# Simple Temperature vs EPUB Reader

The clearest difference is in-app purchases: Simple Temperature at none against EPUB Reader's 3. EPUB Reader's advantage is update cadence (every 3 months vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Simple Temperature costs $0.99 and EPUB Reader $0.99 up front. EPUB Reader sells 3 in-app purchases, starting at $0.99 per 7 days. Simple Temperature asks for nothing beyond the download.

Simple Temperature ships an update every 12 months, EPUB Reader every 3 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Simple Temperature | EPUB Reader |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/simple-temperature/id977935395/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 1 MB | 15 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Palmer](https://appshunter.io/developer/914507761) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### Simple Temperature

[App page](https://appshunter.io/ios/app/simple-temperature/id977935395)

Easily convert temperatures between Fahrenheit and Celsius with this straightforward utility. Simply input a value and tap to see the converted result instantly. It's designed for speed and simplicity.

**Highlights:** Fahrenheit to Celsius conversion, Celsius to Fahrenheit conversion, Instant conversion on tap, Simple user interface, Fast performance

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

**In-app purchases:** none


### EPUB Reader

[App page](https://appshunter.io/ios/app/epub-reader-for-epub-book/id6756795788)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insight Reader Premium - weekly | $0.99 | per 7 days |
| Insight Reader Premium - yearly | $39.99 | per year |
| EPUB365 Premium  - lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Simple Temperature free?

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

### Is EPUB Reader free?

EPUB Reader costs $0.99, and also offers in-app purchases.

### Do Simple Temperature or EPUB Reader have ads?

Neither Simple Temperature nor EPUB Reader shows ads.

### Which is updated more often, Simple Temperature or EPUB Reader?

Simple Temperature ships an update every 12 months, and EPUB Reader every 3 months. Most recently, Simple Temperature was updated on October 14, 2026 and EPUB Reader on October 1, 2026.

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