Comparison

SimplePi for Raspberry Pi vs PDF Diet Mobile

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

Head to head
About

SimplePi for Raspberry Pi

Manage your Raspberry Pi from your iPhone or iPad. Monitor system activity with graphs, run custom commands, and access a terminal shell. Includes widgets, file browsing, and support for multiple Pis.

Highlights
  • Monitor CPU, Memory, Temperature, Disk Usage
  • Run custom commands with one tap
  • Full terminal shell access
  • Home screen widgets for monitoring and control
  • File browser with export options
  • Manage multiple Raspberry Pi devices
  • Public key authentication
Features
Read full description

SimplePi is the Swiss army knife utility app for monitoring, controlling, and managing your Raspberry Pi using your iPhone and iPad. MONITOR ACTIVITY See what is going on with your Raspberry Pi. CPU, Memory, Temperature, Disk Usage, and Clock activity are shown in beautiful and easily understandable graphs. CONTROL Run commands on your Pi with a single tap. Want to have your own commands? No problem. SimplePi lets you add as many commands as you wish. Additionally, you can manage your commands in groups. TERMINAL SHELL Access your Pi from a shell terminal with colored output and hardware keyboard support. The on-screen keyboard comes with fast access to commonly used special keys like ctrl and arrow keys. WIDGETS Monitor your Pi and run commands right from the Home Screen with various widgets. VIEW COMMAND RESULTS View and export command results and logs automatically. The results history allows you to view the results of previous commands. DETAILED STATS Detailed Stats for CPU and Memory give you an insight on which processes are running, how much memory is active, and much more. FILE BROWSER Browse Files and Folders in a file browser-like experience. View and export files of various formats. MANAGE MULTIPLE PI SimplePi can manage multiple Raspberry Pi. Configure each Raspberry Pi and connect to them simultaneously. KEY AUTHENTICATION Public Key authentication gives you the flexibility to authenticate in your preferred way. Key files can be imported via iTunes or from other apps. ICLOUD SYNC Sync Commands, Hosts, Keys over iCloud APP LOCK Lock the app using FaceID, TouchID, or a custom passcode HOME SCREEN WIDGETS Run commands directly from your Home Screen on iOS 14 Siri Shortcuts Integrate commands into automated worflows using the Shortcuts app (requires iOS14 or later) NOTE: SSH needs to be enabled on your Raspberry Pi for SimplePi to work correctly. SimplePi has been tested with the latest releases of * Raspberry Pi OS (formerly Raspbian) * Raspbmc * OpenElec * Xbian * Pidora * Arch Linux SimplePi works on all Raspberry Pi models. NOTE (only for Xbian users): Automatic start of xbian-config needs to be disabled. You can do this when connecting via SSH and selecting Config > Settings > Xbian Config > NO. There are many different configurations out there. If you encounter problems with one of the distributions above or want to have your distribution support, please contact us.

About

PDF Diet Mobile

Read full description

PDF Diet is a fast, privacy-first PDF utility for iPhone and iPad. Compress large, image-heavy documents, clean up pages, and optimize files for sharing—all directly on your device. Why PDF Diet * Fully on-device: no uploads, no cloud, your files stay private * Instant results: quick compression and edits without waiting * Simple UI: focused tools that do the job fast Core Features * Compress PDFs – Reduce file size for email, messengers, and storage * Remove Pages – Delete unwanted pages before sharing * Optimize Files – Clean and streamline documents for better performance * Share Anywhere – Export to Mail, Messages, AirDrop, or any app Use Cases * Send large reports without hitting attachment limits * Save storage on your device * Clean up documents before sending to clients or teammates Built for speed and simplicity, PDF Diet helps you handle PDFs on the go with zero friction.

Screenshots

SimplePi for Raspberry Pi4 screens
PDF Diet Mobile4 screens

Verdict

The call

The clearest difference is price: SimplePi for Raspberry Pi at Free against PDF Diet Mobile's $1.99. PDF Diet Mobile's advantage is in-app purchases (none vs 1). On update cadence, 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

SimplePi for Raspberry Pi is free to download; PDF Diet Mobile costs $1.99 up front. SimplePi for Raspberry Pi sells 1 in-app purchase, starting at $4.99 per year. PDF Diet Mobile asks for nothing beyond the download.

UpkeepUpdate frequency

SimplePi for Raspberry Pi ships an update every 8 days, PDF Diet Mobile weekly. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
SimplePi for Raspberry Pi versus PDF Diet Mobile: the parameters behind the verdict, then further details
ParameterSimplePi for Raspberry PiPDF Diet Mobile
PriceFree — better$1.99
Rating3.9 (125 ratings) — better—
Positive reviews25.7% of reviews—
Number of ratings125 — better—
Update frequencyEvery 8 daysWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.1
Further details — not scored
Size23 MB7 MB
Age rating4+4+
DeveloperBenedikt HirmerArtem Svitelskyi

Bugs and requests

SimplePi for Raspberry Pi

Reported bugs

13 issues
  • App refuses to connect after closing
  • Opening app redirects to paywall
  • Temporary fix for connection issues: remove host, force close, re-add
  • App crashes several times
  • Fails 50% of the time to display GPU, CPU, and temp settings
Show 8 more
  • Screen disappears when trying to navigate raspi-config
  • Cannot view output of continuously running commands
  • Continuously running commands abort when phone screen locks
  • App rejects credentials that other apps accept
  • Monitoring features do not work
  • App shows one-week free trial but requires subscription immediately
  • App doesn't stay connected, screens close and pop around
  • App rejects identical credentials that other PI apps accept

Requested features

5 requests
  • Allow commands to keep running when phone screen locks
  • Ability to view results log for commands
  • Option to remove added commands
  • Improve navigation for raspi-config
  • Store SSH private keys securely using iOS Keychain

PDF Diet Mobile

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

SimplePi for Raspberry Pi

Subscriptions1
  • Full Access (12 months)7 Days trial$4.991 Year
None

PDF Diet Mobile

No in-app purchases

Questions

Is SimplePi for Raspberry Pi free?
SimplePi for Raspberry Pi is free to download, with in-app purchases available.
Is PDF Diet Mobile free?
PDF Diet Mobile costs $1.99, with no in-app purchases.
Do SimplePi for Raspberry Pi or PDF Diet Mobile have ads?
Neither SimplePi for Raspberry Pi nor PDF Diet Mobile shows ads.
Which is updated more often, SimplePi for Raspberry Pi or PDF Diet Mobile?
SimplePi for Raspberry Pi ships an update every 8 days, and PDF Diet Mobile weekly. Most recently, SimplePi for Raspberry Pi was updated on October 16, 2026 and PDF Diet Mobile on October 11, 2026.

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