Comparison

Cephalo vs BDA Peng

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

Head to head
About

Cephalo

Features
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Understand your headaches and migraines without giving up your privacy. Cephalo is a headache and migraine diary that keeps every entry on your iPhone, so you can log an attack in seconds and see what your own patterns are telling you. Track the moments that matter: when a headache starts and ends, how intense it feels, symptoms like aura, nausea, and sensitivity to light or sound, the medication you took, and the possible triggers around you. YOUR DATA IS ALWAYS YOURS - FOR FREE Cephalo's free tier never caps your history. Record as many entries as you like, keep your full timeline, and back up everything to a JSON file you control, anytime. Your diary is yours to own. CEPHALO PLUS - SEE THE PATTERNS Upgrade to Plus when you want help making sense of it all: - Doctor-ready PDF report that summarizes your history in clear counts to bring to your appointment - Pattern analysis that highlights what often appears before a difficult day - Highlights of the conditions that have shown up before your harder days in the past - Pattern and insight summaries across weeks and months - Weather and barometric-pressure correlation views - MIDAS disability trends over time - CSV export for your own spreadsheets Plus turns your own history into understanding. It helps you spot patterns and prepare for your doctor - it never diagnoses or treats. JUST NEED A REPORT FOR ONE VISIT? No subscription required - unlock the doctor-ready PDF report for 14 days with a single purchase, and generate as many reports as you need in that window. PRIVACY BY DESIGN - Local-first: your diary lives on your device - Optional iCloud sync that you control - Opt-in, on-device private federated learning, so insights improve without your raw data ever leaving your phone - No ads, no data brokers, no selling your health information MEDICAL DISCLAIMER Cephalo is a tracking and record-keeping tool. It does not provide medical advice and is not intended to diagnose, treat, cure, or prevent any condition. Always consult a qualified healthcare professional about your health. SUBSCRIPTION TERMS Cephalo Plus is available as a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Price and currency depend on your region. The yearly subscription includes a 7-day free trial for new subscribers; you are not charged during the trial, and it converts to a paid yearly subscription unless you cancel at least 24 hours before it ends. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and your Apple ID is charged for renewal within 24 hours of the period ending. Manage or cancel anytime in your App Store account settings. The lifetime option is a single purchase with no recurring charge. A one-time 14-day report unlock is also available as a separate purchase that enables doctor-ready PDF report generation for 14 days, with no recurring charge. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Track it. Understand it. Keep it private.

About

BDA Peng

Features
Read full description

A comprehensive evidence-based clinical guide to Parenteral Enteral & Oral Nutritional Support. This clinical guide provides evidence- based data to assist healthcare practitioners in assessing, planning, treating and monitoring adults who require nutritional support. This App is the first e version based on the current 5th edition of the Pocket guide to clinical nutrition (Todorovic V & Mafrici B, 2018.) References cited in the App are web linked. Summarised below are the core sections of the PENG Pocket Guide to Clinical Nutrition, 2018: Introduction 1. Identifying 2. Assessment 3. Adult Requirements 4. Paediatric Requirements 5. Access Routes 6. Monitoring and Reference Values 7. Nutritional Values 8. Parenteral Nutrition 9. Acid-Base Balance 10. Diabetes 11. Microbial Control 12. Refeeding 13. ‘Drugs and Nutrition Support’ 14. ‘Kidney Disease’ 15. Liver 16. Critical Care 17. COPD 18. Bariatric 19. Pancreatic DISCLAIMER: Every attempt has been made to ensure this publication is accurate and up to date. Neither the Parenteral and Enteral Nutrition Group of the British Dietetic Association, nor the British Dietetic Association, nor the editors, nor the authors accept any liability to any healthcare professional, healthcare provider, patient or other person using this publication. These guidelines do not replace individual clinical judgement, or clinical decision making. Copyright for the content of this publication is owned by the British Dietetic Association.

Screenshots

Cephalo4 screens
BDA Peng3 screens

Verdict

The call

The clearest difference is in-app purchases: BDA Peng at none against Cephalo's 2. Cephalo's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads, device support and iOS requirement 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. Cephalo sells 2 in-app purchases, starting at $2.99 per month. BDA Peng asks for nothing beyond the download.

UpkeepUpdate frequency

Cephalo ships an update every 2 weeks, BDA Peng every 5 months. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 4 level
Cephalo versus BDA Peng: the parameters behind the verdict, then further details
ParameterCephaloBDA Peng
PriceFreeFree
Update frequencyEvery 2 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.616.0 — better
Further details — not scored
Size13 MB27 MB
Age rating12+17+
DeveloperIterica B.V.The British Dietetic Association

In-app purchases

2 purchases

Cephalo

Subscriptions2
  • Cephalo Plus Monthly$2.991 Month
  • Cephalo Plus Yearly7 Days trial$24.991 Year
None

BDA Peng

No in-app purchases

Questions

Is Cephalo free?
Cephalo is free to download, with in-app purchases available.
Is BDA Peng free?
BDA Peng is free to download, with no in-app purchases.
Do Cephalo or BDA Peng have ads?
Neither Cephalo nor BDA Peng shows ads.
Which is updated more often, Cephalo or BDA Peng?
Cephalo ships an update every 2 weeks, and BDA Peng every 5 months. Most recently, Cephalo was updated on September 29, 2026 and BDA Peng on October 10, 2026.

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