Comparison

Tethys Visio vs Html to PDF Converter Plus

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

Head to head

Html to PDF Converter Plus

Web to PDF any website easily

Free

📊 Productivity

No ratingsView app →

About

Tethys Visio

Features

Read full description

Tethys Visio is used to manage IoT devices parameters over BLE.

About

Html to PDF Converter Plus

Features

Read full description

Web to PDF Converter Plus turns any website or HTML into a perfect PDF in one tap. The fastest and easiest web to PDF converter. Open any page with the built-in browser and convert to a clean, professional PDF instantly — ideal for saving articles, recipes, study notes, invoices or reading offline. Key features: • One-tap web to PDF and HTML to PDF conversion • Built-in fast browser — no extra apps needed • Clean PDFs with no clutter, ads or watermarks • Full offline access after saving • Easy sharing via WhatsApp, Mail, Files and more Whether you need a reliable web to PDF converter, HTML to PDF converter or a simple website to PDF tool, this is the app users love. Simple, fast and powerful. Start converting web pages to PDF today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hosnet.org/privacy

Screenshots

Tethys Visio4 screens

Html to PDF Converter Plus4 screens

Verdict

The call

The clearest difference is in-app purchases: Tethys Visio at none against Html to PDF Converter Plus's 2. Tethys Visio also leads on ads (none vs shown). Html to PDF Converter Plus's advantage is update cadence (every 2 days vs monthly) and iOS requirement (13.0 vs 15.0). On price 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. Html to PDF Converter Plus sells 2 in-app purchases, starting at $3.99 per month. Tethys Visio asks for nothing beyond the download.

UpkeepUpdate frequency

Tethys Visio ships an update monthly, Html to PDF Converter Plus every 2 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level

Tethys Visio versus Html to PDF Converter Plus: the parameters behind the verdict, then further details
Parameter	Tethys Visio	Html to PDF Converter Plus
Price	Free	Free
Update frequency	Monthly	Every 2 days — better
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	13.0 — better
Further details — not scored
Size	138 MB	57 MB
Age rating	4+	17+
Developer	Celec	Johan Urgelles

In-app purchases

None

Tethys Visio

No in-app purchases

2 purchases

Html to PDF Converter Plus

Subscriptions2

Monthly Premium$3.991 Month
Annual Premium$8.991 Year

Questions

Is Tethys Visio free?

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

Is Html to PDF Converter Plus free?

Html to PDF Converter Plus is free to download, with in-app purchases available.

Do Tethys Visio or Html to PDF Converter Plus have ads?

Html to PDF Converter Plus shows ads; Tethys Visio does not.

Which is updated more often, Tethys Visio or Html to PDF Converter Plus?

Tethys Visio ships an update monthly, and Html to PDF Converter Plus every 2 days. Most recently, Tethys Visio was updated on October 30, 2026 and Html to PDF Converter Plus on October 25, 2026.