Comparison

Cofactor vs BLOOM Period Tracker

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

Head to head
About

Cofactor

Improve your well-being by monitoring the specific nutrients in your meals, going beyond simple calorie counting. Receive a personalized nutrition plan and use AI to instantly analyze food from photos, understanding its impact on your health.

Highlights
  • Personalized wellness nutrition plan
  • AI-powered instant food analysis via photo
  • Track macro and micronutrients
  • Monitor impact on physical, hormonal, and gut health
  • Customized plan based on wellness questions
Features
Read full description

Optimize your health by tracking the actual nutrients in your food, not just the calories. PERSONALIZED NUTRITION PLAN Get a custom nutrition plan centered around health and wellness tailored to your goals and your body's needs. INSTANT ANALYSIS Take a picture of your food, let AI analyze the nutrients, and see how the food you eat affects your health. TRACK WHAT MATTERS Tracking just the calories you eat is outdated. Cofactor helps you track the key nutrients you need to support your physical, hormonal, and immune health. HOW TO USE EAT WELL: 1. Answer wellness questions to create a plan for you 2. Take a picture of your food 3. Track your nutrient analysis NOTE: Cofactor does not offer medical advice. Please conduct your own research and consult with a medical professional before following a wellness plan. We offer a free trial for new users. After the trial has ended, a subscription is required to use Cofactor. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy policy: https://michaelrbautista.github.io/appstoreprivacy/

About

BLOOM Period Tracker

Features
Read full description

Bloom is a beautifully simple period tracker designed with your privacy in mind. Track your cycle, log symptoms and moods, and get accurate predictions — all without creating an account or storing anything in the cloud. Your data never leaves your device. No subscriptions. No hidden fees. Just a one-time $1 purchase for lifetime access. Features: Period tracking with smart cycle predictions Fertile window and ovulation day estimates Log your flow level (light, medium, heavy) Track 10 common symptoms including cramps, headaches, bloating, and fatigue Record your mood from 8 options like happy, calm, anxious, and more Visual calendar with color-coded cycle phases Cycle insights showing your average cycle length, period duration, and history Adjustable cycle and period length settings Clean, intuitive design built for everyday use Complete privacy — no account, no cloud, no tracking Bloom is made for anyone who wants a straightforward, private way to understand their cycle. Download once and it's yours forever.

Screenshots

Cofactor4 screens
BLOOM Period Tracker2 screens

Verdict

The call

The clearest difference is price: Cofactor at Free against BLOOM Period Tracker's $1.00. BLOOM Period Tracker's advantage is in-app purchases (none vs 10) and device support (3 vs 1). On ads 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

Cofactor is free to download; BLOOM Period Tracker costs $1.00 up front. Cofactor sells 10 in-app purchases, starting at $4.99 per 7 days. BLOOM Period Tracker asks for nothing beyond the download.

Scorecard4 real differences · 5 level
Cofactor versus BLOOM Period Tracker: the parameters behind the verdict, then further details
ParameterCofactorBLOOM Period Tracker
PriceFree — better$1.00
Rating4.8 (129 ratings) — better—
Number of ratings129 — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size20 MB38 MB
Age rating4+12+
DeveloperMichael Reeves BautistaCHARNE AMY VERSTER

In-app purchases

10 purchases

Cofactor

Subscriptions10
  • Weekly Pro$4.997 Days
  • Weekly Pro$6.997 Days
  • Weekly Premium$9.997 Days
Show 7 more
  • Monthly Pro$9.991 Month
  • Discounted Yearly Subscription$19.991 Year
  • Yearly Discount3 Days trial$19.991 Year
  • Yearly Premium$29.991 Year
  • Yearly Pro$29.991 Year
  • Yearly Pro3 Days trial$29.991 Year
  • Annual pro7 Days trial$49.991 Year
None

BLOOM Period Tracker

No in-app purchases

Questions

Is Cofactor free?
Cofactor is free to download, with in-app purchases available.
Is BLOOM Period Tracker free?
BLOOM Period Tracker costs $1.00, with no in-app purchases.
Do Cofactor or BLOOM Period Tracker have ads?
Neither Cofactor nor BLOOM Period Tracker shows ads.

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