Zafit AI vs BlockStep
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Zafit AI
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Zafit AI is a private, all-in-one health and fitness coach on your iPhone. Snap a meal for calories and macros, scan your body with your phone camera, and ask an AI Coach that works from your own logs. Stop juggling a calorie counter, a workout log, a sleep app and a scoreboard. Zafit puts them in one place, and your health data is never sold. WHAT YOU CAN DO AI COACH - Ask about your training, food or sleep and get a plain-language answer built from what you have logged in Zafit. - Chat history on Pro; voice consults with AI specialists on Premium. MEAL SCAN AND CALORIE TRACKING - Take a photo of your meal or scan a barcode and Zafit estimates calories and macros. - Log foods, track water, follow calorie and protein targets, use the fasting timer. BODY SCAN - Two photos, front and side, and AI estimates your body composition with your phone camera. No wearable needed. - Progress photos with AI compare on Pro. PLANS THAT ADAPT - Workout, meal and sleep plans generated from your goals and rebuilt as your week actually goes. - Strength logs, personal records, interval timer, and GPS tracking for runs, walks and rides. MATCHES - Score your games and keep them next to the rest of your training. - Tennis, padel, pickleball, badminton, squash, table tennis, volleyball, cricket, football, basketball, or build your own custom sport. - Match history, head-to-head, tournaments and leaderboards. SLEEP AND RECOVERY - Sleep scores, trends and a smart alarm. - Activity rings and steps that sync with Apple Health. - Recovery and strain scoring on Premium. COMMUNITY - Join a community with an invite code, share progress and join challenges. Always optional. MORE IN ONE PLACE - Blood work upload with AI insights (Premium), skin and cycle tracking, habits, medications, PHQ-9 and GAD-7 questionnaires, and 200+ health calculators. - Connect Grocerr AI, our sister grocery app, to bring your pantry and lists into your coaching. Read-only, you approve it, disconnect any time. - Export your data as JSON, CSV or a PDF report. PRIVATE BY DESIGN - Your health data is stored on a server we operate, encrypted in transit and at rest. - We do not sell your data and we do not run ads. - Delete your account and your data from inside the app. ZAFIT FREE, PRO AND PREMIUM Free: meal, workout and sleep tracking, a few AI Coach messages and scans each day, community, matches and challenges. Pro: unlimited AI Coach and body scans, AI workout and meal plans, interval timer, personal records, progress photo compare, data export. Premium: everything in Pro plus voice and live video consults, blood work insights, skin, cycle and sleep deep-dives, recovery and strain scoring. SUBSCRIPTION DETAILS - Zafit Pro: $9.99 per month (includes a 7-day free trial for new subscribers) or $69.99 per year. - Zafit Premium: $19.99 per month or $199.99 per year. - Prices in US dollars; the App Store shows your regional price first. - Payment is charged to your Apple Account at confirmation of purchase, or at the end of the free trial. Cancel at least 24 hours before the end of the trial and you will not be charged. - Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the period. - Manage or cancel any time in Settings > Apple Account > Subscriptions. Any unused part of a free trial is forfeited when you buy a subscription. Terms of Use: https://zafitai.com/terms.html Apple standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zafitai.com/privacy.html IMPORTANT Zafit is a wellness and fitness tool. The AI Coach, plans, scans and insights are general guidance and estimates, not medical advice, diagnosis or treatment. Body scan and meal scan results are estimates. Talk to a doctor before changing your diet or exercise, and about any medical concern. Questions? zafitai1234@gmail.com
BlockStep
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BlockStep turns walking into building. Every step you take lays one block. Reach your daily Goal and the day's structure is complete; fall short and you keep exactly what you built โ the scaffolding stays where you stopped, honestly. A NEW STRUCTURE EVERY DAY Ninety-one authored pieces across thirteen chapters โ a cottage, a lighthouse, a locomotive, a hot air balloon, a kraken. Everyone walks the same order from their own first day, so what you meet on day four is a decision somebody made, not an accident of the calendar. YOUR GOAL, YOUR RESOLUTION Set it anywhere from 500 to 30,000 steps. The same structure is built at whatever detail your Goal implies โ a modest Goal makes a bolder, chunkier object; an ambitious one makes a finer, more detailed one. Nobody is building a worse version of anything. KEEP GOING A Streak counts the days you finished. Crown a structure by walking 150% of your Goal and you bank a Shield, which quietly saves a day you missed. Ill, or away? Mark the day โ your Streak holds where it is, and never pretends you walked. EXTRA STEPS GO SOMEWHERE Walked past your Goal? Point the overflow at an unfinished day from your Collection and finish that one too. The record keeps both truths: what you walked that day, and that a later day completed it. WHERE YOU LEFT IT Every past day is in your Collection: scroll it, open one, and turn it in your hand. Twenty Badges mark what the walking has earned โ firsts, streaks, hours, whole chapters โ and none of them can be un-earned. ON YOUR WRIST AND YOUR HOME SCREEN The watch app counts your steps on its own. The widget shows today's structure as it goes up. Walk mode puts it on your Lock Screen while you are out. IT FOLLOWS YOU Your Collection travels between your own devices through your own iCloud, so a new phone starts where the old one stopped. There is no account to make and nothing to sign in to. FREE, AND THE KIT The first fourteen Steps of the Sequence are free โ enough to see whether this is for you. After that the road begins again, and the Kit is a single $4.99 purchase that opens all ninety-one Builds and everything after them. No subscription, no ads, no second currency. Your walking counts either way: the Kit changes what gets built, never what gets recorded. PRIVACY BlockStep reads exactly one thing โ your step count โ and there is no server of ours for it to go to. No account, no analytics, no advertising, no tracking. Your Collection is mirrored into your own private iCloud database, which is yours: it lives in your Apple account and we have no key to it. A device that is not signed in to iCloud simply keeps its Collection locally.
Screenshots
Verdict
The clearest difference is device support: Zafit AI at 4 against BlockStep's 2. Zafit AI also leads on iOS requirement (15.1 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Zafit AI sells 4 in-app purchases, starting at $9.99 per month and BlockStep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Zafit AI ships an update every 2 days, BlockStep every 4 days. Both last shipped on October 31, 2026.
| Parameter | Zafit AI | BlockStep |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days โ better | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod, Apple Watch โ better | iPhone, Apple Watch |
| Requires iOS | 15.1 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 55 MB | 17 MB |
| Age rating | 12+ | 4+ |
| Developer | Sivaraman Balasubramanian | Caffeinated Code d.o.o. |
In-app purchases
Zafit AI
- pro monthly7 Days trial$9.991 Month
- Zafit AI$19.991 Month
- ZafitAI$69.991 Year
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- Zafit AI$199.991 Year
BlockStep
- The Kit$4.99









