Comparison

FCM IoT vs DarkScreenReader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FCM IoT

Features
Read full description

eFMS is short of electronic facility management system, focus on company’s EHS, facility and admin management.This is a software with WEB dynamic template and workflow engine, provides customer one-stop SaaS on cloud platform, user can access it via H5, Webpage, APP. Free configuration of permissions, can be used on the same platform in multi-sites and factories, or can be deployed privately.

About

DarkScreenReader

This tool allows discreet reading of local novel files by displaying text only in a small, user-defined area against a black screen. It mimics a locked phone to avoid drawing attention in public spaces. Features include customizable display, tap-to-hide functionality, and automatic page turning.

Highlights
  • Selected display area on black screen
  • Tap to hide/resume text
  • Automatic page turning
  • Swipe navigation
  • Customizable display area
  • Local file support
Features
Read full description

DarkScreenReader is a discreet reading tool for local novel files. It keeps most of the screen completely black and displays novel text only in a small area selected by you, making the phone look as if it is still locked. It is designed for office environments where you may prefer not to draw attention to your reading. 【QUICK START】 Open the app and select a local novel file Adjust the position and size of the text display area Enter the black-screen reading mode and start reading 【BLACK-SCREEN READING MODE】 • Selected display area: Show novel text only in the area you choose while keeping the rest of the screen completely black • Tap to hide: Tap the screen to hide the text immediately and switch to a fully black screen • Tap to resume: Tap again to restore the text and continue automatic page turning • Automatic page turning: Read continuously at your selected speed, with automatic pausing when the text is hidden • Swipe navigation: Swipe left or right to move to the previous or next page • Long-press menu: Long-press the screen in reading mode to open reading settings and controls • Customizable display area: Adjust the position and size of the text area to suit your environment 【LOCAL CONTENT】 All novel content is selected and imported by the user. DarkScreenReader does not provide an online library and does not download, sell, or distribute novel content. 【IMPORTANT INFORMATION】 “Dark screen reading” refers to a near-screen-off visual effect created by a pure black background and a small text display area. It does not actually turn off the display, lock the device, or replace the iOS Lock Screen. Please use this app only in safe and appropriate environments. Privacy Policy URL:https://www.assetpacket.top/dark-screen-reader/privacy.html Terms/EULA:https://www.assetpacket.top/dark-screen-reader/terms.html

Screenshots

FCM IoT1 screens
DarkScreenReader4 screens

Verdict

The call

The clearest difference is in-app purchases: FCM IoT at none against DarkScreenReader's 1. FCM IoT also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DarkScreenReader sells 1 one-off in-app purchase. FCM IoT asks for nothing beyond the download.

UpkeepUpdate frequency

FCM IoT ships an update every 3 weeks, DarkScreenReader every 5 weeks. The most recent releases landed on October 5, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 6 level
FCM IoT versus DarkScreenReader: the parameters behind the verdict, then further details
ParameterFCM IoTDarkScreenReader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size96 MB2 MB
Age rating4+4+
Developer苏州曼捷科智能科技有限公司兴雨 蔡

In-app purchases

None

FCM IoT

No in-app purchases

1 purchases

DarkScreenReader

One-time1
  • DarkScreenReader Pro LifeTime$1.99

Questions

Is FCM IoT free?
FCM IoT is free to download, with no in-app purchases.
Is DarkScreenReader free?
DarkScreenReader is free to download, with in-app purchases available.
Do FCM IoT or DarkScreenReader have ads?
Neither FCM IoT nor DarkScreenReader shows ads.
Which is updated more often, FCM IoT or DarkScreenReader?
FCM IoT ships an update every 3 weeks, and DarkScreenReader every 5 weeks. Most recently, FCM IoT was updated on October 5, 2026 and DarkScreenReader on September 28, 2026.

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