Zero alternative — fasting plus the entire food side
Zero is the most mature fasting app, now with AI meal logging in Plus. Swoodie keeps the fasting tracker free, syncs windows with a partner and adds recipes, planning and a couples mode.
The bottom line
Zero grew from a fasting timer into a fasting-led wellness tracker — Plus now includes AI photo meal logging with a protein score. But it remains eating-window-first and solo: no recipes, no planning, no partner sync. Swoodie overlaps on the fasting basics (six protocols, free tracker), adds Fast Together, and covers the cooking-and-couples layer Zero never touches — for $30 less a year.
Zero earned its place as the fasting app — fasting stages, streaks, longevity content, and 445K+ ratings at 4.8 stars. Zero Plus now adds AI photo meal logging with a protein focus, a barcode scanner and sleep, activity and mood logging.
What Zero still skips is everything around the fast: no recipes, no meal planner, no shopping list, and fasting stays solo. Swoodie ships six protocols with the tracker free, Fast Together for partner-synced windows, and the whole food side — 8,000+ recipes, Chef AI, AI meal planning and Swipe Together — at $39.99/year against Zero Plus at $69.99.
Feature by feature
| Feature |  Swoodie | Zero |
|---|---|---|
| Permanent free plan (not a trial) | Free — $0 forever | Free basic timer |
| Annual price | $39.99 / year | $69.99/yr Plus |
| Start without creating an account | Free — guest mode | Account required |
| AI features without paying | 5 free one-time uses, no card | AI logging is Plus-only |
| AI photo calorie / meal scan | Trial — 5 free uses, then Premium | Plus — AI photo logging |
| Multi-photo / multi-dish scan | Trial — 5 free uses, then Premium | |
| Barcode scanner | Trial — 5 free uses, then Premium | Plus |
| Log a meal you ate ("ate it") | Free — basic calorie logging | Most logging sits in Plus |
| Meal journal / food diary | Free: last 3 days · Premium: full history | Plus |
| Recipe discovery / browse | Free — 8,000+ recipe library | |
| Swipe-to-choose recipe UX | Free | |
| Filter recipes by ingredients you have | Free — Discover Mode | |
| AI recipe generation (Chef AI) | Trial — 5 free uses, then Premium | |
| Import a recipe from a video / social post | Trial — 5 free saves, then Premium | |
| Hands-free voice cooking mode | Free | |
| Multi-day meal planner (1/3/7-day) | Trial — 5 free uses, then Premium | |
| AI-built meal plan | Trial — 5 free uses, then Premium | |
| Shopping list merges duplicate ingredients | Trial — built with the plan | |
| Real-time couples meal matching (Swipe Together) | Host: Premium · Join: Free | |
| Shared meal plan | Premium | |
| Separate macro targets per person | Premium | |
| Multi-person session (family / friends) | Host: Premium · Join: Free | |
| Intermittent fasting tracker | Tracker: Free · Coach quips: Premium | Best in class — core feature |
| Paired wellness accountability (2-person daily score) | Free — core pairing + score | Fasting is solo |
| Calorie & macro goal setting | Free | Protein score — Plus |
| Body-stat & weight tracking | Free — on-device | Weight + sleep, activity, mood |
| iOS app | ||
| Android app | ||
| UI languages | 8 (EN, DE, PL, FR, ES, PT, IT, TH) | English only |
Cost over time
Drag the slider to see what each app costs you across the years.
Over 2 years, Swoodie costs $79.98. Zero costs $139.98 — you save $60.
Swoodie is $39.99/year — about $3.33/month billed yearly.
Zero pricing verified June 2026 · source
Where Zero wins
Zero's fasting experience is the most mature in the category — fasting stages, streaks, insights and longevity coaching refined over nearly a decade, plus sleep, activity and mood logging that Swoodie doesn't attempt. If deep fasting science content is your anchor, Zero has no equal.
Honest scorecard
Where Swoodie wins
- Multi-photo / multi-dish scan
- Swipe-to-choose recipe UX
- Filter recipes by ingredients you have
- Import a recipe from a video / social post
- Hands-free voice cooking mode
- Shopping list merges duplicate ingredients
- Real-time couples meal matching (Swipe Together)
- Shared meal plan
- … and 3 more on the full matrix above
Where Zero wins
- Intermittent fasting tracker
The verdict
Switch to Swoodie if…
you want the fasting tracker free instead of behind Plus, want to fast in sync with a partner via Fast Together, or want the same app to cover recipes, meal planning and what you eat between fasts.
Stay with Zero if…
fasting stages, longevity content and sleep/mood logging are your core routine, or you have years of fasting history in Zero.
We put these comparisons together from publicly available information and each app's own website. Prices and features change — if you spot anything inaccurate or out of date, email support@swoodie.app and we'll correct it. We want this comparison to stay fair.
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