Comparison

Fasting Clock vs Hollow

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

Head to head
About

Fasting Clock

Features
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Your personal fasting clock, starting from your last meal. The fasting clock records the time of your last meal and shows you exactly how much time remains until your fasting goal. Key Features - Fasting Timer Record your meal time with a single tap and track the time remaining to your goal β€” down to the hour, minute, and second in real time. - Storybook-Style Clock A beautifully crafted clock in a fairytale aesthetic. Your fasting progress fills in as an arc sweeping clockwise from the 12 o'clock position. - Multiple Goal Settings Set several fasting goals at once (e.g., 12h, 16h, 18h) using 8 color-coded slots, and switch between them with a tap to check your progress. - Goal Reached Notifications Get notified the moment you reach your fasting goal. Starting 10 minutes before, the clock begins to glow softly in that goal's color. - Fasting History Log Review your completed fasts on a calendar view, with color-coded dots marking each achievement. Tap any day for a detailed breakdown, and use filters to explore your patterns. - Seasonal Themes Gradient backgrounds shift automatically with the seasons β€” spring, summer, autumn, and winter β€” or switch manually to whichever season you prefer. - Korean / English Support The app detects your device language automatically, with the option to change it manually in settings. Recommended For - Anyone looking to build a consistent intermittent fasting (IF) habit - Those managing multiple fasting routines like 16:8 or 18:6 - Anyone who wants to visually track and reflect on their eating patterns

About

Hollow

Features
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곡볡 μ‹œκ°„μ„ μž¬λŠ” μ•±μž…λ‹ˆλ‹€. 단식 ν•œ 번이 타일 ν•œ μž₯이 λ©λ‹ˆλ‹€. 타일이 μ±„μ›Œμ§ˆμˆ˜λ‘ 며칠째인지가 ν•œλˆˆμ— 보이고 μ§„ν–‰ 쀑에도 이번 μ£Όκ°€ 화면에 계속 남아 μžˆμŠ΅λ‹ˆλ‹€. β–  μΉΌλ‘œλ¦¬λŠ” μ„Έμ§€ μ•ŠμŠ΅λ‹ˆλ‹€ 먹은 κ±Έ μž…λ ₯ν•˜κ±°λ‚˜ 사진을 찍지 μ•Šμ•„λ„ λ©λ‹ˆλ‹€. λˆ„λ₯Ό λ²„νŠΌμ€ μ‹œμž‘κ³Ό μ’…λ£Œ λ‘˜λΏμž…λ‹ˆλ‹€. β–  μ§€κΈˆ λͺΈμ΄ μ–΄λŠ ꡬ간인지 ν˜ˆλ‹Ή μ•ˆμ •, μ§€λ°© μ—°μ†Œ, μΌ€ν† μ‹œμŠ€μ²˜λŸΌ μ‹œκ°„μ— 따라 λ‹¬λΌμ§€λŠ” ꡬ간을 μ‹œκ°„μΆ•μ— ν‘œμ‹œν•©λ‹ˆλ‹€. λ‹€μŒ κ΅¬κ°„κΉŒμ§€ 남은 μ‹œκ°„λ„ ν•¨κ»˜ λ‚˜μ˜΅λ‹ˆλ‹€. β–  기둝은 κΈ°κΈ°μ—λ§Œ μ„œλ²„κ°€ μ—†μŠ΅λ‹ˆλ‹€. 단식 기둝, 체쀑, μˆ˜λΆ„μ€ μ „λΆ€ κΈ°κΈ° μ•ˆμ—λ§Œ μ €μž₯되고 μ–΄λ””λ‘œλ„ μ „μ†‘λ˜μ§€ μ•ŠμŠ΅λ‹ˆλ‹€. νšŒμ›κ°€μž…μ΄λ‚˜ 둜그인 없이 λ°”λ‘œ μ”λ‹ˆλ‹€. β–  μ‘°μš©ν•œ μ•Œλ¦Ό λͺ©ν‘œμ— λ‹Ώμ•˜μ„ λ•Œμ™€ μƒˆ ꡬ간에 λ“€μ–΄κ°ˆ λ•Œλ§Œ μ•Œλ¦½λ‹ˆλ‹€. μ•Œλ¦Όμ„ μ „λΆ€ 꺼도 앱은 κ·ΈλŒ€λ‘œ λŒμ•„κ°‘λ‹ˆλ‹€. β–  ν”Œλžœ 12:12, 14:10, 16:8λΆ€ν„° 18:6, 20:4, ν•˜λ£¨ ν•œ λΌκΉŒμ§€. 닡변에 맞좰 μΆ”μ²œν•΄ λ“œλ¦½λ‹ˆλ‹€. λ‚˜μ€‘μ— 바꿔도 λ©λ‹ˆλ‹€. Hollow Pro Β· λͺ¨λ“  ν”Œλžœ 잠금 ν•΄μ œ Β· 전체 기둝 보관 (λ¬΄λ£ŒλŠ” 졜근 7일) Β· 30일·90일 좔이와 체쀑 κ·Έλž˜ν”„ Β· CSV 내보내기 Β· κ΄‘κ³  μ—†μŒ ProλŠ” μžλ™ κ°±μ‹  κ΅¬λ…μž…λ‹ˆλ‹€. μ—°κ°„ ν”Œλžœμ€ 7일 무료둜 λ¨Όμ € μ¨λ΄…λ‹ˆλ‹€. ν•΄μ§€λŠ” μ–Έμ œλ“  App Store μ„€μ •μ—μ„œ ν•˜λ©΄ λ©λ‹ˆλ‹€. ν•œ 번 κ²°μ œν•˜λŠ” 평생 μ΄μš©κΆŒλ„ μžˆμŠ΅λ‹ˆλ‹€. 건강 κ΄€λ ¨ μ•ˆλ‚΄ 앱에 λ‚˜μ˜€λŠ” ꡬ간 μ„€λͺ…은 일반적인 정보이며 μ˜ν•™μ  쑰언이 μ•„λ‹™λ‹ˆλ‹€. μ‹œμ μ€ μ‚¬λžŒλ§ˆλ‹€ 차이가 ν½λ‹ˆλ‹€. μž„μ‹  μ€‘μ΄κ±°λ‚˜ 18μ„Έ 미만, 당뇨 λ“± 지병이 μžˆκ±°λ‚˜ 섭식μž₯μ•  이λ ₯이 μžˆλ‹€λ©΄ 단식 전에 μ˜μ‚¬μ™€ μƒμ˜ν•˜μ„Έμš”. μ΄μš©μ•½κ΄€ https://studiosolum.site/hollow/terms.html κ°œμΈμ •λ³΄μ²˜λ¦¬λ°©μΉ¨ https://studiosolum.site/hollow/privacy.html

Screenshots

Fasting Clock4 screens
Hollow4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Clock at none against Hollow's 2. Fasting Clock also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). On price and device support there is nothing between them.

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. Hollow sells 2 in-app purchases, starting at $1.99 per 7 days. Fasting Clock asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
Fasting Clock versus Hollow: the parameters behind the verdict, then further details
ParameterFasting ClockHollow
PriceFreeFree
Update frequencyEvery 2 daysβ€”
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.4
Further details β€” not scored
Size34 MB57 MB
Age rating4+12+
Developeranna kimStudio Solum

In-app purchases

None

Fasting Clock

No in-app purchases

2 purchases

Hollow

Subscriptions2
  • Hollow Pro Weekly$1.997 Days
  • Hollow Pro Annual7 Days trial$17.991 Year

Questions

Is Fasting Clock free?
Fasting Clock is free to download, with no in-app purchases.
Is Hollow free?
Hollow is free to download, with in-app purchases available.
Do Fasting Clock or Hollow have ads?
Hollow shows ads; Fasting Clock does not.

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