StepFill vs NekoWalk
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
StepFill
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StepFill is the fastest, cleanest way to add the steps you walked β but didn't capture β to Apple Health. Walked on a treadmill, did cardio at the gym, took the dog out, or left your phone on the desk? Those steps really happened, but they never made it into Health. StepFill puts them back in seconds β no digging through Health's slow, one-at-a-time manual entry. HOW IT WORKS 1. Choose your activity β walking or running 2. Set when you did it β the start and end time 3. StepFill estimates the steps and saves them to Apple Health The estimate follows a realistic pace that varies minute to minute, so a 30-minute treadmill walk lands in Health as natural, uneven step data. Your steps are saved as regular step data, kept in Health on your device. SEE YOUR PROGRESS β’ A contribution heatmap shows your activity at a glance, color-coded around a 10,000-step daily goal β’ Tap any day for an hour-by-hour bar chart and the full list of entries β’ Edit or delete the entries you added, anytime β’ Viewing your history is always free PRIVATE BY DESIGN β’ Works entirely on your device β StepFill makes no network connections at all β’ No accounts, no sign-in, no tracking, no ads β’ No analytics and no third-party SDKs β’ Your step data is read only on your device β to show your history and let you edit your own entries β and never leaves your device STEPFILL PREMIUM Adding, editing, and deleting steps is part of StepFill Premium. Every new install starts with a 3-day free trial with full access β no purchase required. After the trial, unlock unlimited writing with a monthly or yearly subscription, or a one-time lifetime purchase. Viewing your history stays free, always. Restore previous purchases anytime. GOOD TO KNOW StepFill writes to Apple Health, so it needs a device that supports HealthKit and your permission to add steps. You can review or remove anything StepFill saved at any time in the Health app under Steps. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period. Manage or cancel in your App Store account settings. Terms of Use: https://yusuke.ca/stepfill/terms Privacy Policy: https://yusuke.ca/stepfill/privacy The honest, effortless way to keep your step history complete.
NekoWalk
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Walk to make a cat happy. Every step you take today turns into "paw coins" you can spend on food and toys for your cat. And on the days you can't walk? That's okay. Your cat will be waiting in its usual spot. YOUR DAILY NEKOWALK - Steps from Apple Health automatically become coins (100 steps = 1 coin, no daily limit) - Spend coins on food, toys, furniture, and room themes - 140 coat colors and 6 personalities that change how your cat behaves and what it asks for - Adopt up to 140 cats - On adoption day you call out a name and say hello for the first time β the day they arrived stays in their record - Care for a cat and fluff comes off (once a day per cat) - The colour comes from the cat's coat; collect it to make 76 decorations and wearables - Ask Siri or use Shortcuts to hear today's steps, collect your coins, or check on your cat - What your cat got up to while you were away, and night visitors (strays kept in the Guest Book) - Real weather outside the window (turn it on in Settings; approximate location only) - Find a walking course: browse courses in Japan and Taiwan by area. Tap "Nearby" and, only then, your approximate location finds parks and round-trip steps (never stored) - Your adopted cat's coat colour as the app icon, and dress-up photos - Walk Together: once a month, everyone's steps add up to one shared goal. Clear it for a keepsake badge FUR BALL BREAKER (SINCE 4.7) - A small game where you break stacked blocks with your fluff balls - Drag to aim, let go to fire; your next shot begins when they all return - The more fluff you hold, the bigger and stronger your balls - Block patterns behave differently: tough, bouncy, slippy, burst - Three ways to play: Story (300 levels, 30 chapters), Rush, Spark - Fluff from clearing a board goes to the colours your next wearable still needs (you can pick what to aim for) - Skipping it costs you nothing in the main game - Nothing collectible (cats, treasures, the picture book) is game-only A LOOSE LOG (SINCE 4.8) - The Body tab shows "Eaten" and "Moved" side by side - For meals you just pick one of three portion sizes; no numbers to type - The moved side comes from Health. The figures are rough estimates - No calorie targets, no remaining budget - No praise or scolding for gaining or losing GETTING TO KNOW THEM - A favorite food, a favorite game, the time of day they usually turn up, little quirks - Everything you give is kept in Favorites Notes, with its picture and name - Once you're close, your cat starts bringing you things it found lying around (420 kinds in all) FOR THE DAYS YOU CAN'T KEEP UP - Your cat never gets sick, and never leaves - Free "emergency food" keeps your cat fed while you're away - One rest day every week. Resting never costs you anything - Come back after a while and you're greeted with "welcome home" β never a word of blame HEALTH, KEPT GENTLE - Look back on your steps and your weight in the same place, side by side - A quiet weekly report arrives every Sunday - Weight tracking is optional and can be hidden completely - Whether the number goes up or down, it's received the same way β no reward is ever conditioned on losing weight - Step goals adjust in small weekly increments, at a pace that lasts ABOUT PURCHASES & ADS (THE HONEST VERSION) - Coins can never be bought with money - There is no gacha - Everything essential β feeding, cleaning, cuddling β stays free forever - Limited cats and limited themes are nice-to-haves, never must-haves - "Gift Delivery": watch an optional video ad for emergency food, a treat, or a trinket (up to 8 times a day) PRIVACY - From Apple Health we read steps, distance and active energy β plus weight, only if you use it - We never write to Health. What we read is processed on your device. Only if you join "Walk Together" is your daily step total sent (not linked to your name; used only for everyone's total and to improve the app, never for ads) Tomorrow, how about a short walk with your cat?
Screenshots
Verdict
The clearest difference is ads: StepFill at none against NekoWalk's shown. NekoWalk's advantage is update cadence (daily vs every 10 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. StepFill sells 3 in-app purchases, starting at $2.99 per month and NekoWalk sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
StepFill ships an update every 10 days, NekoWalk daily. The most recent releases landed on October 14, 2026 and October 29, 2026 respectively.
| Parameter | StepFill | NekoWalk |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Daily β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, Apple Watch β better |
| Requires iOS | 18.0 | 17.0 β better |
| Further details β not scored | ||
| Size | 1 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Yusuke Morishita | ζ ͺεΌδΌη€ΎSCOOOOP |
In-app purchases
StepFill
- Monthly Premium$2.991 Month
- Yearly Premium$29.991 Year
- Lifetime$69.99
NekoWalk
- Time Leap Ticket$0.99
- 1-Week Time Leap$1.99
- 1-Month Time Leap$2.99
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- Onsen Theme$2.99
- Candy Theme$2.99
- Christmas Theme$2.99
- Special Cat: Sunset$3.99
- Special Cat: Mint$3.99
- Special Cat: Lavender$3.99
- Special Cat: Golden$5.99
- Special Cat: Silver$5.99
- Special Cat: Cloud$5.99
- Special Cat: Starry$6.99









