Simple Temperature Converter vs Centerline Scheduler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Temperature Converter
Easily convert temperatures between Celsius and Fahrenheit with a simple sliding interface. This app offers a quick and intuitive way to switch units without typing, with customizable temperature ranges. It's designed for users who frequently need to check temperatures in different scales.
- Sliding conversion interface
- Celsius to Fahrenheit conversion
- Fahrenheit to Celsius conversion
- Customizable temperature range
- Quick and simple to use
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Tired of viewing the weather and having to fumble with switching between F and C all the time? Simple and quick sliding to convert the temperature from C to F, no need to type anything, just slide and go. Default temperature range is between 50C (122F) and -50C (-58F). v1.2 Update You can now change the minimum and maximum values and the slider will update live. Values reset to 50C and -50C after closing the app.
Centerline Scheduler
This app provides pilots with a modern, mobile-first interface for managing flight school and flying club reservations. Book, cancel, and log flights directly from your phone, with features like real-time aircraft alerts and Google Calendar sync.
- Book, cancel, preflight, and postflight logging
- Dashboard with bookings, currency, and balance
- Day/Week schedule view with fleet details
- One-tap booking for available slots
- Aircraft change and grounding alerts
- Instructor-student pairing and currency sharing
- Google Calendar synchronization
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Centerline is a free, independent mobile app for pilots at flight schools and flying clubs that use ScheduleMaster. Sign in with your existing club credentials and run your flying from your phone. Book, cancel, preflight, and postflight on the ramp, in the plane, or between meetings. PLAN AND BOOK - Dashboard: active bookings, upcoming reservations, past flights, currency at a glance, and your running statement balance - Day and week schedule: the entire club fleet in one view, tap for detail, pinch to zoom the ribbon, drag to shift the window - One-tap booking: pick an empty slot on any aircraft's ribbon, fill four fields, tap Book - Linked accounts: pilots at multiple clubs sign in once and switch without retyping credentials FLY - Preflight and postflight: Hobbs and tach entry, no-flight and maintenance modes, receipt items - ForeFlight export: send completed flights straight to your logbook - Live Activities: your reservation, the weather, and squawk status on your lock screen - Aircraft alerts: get a push if a plane you booked changes rate, picks up a squawk, or gets grounded before you fly SHARE - Instructor and student links: CFIs pair with students to see upcoming lessons and share currency at a glance - Rideshare: offer a right seat on a cross country you are planning, or ride along on someone else's - Google Calendar sync: every booking mirrors to your personal calendar, optional, connect once in Settings Dark mode, dynamic type, and safe-area aware throughout. Centerline is an independent project and is not affiliated with or endorsed by ScheduleMaster or any club. Your club account stays with your club, and Centerline never stores your password. Requires an active account at a club that uses ScheduleMaster.
Screenshots
Verdict
The clearest difference is price: Centerline Scheduler at Free against Simple Temperature Converter's $0.99. Centerline Scheduler also leads on update cadence (every 2 days vs every 6 months). Simple Temperature Converter's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On rating, ratings volume, 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
Centerline Scheduler is free to download; Simple Temperature Converter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Simple Temperature Converter against 5.0 for Centerline Scheduler. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
Simple Temperature Converter ships an update every 6 months, Centerline Scheduler every 2 days. Both last shipped on October 24, 2026.
| Parameter | Simple Temperature Converter | Centerline Scheduler |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (4 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 6 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Bruce Anthony | Great Scott! Interactive |
Customer experience
Simple Temperature Converter
Centerline Scheduler
In-app purchases
Simple Temperature Converter
No in-app purchases
Centerline Scheduler
No in-app purchases
Questions
Is Simple Temperature Converter free?
Is Centerline Scheduler free?
Which has better reviews, Simple Temperature Converter or Centerline Scheduler?
Do Simple Temperature Converter or Centerline Scheduler have ads?
Which is updated more often, Simple Temperature Converter or Centerline Scheduler?
Other comparisons
