Comparison

Fasting Tracker 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 Tracker

Features
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Postivo is an intermittent fasting timer for people who want calm, steady progress - without pressure tactics, guilt, or punishment for ending a fast early. It's 7 p.m. and dinner ran late. Most trackers answer with a red screen and a broken streak. Here you shift your window and carry on - the streak was never the point. The hours are, and the trend you get to watch settle. FEATURES β†’A window that bends to your day 16:8, 18:6, or hours you set yourself - or a few questions about when you really eat, and the protocol comes back built around your life. β†’See what the hours are doing The stage timeline shows what your body typically moves toward - fat-burning, the onset of ketosis, autophagy - in sourced, hedged wording, because timings vary from person to person. β†’Progress you can look at Fasts, weight, and water land in one history, so weeks of effort become a line you can read instead of a feeling you have to trust. β†’Reminders that respect your evening A nudge when your window opens and closes, silent through the quiet hours you choose. Never enough to feel supervised. β†’Automatic iCloud backup Everything backs itself up, so a new phone never costs you your history. β†’The full picture, with Postivo Pro Apple Health sync, a live fasting ring on your Home Screen, advanced statistics, and a glucose and ketone log - what your fasting hours are actually doing for you. WHY POSTIVO β†’ Honest by default - no countdown pressure, no dark patterns, no shame when a fast ends early β†’ Nothing punishes you for stopping - end when you need to, log it, move on β†’ Your data stays yours - iCloud backup and Health export, nothing on a server of ours β†’ A window you manage, not endurance you test - fasting without the drama Own your window. Watch it work. Feel steady. SUBSCRIPTION INFORMATION Postivo Pro is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends; the renewal charge falls within those 24 hours. Manage or cancel in your Apple Account settings. Any unused trial period is forfeited on purchase. DISCLAIMER Postivo is a tracking tool, not a medical device, and nothing in it is medical advice. Stage information is educational and timings vary per person. Talk to a doctor before starting or changing a fasting routine - especially with a medical condition, medication, pregnancy, or a history of disordered eating. Terms of Use: https://prettytoolkit.com/terms Privacy Policy: https://prettytoolkit.com/postivo/privacy

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 Tracker4 screens
Hollow4 screens

Verdict

The call

The clearest difference is in-app purchases: Hollow at none against Fasting Tracker's 3. Hollow also leads on iOS requirement (16.4 vs 18.0). Fasting Tracker's advantage is ads (none vs shown). 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. Fasting Tracker sells 3 in-app purchases, starting at $7.99 per 3 months. Hollow asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
Fasting Tracker versus Hollow: the parameters behind the verdict, then further details
ParameterFasting TrackerHollow
PriceFreeFree
Update frequencyEvery 6 weeksβ€”
AdsNo β€” betterYes
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone
Requires iOS18.016.4 β€” better
Further details β€” not scored
Size12 MB57 MB
Age rating4+12+
DeveloperEL MEHDI ZAKRIStudio Solum

In-app purchases

3 purchases

Fasting Tracker

Subscriptions2
  • 3 Months$7.993 Months
  • 12 Months7 Days trial$19.991 Year
One-time1
  • Lifetime$49.99
None

Hollow

No in-app purchases

Questions

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

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