Comparison

a vs Resolutioner

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

Head to head
About

a

Run Unix commands locally on your iOS device with a powerful terminal emulator. Supports file transfer, editing, scripting with Python and Lua, and network utilities. Integrates with Shortcuts and supports multiple windows for multitasking.

Highlights
  • Local Unix terminal emulator
  • SSH client
  • File transfer (scp, curl)
  • Text editing (vim, ed)
  • Scripting (Python, Lua, JavaScript)
  • Network utilities (nslookup, ping)
  • Shortcuts integration
  • Multi-window support
Features
Read full description

a-Shell mini is a complete local terminal emulator, allowing to run most Unix commands on you iOS device. You can transfer files using scp and curl, edit them with vim and ed, process them using grep, awk and sed. Work with git repositories using lg2. Most commands are compiled for iOS native Arm64 format, making them fast and well integrated with iOS underlying BSD Unix. a-Shell mini includes Python, Lua, JavaScript and webAssembly for programming and scripting. It also includes native ffmpeg and convert for fast image and video conversion. There are also multiple network utilities: nslookup, ping, whois, ifconfig... Type help for help, help -l to get the full list of commands. a-Shell mini can be controlled from Shortcuts: run commands in order, process files in a-Shell, get the results as text or files, transfer files to other apps... a-Shell mini uses iPadOS 13+ “multiple windows” ability, so you can run multiple shells at the same time, with different commands, in different directories. You can edit a file in one window with vim and process it in the other with python. a-Shell mini is a minimalist terminal, designed to have a very small footprint (less than 250 MB). If you need more commands, please consider a-Shell, which has more Python packages, more JavaScript modules, Perl, make, a C and C++ compiler and TeX.

About

Resolutioner

This utility app helps you calculate and scale screen resolutions based on aspect ratios. Save and manage your frequently used resolutions for easy access. Sync your presets across Apple devices.

Highlights
  • Calculate resolutions by filling in one side
  • Edit aspect ratios easily
  • Scale resolutions up or down
  • Save and name custom resolution presets
  • Edit saved presets
  • Sync presets via iCloud
Read full description

Resolutioner by Sun Apps is a simple utility app for calculating and scaling resolutions and aspect ratios. You can input an aspect ratio and calculate a resolution based on it, or you can input a resolution and scale it up or down. For quick reference, you can save an aspect ratio to your Saved Presets, and load it back into the calculator with just one tap. NO ADS OR PREMIUM FEATURES The price you see is the price you pay. There are no ads, premium features, subscriptions, or anything else. And since we don’t collect any data, there’s no data for us to sell! If you really love the app, you can donate via the Tip Jar option (that’s the in-app purchases the App Store shows). SHORTCUTS SUPPORT Resolutioner extends all of its functionality to the Shortcuts app, so you can calculate resolutions, scale resolutions, and determine aspect ratios in Shortcuts or with Siri AI. You can also view, create, and manage your Saved Presets. INTERFACE You can choose from two great interface options, Unified or Split. Unified puts the calculator and Saved Presets on one page, while Split puts them side-by-side or into tabs, depending on screen/window size. You can also turn the theme color on or off, as well as toggle between a monospaced and a standard font design. DESIGNED FOR iOS AND iPadOS Resolutioner has been designed with Liquid Glass in mind, and works great across iPhone, iPad, Mac, and Apple Vision Pro! - Full support for Dark, Tinted, and Clear Home Screen modes - Full multitasking support: multi-window support, keyboard shortcuts, full cursor support, Slide Over + Split View, and more - Choose from five app icon designs - Fully updated for Liquid Glass - iCloud sync support - Dynamic text support

Screenshots

a4 screens
Resolutioner4 screens

Verdict

The call

The clearest difference is price: a at Free against Resolutioner's $0.99. a also leads on in-app purchases (none vs 5) and update cadence (every 2 weeks vs every 33 months). Resolutioner's advantage is chart position (#2 vs #68) and ratings volume (946 vs 120). On rating, review sentiment, ads 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

a is free to download; Resolutioner costs $0.99 up front. Resolutioner sells 5 one-off in-app purchases. a asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for a against 4.5 for Resolutioner. That said, the two scores are not equally well evidenced: Resolutioner has 946 ratings behind it against 120, so its average is the more settled of the two. Written reviews are what separate them: 78% of a's written reviews are positive against 80% of Resolutioner's.

UpkeepUpdate frequency

a ships an update every 2 weeks, Resolutioner every 33 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard7 real differences · 4 level
a versus Resolutioner: the parameters behind the verdict, then further details
ParameteraResolutioner
PriceFree — better$0.99
Rating4.6 (120 ratings) — better4.5 (946 ratings)
Positive reviews77.8% of reviews79.6% of reviews — better
Number of ratings120946 — better
Update frequencyEvery 2 weeks — betterEvery 33 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#68#2 — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Vision Pro — better
Requires iOS14.0 — better17.0
Further details — not scored
Size373 MB40 MB
Age rating17+4+
DeveloperNicolas HolzschuchSun Apps, LLC

Customer experience

a

All ratings120 ratings
Positive90.0%
Neutral2.5%
Negative7.5%
Written reviews90 reviews
Positive77.8%
Neutral5.6%
Negative16.7%

Resolutioner

All ratings946 ratings
Positive86.2%
Neutral3.3%
Negative10.6%
Written reviews93 reviews
Positive79.6%
Neutral7.5%
Negative12.9%

User reviews

a

From 120 App Store ratings

What we love

  • 👍 Great app for shortcuts
  • 🚀 Efficient and functional
  • 💡 Useful for IT tasks
  • ✨ Free and awesome
  • 💻 Good for remote server connection

Room to improve

  • 🐛 Font size not adjustable
  • 🐛 Keyboard icons too large
  • 🐛 App deletes itself
  • 🐛 Rotating screen scrambles display
  • 🐛 Pasting text shows strange characters

Resolutioner

From 946 App Store ratings

What we love

  • 👍 Very good app
  • 👍 Excellent for calculations
  • 👍 Useful for graphic designers
  • 👍 Works offline
  • 👍 Good for Free Fire

Room to improve

  • 🐛 Resolution not changing
  • 🐛 App doesn't work
  • 🐛 Buggy and bad
  • 🐛 Cannot submit resolution
  • 🐛 Screen size remains the same

Bugs and requests

a

Reported bugs

12 issues
  • Keyboard icons comically large
  • App deletes itself
  • Rotating iPhone/iPad scrambles display
  • Pasting text results in strange characters
  • App only uses half of the screen when editing files
Show 7 more
  • Command not found errors for all commands
  • App crashes on launch after update
  • Cannot get own absolute path
  • Cannot execute own programs
  • App messes up .txt file association
  • Trouble selecting characters to copy and paste
  • No module named requests in shortcuts

Requested features

8 requests
  • Option to use old keyboard buttons
  • Add openssl support
  • Add libx265 codec for ffmpeg
  • Support telnet command
  • Add possibility to compile from source
Show 3 more
  • Make Ubuntu default
  • Add expansion of keys (e.g., echo {a..z})
  • Adjustable font size

Resolutioner

Reported bugs

8 issues
  • Resolution does not change
  • App does not work
  • Screen size remains the same
  • App is buggy
  • Cannot submit resolution
Show 3 more
  • Does not change FOV
  • Lagging device
  • Resetting issues

Requested features

4 requests
  • Add sync to device option
  • Add button to improve/submit resolution
  • Allow reordering of presets for better organization
  • Ability to use created scales in computer settings

In-app purchases

None

a

No in-app purchases

5 purchases

Resolutioner

One-time5
  • Tip Jar - $0.99$0.99
  • Tip Jar - $1.99$1.99
  • Tip Jar - $2.99$2.99
Show 2 more
  • Tip Jar - $4.99$4.99
  • Tip Jar - $9.99$9.99

Questions

Is a free?
a is free to download, with no in-app purchases.
Is Resolutioner free?
Resolutioner costs $0.99, and also offers in-app purchases.
Which has better reviews, a or Resolutioner?
a is rated higher. a averages 4.6 out of 5 from 120 ratings, while Resolutioner averages 4.5 from 946 ratings.
Do a or Resolutioner have ads?
Neither a nor Resolutioner shows ads.
Which is updated more often, a or Resolutioner?
a ships an update every 2 weeks, and Resolutioner every 33 months. Most recently, a was updated on October 4, 2026 and Resolutioner on October 6, 2026.
Which is more popular, a or Resolutioner?
a currently peaks at #68 in the App Store charts, and Resolutioner at #2. Chart position reflects recent download velocity rather than total install base.

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