Comparison

FastFlow vs Fastivo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FastFlow

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シンプルで美しい断食タイマーアプリ。 間欠的断食(インターミッテント・ファスティング)を簡単に記録・管理できます。 【主な機能】 • ワンタップで断食開始 • 16:8、18:6、20:4など人気のプランを用意 • カスタム断食時間の設定 • 進捗をリアルタイムで確認 • 履歴と統計で成果を可視化 • 断食完了時の通知 【こんな方におすすめ】 • 健康的なライフスタイルを目指す方 • ダイエットを習慣化したい方 • シンプルなアプリを好む方 【Premium機能】 • 詳細な週間・月間統計 • 無制限の履歴保存 • カスタムテーマ ※本アプリは医療アドバイスを提供するものではありません。断食を始める前に医師にご相談ください。 利用規約:https://apps.qursor-dev.com/app/6755752536/terms

About

Fastivo

Features
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You've tried intermittent fasting. Not because you gave up — you forgot to start the timer. Fastivo fixes the system, not the willpower. Set your fasting window once, get notified when it opens and closes, and watch your streak build. No calorie counting, no food restrictions. Just structure. 【What Changes When You Start Fasting】 • Weight drops naturally as your eating window shrinks • Mental clarity and metabolism improve during fasting • You build a lasting habit with streaks and progress stats • AI coaching after every fast tells you what's working (Premium) 【Built for Your Daily Life】 - 5 protocols: 16:8, 18:6, 20:4, OMAD (23:1), or custom - Background timer — works accurately even when your phone is locked - Monthly calendar view to see your fasting history at a glance - Weight and wellness logging - Smart notifications: 30-minute warning + completion alert People say things like: "I lost 12 lbs in 8 weeks just by changing when I eat. No diet." "I've tried every fasting app. This one actually keeps tracking when my phone is locked." "The streak was the only motivation I needed. 90 days and still going." "16:8? 18:6? OMAD? I have no idea where to start." — Start with 16:8: 16 hours fasting, 8-hour eating window. It's the most-used protocol because it fits into a normal day — stop eating at 8pm, skip breakfast, eat from noon. Once it feels natural, you can extend it or switch to custom. The only decision you need to make today is the first one. "I've failed at fasting before — I just don't have the willpower." — Fasting doesn't fail because of willpower. It fails because the timer doesn't work in the background, notifications miss, or one forgotten session collapses the streak. Fastivo fixes the mechanics so willpower doesn't have to carry everything. "I paid for a premium fasting app and still got flooded with ads." — Fastivo Premium is ad-free. No fine print, no residual ads after you've paid. "The first few days feel rough." — They usually do. Most users say hunger waves pass in 15 minutes, and by week two you stop noticing them. "When my eating window opens, I'm afraid I'll overeat." — It happens, especially at first. That's okay. The habit is what you're building, not perfection. Tap the timer. The rest follows. "Do I have to pay upfront?" — Nope. No sneaky free trials that auto-charge. Price is shown before you commit. Cancel anytime from Apple ID settings. 【Premium Plan】 - Monthly: $4.99/month - Annual: $34.99/year (save 42%) Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account at confirmation of purchase. Privacy Policy: https://fastivo-prod.web.app/privacy.html Terms of Use: https://fastivo-prod.web.app/terms.html Start your first fast today — real results from real consistency. 【From the Wellness Series — Related Apps】 If you're fasting for your health, you might also need: - Body Break (movement reminders to pair with your fasting routine) - Lumi Log (build consistent skincare alongside your fasting routine) Search each app name on the App Store. You might also like - Day Ritual – Daily Habits: One Goal. AI Builds Your Day. - FridgeCook AI - Recipe Finder: 3-Second Recipe. No Thinking. - Body Break Timer – Move & Rest: Reminders You Won't Turn Off Search for these apps by name on the App Store.

Screenshots

FastFlow4 screens
Fastivo4 screens

Verdict

The call

The clearest difference is ads: FastFlow at none against Fastivo's shown. Fastivo's advantage is update cadence (weekly vs every 4 months) and iOS requirement (15.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FastFlow sells 2 in-app purchases, starting at $2.99 per month and Fastivo sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FastFlow ships an update every 4 months, Fastivo weekly. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 3 level
FastFlow versus Fastivo: the parameters behind the verdict, then further details
ParameterFastFlowFastivo
PriceFreeFree
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size2 MB107 MB
Age rating4+4+
DeveloperRenzo OhhamaTomohito Kii

In-app purchases

2 purchases

FastFlow

Subscriptions2
  • FastFlow Premium - Monthly$2.991 Month
  • FastFlow Premium - Yearly7 Days trial$22.991 Year
3 purchases

Fastivo

Subscriptions2
  • Monthly - FastWise7 Days trial$2.991 Month
  • Annual - FastWise7 Days trial$14.991 Year
One-time1
  • Lifetime$29.99

Questions

Is FastFlow free?
FastFlow is free to download, with in-app purchases available.
Is Fastivo free?
Fastivo is free to download, with in-app purchases available.
Do FastFlow or Fastivo have ads?
Fastivo shows ads; FastFlow does not.
Which is updated more often, FastFlow or Fastivo?
FastFlow ships an update every 4 months, and Fastivo weekly. Most recently, FastFlow was updated on September 8, 2026 and Fastivo on September 19, 2026.

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