Comparison

Audio Converter vs Signature Creator

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

Head to head
About

Audio Converter

Easily extract audio from videos, convert between various formats, and perform advanced audio editing tasks like trimming, merging, and noise reduction. Enhance your audio with effects and background music.

Highlights
  • Extract audio from videos
  • Convert between audio formats (MP3, WAV, AAC, FLAC)
  • Trim and merge audio clips
  • Adjust volume and reduce noise
  • Add background music
  • Apply fade in/out effects
Features
Read full description

Audio Converter is a powerful and easy-to-use tool for extracting, converting, and editing audio files. Whether you need to extract audio from a video, change formats, trim or merge clips, this app has you covered. [Key Features & Use Cases] Video to Audio: Extract audio from videos to save movie dialogues, music tracks, or background sounds for separate use or editing. Format Conversion: Convert between MP3, WAV, AAC, FLAC, and other formats to ensure compatibility with different devices and software. Extract Instrumental: Separate instrumental tracks from vocals, ideal for creating karaoke tracks or music remixes. Extract Vocals: Isolate vocals from audio files, perfect for podcasts, voiceovers, and transcription needs. Audio Trimming: Cut and trim audio clips precisely, useful for creating ringtones, extracting key segments, or shortening long recordings. Audio Merging: Seamlessly combine multiple audio files, suitable for making playlists, audiobooks, or custom music tracks. Volume Adjustment: Increase or decrease volume levels to match different playback environments and enhance listening experiences. Noise Reduction: Remove background noise for clearer sound quality, ideal for improving recordings and voice memos. Add Background Music: Mix background music into your audio files, perfect for video soundtracks, advertisements, and podcasts. Fade In & Fade Out: Apply smooth transitions with fade-in and fade-out effects for a more natural audio experience. With Audio Converter, you can process audio effortlessly, whether for everyday use or professional production. Download now and enjoy advanced audio editing features! [Auto-Renewal Terms] We offer auto-renewable subscription services for 1 week, 1 month, and 12 months. • Payment: Payment will be charged to your iTunes account after confirmation of purchase. • Renewal: Subscriptions with a free trial will automatically renew to a paid subscription after the trial ends. The payment will be deducted from your iTunes account 24 hours before the current subscription period ends. Renewal charges are based on the selected subscription plan. After successful payment, the subscription period will automatically extend for another cycle. • Cancel Renewal: To cancel renewal, please turn off the auto-renewal feature at least 24 hours before the current subscription period ends via your iTunes/Apple ID settings. After that, no renewal fees will be charged. User Agreement: http://oss.qingchengkeji.vip/h5/audioCut/user.html Privacy Policy: http://oss.qingchengkeji.vip/h5/audioCut/privacy.html Subscription Agreement: http://oss.qingchengkeji.vip/h5/audioCut/subscribe.html

About

Signature Creator

Easily add professional signatures and fill out PDF forms directly on your device. Capture your signature by drawing it or scanning a handwritten one. Signatures are securely backed up and synced across your devices.

Highlights
  • Fill PDF forms
  • Add digital signatures
  • Scan handwritten signatures
  • Draw custom signatures
  • Secure iCloud backup
  • Export signatures to Photos
Features
Read full description

SigPDF makes it easy to fill out and add professional signatures to documents. You can either scan a hand-drawn signature or draw a signature in the app. No sign-in is required. Fill out forms: Quickly fill out PDF forms with the built-in editor. Sign documents: Add your signature to documents, no printing required. Scan your signature: Snap a picture or choose from Photos. Draw your signature: You can adjust pen type, thickness and color. Signatures are backed up: Your signatures are backed up securely in your iCloud and synchronized across your devices. Export signatures: You can save signatures to Photos if you need to use them in a different app. If you have any suggestions on how to improve SigPDF, feel free to contact App Support. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Audio Converter4 screens
Signature Creator4 screens

Verdict

The call

The clearest difference is rating: Audio Converter at 5.0 against Signature Creator's 4.5. Audio Converter also leads on iOS requirement (15.0 vs 17.6). Signature Creator's advantage is update cadence (weekly vs monthly) and ratings volume (21 vs 1). On price, ads, in-app purchases and monetization model 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. Audio Converter sells 4 in-app purchases, starting at $2.99 per 7 days and Signature Creator sells 2 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Audio Converter holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Signature Creator has 21 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Audio Converter ships an update monthly, Signature Creator weekly. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 5 level
Audio Converter versus Signature Creator: the parameters behind the verdict, then further details
ParameterAudio ConverterSignature Creator
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (21 ratings)
Number of ratings121 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size60 MB13 MB
Age rating4++4
Developer珮辰 赵Havard Tryman

Customer experience

Audio Converter

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

Signature Creator

All ratings21 ratings
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

4 purchases

Audio Converter

Subscriptions3
  • Weekly Subscription7 Days trial$2.997 Days
  • Monthly Subscription$4.991 Month
  • Annual Subscription$14.991 Year
One-time1
  • Permanent Member$24.99
2 purchases

Signature Creator

Subscriptions2
  • Pro3 Days trial$8.997 Days
  • Pro$24.991 Year

Questions

Is Audio Converter free?
Audio Converter is free to download, with in-app purchases available.
Is Signature Creator free?
Signature Creator is free to download, with in-app purchases available.
Which has better reviews, Audio Converter or Signature Creator?
Audio Converter is rated higher. Audio Converter averages 5.0 out of 5 from 1 ratings, while Signature Creator averages 4.5 from 21 ratings.
Do Audio Converter or Signature Creator have ads?
Neither Audio Converter nor Signature Creator shows ads.
Which is updated more often, Audio Converter or Signature Creator?
Audio Converter ships an update monthly, and Signature Creator weekly. Most recently, Audio Converter was updated on September 17, 2026 and Signature Creator on September 20, 2026.

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