Comparison

BDA Peng vs QuietTap

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

Head to head
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.

About

QuietTap

Features
Read full description

QuietTap is a haptic metronome for your wrist. It delivers a steady, rhythmic pulse at a pace you choose — giving your nervous system something constant to hold onto when everything else feels uncertain. A steady haptic pulse gives your body something to lock onto, naturally slowing your breath and heart rate. Unlike audio tools, QuietTap works silently through touch — on your wrist or in your hand, wherever you are. Quick start presets for Calm, Focus, Energise and Sleep let you start with one tap. After your session, see how your heart rate changed over time. No sound. No notifications. Just rhythm.

Screenshots

BDA Peng3 screens
QuietTap3 screens

Verdict

The call

The clearest difference is in-app purchases: BDA Peng at none against QuietTap's 1. QuietTap's advantage is update cadence (daily 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. QuietTap sells 1 one-off in-app purchase. BDA Peng asks for nothing beyond the download.

UpkeepUpdate frequency

BDA Peng ships an update every 5 months, QuietTap daily. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 4 level
BDA Peng versus QuietTap: the parameters behind the verdict, then further details
ParameterBDA PengQuietTap
PriceFreeFree
Update frequencyEvery 5 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.0 — better17.6
Further details — not scored
Size27 MB5 MB
Age rating17+12+
DeveloperThe British Dietetic AssociationAndy Blair

In-app purchases

None

BDA Peng

No in-app purchases

1 purchases

QuietTap

One-time1
  • Unlock QuietTap$0.99

Questions

Is BDA Peng free?
BDA Peng is free to download, with no in-app purchases.
Is QuietTap free?
QuietTap is free to download, with in-app purchases available.
Do BDA Peng or QuietTap have ads?
Neither BDA Peng nor QuietTap shows ads.
Which is updated more often, BDA Peng or QuietTap?
BDA Peng ships an update every 5 months, and QuietTap daily. Most recently, BDA Peng was updated on October 10, 2026 and QuietTap on October 24, 2026.

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