# Readings App vs SLD System

The clearest difference is update cadence: Readings App at weekly against SLD System's every 3 weeks. SLD System's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Readings App ships an update weekly, SLD System every 3 weeks. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Readings App | SLD System |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 47 MB | 31 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [jibran saeed](https://appshunter.io/developer/1736298129) | [Manage](https://appshunter.io/developer/1601418123) |

## What reviewers say

### Readings App

[App page](https://appshunter.io/ios/app/readings-app/id6479556102)

Discover your next favorite book with a vast selection of titles across all genres. This app offers user-friendly browsing, curated recommendations, and seamless navigation for an unparalleled online bookstore experience.

**Highlights:** Vast selection of titles, Diverse genres, User-friendly browsing, Curated recommendations, Seamless navigation, Discover bestsellers and hidden gems

**Features:** macOS Compatibility

**In-app purchases:** none


### SLD System

[App page](https://appshunter.io/ios/app/sld-system/id6741755009)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Readings App free?

Readings App is free to download, with no in-app purchases.

### Is SLD System free?

SLD System is free to download, with no in-app purchases.

### Do Readings App or SLD System have ads?

Neither Readings App nor SLD System shows ads.

### Which is updated more often, Readings App or SLD System?

Readings App ships an update weekly, and SLD System every 3 weeks. Most recently, Readings App was updated on October 11, 2026 and SLD System on October 14, 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.*