Red Days vs Zero Issues
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Red Days
Easily track upcoming public holidays with a countdown to your next day off. Access a year's worth of holiday information offline, right from your wrist or phone.
- Public holiday countdowns
- US, UK, Canada, Iceland holidays
- Offline access
- Wearable support
- Yearly holiday list
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Ever wonder when the next day-off work will be? Red Days displays a countdown list of public holidays for US, UK, Canada and Iceland. Now you know how many days left until you can relax. No internet needed, a years worth of holidays at your finger tips and on your wrist.
Zero Issues
This customizable task organizer helps users manage to-do lists with intuitive sorting and filtering. It allows for deep personalization of lists, tags, and tasks, aiming to be a comprehensive solution for organizing daily activities.
- Intuitive organization
- Easy sorting and filtering
- Customizable lists and tags
- Task management
- One-stop shop for organizing
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Designed for Software Developers, usable by anyone. Zero Issues was created to be an issue tracker but has evolved into something way more powerful and way more customizable. Use Zero Issues to make completing tasks tangible and easy with intuitive organization and easy sorting and filtering. Customize every level of the app from Lists and Tags to Tasks. Zero Issues is designed to be the one-stop-shop for organizing your to-do's. Try before you buy! Zero Issues is a paid app, instead of paying without having experienced it and seeing if it's for you, simply pay when you're ready- there's no time limit. Have any feedback or questions? Simply contact me via Gryzle.com. Thank you for your feedback!
Screenshots
Verdict
The clearest difference is rating: Red Days at 4.5 against Zero Issues's 4.0. Red Days also leads on in-app purchases (none vs 1). Zero Issues's advantage is iOS requirement (17.0 vs 26.6). On price, review sentiment, ratings volume and 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
Both are free to download. Zero Issues sells 1 one-off in-app purchase. Red Days asks for nothing beyond the download.
Red Days holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | Red Days | Zero Issues |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPad, Mac |
| Requires iOS | 26.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | (optional.is) | Gryzle LLC |
Customer experience
Red Days
Zero Issues
In-app purchases
Red Days
No in-app purchases
Zero Issues
- Zero Issues - Full Experience$2.99









