Comparison

Know Her vs Code Red

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

Head to head
About

Know Her

Read full description

Stop guessing how she feels. Luteal phase? Estrogen surge? Follicular window? You don't need to know any of that. Built for partners who want to better understand, support and connect — without awkward conversations, confusing medical terms or guesswork. 10-second setup. That's it. Start understanding what is happening now, what is coming next, and when she may need more patience, space or support. You don't even need to open the app. Everything is available directly from the Home Screen widget. Try free for 14 days. WHAT YOU GET • Daily mood, energy and fertility indicators • Widget for instant updates • Get notified when phases change • Smarter predictions over time • View upcoming phases in advance • Set personal notes and reminders • Fully private, offline and biometric-protected BUILT FOR PRIVACY Everything stays on your device. No account. No uploads. No cloud. No servers. Delete or reset the app and every record disappears with it. Not a surveillance tool. A thoughtfulness tool. HOW IT WORKS Know Her uses logged cycle data to estimate upcoming phases and important transitions. Predictions become more accurate over time as more cycles are added. This app is not a medical tool. It's your personal assistant for a better relationship. Terms of Use: https://knowherapp.com/terms

About

Code Red

This app helps partners understand and support each other through menstrual cycles. It provides simple reminders and phase-based tips to foster better communication and preparedness.

Highlights
  • Partner-friendly cycle tracking
  • 28-day cycle overview
  • Daily reminders and nudges
  • Phase-based survival tips
  • Do/don't guidance
  • Period and PMS awareness
Features
Read full description

Code Red is a fun cycle-tracking app made for partners who want to be more thoughtful, prepared, and supportive. Track your partner’s cycle, understand what phase they may be in, and get simple reminders so you can show up better — whether that means giving extra patience, planning ahead, bringing snacks, or knowing when to not take things personally. Code Red keeps things light, simple, and helpful. It’s not about overthinking every mood or moment. It’s about being more aware, more prepared, and a better partner. Features include: Partner-friendly cycle tracking 28-day cycle overview Daily reminders and helpful nudges Phase-based “survival tips” Do / don’t guidance Period and PMS awareness Couples sync coming soon Every cycle is different, but a little awareness can go a long way. Code Red helps partners stay ready, supportive, and maybe even earn a few bonus points. Subscription: Subscription automatically renews annually for $19.99 unless canceled at least 24 hours before the renewal date. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Know Her4 screens
Code Red4 screens

Verdict

The call

The clearest difference is iOS requirement: Know Her at 15.1 against Code Red's 26.5. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Know Her sells 2 in-app purchases, starting at $2.99 per month and Code Red sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 7 level
Know Her versus Code Red: the parameters behind the verdict, then further details
ParameterKnow HerCode Red
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better26.5
Further details — not scored
Size53 MB9 MB
Age rating17+4+
DeveloperGustavo AlvesTalk or Not, Inc.

In-app purchases

2 purchases

Know Her

Subscriptions2
  • Pro Monthly14 Days trial$2.991 Month
  • Pro Annual14 Days trial$19.991 Year
1 purchases

Code Red

Subscriptions1
  • Annual Premium3 Days trial$19.991 Year

Questions

Is Know Her free?
Know Her is free to download, with in-app purchases available.
Is Code Red free?
Code Red is free to download, with in-app purchases available.
Do Know Her or Code Red have ads?
Neither Know Her nor Code Red shows ads.

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