Coach Josh

Short answer

Coach Josh (Joshua Saunders) has been a professional trainer since 2018. He holds ISSA certifications in personal training, nutrition coaching and strength and conditioning, and NCCPT certifications in personal training and nutrition coaching. He built Get Your BMR, the free calorie and protein quiz, and Walk & Water, the walking challenge app. He writes these guides and walks every round.

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First two rounds free · teams of 2–4 · a new round every Tuesday

By Coach Josh · Get Your BMR

7 sources · Reviewed October 29, 2026

The short version

  • Professional trainer since 2018
  • ISSA and NCCPT certified
  • Creator of Get Your BMR and Walk & Water
Illustration: four women walking together on a park path in the morning, chatting and carrying water bottles.

Training and certifications

Josh has worked as a professional trainer since 2018. His certifications:

  • ISSA: Personal Trainer, Nutrition Coach, and Strength and Conditioning
  • NCCPT: Personal Trainer and Nutrition Coach
  • Corrective Exercise certification

What Coach Josh built

Get Your BMR is a free four-question quiz that estimates your resting burn, a daily calorie target and a protein range, using the Mifflin-St Jeor equation.

APEX: Walk & Water is a walking and water challenge app for iPhone and Android. Each 3-day round runs Tuesday to Thursday on a team of two to four, ranked on each team’s average, with winners on Friday. Your first two rounds are free.

In his words

I’m Josh. I built Get Your BMR so you could see what your body burns at rest, and I built Walk & Water so you’d have somewhere to use it with people who notice when you show up.

I walk every round too: same board, same three days, on my own team. I don’t always win. Tap Chat with Coach in the app and it’s me who answers.

Find Coach Josh

Instagram and YouTube: @bodybyreason. TikTok: @bodybyreasonbbr. Facebook: Josh Saunders, and the 3-Day Walk & Water Challenge group. In the app: Chat with Coach.

Walk it with a team this week

Join a team of 2–4, walk & drink your water Tuesday to Thursday, and see the winners Friday.

Download for iPhone Get it on Android

First two rounds free · teams of 2–4 · a new round every Tuesday

The 3-Day Walk & Water Challenge

How a round works

  1. 1. Join a team

    Two to four of you on one team: a friend’s, your own, or one you join in the app. Your team gets a name, a crest & a spot on the live leaderboard.

  2. 2. Walk + water, 3 days

    Tuesday, Wednesday & Thursday. A step goal & a water goal sized to where you are today. The board updates as you walk & closes Thursday at midnight, Arizona time.

  3. 3. Friday winners

    Friday morning the results go up. The winning team’s card glows gold, badges land beside names on the board, and a new round starts Tuesday.

Bigger isn’t better. Teams rank on their AVERAGE.

A team’s score is its average per woman, not its total. So two friends can beat a team of four, and every walker’s day counts the same. When one of you goes quiet, the others notice & send a nudge in team chat.

The Walk & Water team card: team name and crest, team level, the average steps per woman, and each teammate’s steps and glasses of water.
Your team card. The big number is the average per woman.
The Walk & Water leaderboard: your rank this week, steps, glasses of water, day streak, and the 3-day challenge rankings.
The live leaderboard. Solo, team & global ranks for this round.

How these guides are written

Every guide follows the same rules.

  1. Sources on every page

    Each guide lists the studies and official pages its facts come from, and the date they were last checked.

  2. No promises

    No promised results, no shame, and no claims a study doesn’t support.

  3. Safety first on health pages

    Health pages carry a “talk to your doctor” note near the top of the page.

Questions

Is Coach Josh a real person?

Yes. Coach Josh is Joshua Saunders. He walks the rounds on his own team and answers Chat with Coach in the app himself.

Who writes the Get Your BMR guides?

Coach Josh. Each guide lists its sources and the date the facts were last checked.

What certifications does Coach Josh have?

ISSA personal trainer, nutrition coach and strength and conditioning certifications, NCCPT personal trainer and nutrition coach certifications, and a corrective exercise certification. He has trained clients professionally since 2018.

Do these guides replace medical advice?

No. Josh is a trainer and nutrition coach, not a doctor or dietitian. Health pages tell you when to talk to your doctor.

Sources

Written by Coach Josh and checked against these sources on October 29, 2026. General information, not medical advice.

Show all 7 sources
  1. Coach Josh on Instagram (@bodybyreason)
  2. Coach Josh on YouTube (@bodybyreason)
  3. Coach Josh on TikTok (@bodybyreasonbbr)
  4. Josh Saunders on Facebook
  5. The 3-Day Walk & Water Challenge group on Facebook
  6. APEX: Walk & Water Challenge on the App Store
  7. APEX: Walk & Water Challenge on Google Play
Coach Josh

Who writes these guides

Coach Josh

Professional trainer since 2018 · ISSA & NCCPT certified · Creator of Get Your BMR & the Walk & Water Challenge (BodyByReason)

I’m Josh. I built Get Your BMR so you could see what your body burns at rest, & I built Walk & Water so you’d have somewhere to use it with people who notice when you show up.

I walk every round too: same board, same three days, on my own team. I don’t always win. Tap Chat with Coach in the app & it’s me who answers.

About 7 in 10 women who finish a round come back & play the next one.

Walk & Water app data, 73 finishers, snapshot October 19, 2026.

Start this week’s round

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First two rounds free · teams of 2–4 · a new round every Tuesday

Not sure where to start? Get your number first

Related guides

Get Your BMR is Coach Josh’s free calculator. The 3-Day Walk & Water Challenge is where you put the number to work, and it runs inside the APEX: Walk & Water app on iPhone and Android.