StepFox vs HyNext
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StepFox
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Every entry saves steps, estimated distance, and a workout. Walking and brisk walking use Walking; running uses Running. AI Steps saves your confirmed total as segmented entries; Single entry saves one entry. The total stays unchanged, and segments are estimates. Quick step entry • Enter a number or use quick adjustment buttons • Choose walking, brisk walking, or running • Set an earlier completion date and time • Review estimated start, completion, and duration before saving • See estimated distance and duration • Add a mood and optional note • Browse one week and one day at a time, or jump to a date • Edit steps, mood, and note; the matching Health samples update • See daily StepFox totals and mood summaries • Add body weight for per-entry energy and today’s subtotal • View 7- or 30-day estimated-energy charts • Clear a date; free users watch a rewarded ad first • Small and medium widgets show today’s total and additions • Widgets include mood-based encouragement • Widgets follow the selected fox and scene • Lock Screen widgets show compact step information Keep going with Challenges • Add 500, 1,000, 5,000, or a custom amount to today’s Health total • Get an on-device notification at the goal, then continue higher • Optionally show progress on the Lock Screen and supported Dynamic Island • Challenges read today’s total but never add or change steps Clear HealthKit boundaries • Only steps are read. Steps, walking + running distance, and workouts are saved. Height and weight are not read. • Every entry saves steps, estimated distance, and a workout. Walking and brisk walking use Walking; running uses Running. • Height, weight, speed, calories, mood, and notes stay locally in StepFox. Estimated distance and activity times are saved to Apple Health with the entry. • Mood and notes never enter Health or leave the device • StepFox explains where to enable step access when needed • It never reads body weight or writes estimated energy to Health • Deletion affects only samples created by StepFox, never other sources Ads do not block core features The free version shows banners on Add Steps, Challenges, Energy, and Records, plus a dismissible interstitial after every third successful Health write. A rewarded ad gives one ad-free hour and is required before a free user clears a day. Entry and Challenges still work if ads fail or tracking is denied. Walk, level up, and meet foxes • Entry days raise the local fox level and unlock more foxes • Some foxes are Pro exclusive • Each fox brings its own sky, and every tab follows its colors; your fox cheers after saving • Progress never uses HealthKit step totals StepFox Pro Monthly and yearly auto-renewable subscriptions remove ads and unlock every fox. Core Health entry, records, and Challenges stay free. • Monthly: NT$50, renews monthly • Yearly: NT$390, renews yearly (NT$32.5/month average) • Payment is charged to your Apple ID at purchase confirmation • Renewal is automatic unless disabled at least 24 hours before the period ends; the account is charged within those final 24 hours • Manage or cancel in App Store account settings Personalized ads are disabled. Steps, activity, speed, challenge goals, and HealthKit content are not sent to advertising or analytics services. Distance, speed, duration, and energy are estimates, not sensor or medical measurements. Energy includes only StepFox entries, not steps recorded automatically by iPhone or Apple Watch. StepFox offers no diagnosis or treatment advice. Privacy Policy: https://israynotarray.dev/app/stepnote-privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
HyNext
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HyNext. Built for muscle growth. No more working out how much to add next time. HyNext looks at how many reps you actually did in every set and plans your next weights and reps. Every recommendation says where it comes from: research, common coaching practice, or HyNext's own method. The engine plans it for you. If you disagree, you can change it any time. Free ・Generates a program from your training experience, body type and the look you want, your goal, available equipment and training days per week ・Log every set, exercise library with how-to guides, history and personal bests ・Optional sign-in and cloud backup, so your training log comes with you to a new phone Full version (all features free for the first 14 days, counted from the first time you open the app, no payment needed) ・Decides after every workout whether to add weight, hold or drop ・Gives you a little more rest when your reps drop too much between sets ・Explains why you are stuck and what to do next, not just "keep going" ・Adds sets in small steps during a muscle-gain phase, and watches for two weeks after each increase before asking again; suggests a deload when recovery can't keep up ・Make up or skip missed sessions ・Weekly reports, a yearly review, body weight and per-exercise trends ・The evidence and studies behind every recommendation No ads. HyNext full version is an auto-renewing subscription: ・Monthly NT$150 / month ・Yearly NT$1,000 / year ・These are early-bird prices; the actual price and currency are shown in the App Store ・Payment is charged to your Apple ID account when you confirm the purchase ・The subscription renews automatically unless cancelled before the end of the current period; you can manage or cancel it any time in your App Store account settings Privacy Policy: https://hynext.space-yuan.com/docs/legal/en/privacy-policy.md Terms of Service: https://hynext.space-yuan.com/docs/legal/en/terms.md
Screenshots
Verdict
The clearest difference is ads: HyNext at none against StepFox's shown. HyNext also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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. StepFox sells 2 in-app purchases, starting at $1.99 per month and HyNext sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | StepFox | HyNext |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | RUEI HUNG SHIU | YUYUAN LIU |
In-app purchases
StepFox
- StepFox Pro Monthly$1.991 Month
- StepFox Pro Yearly$11.991 Year
HyNext
- 完整版 · 月$4.991 Month
- 完整版 · 年$29.991 Year









