Comparison

FastBell vs ShiroWalk

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

Head to head
About

FastBell

Features
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FastBell is the simplest way to start intermittent fasting. When the bell rings, eat. When it rings again, stop. Simple enough to stick with. 6 FASTING PLANS - 12:12 β€” 12 hours fasting / 12 hours eating (free, gentle start) - 14:10 β€” 14 hours fasting / 10 hours eating (free, easy intro) - 16:8 β€” 16 hours fasting / 8 hours eating (most popular) - 18:6 β€” 18 hours fasting / 6 hours eating - 20:4 β€” 20 hours fasting / 4 hours eating - OMAD β€” One Meal A Day (23:1) KEY FEATURES - Large countdown timer shows remaining time at a glance - Start and stop fasting with a single tap - Streak tracking to build your fasting habit - Push notifications when fasting starts and ends - Dark theme for comfortable nighttime use - Fully offline β€” no internet required - No ads β€” stay focused PRIVACY FIRST All data stays on your device. Nothing is ever sent to a server. FASTBELL PRO Upgrade to Pro to unlock the 16:8, 18:6, 20:4, and OMAD plans, detailed statistics, custom notifications, and widgets. 12:12 and 14:10 are free. Subscription Info: - Weekly, monthly, and yearly plans available - Billing begins after you confirm the selected plan - Payment is charged to your Apple ID account - Subscription auto-renews unless canceled at least 24 hours before the end of the current period - Manage or cancel in Settings > Apple ID > Subscriptions Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://starcrown.co.jp/privacy

About

ShiroWalk

Features
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Walk your steps. Build Japan's legendary castles. No ads. No gacha. At your own pace. ShiroWalk is a collection-style walking game where your daily steps bring Japan's iconic castles to life β€” across 7 historic stages: Castle Plan, Stonework, First Tier, Tiled Roof, Keep, White Walls, and Completion. Every castle in ShiroWalk is an AI-generated artistic interpretation inspired by the real castle β€” not a historically accurate reconstruction. β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” Why ShiroWalk β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” β–  Zero ads. No gacha. Monthly subscription. No ad interruptions, no random pulls. Walk at your own pace, on your own terms. β–  47 Castles Γ— 7 Stages From Hokkaido to Okinawa β€” all 47 prefectures. Each castle transforms through all 7 stages, from empty lot to completion. Complete one castle to unlock the next. Watch your collection map turn gold. β–  4 Legendary Phantom Castles (not for sale) Earn special titles to unlock historically lost castles: Β· Complete all 47 β†’ Edo Castle (destroyed 1657) Β· 1,000,000 steps β†’ Golden Azuchi Castle (Nobunaga's lost masterpiece, 1582) Β· 5,000,000 steps β†’ Heian Imperial Palace Β· 100 consecutive days β†’ Hiraizumi Muryoukouin These can never be purchased. Walking earns them. β–  21 Achievement Titles Earn titles for castle completions, total steps, streaks, regional mastery, and more. β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” Key Features β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” β–  Choose your first castle from three Start free with Osaka, Nagoya, or Edo Castle. This first castle has a shortened step requirement β€” about a week at 7,000 steps a day. Subscribe or use a Castle Select Ticket to take on the remaining 46. β–  Castle Select Ticket Want just one specific castle without subscribing? One ticket = one castle instantly unlocked. β–  Castle Encyclopedia All 47 castles listed. Locked castles show a lock icon; active and completed castles show their current stage. Tap any castle to see detailed progress. β–  Completion Ceremony Reach your step goal and watch your castle come to life. β–  Widget (Lock Screen / Home Screen) See today's castle progress without opening the app. β–  A gentle word at every milestone ShiroWalk sends encouragement as your castle grows. Never pushy, never urgent. β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” How steps work β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” ShiroWalk reads your steps from Apple Health (read-only β€” it never writes to Apple Health, and your step data is never uploaded). Most castles require roughly 70,000–300,000 steps to complete, depending on the castle. Your first castle is shortened to about 50,000 β€” around a week at 7,000 steps a day. β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” For you if... β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” Β· You struggle to stay motivated to walk Β· You're tired of subscription overload and ads Β· You love Japanese history, castles, or samurai Β· You enjoy collection games or sim games Β· You want a calm game with no pressure Β· You loved PixelPot or Forest ShiroWalk. One step at a time. β€”β€”β€” Terms of Use (EULA): https://hiroooo.github.io/shirowalk/terms-of-service/ Privacy Policy: https://hiroooo.github.io/shirowalk/privacy-policy/

Screenshots

FastBell3 screens
ShiroWalk4 screens

Verdict

The call

FastBell and ShiroWalk are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. FastBell sells 1 in-app purchase, starting at $0.99 per 7 days and ShiroWalk sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
FastBell versus ShiroWalk: the parameters behind the verdict, then further details
ParameterFastBellShiroWalk
PriceFreeFree
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS17.017.0
Further details β€” not scored
Size4 MB212 MB
Age rating4+4+
DeveloperStarcrown Inchiroaki suzuki

In-app purchases

1 purchases

FastBell

Subscriptions1
  • FastBell Pro Weekly3 Days trial$0.997 Days
7 purchases

ShiroWalk

Subscriptions2
  • Monthly Premium7 Days trial$2.991 Month
  • Annual Premium14 Days trial$29.991 Year
One-time5
  • Castle Boost Small$0.99
  • Castle Select Ticket$0.99
  • Castle Boost Medium$1.99
Show 2 more
  • Castle Boost Large$2.99
  • Founder Lifetime$59.99

Questions

Is FastBell free?
FastBell is free to download, with in-app purchases available.
Is ShiroWalk free?
ShiroWalk is free to download, with in-app purchases available.
Do FastBell or ShiroWalk have ads?
Neither FastBell nor ShiroWalk shows ads.
Which is updated more often, FastBell or ShiroWalk?
FastBell ships an update every 5 days, and ShiroWalk every 5 days. Most recently, FastBell was updated on October 22, 2026 and ShiroWalk on October 28, 2026.

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