Comparison

Spit vs Heart Plot

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

Head to head
About

Spit

Features
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Build a daily affirmation habit with Spit. Spit brings 1,800+ affirmations, motivational quotes, widgets, reminders, and premium share cards into one calm, private routine. WHY SPIT - Daily affirmations for confidence, self love, discipline, calm, success, fitness, healing, stoic wisdom, and more - Personalized feed based on goals and mood - Home Screen and Lock Screen widgets with fresh affirmations - Streaks, goals, and reminders to keep the habit visible - 10 premium visual themes and animated backgrounds - Custom affirmations and share-ready quote cards - Works offline with no account required FOR DAILY MOTIVATION Use Spit for morning motivation, positive affirmations, self love, manifestation, gratitude, mindset, confidence, or a quick reset during the day. PRIVATE BY DESIGN No account required. Affirmations and preferences stay on device. No third-party advertising tracking. Start with a 3-day free trial and make the right words part of the day. Privacy Policy: https://spit-app.com/en/privacy Terms of Use (EULA): https://spit-app.com/en/terms

About

Heart Plot

Features
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IMPORTANT: This app REQUIRES a Polar H10 heart rate sensor. Heart Plot is a specialized tool designed specifically for use with the Polar H10 chest strap to visualize your heart’s rhythm in real-time using advanced Lorenz (Poincaré) plotting. By measuring the precise RR-intervals (the time between two heartbeats), Heart Plot maps your heart's behavior onto an X-Y axis. This visualization reveals the "geometry" of your heart rate, allowing you to see patterns that a simple pulse reading would never show. SEE YOUR HEART RHYTHM IN REAL-TIME - Whether you are a "data geek," a fitness enthusiast, or someone monitoring for heart irregularities, Heart Plot provides a live, growing window into your cardiac health. - Detect Irregularities: Easily spot premature contractions, or skipped beats as they happen. The visual patterns created on the Lorenz plot can help identify specific types of arrhythmia. - Capture Episodes: Perfect for users trying to "catch" an intermittent heart event to share with their healthcare provider. - Fitness & HRV: Monitor your Heart Rate Variability (HRV) visually during rest or training sessions. - Built for Endurance: Heart Plot is optimized for long-term monitoring. Whether it’s a quick check, a fitness session, or a 24-hour to 48-hour continuous measurement, the app handles long data sets with ease. KEY FEATURES: - Live Lorenz Plotting: Watch your heart’s "signature" form as the plot grows with every beat. - Stay-Awake Mode: A dedicated toggle to keep your screen on for constant monitoring during workouts or clinical observation. - High-Resolution Data: Captures every RR-interval directly from the Polar H10. - Data Export: Done with your measurement? Download the raw data as a CSV file (including all RR-intervals and timestamps) via the standard Apple Share Sheet for further analysis in Excel, Python, or R. PRIVACY FIRST Your health data is yours alone. Heart Plot does not store your data on any cloud servers. All measurements remain locally on your iPhone until you choose to export them or take a screenshot. MEDICAL DISCLAIMER: Heart Plot is a data visualization tool and is not intended to diagnose, treat, or prevent any medical condition. Please consult with a medical professional to interpret the data. The patterns revealed in the Lorenz plot are for informational and educational purposes. Requirements: - Polar H10 Heart Rate Sensor (Chest Strap) - Bluetooth-enabled iPhone

Screenshots

Spit4 screens
Heart Plot4 screens

Verdict

The call

The clearest difference is update cadence: Heart Plot at every 2 weeks against Spit's monthly. Spit's advantage is iOS requirement (15.1 vs 26.2). 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. Spit sells 3 in-app purchases, starting at $3.99 per 7 days and Heart Plot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Spit ships an update monthly, Heart Plot every 2 weeks. The most recent releases landed on September 9, 2026 and August 25, 2026 respectively.

Scorecard2 real differences · 4 level
Spit versus Heart Plot: the parameters behind the verdict, then further details
ParameterSpitHeart Plot
PriceFreeFree
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better26.2
Further details — not scored
Size79 MB3 MB
Age rating9+4+
DeveloperAmine SaidnaOle Luhrs

In-app purchases

3 purchases

Spit

Subscriptions3
  • Affirm Pro – Weekly3 Days trial$3.997 Days
  • Affirm Pro – Monthly3 Days trial$8.991 Month
  • Affirm Pro – Annual3 Days trial$44.991 Year
1 purchases

Heart Plot

One-time1
  • Heart Plot Premium$1.99

Questions

Is Spit free?
Spit is free to download, with in-app purchases available.
Is Heart Plot free?
Heart Plot is free to download, with in-app purchases available.
Do Spit or Heart Plot have ads?
Neither Spit nor Heart Plot shows ads.
Which is updated more often, Spit or Heart Plot?
Spit ships an update monthly, and Heart Plot every 2 weeks. Most recently, Spit was updated on September 9, 2026 and Heart Plot on August 25, 2026.

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