Comparison

PARM vs Zwind

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

Head to head
About

PARM

Features
Read full description

PARM lets you measure light intensity for your plants quickly and easily — using only your iPhone or iPad camera. - Lightweight and fast: built entirely in SwiftUI, optimized for speed and efficiency. - Camera-only: no extra sensors, accounts, or subscriptions required. - Privacy-first: no third-party services, no data collection, everything stays on your device. - Plant-friendly: check PAR (Photosynthetically Active Radiation) values to better understand your plant’s light conditions. - Keep track: save and review your measurements over time. PARM is simple, private, and reliable — on both iPhone and iPad.

About

Zwind

Transform your device into a personal WebDAV server. Access files locally or from cloud storage, manage multiple servers, and enjoy a built-in media player and text editor. Securely share files with others.

Highlights
  • Run multiple WebDAV servers
  • Support NetDisks, SMB, local files
  • Built-in WebDAV browser
  • Integrated media player
  • Text editor
  • Secure server access
Features
Read full description

Turn your iPhone or iPad into a local WebDAV server and personal content hub. Zwind maps local files, SMB/NAS, cloud drives, RSS/OPML feeds, web media, and Emby libraries into one WebDAV-style resource tree, so files, feeds, web lists, media, and links can be browsed, read, played, streamed, and shared. Zwind is more than a file server or player. It is a lightweight workspace with built-in WebDAV Browser, Web Browser, Feed View, Video Player, Music Player, Image Viewer, Text Editor, Markdown Reader, Bookmarks, and more. Map content into Zwind instead of copying it into the app, then read, play, edit, search, cast, or continue in third-party WebDAV clients and players. Background WebDAV server operation is supported. Start free with one WebDAV server. Upgrade to Zwind VIP for multiple servers, advanced resolvers, and richer content workflows. Selected resolvers can also be unlocked separately. PERSONAL WEBDAV SERVER Create a WebDAV server on your iPhone or iPad. Map local folders or connect SMB, NAS, and cloud storage. Share files over LAN and access them from browsers, players, file managers, or any WebDAV-compatible app. MULTI-SOURCE RESOURCE TREE Bring local folders, SMB/NAS, iOS Files cloud folders, Quark Drive resources, RSS/OPML, web media, and Emby libraries into one unified directory. To you and third-party clients, they open like normal folders. RESOURCE PROJECTION & RESOLVERS Zwind projects feeds, search results, web lists, cloud-drive-like sources, and media libraries into virtual WebDAV directories. Supported resolvers: * RSS Projection: RSS, Atom, podcasts, and OPML imports as readable feed resources. * Quark Search Import: search and save supported Quark Drive shares. * Web Media Projection: parse web media sites into clean virtual folders, so webpage media can be browsed, read, or played like files. * Emby Library Projection: browse Emby libraries as WebDAV directories with metadata, filters, pagination, search, and playback. FEED VIEW Feed View is Zwind’s unified reading layer. Aggregate RSS, Atom, OPML, podcasts, YouTube channels, Reddit communities, and web sources connected through Web Media rules. Articles, images, audio, and video resources can appear together in one subscription timeline. WEB MEDIA PROJECTION With open .wm rules based on the ZWMP open standard, a few lines of declarative configuration can describe how a list page is detected and parsed. Turn webpages into browsable WebDAV directories and enjoy them inside Zwind. BUILT-IN APPS Use WebDAV Browser, Web Browser, Feed View, Video Player, Music Player, Image Viewer, Text Editor, Markdown Reader, and Bookmarks from one place. MEDIA, READING & FILES Play video and music, view images, read Markdown or text, and manage files. Supports queues, minimized playback, Picture in Picture for supported videos, subtitles, AirPlay, DLNA/UPnP casting, image zoom, media search, WebDAV URL bookmarks, folder flattening, file actions, and quick previews. SECURITY & CONVENIENCE Zwind’s WebDAV server runs locally on your device. You decide which directories to expose and whether visitors must enter username and password. Server Lock can require a password or Face ID before starting selected servers. PREMIUM The free version can run one WebDAV server. Upgrade to Zwind VIP to run multiple servers, unlock advanced workflows, and use the growing Resolver system. SUPPORT Email: support@zwind.app Privacy Policy: https://zwind.app/Privacy_Policy.html Terms of Service: https://zwind.app/Terms_of_Service.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Docs and guides: https://zwind.app/

Screenshots

PARM4 screens
Zwind4 screens

Verdict

The call

The clearest difference is price: Zwind at Free against PARM's $2.99. Zwind also leads on update cadence (every 6 days vs every 6 months). PARM's advantage is in-app purchases (none vs 9) and ads (none vs shown). On 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

Zwind is free to download; PARM costs $2.99 up front. Zwind sells 9 in-app purchases, starting at $0.99 per month. PARM asks for nothing beyond the download.

UpkeepUpdate frequency

PARM ships an update every 6 months, Zwind every 6 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
PARM versus Zwind: the parameters behind the verdict, then further details
ParameterPARMZwind
Price$2.99Free — better
Rating—3.8 (12 ratings) — better
Positive reviews—80.0% of reviews
Number of ratings—12 — better
Update frequencyEvery 6 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size0 MB103 MB
Age rating4+17+
DeveloperMarco TiniZwind App

In-app purchases

None

PARM

No in-app purchases

9 purchases

Zwind

Subscriptions2
  • Zwind VIP - Monthly$0.991 Month
  • Zwind VIP - Yearly$9.991 Year
One-time7
  • Cloud Drives Search Import Resolver$6.99
  • IPTV Resolver$6.99
  • Emby Library Projection Resolver$6.99
Show 4 more
  • RSS Projection Resolver$6.99
  • Quark Search Import Resolver$6.99
  • Web Media Projection Resolver$6.99
  • Zwind VIP - Lifetime(iPhone & iPad)$19.99

Questions

Is PARM free?
PARM costs $2.99, with no in-app purchases.
Is Zwind free?
Zwind is free to download, with in-app purchases available.
Do PARM or Zwind have ads?
Zwind shows ads; PARM does not.
Which is updated more often, PARM or Zwind?
PARM ships an update every 6 months, and Zwind every 6 days. Most recently, PARM was updated on October 30, 2026 and Zwind on November 5, 2026.

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