SL Calendar vs HNB Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SL Calendar
A simple and reliable holiday calendar app for Sri Lanka, offering public, bank, and mercantile holidays. Supports Sinhala, Tamil, and English, with monthly views, reminders, and custom event additions. Ideal for planning around national holidays.
- Sri Lankan public, bank, and mercantile holidays
- Monthly calendar view
- Multi-language support (Sinhala, Tamil, English)
- Notifications and reminders
- Custom event creation
- Apple Watch support
- Home screen widgets
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SL Calendar is a simple and reliable holiday calendar app for Sri Lanka, designed for iPhone, iPad, and Apple Watch. It helps you quickly view Sri Lankan public, bank, and mercantile holidays without the need for printed wall calendars or day cards. With support for Sinhala, Tamil, and English, SL Calendar makes it easy for everyone in Sri Lanka to stay informed about holidays throughout the year. View holidays by month, browse upcoming dates, and receive reminders so you never miss an important day. SL Calendar is ideal for planning work, school, travel, and personal events around Sri Lankan holidays — all in one beautifully designed app. Download SL Calendar today and experience a modern holiday calendar made for Sri Lankans. Key Features • Monthly Calendar View – See holidays clearly for each month • Sri Lankan Holidays – Public, bank, and mercantile holidays • Multi-Language Support – Sinhala, Tamil, and English • Widgets – View holidays at a glance from your Home Screen • Notifications & Reminders – Get notified about upcoming holidays • Custom Events – Add your own events and reminders • Apple Watch Support – Check holidays directly from your wrist • Modern Design – Clean, fast, and easy-to-use interface • Free to Use – No subscriptions or hidden costs SL Calendar is crafted with care to suit the Sri Lankan lifestyle and works seamlessly across iPhone, iPad, and Apple Watch.
HNB Authenticator
This app provides a secure and straightforward method for authenticating sign-ins and transactions. It also allows for offline generation of One-Time Passwords (OTPs) via SMS for mobile data usage.
- Secure authentication
- Transaction authentication
- Offline OTP generation
- SMS-based OTPs
- Simple interface
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Use HNB Authenticator from HNB PLC which offers a simple & a secure way to authenticate sign-ins and transactions. For mobile data offline use, generate OTPs via SMS.
Screenshots
Verdict
The clearest difference is rating: HNB Authenticator at 5.0 against SL Calendar's 4.5. HNB Authenticator also leads on update cadence (every 2 months vs every 9 months) and iOS requirement (14.0 vs 17.0). SL Calendar's advantage is ratings volume (52 vs 1). On price, ads, in-app purchases and monetization model 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.
HNB Authenticator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SL Calendar has 52 ratings behind it against 1, so its average is the more settled of the two.
SL Calendar ships an update every 9 months, HNB Authenticator every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.
| Parameter | SL Calendar | HNB Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (52 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 52 — better | 1 |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 24 MB |
| Age rating | 4+ | 17+ |
| Developer | Charith Gunasekera | Hatton National Bank |
Customer experience
SL Calendar
HNB Authenticator
In-app purchases
SL Calendar
No in-app purchases
HNB Authenticator
No in-app purchases
Questions
Is SL Calendar free?
Is HNB Authenticator free?
Which has better reviews, SL Calendar or HNB Authenticator?
Do SL Calendar or HNB Authenticator have ads?
Which is updated more often, SL Calendar or HNB Authenticator?
Other comparisons
