# Simple Temperature Converter vs Centerline Scheduler

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.

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.

## The numbers

| Metric | Simple Temperature Converter | Centerline Scheduler |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/simple-temperature-converter/id1386469646/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/centerline-scheduler/id6800510465/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 0 MB | 16 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bruce Anthony](https://appshunter.io/developer/1386469645) | [Great Scott! Interactive](https://appshunter.io/developer/553560593) |

## What reviewers say

### Simple Temperature Converter

[App page](https://appshunter.io/ios/app/simple-temperature-converter/id1386469646)

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.

**Highlights:** Sliding conversion interface, Celsius to Fahrenheit conversion, Fahrenheit to Celsius conversion, Customizable temperature range, Quick and simple to use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Centerline Scheduler

[App page](https://appshunter.io/ios/app/centerline-scheduler/id6800510465)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Temperature Converter free?

Simple Temperature Converter costs $0.99, with no in-app purchases.

### Is Centerline Scheduler free?

Centerline Scheduler is free to download, with no in-app purchases.

### Which has better reviews, Simple Temperature Converter or Centerline Scheduler?

Simple Temperature Converter and Centerline Scheduler are both rated 5.0 out of 5 on the App Store, from 4 and 4 ratings respectively.

### Do Simple Temperature Converter or Centerline Scheduler have ads?

Neither Simple Temperature Converter nor Centerline Scheduler shows ads.

### Which is updated more often, Simple Temperature Converter or Centerline Scheduler?

Simple Temperature Converter ships an update every 6 months, and Centerline Scheduler every 2 days. Most recently, Simple Temperature Converter was updated on October 24, 2026 and Centerline Scheduler on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*