Comparison

Formatter vs MP3 Converter

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

Head to head
About

Formatter

This utility app transforms messy JSON data into a clean, readable format. It eliminates the frustration of scrolling and eye strain associated with poorly formatted code, simplifying data analysis.

Highlights
  • Seamless JSON formatting
  • Transforms unruly JSON
  • Clean, human-readable output
  • Simplifies data analysis
Read full description

Are you tired of wrangling messy JSON data? Frustrated by the endless scrolling and eye-straining formatting? Say goodbye to the headache and hello to simplicity with our JSON Formatter App! Seamless JSON Formatting: Our app takes your unruly JSON data and effortlessly transforms it into a clean, human-readable format. No more squinting at the screen, trying to make sense of tangled code!

About

MP3 Converter

This app is a comprehensive audio editing tool that allows for easy conversion between various audio formats, extraction of audio from videos, and precise trimming of music for ringtones. It offers batch processing and speed adjustment for efficient audio manipulation.

Highlights
  • Convert between 18 audio formats
  • Extract audio from videos
  • Millisecond-accurate audio trimming
  • Batch audio processing
  • Adjust export playback speed
  • Import from multiple sources
Features
Read full description

Your all‑in‑one audio toolbox Effortlessly handle audio conversion, video‑to‑audio extraction, and ringtone creation. Whether it’s MP4 to MP3 or trimming music, enjoy a clean, efficient workflow. Core features at a glance: Format Conversion (Core): Convert freely across 18 popular formats, including MP3, M4A, WAV, and FLAC—no limits. Video Extraction: Pull audio from videos and quickly turn MP4 into MP3 or other formats. Audio Trimming: Millisecond‑accurate cuts; drag to select segments and create custom ringtones or music clips. Batch Processing: Batch import, convert, and export to supercharge efficiency. Speed Export: Adjust playback speed from 0.5x to 2x on export. Multiple Import Sources: Import from Photos, Files, iCloud Drive, and more. Why choose us? Radical simplicity, built for efficiency 100% on‑device processing for privacy and speed Easy library management with “Recent Works” for quick re‑edit and share We’re committed to being your most reliable audio assistant, with continuous updates and powerful new features. Privacy Policy: https://imailu.notion.site/audio-converter-privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Formatter1 screens
MP3 Converter4 screens

Verdict

The call

The clearest difference is in-app purchases: Formatter at none against MP3 Converter's 3. MP3 Converter's advantage is update cadence (weekly vs every 2 months). On price, rating, ratings volume and ads 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. MP3 Converter sells 3 in-app purchases, starting at $0.99 per month. Formatter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Formatter against 5.0 for MP3 Converter. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Formatter ships an update every 2 months, MP3 Converter weekly. The most recent releases landed on June 4, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
Formatter versus MP3 Converter: the parameters behind the verdict, then further details
ParameterFormatterMP3 Converter
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.0 — better17
Further details — not scored
Size19 MB47 MB
Age rating4+4+
DeveloperMew Sang Lim应芳 卢

Customer experience

Formatter

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MP3 Converter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Formatter

No in-app purchases

3 purchases

MP3 Converter

Subscriptions2
  • Monthly$0.991 Month
  • Annual$2.991 Year
One-time1
  • Lifetime$9.99

Questions

Is Formatter free?
Formatter is free to download, with no in-app purchases.
Is MP3 Converter free?
MP3 Converter is free to download, with in-app purchases available.
Which has better reviews, Formatter or MP3 Converter?
Formatter and MP3 Converter are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Formatter or MP3 Converter have ads?
Neither Formatter nor MP3 Converter shows ads.
Which is updated more often, Formatter or MP3 Converter?
Formatter ships an update every 2 months, and MP3 Converter weekly. Most recently, Formatter was updated on June 4, 2026 and MP3 Converter on September 9, 2026.

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