The walking app for building the habit, not just measuring it
ESPL
Reasons to walk, by design.
Not just a step counter — ESPL creates reasons to keep walking.
For yourself, and for the people you care about.
Set a step goal, a sponsorship, and a recipient — and turn walking into a challenge worth seeing through.
- Free app
- iOS & Android
- Patented
*Sponsorship funds and gas fees are separate. App stores: Japan region.
About
What is ESPL
ESPL is a challenge app for keeping people walking.
You can build a challenge for yourself,
or a family member, friend, or company can sponsor one
for someone they want to see walking.
The challenge creator sets
the step goal, the period, the sponsorship, and the recipient.
The sponsorship is held under pre-set rules,
and delivered to the chosen recipient based on the outcome.
So for the walker, it becomes a challenge
they want to honor — and a recipient they want it to reach.
What's a sponsorship
Money tied to a challenge. The sponsor sets it aside in advance, with the destination decided beforehand for both success and failure.
Not a wager, not a fine — it's money you use to design where it lands.
- Example destinations
- On success → yourself / your child / teammates in the same challengeOn failure → family / a charity / teammates in the same challenge
Example
5,000 steps/day × 15 days / sponsorship: ¥1,000
- If completed → to yourself
- If not → to family / to a charity
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Create a challenge
Set the step goal, the period, and the walker to create a walking challenge.
Run a challenge you designed for yourself, or sponsor one for someone you care about — family, friends, or a company.
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Set the sponsorship
The sponsor stakes a sponsorship amount to back the challenge.
The sponsorship is held under the challenge's rules; where it goes depends on whether the goal is met.
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Choose the recipient
Decide in advance who receives the sponsorship — both on success and on failure.
The recipient can be the walker themselves, family, friends, or a charity.
Why It Works
Why it keeps people walking
Two things make people stick with it:
being supported, and knowing where the sponsorship will go.
ESPL combines three behavioral-economics levers
to manufacture reasons to keep walking.
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Loss Aversion
Loss aversion
Where the sponsorship lands changes based on whether the challenge is completed.
So the walker feels: I don't want to waste this support — I want it to reach the recipient we chose.
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Commitment
Commitment
Once the step goal, period, sponsorship, and recipient are set, walking stops being a casual idea — it becomes a defined challenge.
Whether you designed it yourself or accepted one set up for you, the sense of seeing it through emerges.
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Altruism
Altruism
The sponsorship recipient isn't only the walker — it can be family, friends, or a charity.
Walking becomes someone else's joy, not only your own — and the reason gets stronger.
Mechanism
Design more than the walking —
design where the sponsorship lands
ESPL combines the walker, the supporter, and the recipient
to manufacture reasons to keep walking.
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Challenger
The walker
Joins the challenge and aims to hit the step goal. Can run a challenge they designed themselves, or join one a sponsor set up.
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Sponsor
Funds the sponsorship
Designs the challenge and backs the walker. Sets the step goal, period, sponsorship amount, and recipient. The walker, family, friends, or a company can all be sponsors.
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Recipient
Receives the sponsorship
The person or organization that receives the sponsorship based on the challenge outcome. Can be the walker, family, friends, or a charity.
The sponsorship is held under the rules set when the challenge is created.
The destination can differ between success and failure.
Who you want to walk. Who you want the sponsorship to reach.
That combination becomes the reason to keep walking.
Stablecoin × Behavior Change
Use JPYC
to manufacture reasons to walk
Sponsorship amounts and recipients become real tools
for building a daily walking habit.
Not speculation —
JPYC for keeping a daily behavior going.
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Stake it as a sponsorship
The walker or a sponsor can stake JPYC as the challenge sponsorship.
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Deliver based on the outcome
Based on whether the challenge is completed, JPYC is delivered to the pre-set recipient.
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Use it with family, charity, or a team
Set the recipient to family, a charity, or a team — and turn walking into someone's joy.
For You
Made for people like this
If even one of these resonates, ESPL is worth trying.
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People who couldn't stick with a step counter
For people who don't want to blame their willpower — they want to change the system itself.
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People worried about a family member's health
For people who want to gently give a parent or spouse a reason to walk. Set a goal, period, and sponsorship to back someone you care about.
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People who want their parents to walk
Even when you live far from your parents, you can give them a reason to walk. With the parent set as the sponsorship recipient, walking becomes a family connection.
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People who want to push each other with friends or rivals
Share a sponsorship and rules with friends going for the same goal, and walk together.
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People looking for what to do with JPYC
For people who want to use JPYC in daily habit design, not speculation.
How to Start
Getting started is simple
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Download
Free on the App Store and Google Play.
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Sign up
Sign up with an email. Steps sync automatically from HealthKit / Google Fit.
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Create or join a challenge
Set the goal, period, sponsorship, and recipient to design a challenge for yourself or someone you care about. You can also join an existing one.
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Walk
From there, just walk. Your daily steps flow into the challenge automatically.
Cost
The app is free.
Only small actual costs.
Here are the three costs of using ESPL — nothing hidden.
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01 / App
App
Completely free
Download, account creation, step tracking, and creating or joining challenges are all free.
-
02 / Sponsorship
Sponsorship
Set the amount freely
The sponsorship funds the challenge. The walker can fund it themselves, or family, friends, or a company can sponsor. Amount, period, and recipient are set per challenge.
See how the sponsorship flow works (Japanese) -
03 / Gas
Gas
A few to a few dozen yen
A small fee that occurs when the challenge runs on the blockchain. Daily step tracking is free.
Gas fee details
Basic app use is free.
The only costs are the sponsorship you set on a challenge, and small actual fees when using the blockchain.
For Companies & Communities
Also works for JPYC-based corporate wellness
The ESPL mechanism also works for corporate, municipal, and insurer wellness programs.
If you'd like to design a reason to walk as an individual, use the download above.
For organizational deployment, the sister service 「運動サプリGH」 is available.
About Us
ESPL is operated by
Sense It Smart Corporation
A behavior-change company —
we protect small daily actions with mechanism.
We hold Japan Patent No. 6,696,672 (「チャレンジ支援システム」 / "Challenge Support System")
and build the mechanisms behind ESPL (consumer) and 運動サプリGH® (corporate / municipal / health insurer) —
the systems that design reasons to walk.
Articles
Articles
Thinking across behavior change, AI, Web3, and healthcare.
FAQ
Frequently asked questions
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Is the app free to use?
Yes — downloading ESPL and using the basic features is free.
Sponsorships are funded by the sponsor, and only small blockchain gas fees (a few to a few dozen yen) are charged separately.
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What happens to the sponsorship if I don't reach the step goal?
The sponsorship is distributed to the failure-case recipient set at challenge creation.
Settings like “if I fail, it goes to my family” or “it goes to teammates in the same challenge” let you change the meaning by design.
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Who manages the sponsorship?
The sponsorship is held under the rules set when the challenge is created.
When the blockchain is used, a smart contract holds the sponsorship and distributes it to the pre-set recipient based on the outcome.
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Can I use it without crypto knowledge?
Yes. Challenges are designed to start in Japanese yen, so crypto knowledge is not required.
If you want to step into JPYC-based sponsorship design, the JPYC page covers the details.
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How is this different from a regular step counter?
A regular step counter is centered on recording steps.
ESPL combines a step goal, period, sponsorship, and recipient to manufacture reasons to walk.
You can walk for yourself, or design a challenge to have someone you care about walk.
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Can I use it without involving family or friends?
Yes — challenges that work solo can be created.
That said, involving family, friends, or a sponsor tends to amplify altruism and commitment effects, which improves continuation rates.
Still have questions? Please get in touch.
Manufacture your reason
to walk.
For yourself, and for the people you care about.
Set a goal, a sponsorship, and a recipient —
and start a walking challenge worth seeing through.
The app is free. Sponsorships are funded by the sponsor;
small blockchain gas fees (a few to a few dozen yen) are charged separately. App stores: Japan region.
For companies, municipalities, and health insurers,
the sister service 「運動サプリGH」 is available.