Comparison

Auto Audio vs Md Preview

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

Head to head
About

Auto Audio

Features
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The app will provide 8 solutions for recording the sound. 1 Record from Apple Watch. In Watch OS 5, could record the sound when the watch screen is off. When this App records the sound in the background in Apple Watch, sometime, a red icon of microphone will be displayed at the top middle of Watch Screen. That means, this App is recording the sound in the background status. Just tap this red icon, this App will be displayed again. After finishing the recording, the record file will be transferred to the iPhone automatically. In iPhone, when we tap the file folder icon on the top left corner in the main tab controller, the file from watch will be displayed. In Watch App, tap the table cell, the detail of the record sound will be displayed. We will see a transfer button. If we need to transfer the record file to iPhone again, please tap this button. 2.Auto: When this App is inactive, just tap this App icon, this App could record the sound automatically.When you need to record the sound as soon as possible, you may like this solution. If you need to get this solution, just make the fast tab page appear before you press the home key. 3 Intelligent: this App could start recording the sound when the pitch level of sound is over the indicted level of starting record. It could stop recording when the pitch level of sound is below the indicted level of stopping record. If you need to record the sound when it is higher than some pitch level, just make the intelligent tab page appear. 4 Gesture: gesture double tap or pinch could create the different size sound files. The larger size is more qualified. The smaller size could save the disk space and the sound is also qualified. If you need to use this solution, just make the gesture tab page appear. 5 Proximity: Cover the top part of the iPhone screen , this App will record the sound. Cover the iPhone screen again, this App will stop recording. In some situation, you do not want to tap the device screen, then this solution is yours. For example, you could use one book to cover the top part of the iPhone screen, or use your hands, your clothes,and even use your face.If you need to use this solution, just make the proximity tab page appear. 6 Delay the action : delay the recording after 0 - 30 seconds. In some situations, you want to record the sound after a little time, then this solution may help you.If you need to use this solution, just make the timer tab page appear. 7 Standard recording the sound, if you just want to record the sound by tapping the button directly, this App is yours. Just make the timer tab page appear, ensure the delay is zero second, and tap the button of Record One Audio Clip. 8 Repeat recording. Some times, you may need to record the sound files after the indicted duration. In the timer tab page, tap the button - record the audio by interval. In iPhone or iPad, this App could also continue recording the sound in the background. You could set your preferences. So tap the button at the upper right corner of the main view, you could set your own preferences from the setting view. These preferences includes the max duration of the sound file, the sound pitch level for start record and stopping record. You could also indict whether enable the background record when this App is inactive. After the file is created, you could send the sound file by email account in your device.By using the iTune File Sharing features, you could export the record sound to the iTune computer such as Mac PC. Tap the To iCloud button, the new view will display the item : iCloud Drive, tap this item to export the file to iCloud. In the main view, just tap the upper left button, you could view the file folder, the sound file size and sound duration will be displayed. The user could rename the sound file. You could play the sound file according to your needs.

About

Md Preview

View your Markdown files with exceptional clarity on iPhone and iPad. Supports all Markdown features, code syntax highlighting, LaTeX math, and Mermaid diagrams. Renders files offline and integrates with other apps.

Highlights
  • Full GFM support (tables, task lists, footnotes)
  • Syntax highlighting for 40+ programming languages
  • LaTeX math rendering with KaTeX
  • Mermaid diagram support
  • Offline rendering on-device
  • System file handler for .md files
  • Dark mode with automatic theme switching
Features
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Md Preview renders your Markdown files with stunning clarity — right on your iPhone or iPad. Open any .md file from ChatGPT, Obsidian, Notion, GitHub, or 100+ other apps. Md Preview instantly shows a beautiful, fully-rendered preview with support for every Markdown feature you need. FEATURES • Full GFM Support — Tables, task lists, footnotes, strikethrough, and autolinks • Syntax Highlighting — 40+ programming languages beautifully colored • LaTeX Math — Inline and display equations powered by KaTeX • Mermaid Diagrams — Flowcharts, sequence diagrams, pie charts, and more • Dark Mode — Automatic theme switching that follows your system setting • 100% Offline — All rendering happens on-device. No data ever leaves your phone • Open From Anywhere — Works as a system file handler for .md files from any app • File History — Quickly reopen recent files with one tap • Share Extension — Receive Markdown files shared from other apps SUPPORTED FORMATS .md, .markdown, .mdown, .mkd, .mkdn, .mdwn, .mdtxt, .mdtext, .mdx, .rmd, .qmd Md Preview is the fastest way to read Markdown on iOS. No editing, no clutter — just a clean, beautiful preview.

Screenshots

Auto Audio4 screens
Md Preview3 screens

Verdict

The call

The clearest difference is update cadence: Md Preview at every 3 days against Auto Audio's every 4 weeks. Auto Audio's advantage is price ($0.99 vs $2.99) and device support (4 vs 2). On ads and in-app purchases 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

Auto Audio costs $0.99 and Md Preview $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Auto Audio ships an update every 4 weeks, Md Preview every 3 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Auto Audio versus Md Preview: the parameters behind the verdict, then further details
ParameterAuto AudioMd Preview
Price$0.99 — better$2.99
Rating—4.4 (5 ratings) — better
Positive reviews—71.4% of reviews
Number of ratings—5 — better
Update frequencyEvery 4 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size4 MB4 MB
Age rating4+4+
Developer方 沈CyberGame Limited

In-app purchases

None

Auto Audio

No in-app purchases

None

Md Preview

No in-app purchases

Questions

Is Auto Audio free?
Auto Audio costs $0.99, with no in-app purchases.
Is Md Preview free?
Md Preview costs $2.99, with no in-app purchases.
Do Auto Audio or Md Preview have ads?
Neither Auto Audio nor Md Preview shows ads.
Which is updated more often, Auto Audio or Md Preview?
Auto Audio ships an update every 4 weeks, and Md Preview every 3 days. Most recently, Auto Audio was updated on October 19, 2026 and Md Preview on October 16, 2026.

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