Red Days vs ONWATT
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.
ONWATT
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ONWATT Energy is a smart energy management app designed to give you full control over your home battery system. Monitor your energy usage in real-time, optimize when you store and use electricity, and reduce your energy costs effortlessly. Key Features: - Real-time monitoring of battery, solar and grid usage - Smart energy control modes - Backup power insights during outages - Data dashboard with clear energy insights - Easy connection via WiFi Designed for simplicity, built for performance. Take control of your energy with ONWATT.
Screenshots
Verdict
The clearest difference is device support: Red Days at 4 against ONWATT's 2. ONWATT's advantage is iOS requirement (14.0 vs 26.6). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Red Days | ONWATT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPod |
| Requires iOS | 26.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 156 MB |
| Age rating | 4+ | 4+ |
| Developer | (optional.is) | Alpha ESS Co., Ltd. |
In-app purchases
Red Days
No in-app purchases
ONWATT
No in-app purchases
