Comparison

Personal Calendar vs Protocols

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

Head to head
About

Personal Calendar

Features
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Personal Calendar is a calm, beautifully themed daily companion. It unifies your calendar, assistant, notes, habits, to-dos, weather, and market rates into a single glanceable home screen — then gets out of your way. THREE VISUAL DIRECTIONS • Morning Light — clean, minimal, indigo. A crisp everyday look. • Almanac — warm editorial paper with cream, ink, and amber. • Midnight — dark glass with electric lilac. Beautiful at night. Switch themes any time from Settings. Every surface, icon, and category color is routed through the active theme — no bleed, no compromise. CALENDAR THAT ACTUALLY WORKS • Six views — Day, Week, Month, Agenda, Kanban, Timeline — all from one cursor. • Overlapping events render side-by-side as parallel columns, like Apple Calendar. • Week auto-scrolls to today. Month cells show category-colored dots; tap a day to jump to Day view. • Customizable week start — Monday or Sunday. NATURAL-LANGUAGE QUICK ADD Type “Dentist tomorrow at 3pm for 1h” — we parse the title, category, date, and duration. No forms to fill. ASSISTANT CHAT Ask for events, todos, and notes in plain English. The assistant adds them straight to your calendar, with a subtle thinking indicator while it works. CUSTOMIZABLE HOME • Weather hero with conditions, highs/lows, humidity, and a live feels-like. • Today / habits / todos counters. • USD, EUR, and gram gold in Turkish Lira — refreshed automatically. • Up next, habit chips, open to-dos, and a gorgeous moon phase / sunrise / sunset card. Use the pencil button in the header to toggle sections on or off. WEATHER YOU CAN TRUST Live Open-Meteo data in °C or °F, hourly for the next 24 hours and daily for 10 days. Real sun, moon, cloud, rain, snow, thunder, fog, and cloud-moon glyphs — no more sun icons on rainy days. PRIVATE CLOUD SYNC Your data is backed up to your private cloud in the background. Works fully offline too — nothing is ever required to be online. HABIT STREAKS, NOTES, WEATHER LOCATIONS Build small daily habits with streak counters. Keep lightweight notes with pin and search. Watch the weather in every city you care about. NO ADS, NO TRACKING, NO ACCOUNT REQUIRED.

About

Protocols

Features
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Turn science-backed health research into a daily routine you can actually follow. Protocols gives you ready-to-use protocols for sleep, circadian rhythm, light, movement, nutrition, focus, recovery and longevity — organized into one timeline on your iPhone. No more taking notes from 3-hour podcasts. No more scattered health advice. Pick a protocol, build your day, and track what you actually do. EVERY ACTION HAS A SOURCE Protocols is built around evidence, not anonymous health claims. Open any action, tip or blueprint to see its SOURCES & EVIDENCE section, including: • Publisher and publication year • Evidence tier • Original research or institutional source • Direct link to the source The library currently includes 96 open-access sources, including peer-reviewed studies and public health resources. Examples include research on caffeine and sleep, creatine, vitamin D, sleep hygiene, physical activity and circadian rhythm. 198 SCIENCE-BACKED ACTIONS Build your routine from practical actions covering: • Sleep & recovery • Circadian rhythm • Morning light • Exercise & movement • Nutrition • Focus & cognitive performance • Cold exposure • Heat & sauna • Breathing • Longevity BUILD YOUR DAILY PROTOCOL Create a timeline that fits your actual day. • Drag and reorder actions • Set times and reminders • Combine protocols into one routine • Add custom actions • See the friction and effort of your day • Check off actions as you complete them LEARN FROM WELL-KNOWN PROTOCOLS Explore routines inspired by public work and published practices associated with: • Andrew Huberman • Peter Attia • Bryan Johnson • Matthew Walker • Wim Hof • Tim Ferriss • David Goggins • Naval Ravikant • Joe Dispenza Each blueprint is presented as an organized routine rather than a replacement for professional medical advice. TRACK WHAT ACTUALLY WORKS Log your mood and energy alongside your daily actions. Over time, Protocols helps you see patterns between your routines and how you feel. VOICE & TEXT DIARY Capture an observation, idea or result in seconds. Keep your health experiments in one place instead of scattered across notes and apps. PRIVATE BY DEFAULT Protocols is local-first. • No account required • Your routine and history stay on your device • Offline-first • No cloud tracking FREE Explore the library with: • 50 actions • 25 tips • 2 blueprints • 7 days of analytics • Full source citations and bibliography PRO Unlock: • 198 actions • 100 tips • 32 blueprints • Custom actions • Widgets • Calendar sync • Mood & diary • 91-day analytics WHO IT'S FOR • People interested in evidence-based health • Biohackers and health optimizers • Athletes focused on recovery • Knowledge workers optimizing sleep and focus • Anyone interested in longevity and healthspan EDUCATIONAL, NOT MEDICAL ADVICE Protocols is an educational directory and habit-tracking tool. It does not provide medical diagnosis or treatment. Consult a qualified healthcare professional before starting fasting, cold exposure, sauna, intense exercise or other significant changes to your health routine. Privacy: https://www.protocols.monster/legal/privacy Terms: https://www.protocols.monster/legal/terms Sources: https://www.protocols.monster/legal/sources Support: https://www.protocols.monster/contact

Screenshots

Personal Calendar4 screens
Protocols4 screens

Verdict

The call

The clearest difference is in-app purchases: Personal Calendar at none against Protocols's 3. Personal Calendar also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence 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. Protocols sells 3 in-app purchases, starting at $4.99 per month. Personal Calendar asks for nothing beyond the download.

UpkeepUpdate frequency

Personal Calendar ships an update every 2 days, Protocols every 4 days. The most recent releases landed on October 3, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 2 level
Personal Calendar versus Protocols: the parameters behind the verdict, then further details
ParameterPersonal CalendarProtocols
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 4 days
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size27 MB12 MB
Age rating4+4+
DeveloperYakup KeskinZordon Intelligence

In-app purchases

None

Personal Calendar

No in-app purchases

3 purchases

Protocols

Subscriptions2
  • PRO monthly7 Days trial$4.991 Month
  • PRO Annual (BEST VALUE)7 Days trial$29.991 Year
One-time1
  • PRO Lifetime$59.99

Questions

Is Personal Calendar free?
Personal Calendar is free to download, with no in-app purchases.
Is Protocols free?
Protocols is free to download, with in-app purchases available.
Do Personal Calendar or Protocols have ads?
Protocols shows ads; Personal Calendar does not.
Which is updated more often, Personal Calendar or Protocols?
Personal Calendar ships an update every 2 days, and Protocols every 4 days. Most recently, Personal Calendar was updated on October 3, 2026 and Protocols on October 26, 2026.

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