«Cuando compré este extensor, no tenía ni idea de lo que era el alargamiento del pene. Ni siquiera han pasado dos meses de uso constante y
ya estoy viendo resultados. Estoy muy satisfecho».
Emil Rasmussen, cliente satisfecho
«Me encanta su tamaño compacto, las marcas claras y los tornillos de mariposa grandes. De todos los extensores que tengo, este es mi
favorito».
Jeff Stauffacher, cliente satisfecho
«Una herramienta muy útil que permite saber exactamente cuánta presión está ejerciendo el usuario; además, es cómoda
y se adapta a diferentes tamaños. Una compra excelente tanto para principiantes como para usuarios experimentados».
Roberto Arturo Suárez, cliente satisfecho
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18,917 men opened a PE Trainer app account since July 2023. 5,777 of them logged at least one training session, and 14,238 entered a measurement.
Figure 1Training hours logged per month
Hours grew from 953 a month at the start of 2024 to 10,796 a month at the start of 2026. Men training each month grew from 79 to 784.
Figure 2Hours by device
81%Extender
14%Pump
4%Hanger
1%Other
182,573 extender hours, 31,272 pump hours and 9,266 hanger hours.
Figure 3What 22,723 men told our quiz
68%
want more length and more girth
48%
have never done PE before
41%
say they have only 10 to 20 minutes a day
Quiz answers from 2026. 74% want more girth, on its own or with length.
Figure 4Starting length, bone-pressed and erect
4"4.5"5"5.5"6"6.5"7"7.5"8"8.5"9"
At 6.25" long, you are longer than about 50% of men who measure in our app.
11,267 men. Half start between 5.6" and 6.9", and the middle man starts at 6.26". Men measure themselves, and men who want to train are not a random sample, so this is not a population average. For comparison, a review of measurements taken by health professionals found an average erect length of 13.12 cm, about 5.17 inches (Veale et al., BJU International, 2015). Men in our app report about an inch more. Self-measuring and who chooses to train likely both play a part.
Figure 5Starting girth, erect
3.5"4"4.5"5"5.5"6"6.5"
At 5" around, you are thicker than about 50% of men who measure in our app.
10,051 men. Half start between 4.65" and 5.51" around the middle of the shaft. The middle man starts at 5.00". The same review found an average erect girth of 11.66 cm, about 4.59 inches.
02
How men train
Regular users (8 or more training days across 4 or more weeks, 2,083 men) train about 2.26 days a week and log a median of 1.93 hours of traction a week.
Figure 6Traction hours per week, regular users
33%Under 1
18%1 to 2
13%2 to 3
17%3 to 5
9%5 to 7
6%7 to 10
2%10 to 14
2%14+
Extender and hanger hours. The middle man logs 1.93 hours a week, the top 10% log 7.08 or more. Only 4% log 10 or more. Our coaches recommend 15 to 25 hours a week for clear results in 9 to 12 months.
Figure 7Minutes of extender wear per training day
3%Under 15
6%15 to 30
13%30 to 45
12%45 to 60
32%60 to 90
11%90 to 120
14%120 to 180
9%180+
124,744 training days. The middle extender day is 60 minutes. Pump days are shorter: the middle pump day is 20 minutes.
Figure 8When men train, by local hour
12 am
6 am
12 pm
6 pm
8,557 recent sessions with a known local time. The busiest hour starts at 9 pm, and there is a second, smaller peak in the late morning.
03
Who sticks with it
Most men stop early. Half of the men who start an extender stop logging within a month. That matters more than any device spec, because hours are what the results follow.
Figure 9Share of extender users still logging sessions
After 1 week
64%
After 1 month
52%
After 6 months
30%
After 1 year
21%
"Still logging" means the man logged at least one session that many weeks or more after his first. Each point only counts men who started long enough ago to be measured: 4,575 men at 1 week, 2,371 at 1 year. Some men keep training without logging, so real dropout is somewhat lower.
Figure 10How far men get, in traction hours
Logged any traction3,626
Reached 10 hours1,904
Reached 50 hours853
Reached 100 hours479
Reached 250 hours164
Reached 500 hours57
Reached 1,000 hours11
Only about 1 in 22 men who start ever reach 250 hours, the level where results get clear.
04
Length results
Change in bone-pressed erect length, from each man's first measurement to his latest. 1,911 men measured in 2 or more months.
Figure 11Length gained, month by month
Top 10%Top 25%Typical man
Months since first measurement
Month 12107 men
Typical man+0.47"
Top 25%+0.75"
Top 10%+1.02"
Gained half an inch or more46%
Each month counts the men who measured that month, from 787 at month 1 to 74 at month 15. "Typical" is the median. "Top 10%" means 1 in 10 men had gained at least this much. Tap a month for its numbers.
First quarter inch
Month 9
typical month men first measured +0.25". 62% of the 385 men who measured for a year got there.
First half inch
Month 11
typical month men first measured +0.5". 42% of them got there.
12 months or more
78%
of men who measured over a year or more gained length. Median +0.35".
Figure 12Results follow traction hours
No traction logged59%498 men
Under 25 hours63%703 men
25 to 100 hours79%423 men
100 to 250 hours82%206 men
250 hours or more90%81 men
Traction hours = extender plus hanger hours logged between the first and latest measurement. Men who logged no traction still show a small gain: that is measuring error plus training done off the app, and it is the baseline to compare against.
Figure 13More days beat longer days
Under 1.5 days a week54%95 men
1.5 to 3 days a week62%161 men
3 or more days a week66%165 men
421 men with 3+ months and 50+ traction hours. Training 3 or more days a week cut the share who measured shorter from 10% to 2%. Men who averaged 90+ minutes a training day gained no more than men under 90 (80% vs 87% gained).
Figure 14Shorter starters gained the most
Started under 5.75"54%124 men
Started 5.75" to 6.75"37%227 men
Started over 6.75"26%190 men
Men with 3+ months and 25+ traction hours. Typical gains: +0.59", +0.39" and +0.26" from shortest to longest starters.
05
Girth results
Change in erect girth, first measurement to latest, 1,787 men. Girth gains are smaller in inches than length gains because girth goes all the way around.
Figure 15Girth follows pump hours
No pumping logged42%734 men
Under 10 pump hours50%731 men
10 to 50 pump hours62%240 men
50 pump hours or more72%82 men
Pump hours logged between the first and latest girth measurement. Men with 50+ pump hours: typical gain +0.24".
Extender only
48%
gained any girth
0.00"
median girth change
183 men, 25+ traction hours, no pumping
Extender + pump
66%
gained any girth
+0.12"
median girth change
258 men, 25+ traction hours and 10+ pump hours
Extending alone did not make men thinner: the median girth change was 0.00", and the 14% who measured thinner is in line with measuring error. Men who also pumped gained more length too (+0.39" vs +0.24", 42% vs 22% gained half an inch or more), most likely because they train harder overall.
Figure 16Length and girth combined, after a year or more
Group
Typical
Top 10%
1"+
Men
All
+0.51"
+1.35"
22%
358
Trained 100+ hours
+0.75"
+1.58"
33%
120
Used an extender and a pump
+0.75"
+1.60"
34%
97
Trained 250+ hours
+0.81"
+1.65"
42%
62
Men who measured for 12 months or more. Typical is the middle man, Top 10% is the gain the best tenth reached or beat, and 1"+ is the share who gained an inch or more. Bone-pressed erect length change plus erect girth change, first measurement to latest. Hours are extender, hanger and pump hours logged in between. The more men trained, the bigger the combined gain.
06
Tension and pressure
Men build up slowly. The Epic Pro reads extender tension and the Epic Pump reads vacuum, and both send it to the app. Manual logs fill in the rest.
Figure 17Extender tension by week
Epic Pro sensor, 975 men. Week 1 median 1.9 kg, week 13 2.7 kg. The shaded band is the middle half of men.
Figure 18Pump pressure by week
94,005 pressure readings from 1,539 men. Week 1 median 5.9 inHg, week 13 7.1 inHg. Our safety advice is still to start under 5 inHg.
07
What the community says
1,763 men have posted 121,807 messages in our Discord since 2023. We read them for why men stop, which side effects they run into, and when they first notice a change.
1.6 inis the average combined length and girth gain men report to us in messages after 12 to 16 months, and often more when they stay consistent.
A record 208 men posted in a single month in 2026.
Figure 20Why men pause or stop
Gear problems: fit, slipping or waiting on a part41 men
Skin issues: blisters, sores, torn skin28 men
Time, privacy or travel18 men
Injury or erection worries15 men
Pain or discomfort10 men
Numbness or color change9 men
Life events8 men
No visible results3 men
106 members who said why they paused or stopped, read one by one. Some gave more than one reason. Men who quit because they saw no results mostly leave without saying so, so that reason is undercounted.
Figure 21When men first notice a change
4 weekstypical time to the first change men noticed
74% noticed something within the first month.
The first change is usually erection quality or flaccid hang, at about 3 weeks.
Erect length comes later. In our app the typical man first measured a quarter inch longer at month 9.
34 members who said when they first noticed a change, read one by one. The middle half said 2 to 6.5 weeks. Men who notice something are more likely to post about it.
Table 3Side effects members talk about, and how they fix them
Side effect
Members who mentioned it
Usually from
What members did
Ampollas
247
Mostly extender
Better taping, then time off. Members said they healed in about a week.
Pain
290
Mostly extender
Lower the tension and build up slowly. Pain means stop.
Swelling (edema)
142
Mostly pump
Goes away on its own within hours to 3 days. Lower the pressure next time.
Cold or discolored head
75
Mostly extender
Take a 5 to 10 minute break and lower the tension.
Numbness
33
Mostly extender
Stop the session and come back another day at lower tension.
Red spots
31
Mostly pump
Too much pressure. They fade within days.
Skin tears
27
Mostly extender
Time off until healed, then gentler taping.
Bruising
17
Mostly extender
Rest and lower tension.
Counts of members who brought it up at least once, out of 1,763 who posted. A mention is not the same as how often it happens, and many mentions are questions. Stop if you feel pain or numbness, or see a color change, and see a doctor if a problem does not settle.
Figure 22Beginner mistakes our coaches fix most
1
Wrong cup or sleeve size, air leaks, glans slippingabout 225 coach corrections
2
Measuring the wrong wayabout 173 coach corrections
3
Relying on low tension for hours instead of high tension first, then ADSabout 157 coach corrections
4
Poor tapingabout 151 coach corrections
5
Expecting fast resultsabout 95 coach corrections
6
Too few hours or inconsistent trainingabout 94 coach corrections
7
Too much tension too soonabout 84 coach corrections
Estimated from about 3 years of coach replies in our Discord, checked by hand on samples.
08
How this compares to clinical studies
Traction trials are small, but they point the same way as our data. More wear brings more length. These are the numbers each paper reports in its abstract.
"Stretched" means stretched while soft. Only one size study measured erect length. Peyronie's and prostate studies are included because they measured length gains from traction.
In the size trials
4 to 9 h
of wear a day, for 3 to 6 months
1.2 to 2.3 cm
average length gain, flaccid, stretched or erect
In our app
1.9 h
of traction a week for the typical regular user
+0.55" (about 1.4 cm)
typical gain for men who logged 250+ hours
Men who put in trial-like hours got trial-like results. Most men never put in those hours: only 5% of men who logged traction reached 250 hours.
Length held, while untreated men lost about 1.6 cm
The pump studies we found measured length, not girth. We found no trial of girth from pumping in healthy men, which is why our own girth data matters.
What the reviews say. Reviews rate this evidence as low quality: the studies are small and few have a control group. A 2020 review found extenders added flaccid length, but under 2 cm, and found vacuum pumps did not add size (Marra et al., Sexual Medicine Reviews). The US urology guideline for Peyronie's disease makes no recommendation on traction, and a 2021 European statement said the evidence is not strong enough for firm guidance. In the US, vacuum pumps are regulated as Class II devices for erections (21 CFR 876.5020), not as enlargement devices.
09
Method and limits
Where the data comes from
PE Trainer app. 18,917 accounts, July 2023 to October 2026. Training sessions men logged by hand or that the Epic Pro and Epic Pump sent by Bluetooth, and monthly measurements men entered themselves.
Epic Discord. 121,807 messages from 1,763 men who posted, May 2023 to October 2026. About 7,300 men joined.
Our quiz. 22,723 answer sets, April to October 2026.
How we counted
Sessions from 0.5 to 360 minutes were kept. Measurements outside believable ranges were dropped, and changes larger than 2 inches (length) or 1.5 inches (girth) were treated as typing errors.
A man's change is his latest measurement minus his first. Only men who measured in 2 or more different months count.
Length is bone-pressed erect length (BPEL). Girth is erect girth around the middle of the shaft.
Pump pressure only counts readings where the stored value matches its unit, because some early app builds labeled units wrongly.
Only totals left the app server. No names, emails or single-person records were exported.
What this data cannot tell you
It is self-reported. Men measure themselves, and measuring is never exact. That is why men who logged no training still show a small gain.
There is no control group. This is an observational study, not a clinical trial.
Survivorship. Men who see results are more likely to keep measuring. Only about 14% of men who measure ever measure again a month or more later.
Incentives. Since June 2024 our founder has offered $1,000 for a documented 1 inch gain, and our Discord coaches are also affiliates. Community stories are not independent.
We sell these devices. Read the numbers with that in mind. We publish the method and the data so anyone can check them.
We refresh this report every quarter.
Download the data
Every table in this report as one CSV file. Free to use with credit and a link to this page.
Months, not weeks. In our app the typical man was up 0.08 inches after one month, 0.28 inches by month 6 and 0.47 inches by month 12. Among men who measured for a year, the typical one first measured a quarter inch longer at month 9.
How many hours does it take to see extender results?
Results follow total hours. In our app, 90% of men who logged 250 or more hours of traction measured longer, and 59% gained half an inch or more. Under 25 hours, results were close to measuring error.
What percentage of men get results from a penis extender?
Of men in our app who measured over 12 months or more, 78% measured longer, with a median gain of 0.35 inches. Results vary a lot from man to man, and the data is self-reported.
How many men quit penis enlargement training?
Most. In our app, 48% of men who start an extender stop logging within a month, and only 21% are still logging a year later.
Is it better to train every day or do longer sessions?
More days beat longer days. Men who trained 3 or more days a week were least likely to measure shorter (2% against 10% for under 1.5 days a week). Men who wore an extender 90 or more minutes a day did no better than men who wore it under 90.
Does a penis extender make you thinner?
Not in our data. Men who only extended had a median girth change of 0.00 inches.
Do penis pumps increase girth permanently?
The swelling after a session fades within hours. Over months, 72% of men in our app with 50 or more pump hours measured thicker, with a typical gain of 0.24 inches. Men who never pumped mostly did not.
What size are men who start penis enlargement?
In our app the middle man starts at 6.26 inches bone-pressed erect length and 5.00 inches erect girth. These are self-measurements from men who chose to train, not a population average.
Where does this data come from?
From the PE Trainer app (sessions and measurements men log), the Epic Discord and our quiz. Only totals left the app server. The method section explains every filter.
Can I use this data?
Yes. Download the CSV and use it with credit and a link to this page.
Our products are not intended to diagnose, treat, cure, or prevent any disease and have not been evaluated by the FDA. Results vary. Consult your doctor if you have a medical condition.
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