Comparison

Bio vs Calmplot

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

Head to head
About

Bio

Features
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Still wired at midnight? Bio-Rhythm is the science-based caffeine tracker built for people who refuse to trade tomorrow's sleep for today's coffee. Every coffee, tea, or energy drink you log is plotted on a real-time decay curve based on your personal metabolism. You'll see exactly how much caffeine is still in your system — and exactly when it will be safe to sleep. — PROTECT YOUR SLEEP — Get a precise countdown to your safe-sleep time. No more guessing whether that 3pm latte will haunt you at 1am. — TRACK CAFFEINE IN REAL TIME — Watch your caffeine level rise and fall on a beautiful decay chart, powered by the same exponential half-life formula used by sleep scientists. — SCORE YOUR SLEEP READINESS — Get a daily Bio-Rhythm Score from 0–100. Build streaks of "perfect nights" and see your 7-day trend at a glance. — LOG ANY DRINK IN SECONDS — 27+ preloaded beverages — espresso, americano, matcha, Red Bull, Monster, 5-Hour Energy, Coke and more. Or add your own custom drink. — HIT YOUR FOCUS ZONE (Premium) — Smart dosing recommendations tell you exactly when to drink your next coffee for peak focus — and when to stop so your sleep is protected. — BUILT FOR BIO-HACKERS — Premium unlocks custom half-life (1–12 hours) and sleep sensitivity threshold (0–100mg) so the math matches your body, not an average. — PRIVATE BY DESIGN — All your data stays on your device. No accounts, no cloud, no tracking. Stop sabotaging your sleep. Start tracking with Bio-Rhythm. — PREMIUM — Bio-Rhythm Premium unlocks: • Custom caffeine half-life • Custom sleep threshold • Focus Flow dosing recommendations • Ad-free experience Bio-Rhythm is free to download and use. To unlock the full "Bio-Hacker Engine," we offer three auto-renewing subscription options: Weekly Espresso: $1.99 per week Monthly Steady: $5.99 per month Yearly Bio-Hacker: $29.99 per year (Best Value) Privacy : https://cofeetracker.xn--hn-vrab.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Calmplot

Quickly capture thoughts via voice or text and receive AI-powered reflections. Visualize your life's balance as a growing garden and identify patterns over time. Offers gentle prompts for small actions to foster progress.

Highlights
  • 30-second voice and text journaling
  • AI reflections
  • Mood tracking
  • Life balance garden view
  • Weekly reviews and pattern summaries
  • Memory recall
  • Full data export
Features
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Most journaling apps forget everything the moment you close them. Calmplot remembers — connecting what you write today to what you felt weeks ago, so the patterns in your life finally become visible. A JOURNAL THAT REMEMBERS Calmplot keeps your entries connected instead of stranded. Mention someone often and it links the entries they appear in. Over weeks it surfaces the themes you keep returning to, and how a relationship, a decision, or a mood has shifted over time — the connections that are hard to see from inside them. THOUGHTFUL AI REFLECTIONS Calmplot turns each entry into a simple reflection or follow-up prompt to help you notice what stands out and keep writing. It is designed for journaling support, not advice or treatment. VOICE OR TYPE IN 30 SECONDS Skip the blank page. Speak or write a quick entry whenever something feels worth capturing, whether that's during your commute, before bed, or between meetings. PATTERNS, MEMORIES, AND REVIEWS Over time, Calmplot helps you spot recurring themes, revisit meaningful moments, and review wins, challenges, and changes across your weeks. YOUR EMOTIONAL GARDEN See your life as a growing garden across six areas: Work, Health, Friends, Family, Growth, and Fun. No guilt-driven streaks. Just gentle, visible progress. PRIVATE BY DESIGN Your entries are encrypted before storage. AI features only run with your permission. We request zero-retention processing and do not allow public-model training. TINY ACTIONS When it fits, Calmplot suggests one small next step based on what you've been reflecting on, so insight can turn into follow-through. FEATURES • Long-term memory across your entries • Connections between the people and themes you write about • AI reflections after each entry • Go Deeper prompts while you write • 30-second voice and text journaling • Mood tracking and emotion tags • Garden view of life balance • Weekly reviews and pattern summaries • Full export anytime Start with one entry — your garden is waiting. Calmplot offers a free plan plus optional paid upgrades for additional AI features, voice time, and deeper reviews. Pricing is shown in the App Store and may vary by region. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in Account Settings after purchase. Calmplot is a journaling and reflection app. It does not provide medical advice, diagnosis, or treatment. If you are in crisis, contact emergency services or a crisis helpline. Privacy Policy: https://calmplot.com/privacy Terms of Use: https://calmplot.com/terms

Screenshots

Bio3 screens
Calmplot4 screens

Verdict

The call

The clearest difference is update cadence: Calmplot at weekly against Bio's every 2 months. On price, ads, 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. Bio sells 3 in-app purchases, starting at $1.99 per 7 days and Calmplot sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Bio ships an update every 2 months, Calmplot weekly. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 8 level
Bio versus Calmplot: the parameters behind the verdict, then further details
ParameterBioCalmplot
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.1 — better15.6
Further details — not scored
Size42 MB61 MB
Age rating4+12+
DeveloperThomas FerrerChad Epstein

In-app purchases

3 purchases

Bio

Subscriptions3
  • weekly subscrition$1.997 Days
  • monthly subscrition$5.991 Month
  • yearly subscription$29.991 Year
3 purchases

Calmplot

Subscriptions2
  • Calmplot Premium Monthly$9.991 Month
  • Calmplot Premium Yearly1 Month trial$49.991 Year
One-time1
  • Calmplot Premium Lifetime$99.99

Questions

Is Bio free?
Bio is free to download, with in-app purchases available.
Is Calmplot free?
Calmplot is free to download, with in-app purchases available.
Do Bio or Calmplot have ads?
Neither Bio nor Calmplot shows ads.
Which is updated more often, Bio or Calmplot?
Bio ships an update every 2 months, and Calmplot weekly. Most recently, Bio was updated on October 13, 2026 and Calmplot on September 30, 2026.

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