Comparison

HearRed vs Big Days

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

Head to head
About

HearRed

Features
Read full description

Downloading requires a one-time payment, but usage is free forever after download. Why do we charge for downloading? The app description uses very small text—so if you’re reading this, you’re probably not visually impaired. That’s right: this message is written specifically for you, the “sighted” user. Using AI features involves significant costs. To ensure the long-term sustainability of this project, we’ve designed the following model: If you are sighted and don’t need these accessibility features, you can still download the app. Each download by a sighted user (who doesn’t actually use the AI features) generates revenue. After Apple’s commission is deducted, the remaining amount fully covers the cost of two months of AI-powered analysis for one visually impaired user. We also make the following commitments: 1. All proceeds will be used exclusively to support projects benefiting visually impaired users—we will never profit from this. 2. We will continuously update and enhance the app based on user feedback, adding more AI-powered features over time. 3. We will never introduce any additional paywalls or subscription fees for using the app’s core functionalities. HearRed — A Voice-First Period Tracker Designed Exclusively for Visually Impaired Women Hear the voice of red. Safeguard every cycle with confidence. HearRed is the world’s first period-tracking app built specifically for women with visual impairments. We believe every woman deserves accessible, private, and dignified health care—regardless of whether she can see. Fully Voice-Controlled, Truly Accessible From launch to logging your period details, every step is guided by clear voice instructions. Fully compatible with VoiceOver and other screen readers—no visual input required. AI-Powered Menstrual Blood Color Analysis with Spoken Health Insights Using secure, on-device AI technology, HearRed intelligently analyzes changes in menstrual blood color—simply describe it verbally or optionally take a photo. The app then provides clear voice feedback about potential health indicators. Privacy First: Zero Data Upload All your data stays securely on your device. Nothing is ever uploaded to servers, tracked, or stored externally. Your privacy is truly protected. Designed for Her, from the Heart Featuring extra-large text, high-contrast visuals, and full compliance with WCAG 2.1 AAA accessibility standards—every detail reflects deep empathy for the real-world needs of visually impaired women. HearRed is more than just a tool—it’s companionship. In a world without sight, we light the way to menstrual health through sound. Crafted with care by High Entropy Studio — exploring the infinite possibilities where AI meets humanity. User Agreement: https://app.hearred.ziz.hk/terms Privacy Policy: https://app.hearred.ziz.hk/privacy

About

Big Days

A minimalist app to track important future and past dates with a clean interface. Easily manage events, add notes, and receive local reminders. Offers home screen widgets for quick access.

Highlights
  • Count down and count up for events
  • Highlight events happening today
  • Edit, pin, and add notes to events
  • Home screen widgets for progress
  • Local reminders with repeat rules
  • iCloud sync across devices
Features
Read full description

Big Days is a minimalist app focused on managing your important dates. Why choose Big Days: Native experience: Built with SwiftUI and iOS-native interactions for smooth and stable performance Minimal design: Clear information hierarchy so your most important dates are visible at a glance Simple workflow: Create events in just a few steps with no learning curve Core features: Count down and count up: Track days remaining for future events and days passed for past events Today highlight: Events happening today are clearly emphasized so you never miss a key moment Event management: Edit, pin, add notes, and delete events easily Memory notes: Add multiple notes to each event to keep long-term memories Home screen widgets: Check key event progress directly from your Home Screen Local reminders: Flexible reminder preferences and repeat rules Languages and themes: Supports Chinese and English, with Auto, Light, and Dark appearance iCloud sync: Keep your data in sync across devices when enabled Great for birthdays, anniversaries, paydays, exams, trips, project milestones, and holiday countdowns. Big Days is built to stay lightweight, clear, and dependable, so every important date gets the attention it deserves.

Screenshots

HearRed4 screens
Big Days4 screens

Verdict

The call

The clearest difference is price: Big Days at Free against HearRed's $0.99. On ads, in-app purchases, 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

Big Days is free to download; HearRed costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
HearRed versus Big Days: the parameters behind the verdict, then further details
ParameterHearRedBig Days
Price$0.99Free — better
Rating—4.5 (2 ratings) — better
Positive reviews—76.9% of reviews
Number of ratings—2 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size1 MB3 MB
Age rating4+9+
DeveloperHunan Xizi Culture Co., Ltd.刚 王

In-app purchases

None

HearRed

No in-app purchases

None

Big Days

No in-app purchases

Questions

Is HearRed free?
HearRed costs $0.99, with no in-app purchases.
Is Big Days free?
Big Days is free to download, with no in-app purchases.
Do HearRed or Big Days have ads?
Neither HearRed nor Big Days shows ads.

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