Petal vs FastLine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Petal
This app transforms daily habit tracking into a visual journey, where each day completed adds a petal to a blooming flower. It supports various 75-day challenge variants and allows users to share their progress with visually appealing milestone cards.
- Visual flower-based habit tracking
- Supports multiple 75-day challenge variants
- Shareable bloom milestone cards
- Privacy-first, local data storage
- Lifetime Pro unlock option
- Twelve flower species to choose from
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Petal turns your 75-day challenge into a flower. Tap today's petal. Complete your habits. Watch your bloom open one day at a time. In 30 seconds a day, your progress becomes a flower you can see, share, and keep. YOUR DAILY RITUAL, AS A FLOWER A single bloom holds 75 petals, one for each day. There are no spreadsheets and no crowded dashboards — just today's habits and the flower you are growing. EVERY 75-DAY STYLE • 75 Soft — gentle daily habits, no resets • 75 Hard — all-or-nothing structure • 75 Medium — flexible, sustainable progress • 75 Balanced — wellness over hustle • 75 Grow — choose three habits of your own • Custom — create the challenge that fits your season BLOOM WITH FRIENDS Start a private squad or join a friend's challenge. Grow side by side, see each other's flowers open, and celebrate progress together. SHARE YOUR BLOOM Petal creates milestone cards at Day 25, Day 50, and Day 75, ready for Instagram Stories, TikTok, Messages, or your camera roll. MAKE IT YOURS Choose from free and premium flower species. Petal Pro also lets you keep every completed flower in a permanent garden, host private group challenges, tend multiple blooms, use unlimited bloom freezes, and enjoy Petal without ads. CHOOSE THE PLAN THAT FITS Petal Pro is available as monthly, yearly, or lifetime access. Prices are shown in the app using your App Store storefront. Existing lifetime owners keep permanent Pro access. PRIVACY BY DESIGN Your personal challenge and habit history stay on your device. No account is required. If you use squads, anonymous bloom progress is synchronized so your group can grow together. Petal may collect aggregate usage and advertising data as described in the App Privacy section and Privacy Policy. Your 75-day bloom starts here. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://petal-3fb71.web.app/privacy
FastLine
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FastLine is the intermittent fasting timer that does the one thing you actually open the app for — beautifully — and doesn't charge you $70 a year for a countdown. Start a fast and a clean count-up ring shows your elapsed time, your current stage, and how long until your goal. It lives where you'll actually see it: on your Lock Screen and in the Dynamic Island as a Live Activity, and on your Home Screen as a widget. No need to keep opening the app. HONEST PRICING The timer, fasting stages, history and stats are free, forever. Pro is an optional upgrade at a fair price — about twenty dollars a year, or a one-time lifetime unlock — not a $70 subscription hidden behind a countdown. WHAT YOU GET, FREE • Count-up fasting ring with time elapsed and time remaining • Popular protocols: 16:8, 18:6, 20:4 and OMAD • Live Activity on the Lock Screen + Dynamic Island • Home Screen widget • Educational fasting stages as the hours pass • History, current streak, averages and a 14-day chart PRO (OPTIONAL) • Custom fasting goals — set your own hours • Mood & energy notes on every fast • Weight trend from Apple Health • Export your history to CSV ON YOUR WRIST Glance at your fast on Apple Watch and start or end it without reaching for your phone. PRIVATE BY DEFAULT No account. No backend. Your fasts stay on your device. FastLine reads your weight from Apple Health only if you turn it on, and never writes your data anywhere. A NOTE ON HEALTH FastLine is an educational tracking tool, not medical advice. Fasting isn't right for everyone — talk to a doctor before making changes, especially if you are pregnant, nursing, taking medication, or have a history of disordered eating. Privacy Policy: https://moathothman.github.io/ExploringIdeas-legal/fastline/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: FastLine at none against Petal's shown. Petal's advantage is update cadence (every 10 days vs monthly) and iOS requirement (15.1 vs 17.0). On price, 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. Petal sells 3 in-app purchases, starting at $6.99 per month and FastLine sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Petal ships an update every 10 days, FastLine monthly. Both last shipped on October 25, 2026.
| Parameter | Petal | FastLine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 10 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 45 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Kwan Cheng Lee | Moaath Othman |
In-app purchases
Petal
- Petal Pro — Monthly$6.991 Month
- Petal Pro — Yearly$19.991 Year
- Petal Pro Lifetime$29.99
FastLine
- Pro Monthly7 Days trial$2.991 Month
- FastLine Pro14 Days trial$19.991 Year
- FastLine Pro$29.99









