SL Calendar vs Lease Operator Toolkit
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.
Lease Operator Toolkit
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Lease Operator Toolkit is a practical field companion designed specifically for oilfield lease operators and production personnel. It combines commonly used field calculations, workover utilities, and note-taking tools into one easy-to-use app so you can work faster and stay organized at the wellsite. Whether you are monitoring wells, calculating volumes, performing tubing integrity tests, or documenting field activity, Lease Operator Toolkit keeps essential tools in one place—right on your phone. Built by someone who works in the field, this app focuses on speed, clarity, and reliability when you need answers quickly. Core Tools Gas Volume Calculator, Estimate gas volumes quickly using field inputs. Spill Calculator – Pro, Calculate spill volumes and store results for later reference or reporting. Volume in Pipe, Estimate gas volume contained in pipe using pipe dimensions and temperature. Workover Assistant, Includes pipe tally tools to help track tubing and workover operations. H.I.T. Test Tracker, Record and trend Tubing Integrity Test data to monitor well performance. Field Notes, Capture and store notes directly from the field. Field Notes allow you to quickly document wellsite observations, operational details, and important reminders so information is always available when you need it. Designed for Real Field Conditions Simple and fast interface Works entirely on your device No accounts or logins required Built for production operators and field personnel Clean layout that works in both light and dark mode Privacy First Lease Operator Toolkit does not collect or transmit user data. All information entered into the app is stored locally on your device. Important Notice Lease Operator Toolkit is intended as a field reference tool only. All calculations should be verified using company standards, engineering practices, and operational procedures.
Screenshots
Verdict
SL Calendar and Lease Operator Toolkit are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 | SL Calendar | Lease Operator Toolkit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (52 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 52 — better | — |
| Update frequency | Every 9 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Charith Gunasekera | Kelly Gayneaux |
In-app purchases
SL Calendar
No in-app purchases
Lease Operator Toolkit
No in-app purchases
Questions
Is SL Calendar free?
Is Lease Operator Toolkit free?
Do SL Calendar or Lease Operator Toolkit have ads?
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