Comparison

PDF Tools vs plaiiin Light

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

Head to head
About

PDF Tools

Features
Read full description

Transform your iPhone into the ultimate PDF toolkit! Scan, edit, merge, convert, and sign PDFs with professional quality. Support for 15 languages. SCANNER (AI-Powered) • Scan documents with your camera • Auto edge detection & enhancement • Multi-page scanning support • High-quality image processing PDF TOOLS • Merge multiple PDF files • Split and extract pages • Compress large files • Password protection & security • Organize and reorder pages EDIT & ANNOTATE • Edit PDF text and images • Fill forms easily • Add signatures & stamps • Highlight and annotate • Draw and sketch on PDFs CONVERT & TRANSFORM • Image to PDF converter • Word/Excel/PowerPoint to PDF • PDF to Word/Excel/Image • OCR text recognition • Batch conversion support MULTILINGUAL SUPPORT Available in 15 languages: English, Turkish, Spanish, French, German, Italian, Portuguese, Russian, Hindi, Dutch, Polish, Romanian, Chinese, Japanese, Korean PREMIUM FEATURES • Unlimited access to all tools • Ad-free experience • Advanced OCR technology • Priority customer support • Cloud storage integration • No watermarks PERFECT FOR • Students & Educators • Business Professionals • Remote Workers • Legal Documents • Contract Management • Invoice Processing PRIVACY & SECURITY • All processing done locally • No data sent to servers • Secure document handling • Password protection available WHY CHOOSE CONNECT PDF? • Easy to use interface • Fast and reliable • Regular updates • Excellent customer support • Affordable pricing SUBSCRIPTION INFORMATION Connect PDF offers monthly and annual subscription plans. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Privacy Policy: Available in Settings Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download Connect PDF today and experience the most comprehensive PDF solution for iOS!

About

plaiiin Light

Features
Read full description

PlaiiinLight is the companion app for PlaiiinLightOS — free, open‑source firmware that turns any ESP32‑based LED lamp into something you shape with a sentence. Describe a pattern in plain words — "a slow aurora," "fire crackling in the corner," "a calm blue breathing glow" — and AI writes an effect that runs right on the lamp. A live in‑app preview shows the result before you push it to the LEDs, so you can iterate without ever touching the hardware. From the dashboard, drive every lamp at a glance — set color and brightness, switch between effects, and tune each one live with on‑screen dials for speed, scale, intensity, and more. Adjust a knob and the lamp responds instantly. Stream an animated GIF straight to the lamp, frame by frame, or write your own effect in JavaScript — Manage your effects it in the app, save it to the lamp, and upload or tweak it anytime. It all runs on the device itself, not in the cloud. Turn your lamp into a pixel canvas — paint, brush, spray and fill tools, live streaming as you draw, photo import, and images you save on the lamp itself to show again anytime. Got more than one lamp? Group them into a swarm and they act as one: a color, an effect, a brightness change or a tap on Off propagates to every member instantly, lamp to lamp over your Wi‑Fi. Add or remove members anytime, and show the whole swarm as a single dashboard tile. Onboard a new PlaiiinLightOS lamp over Bluetooth, then control it over your local Wi‑Fi network. Keeping it current is effortless: the app checks for new firmware, shows a badge and installs the update over the air with one tap — no cables, no computer. Adjust the lamp's settings — name, network, MQTT, and more — right from the app. Share a lamp with family or friends by minting a share key, scanning a QR code, or handing it over via Bluetooth — no re‑pairing, with roles that keep admins, creators, and users apart. Bring your own AI provider key (Anthropic, OpenAI, or Google). It's stored only in your device's Keychain — PlaiiinLight has no account to sign up for and no servers of its own. Your lamps, your key, your light.

Screenshots

PDF Tools4 screens
plaiiin Light4 screens

Verdict

The call

The clearest difference is in-app purchases: plaiiin Light at none against PDF Tools's 2. plaiiin Light also leads on ads (none vs shown). PDF Tools's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence and device support 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. PDF Tools sells 2 in-app purchases, starting at $0.99 per month. plaiiin Light asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Tools ships an update every 3 months, plaiiin Light every 2 months. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level
PDF Tools versus plaiiin Light: the parameters behind the verdict, then further details
ParameterPDF Toolsplaiiin Light
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size44 MB6 MB
Age rating4+4+
DeveloperAziz Kurtplaiiin GmbH

In-app purchases

2 purchases

PDF Tools

Subscriptions2
  • Monthly Subscription$0.991 Month
  • Annual Subscription$3.991 Year
None

plaiiin Light

No in-app purchases

Questions

Is PDF Tools free?
PDF Tools is free to download, with in-app purchases available.
Is plaiiin Light free?
plaiiin Light is free to download, with no in-app purchases.
Do PDF Tools or plaiiin Light have ads?
PDF Tools shows ads; plaiiin Light does not.
Which is updated more often, PDF Tools or plaiiin Light?
PDF Tools ships an update every 3 months, and plaiiin Light every 2 months. Most recently, PDF Tools was updated on October 27, 2026 and plaiiin Light on November 5, 2026.

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