Comparison

Lightning Sync vs ApprovalSignSec

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

Head to head

Lightning Sync

Free

🔧 Utilities

★ 1.01 ratingsView app →

About

Lightning Sync

Access your iOS device's photos from your PC's web browser. Easily browse, convert images to JPG/PNG, and download them in batches. Unlock premium features with a subscription for enhanced functionality.

Highlights

Access photos from PC web browser
Convert images to PNG/JPG
Batch download photos/videos
Preview photos/videos
Setup web server on iOS device

Features

Read full description

Lightning Sync helps you access your photos from your PC web browser.It setup a web server on your iOS device, and you can easily browse and download photos via web page.Its core features includes: convert image to PNG/JPG format, batch download, preview photos/videos. we offer three subscriptions: yearly,3 months,6 months, each subscription unlock all premium functions, such as batch images/videos download, and many new features that coming soon. terms of use: https://gitee.com/vctr/support/raw/master/termsOfUse

About

ApprovalSignSec

Features

Read full description

ApprovalSign is a mobile approval application based on QR code scanning technology, designed to simplify internal enterprise approval processes and improve work efficiency. By digitalizing traditional approval workflows, ApprovalSign provides enterprises with a fast, secure, and convenient approval solution.

Screenshots

Lightning Sync4 screens

ApprovalSignSec1 screens

Verdict

The call

The clearest difference is in-app purchases: ApprovalSignSec at none against Lightning Sync's 3. Lightning Sync's advantage is update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement 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. Lightning Sync sells 3 in-app purchases, starting at $3.99 per 3 months. ApprovalSignSec asks for nothing beyond the download.

UpkeepUpdate frequency

Lightning Sync ships an update every 2 days, ApprovalSignSec every 2 months. The most recent releases landed on June 4, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level

Lightning Sync versus ApprovalSignSec: the parameters behind the verdict, then further details
Parameter	Lightning Sync	ApprovalSignSec
Price	Free	Free
Rating	1.0 (1 ratings) — better	—
Positive reviews	33.3% of reviews	—
Number of ratings	1 — better	—
Update frequency	Every 2 days — better	Every 2 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Freemium	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.6	14 — better
Further details — not scored
Size	4 MB	24 MB
Age rating	4+	4+
Developer	振强劳	Kyler Chew

In-app purchases

3 purchases

Lightning Sync

Subscriptions3

3 Months Premium Access$3.993 Months
6 Months Premium Access$4.996 Months
Yearly Premium Access$9.991 Year

None

ApprovalSignSec

No in-app purchases

Questions

Is Lightning Sync free?

Lightning Sync is free to download, with in-app purchases available.

Is ApprovalSignSec free?

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

Do Lightning Sync or ApprovalSignSec have ads?

Neither Lightning Sync nor ApprovalSignSec shows ads.

Which is updated more often, Lightning Sync or ApprovalSignSec?

Lightning Sync ships an update every 2 days, and ApprovalSignSec every 2 months. Most recently, Lightning Sync was updated on June 4, 2026 and ApprovalSignSec on September 13, 2026.