FireBelly vs BASLN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FireBelly
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FireBelly helps you track meals, symptoms, medications, and sleep to find your acid reflux triggers — all in one simple app with a friendly dragon companion. FEATURES: - Meal Logging – Quick-select 12 common trigger foods (coffee, chocolate, tomato, citrus, alcohol, spicy, carbonated, fried, dairy, onion/garlic, mint, late-night snack) plus custom entries - Symptom Tracking – Log 7 symptom types (heartburn, regurgitation, chest pain, chronic cough, throat irritation, bloating, nausea) with severity ratings - Medication Log – Track prescriptions and OTC medications with timestamps - Morning Check-in – Record nighttime reflux, sleep quality, and stress levels - Calendar View – Color-coded monthly view of all your entries - Dragon Companion – Your dragon reacts to symptom trends and celebrates your logging streaks PRO (one-time purchase): - Personal Trigger Profile – See which foods trigger your symptoms, with combo risk analysis - Timing Analysis – Discover how meal-to-bedtime gaps affect nighttime reflux - Medication Effectiveness – Compare symptom levels on medication days vs overall - Sleep & Reflux Correlation – Understand how sleep quality relates to your symptoms - Smart Alerts – Real-time warnings when you log risky foods or eat too close to bedtime - Weekly Digest – Automated summary of your week's patterns - Doctor Report – Professional PDF for your healthcare provider - CSV Export – Raw data for personal analysis - Ad-Free Experience – No banner or interstitial ads PRIVACY FIRST: All data stays on your device. No accounts, no cloud uploads. Your health data belongs to you. Made by MyQuietSpot Inc.
BASLN
Measure your cognitive performance with research-validated tests. Establish a personal baseline and track readiness zones. Correlate custom variables with your scores and receive evidence-ranked recovery protocols.
- 6 research-validated cognitive tests
- Personalized baseline establishment
- Readiness zones (Locked In, Good to Go, Off Day, Impaired)
- Custom variable correlation
- Evidence-ranked recovery protocols
- Trend analytics across cognitive domains
- Data portability via CSV export
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Measure your actual cognitive performance every morning. Not your heart rate. Not your sleep stages. Your brain. Whoop, OURA, and Apple Watch measure heart rate variability and guess how your brain is doing. Your wearable can tell you your nervous system is stressed. It can't tell you your reaction time is 80ms slower than yesterday. BASLN measures the thing itself. 6 RESEARCH-VALIDATED TESTS. 5 MINUTES. - Psychomotor Vigilance (PVT-B): the gold standard fatigue measure, used on the International Space Station - Spatial 2-Back: canonical spatial working memory test, validated across decades of cognitive neuroimaging research - Digit Symbol Substitution (DSST): the single best predictor of complex operational performance - Color-Word Stroop: executive function and inhibitory control - Arithmetic Verification: processing speed under cognitive load - Trail Making B: cognitive flexibility and task switching YOUR PERSONAL BASELINE Your first 5 sessions establish your personal baseline. Every session after that is scored against your own norm. 0-100 scale. No comparison to population averages. Just you vs you. READINESS ZONES 90-100: Locked In 75-89: Good to Go 60-74: Off Day (recovery protocols activate) 0-59: Impaired CUSTOM CORRELATIONS Track what you actually care about. Define your own variables (creatine, cold plunge minutes, supplement stacks) and see how they correlate with your readiness score over time. Binary, continuous, or categorical. RECOVERY PROTOCOLS Score below 75? Get evidence-ranked recovery recommendations: cold exposure, bright light therapy, strategic caffeine timing, high-intensity exercise, nap protocols. Each ranked by time-to-effect and evidence quality. ANALYTICS Track trends across all 6 cognitive domains. See how sleep, caffeine, exercise, and your own custom variables correlate with your scores. Compare your current performance against your original baseline to catch long-term drift. DATA PORTABILITY Export your full history as CSV anytime. Import a BASLN CSV on another device to restore after a reinstall. Every export roundtrips cleanly, no data loss, no lock-in. PRIVACY BASLN collects nothing. Zero. No accounts, no analytics SDKs, no tracking pixels, no telemetry. BASLN has no servers of its own. Your cognitive history syncs across your Apple devices through your private iCloud, end-to-end encrypted. Neither Apple nor BASLN can read it. You can disable iCloud Sync in Settings if you prefer data to live only on the local device. NO WEARABLE. NO ACCOUNT. NO TRACKING. Free to try (10 full sessions). Pro unlocks unlimited sessions, full analytics, and data export. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://basln.app/privacy
Screenshots
Verdict
The clearest difference is ads: BASLN at none against FireBelly's shown. BASLN also leads on update cadence (weekly vs every 6 weeks). FireBelly's advantage is iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. FireBelly sells 1 one-off in-app purchase and BASLN sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
FireBelly ships an update every 6 weeks, BASLN weekly. The most recent releases landed on September 25, 2026 and October 11, 2026 respectively.
| Parameter | FireBelly | BASLN |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 64 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | MyQuietSpot Inc. | John Zic |
In-app purchases
FireBelly
- FireBelly Pro$14.99
BASLN
- Basln$4.991 Month
- Basln$29.991 Year









