Comparison

Sustain Program vs One Small Step App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sustain Program

Learn to make everyday choices that benefit your health and the environment. This program helps you reduce your ecological footprint, conserve resources, and combat climate change while improving personal well-being and saving money. Personalize your experience to focus on areas like nature connection, waste reduction, advocacy, or sustainable eating.

Highlights
  • Reduce ecological footprint
  • Conserve natural resources
  • Lessen climate change impact
  • Enhance personal well-being
  • Save money
  • Personalized experience
  • Daily tips and recipes
Features
Read full description

This is a program about everyday choices that are good for you and gentler on the environment. In a few weeks you’ll learn skills to reduce your ecological footprint, help conserve natural resources, and lessen the impact of climate change — while enhancing personal well-being and saving money. Sustain lets you personalize your experience so you practice the activities most relevant and important to you. You can choose to: • Deepen your appreciation and connection with the natural world • Reduce, reuse, and recycle • Advocate for the environment • Shift toward more sustainable eating. Features include: • Individual and (optional) team participation • Daily tips • Healthy recipes • An interactive Wall. Note: Sustain syncs with the web version through your organization’s wellness program; you must create your account on the web version before you can use the mobile app.

About

One Small Step App

Connect with certified peer support specialists for addiction and mental health challenges. Access confidential, judgment-free conversations via chat, call, or video, available evenings and weekends. Support is completely free and accessible when you need it most.

Highlights
  • Certified peer support specialists
  • Confidential and private conversations
  • Support via chat, call, or video
  • Available evenings and weekends
  • Free to use, no insurance needed
  • Mental health and addiction support
Read full description

One Small Step App Support from someone who’s been there—anytime you need it. Struggling with addiction or mental health challenges can feel overwhelming. But you don’t have to face it alone. One Small Step connects you with certified peer support specialists who’ve walked a similar path and are here to help—without judgment, pressure, or cost. Why One Small Step? Real conversations with real people — Talk to someone who understands what you're going through, because they’ve been there too. Support on demand — Whether you prefer to chat, call, or video, we’re available evenings and weekends—when you often need help the most. Completely free to use — There’s no cost to you. No insurance needed. Just open the app and connect. Mental health and addiction support — Whether you’re going through a tough moment or need ongoing encouragement, we’re here to listen. Private and secure — Your conversations are confidential, and you can delete your history anytime. Who is it for? If you’re struggling with substance use, recovery, mental health challenges, or just need someone to talk to—you’ve found the right place. Our peer specialists are trained, certified, and most importantly, they understand. How it works: 1. Open the app 2. Choose how you want to connect—chat, call, or video 3. Get matched with a certified peer who’s ready to support you Taking the first step can be hard. That’s why we’re here to make it easier. No pressure, no judgment—just someone to talk to. You don’t have to do it alone. Take One Small Step today.

Screenshots

Sustain Program4 screens
One Small Step App4 screens

Verdict

The call

The clearest difference is rating: One Small Step App at 5.0 against Sustain Program's 2.0. Sustain Program's advantage is monetization model (free vs ad-supported). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

One Small Step App holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

UpkeepUpdate frequency

Sustain Program ships an update monthly, One Small Step App every 3 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Sustain Program versus One Small Step App: the parameters behind the verdict, then further details
ParameterSustain ProgramOne Small Step App
PriceFreeFree
Rating2.0 (4 ratings)5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings4 — better3
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size56 MB114 MB
Age rating4+17+
DeveloperHealth Enhancement SystemsOne Small Step

Customer experience

Sustain Program

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%

One Small Step App

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sustain Program

No in-app purchases

None

One Small Step App

No in-app purchases

Questions

Is Sustain Program free?
Sustain Program is free to download, with no in-app purchases.
Is One Small Step App free?
One Small Step App is free to download, with no in-app purchases.
Which has better reviews, Sustain Program or One Small Step App?
One Small Step App is rated higher. Sustain Program averages 2.0 out of 5 from 4 ratings, while One Small Step App averages 5.0 from 3 ratings.
Do Sustain Program or One Small Step App have ads?
Neither Sustain Program nor One Small Step App shows ads.
Which is updated more often, Sustain Program or One Small Step App?
Sustain Program ships an update monthly, and One Small Step App every 3 weeks. Most recently, Sustain Program was updated on October 2, 2026 and One Small Step App on October 1, 2026.

Other comparisons