Comparison

SIMBA GI Platform vs Cephalo

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

Head to head
About

SIMBA GI Platform

Features
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The SIMBA GI Platform is the official companion app for participants enrolled in the SIMBA (Swallowable Intestinal Microbiome Biosensor Assessment) study. This app guides you through every step of your study participation β€” from scheduling your capsule ingestion to recording your food diary and tracking capsule retrieval. Features: - Step-by-step ingestion scheduling and task guidance - Daily food diary to log what you eat during the study period - Questionnaires to capture your health and symptom data - Capsule retrieval tracking and shipping instructions - Medication guidance to help you prepare for ingestion - Help centre with FAQs and instructional resources - Contact your study coordinator directly from the app Note: This app is exclusively for invited SIMBA study participants. A valid kit ID is required to log in.

About

Cephalo

Features
Read full description

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.

Screenshots

SIMBA GI Platform4 screens
Cephalo4 screens

Verdict

The call

The clearest difference is in-app purchases: SIMBA GI Platform at none against Cephalo's 2. SIMBA GI Platform also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and ads there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Cephalo sells 2 in-app purchases, starting at $2.99 per month. SIMBA GI Platform asks for nothing beyond the download.

UpkeepUpdate frequency

SIMBA GI Platform ships an update every 3 weeks, Cephalo every 2 weeks. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.

Scorecard3 real differences Β· 3 level
SIMBA GI Platform versus Cephalo: the parameters behind the verdict, then further details
ParameterSIMBA GI PlatformCephalo
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better17.6
Further details β€” not scored
Size47 MB13 MB
Age rating4+12+
DeveloperNimble Science Ltd.Iterica B.V.

In-app purchases

None

SIMBA GI Platform

No in-app purchases

2 purchases

Cephalo

Subscriptions2
  • Cephalo Plus Monthly$2.991 Month
  • Cephalo Plus Yearly7 Days trial$24.991 Year

Questions

Is SIMBA GI Platform free?
SIMBA GI Platform is free to download, with no in-app purchases.
Is Cephalo free?
Cephalo is free to download, with in-app purchases available.
Do SIMBA GI Platform or Cephalo have ads?
Neither SIMBA GI Platform nor Cephalo shows ads.
Which is updated more often, SIMBA GI Platform or Cephalo?
SIMBA GI Platform ships an update every 3 weeks, and Cephalo every 2 weeks. Most recently, SIMBA GI Platform was updated on October 10, 2026 and Cephalo on September 29, 2026.

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