LoyalAI vs BloodLevel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LoyalAI
This app helps couples understand and improve their relationship by tracking daily feelings and providing AI-driven insights. It offers a visual dashboard and personalized tips to foster deeper connection and communication.
- Daily score slider for emotional awareness
- Smart relationship score analytics
- AI relationship companion for personalized insights
- Home screen widget for quick visibility
- Identify and translate hidden feelings
- Actionable tips for connection improvement
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Experience the ultimate relationship tracker! Reflect deeply, express honestly, and communicate your true feelings each day. Most couples struggle with unspoken feelings, small doubts, shifts in attraction, or moments of disconnection that go unnoticed until they become big problems. LoyalAI identifies and translates hidden feelings into clear insights, gently surfacing what each person is really experiencing. It doesn’t take sides, it helps couples talk, understand each other better, and turn emotional silence into stronger connection. KEY FEATURES: • DAILY SCORE SLIDER: Tracking your love each day helps you stay emotionally aware, connected, and honest, both with yourself and your partner. By taking a moment each day to reflect on how attracted, connected, and loyal you feel towards your partner, you begin to notice patterns that might otherwise go unspoken. Small shifts become visible before they turn into big problems, and positive trends become opportunities to grow even closer. It’s not about judgment, it’s about insight. Daily tracking builds emotional mindfulness, improves communication, and helps you show up more intentionally in your relationship. In a world where love can get lost in the noise, this simple habit keeps your connection clear and grounded. • SMART RELATIONSHIP SCORE (100–1000) The analytics dashboard and relationship score in LoyalAI give you a powerful, visual way to understand your emotional journey over time. Instead of relying on vague feelings or scattered memories, you get clear data points of your connection, all reflected in a smart Relationship Score from 100 to 1,000. This score acts like a status update for your relationship, helping you recognize patterns, celebrate growth, or catch emotional distance early. The dashboard transforms raw feelings into meaningful insight, empowering you to make more informed decisions, communicate more clearly, and track real progress in how your relationship evolves. • AI RELATIONSHIP COMPANION Incorporating AI transforms the app from a simple relationship tracker into a truly intelligent relationship companion. The AI doesn’t just store your daily check-ins, it learns from your emotional patterns over time, offering personalized insights, gentle alerts when something feels off, and actionable tips to improve your connection. Whether you’re navigating uncertainty, feeling distant, or trying to strengthen your bond, the AI acts like a supportive friend helping you understand what’s happening beneath the surface. It brings emotional clarity, encourages reflection, and empowers you to make more intentional relationship decisions, all without judgment, just insight. • HOME SCREEN WIDGET Adding the LoyalAI widget to your home screen keeps your relationship health front and center, literally. With just a glance, you’ll see your current Relationship Score, a daily bar graph of your emotional trends, and your streak of consecutive check-ins. This constant visibility helps you stay emotionally present and intentional, reminding you to tune in before tension builds or connection fades. Whether you’re celebrating a strong streak or noticing a dip in your scores, the widget acts as your relationship pulse, always there, always tracking what truly matters. It’s not just a tool, it’s a daily habit for healthier love. Start your tracking your relationship today! Please note that LoyalAI and the materials and information contained herein are not intended to, and do not constitute medical, psychological, or mental health advice, or diagnosis, and may not be used for such purposes. You should always consult with a qualified physician or mental health professional about your specific circumstances. LoyalAI Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BloodLevel
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Espresso at four, bed at eleven — how much caffeine is still working by then? BloodLevel answers exactly that. Log coffee, tea or an energy drink in two taps, and a pharmacokinetic model computes live how much caffeine is active in your body right now, when it peaks, when you’re sleep-ready — and how much coffee still fits today. YOUR CURVE, LIVE • Active caffeine in mg — not what you drank, but what is still working right now • History and forecast in one curve: scrub across it to read the value at any moment, hours ahead • Peak with time of day, daily total against the 400 mg guideline SLEEP-READY — TO THE MINUTE • Sleep threshold: you count as sleep-ready once your active caffeine drops below it • Sleep budget: how much caffeine still fits right now without keeping you up at midnight? • Last coffee: the time until which an espresso still fits into tonight • Optional notifications when you’re sleep-ready — and a “last call for coffee” 15 minutes before the cutoff LOGGED IN TWO TAPS • 13 drinks with real caffeine figures: Espresso, Double Espresso, Cappuccino, Latte, Filter Coffee, Coffee to go, Cold Brew, Black Tea, Green Tea, Matcha, Energy Drink, Cola, Decaf • Touch and hold to adjust the amount, save your own drinks • Quick log from the home screen, backdating with a time chip, undo included COUNTDOWN ON YOUR LOCK SCREEN A Live Activity counts down to sleep-ready — on the Lock Screen and in the Dynamic Island. Plus widgets with your current level and a mini curve for Home and Lock Screen. YOUR METABOLISM The half-life is adjustable: about 5 hours on average, shorter for smokers, much longer during pregnancy or on the pill. The app computes with your value. STATISTICS THAT UNDERSTAND CAFFEINE Sleep check (how many nights over the threshold), days within the guideline, average first and last cup, caffeine-free days, a 12-week heatmap, weekday and time-of-day profiles, most-logged drinks. APPLE HEALTH If you like, every drink is written to Apple Health as caffeine. And “Coffee & body” lays your model over your real data: how long, how interrupted and how deep did you sleep on nights with more vs. less caffeine at sleep onset? How do resting heart rate and HRV respond? The app compares honestly — associations only, and only with enough nights — and suggests a personal sleep threshold from your own data. PRIVATE BY DESIGN No account, no cloud, no trackers, no ads. Everything stays on your iPhone — including anything read from Health. The CSV export is yours. IMPORTANT BloodLevel computes model estimates based on population averages and the caffeine content of typical drinks. The app measures nothing in your body, is not a medical device, and is no substitute for medical advice.
Screenshots
Verdict
The clearest difference is in-app purchases: BloodLevel at none against LoyalAI's 3. LoyalAI's advantage is update cadence (weekly vs every 6 months) and iOS requirement (16.6 vs 26.0). On price, ads 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
Both are free to download. LoyalAI sells 3 one-off in-app purchases. BloodLevel asks for nothing beyond the download.
LoyalAI ships an update weekly, BloodLevel every 6 months. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.
| Parameter | LoyalAI | BloodLevel |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (13 ratings) — better | — |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | Weekly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 49 MB | 21 MB |
| Age rating | 12+ | 17+ |
| Developer | David Parker | JANNIS MARTIN KLAUS |
In-app purchases
LoyalAI
- 2.5K Premium AI Tokens$4.99
- 10K Premium AI Tokens$9.99
- 100,000 tokens$59.99
BloodLevel
No in-app purchases









