurement, but it is an estimate against a stated reference.

• You want a free, instant, no-account number and nothing else: PrettyScale.
• You want a free number that has a stated meaning, then the option of a report: BecomeTen's free score and tier.
• You want to know which traits are workable and what the evidence is for each step: BecomeTen's €6.99 report.

Does either tool tell you what to do next?

PrettyScale's pages describe a test and a score. No plan or advice is described, so there is nothing to cite and nothing to check. That is not a flaw for a free calculator; it is what it is. BecomeTen's report exists for the opposite reason. Each weak point is tagged workable or structural, potential is capped in code at harmony +6, eye area +10, jaw and chin +14, skin +25, hair +20, and every plan step is labelled strong, moderate, weak or no studies. The AI may only cite from a library checked server-side, so a made-up reference cannot reach you.

What happens to the photo on each site?

PrettyScale's home page states that uploaded photos are not saved or shared, and its privacy policy says a picture may pass through their servers but is not saved or stored. It also states that IP address, location and language are collected for a customised experience and not passed to third parties. No operator name, address or country appears on the pages checked, and no minimum age is stated; the policy only says the tool is designed for grown-up human faces.

On a BecomeTen free scan the photo is processed for the rating and deleted straight after; only the text analysis remains. A paid scan is stored encrypted in the EU until you delete it or your account, because a re-scan compares against it. No model is trained on your photos. The seller is Appinara s. r. o. in Slovakia, with public terms, refunds and a privacy policy.

Converting a PrettyScale percentage to a 1–10 or PSL score

People ask for this conversion often, and the honest answer is that there is none. A PrettyScale percentage is a formula applied to lines and dots you place yourself, with no stated reference for what an average face scores. A 1–10 rating is a social convention with an implied average around five or six. The community's PSL ladder is a 1–8 scale where, by forum habit, most people sit around four to five and the top bands are reserved for rare structure. None of these three has a fixed anchor in common with the others, so a number on one cannot be mapped onto another without inventing the mapping.

If you want the rough mental picture anyway, treat it as a picture and nothing more. A PrettyScale result in the middle of its range is telling you the landmarks you placed were not far from the tool's template, which most faces are not; that is what an ordinary 1–10 rating of five or six or a PSL around four to five also loosely describes. A result near the top of the percentage range says the landmarks sat close to the template, which is a narrower claim than a 1–10 eight or a PSL six, because those are also judging skin, hair, expression and the whole face rather than a set of distances. Do not write the equivalence down; it does not hold from one photo to the next.

The useful conversion is to a stated scale. BecomeTen's 0–100 score has a published average band, around 50–60, and a fixed mapping to the 1–8 ladder explained on the PSL score page, so one number can be read in both units without guessing. If symmetry specifically is what you wanted from PrettyScale, the free face symmetry tool gives a directional read in the browser without an account and without a decimal that pretends to be a measurement.

How to choose between PrettyScale and BecomeTen

Pick PrettyScale if you want a free curiosity check with no account and no advice, and you treat the percentage as a game rather than a verdict; its own home page frames it that way. Pick BecomeTen if you want a number with a stated calibration, a free score before any payment, and, if you go further, a plan you can check against the studies it cites. If you are under 18, BecomeTen is not for you and PrettyScale's pages do not say. The full category, including phone apps, is on the looksmaxxing apps compared hub, and what a free rating can honestly measure is explained on AI face rating. For the store apps, see BecomeTen vs Umax.