StepPet vs Underfoot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StepPet
This app gamifies your daily steps by letting you walk to evolve virtual pets. It integrates with HealthKit for step tracking and offers features like water intake monitoring and pet diaries. Collect and evolve a variety of pets, with options for both free and premium experiences.
- HealthKit step tracking
- Virtual pet evolution
- Water intake monitoring
- AI-powered pet diary
- Home screen widgets
- Social leaderboards
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STEPPET: WALK. DRINK. EVOLVE. Turn your daily steps into magic. StepPet is a pedometer and virtual pet game that evolves your pets as you walk — powered by HealthKit integration, Apple Watch support, and offline-first step tracking. SMART STEP TRACKING - HealthKit integration: reads step count, distance, active energy, and Apple Watch data automatically - Works offline: no internet required for core tracking - Real-time counter: step total updates throughout the day - Privacy-first: step data stays on-device and is never used for ads or profiling COLLECT AND EVOLVE 20 UNIQUE PETS - 5 evolution stages per pet: egg, baby, teen, adult, legendary - 4 free pets: Cat, Dog, Rabbit, Hamster - 16 premium pets: Dragon, Unicorn, Phoenix, Slime, Robot, Serpent, Alligator, Bear, Deer, Fox, Hedgehog, Owl, Panda, Penguin, Turtle, Wolf - 100 pet-stage combinations to collect - New seasonal pets added regularly - No pay-to-win: earn coins through daily bonuses and reward ads to unlock premium pets without paying AI-POWERED PET DIARY Your pet writes a daily diary reflecting its mood, your activity level, and its unique personality. Every pet has a different voice. Every entry is different. WATER TRACKING AND HEALTH INSIGHTS - 8-glass daily water goal with progress tracking - Weekly charts and monthly heatmap calendar - Health score system (letter grades A through F) - Calorie and BMI calculator - Offline history stored locally HOME SCREEN WIDGET - Small and Medium widget sizes - Shows live steps, distance, calories, water intake, and your active pet - Updates automatically throughout the day LEADERBOARDS AND SOCIAL - Weekly step competitions with friends - Friend gifts and global leaderboards - Streak tracking to build consistent walking habits PRIVACY-FIRST DESIGN - Offline-first: your step and pet data live on-device by default - Optional Firebase cloud sync for cross-device backup - Encrypted local storage - Delete account and all data anytime from Settings Premium unlocks: - All 20 pets immediately - Remove in-app ads - Daily premium coin bonus - Unlimited AI diary entries - Exclusive seasonal pets PERMISSIONS EXPLAINED - Health and Fitness (HealthKit): reads step count activity to feed your pet - Motion: pedometer sensor for step counting - Notifications: optional daily reminders (user can disable) PERFECT FOR - Step counter enthusiasts - Virtual pet and Tamagotchi fans - Fitness trackers seeking gamification - Apple Watch users wanting a fun activity tracker - Anyone building a daily walking habit Walk with purpose. Evolve your pet. Make every step count. Terms of Use: https://just-447015.web.app/terms.html
Underfoot
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Your steps already add up to something. This app decides what. Underfoot turns the steps your phone already counts into distance along a real long-distance route: the actual surveyed line, with its actual length, its actual climbs and its actual places. Walk your usual day, and you move a little further down the trail. FOUR ROUTES, ALL ON YOUR PHONE • Appalachian Trail - 3,478 km, Georgia to Maine, 18 sections. Free, all of it. • Pacific Crest Trail - 4,269 km, desert to the North Cascades, 20 sections. • Route 66 - 3,643 km, Chicago to the Pacific, 20 sections. • Camino de Santiago - 762 km across northern Spain, 7 sections. Nothing is downloaded later. Every route is in the app from the first launch, and it all works in airplane mode. PAINTED, NOT PHOTOGRAPHED 128 original paintings, one for every stretch of country you walk through, in daylight and at night. The season is baked into each one, so a year passes while you walk: early spring in Georgia, high summer in Virginia, late autumn at the end. A JOURNAL THAT BECOMES A BOOK One line a day, in your words. Along the way you pass named places: shelters with the year they were built, passes, towns, roadside stops, and find what somebody walking before you wrote there. After a year you have something you won't want to lose. SECTIONS, NOT ONE ENDLESS LINE A long trail takes years at an honest pace, so the unit that matters is the section: a month or two, ending in something. Eighteen of them on the Appalachian Trail alone. NO STREAKS, NO GUILT A day without walking is called a zero day, and on a real trail it is completely normal. Nothing here burns down, nothing scolds you, nothing asks you to come back tomorrow or lose what you built. NOTHING LEAVES YOUR DEVICE No account, no server, no analytics, no third-party code of any kind. Your steps are read from Health on your phone and stay there. Progress syncs between your own devices through your private iCloud, and nowhere else. WIDGETS One for each trail you're walking, in four sizes, including the Lock Screen. FREE AND PRO The Appalachian Trail is free in full: every section, every painting, the journal, the widget. Pro opens the rest of the catalogue, lets you walk several routes at once, writes fresh journal entries on your device, and exports your journal as a book. For motivation, not for navigation. This is not a hiking navigation app and carries no GPS guidance of any kind. Route data comes from public surveys and is credited in the app. Not affiliated with or endorsed by the Appalachian Trail Conservancy, the Pacific Crest Trail Association, or the National Park Service. SUBSCRIPTION DETAILS Underfoot Pro is offered as a monthly subscription (US$4.99 per month) and a yearly subscription (US$29.99 per year). Lifetime (US$59.99) is a one-time purchase, not a subscription. Prices are in US dollars and may differ in other regions. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless it is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Subscriptions can be managed, and auto-renewal turned off, in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tasty-adasaurus-c8c.notion.site/Underfoot-Privacy-Policy-3dde95387907802aa9d0fd753e3eb287
Screenshots
Verdict
The clearest difference is update cadence: Underfoot at every 4 days against StepPet's every 3 weeks. StepPet's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support 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
Both are free to download. StepPet sells 2 in-app purchases, starting at $2.99 per month and Underfoot sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
StepPet ships an update every 3 weeks, Underfoot every 4 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | StepPet | Underfoot |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 100 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Phonthip Satthabun | Uladzislau Zakharo |
In-app purchases
StepPet
- StepPet Premium Monthly$2.991 Month
- Premium Yearly7 Days trial$19.991 Year
Underfoot
- Monthly$4.991 Month
- Yearly$29.991 Year
- Lifetime$59.99









