How Long Left vs RS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
How Long Left
This app helps you visualize the time remaining for your calendar events. It offers a Today Widget, Siri integration, and an Apple Watch app for convenient access. Receive notifications for upcoming events and customize your watch face with countdown complications.
- Countdown calendar events
- Today Widget integration
- Siri integration
- Apple Watch app
- Time remaining notifications
- Apple Watch complications
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How Long Left is a simple app that helps you manage your time by displaying the time remaining of current calendar events. It also includes a Today Widget, Siri integration, and an Apple Watch app, time remaining notifications, and more. There is also an Apple Watch complication that, with an in-app purchase, can display a countdown for current and upcoming events.
RS
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This App is a smart controling system which is aim at Bluetooth controling series products, you can entirely enjoy the awesome emotional and memorable scent atmosphere by moving your fingers. Function -Bluetooth on/off device via App -Bluetooth controling, including working hours, week,levels -Easily control all of your bluetooth scent devices, such as device installed in celling -Telling you how many percent scent is left in device -You can modify device's name on App -Distinguish device by your remarks -Check out the PC board version and software version -You can amend password for devices
Screenshots
Verdict
The clearest difference is in-app purchases: RS at none against How Long Left's 4. How Long Left's advantage is device support (4 vs 2) and iOS requirement (12.0 vs 15.6). On price 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. How Long Left sells 4 one-off in-app purchases. RS asks for nothing beyond the download.
| Parameter | How Long Left | RS |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (40 ratings) — better | — |
| Positive reviews | 58.5% of reviews | — |
| Number of ratings | 40 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 27 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Kontos | Emkanat for Software Development |
In-app purchases
How Long Left
- How Long Left Widget$1.99
- Premium Watch Complication$4.99
- Legacy Pro Lifetime$39.99
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- How Long Left Pro (Lifetime)$49.99
RS
No in-app purchases









