Comparison

SMS Instant vs Image PDF Converter

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

Head to head
About

SMS Instant

Receive SMS messages anonymously with temporary phone numbers. Protect your private number by using disposable digits for service registrations and urgent SMS needs. Get a new number each time you open the app.

Highlights
  • Disposable phone numbers
  • Receive registration messages
  • Anonymous SMS reception
  • No registration required
  • Secure private number protection
  • New number on each launch
Features
Read full description

You can easily get disposable phone number for SMS without registration. Disposable SMS phone numbers can be used to receive registration messages from Facebook, Twitter, Paypal, Alipay and more. It's very secure because you can receive messages without exposing your private phone number. [Useful at times like this] - When a temporary telephone number is required for trial registration of the service. - When you want to receive SMS anonymously. - When you need a phone number for SMS in a hurry. - When you want to receive a message without giving your private phone number. [Simple Usage] 1. A disposable SMS phone number is automatically assigned when the app starts. 2. Give the sender the disposable phone number. 3. You can receive the sent SMS messages while the app is running. 4. A different phone number will be assigned each time you launch the app. [Terms & Conditions] https://www.hayaya.net/terms-conditions/temporary-sms.html [Privacy Policy] https://www.hayaya.net/privacy-policy/temporary-sms.html

About

Image PDF Converter

Easily convert images between various formats, including HEIC from iPhones. Offers real-time previews, a built-in viewer, and seamless sharing. Optimized for speed and memory efficiency.

Highlights
  • Supports 7+ image formats
  • HEIC to JPG/PNG conversion
  • Real-time preview
  • In-app image viewer
  • Direct file sharing
  • Organized image gallery
Features
Read full description

Fast Image Format Conversion A simple and intuitive app for quick image format conversion, supporting a wide range of formats. Key Features • Supports 7 formats: JPG, PNG, GIF, BMP, TIFF, HEIC, WebP, ICO • HEIC support: Easily convert iPhone photos • Real-time preview: View files as 80x80 thumbnails • In-app viewer: Zoomable, high-quality image viewer • File sharing: Instantly share converted images with other apps • Gallery: Manage all converted images in one place How to Use Select image files (drag & drop or file picker) Choose the desired format Click "Convert" Done! Check your gallery Highlights • No permissions required – safe to use without external storage access • Fast conversion – optimized image processing engine • Beautiful design – Material 3 gradient UI • Multilingual – full support for Korean and English • Free to use – all core features included Supported Formats Input: JPG, PNG, GIF, BMP, TIFF, WebP, HEIC, ICO Output: JPG, PNG, GIF, BMP, TIFF, WebP, ICO Optimization • Fully compatible with latest iOS versions • Auto-compression for large files (50MB+) • Memory-efficient image processing • Battery optimization Recommended For • Designers working with various image formats • Users who want to convert iPhone photos to different formats • Web developers optimizing images for the web • Anyone looking for a simple image converter Download now and experience a new level of fast, simple image conversion!

Screenshots

SMS Instant4 screens
Image PDF Converter4 screens

Verdict

The call

The clearest difference is rating: Image PDF Converter at 5.0 against SMS Instant's 4.1. Image PDF Converter also leads on in-app purchases (none vs 2) and ads (none vs shown). SMS Instant's advantage is ratings volume (62 vs 1) and iOS requirement (12.0 vs 15.0). On price 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

Both are free to download. SMS Instant sells 2 in-app purchases, starting at $1.99 per month. Image PDF Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Image PDF Converter holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: SMS Instant has 62 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

SMS Instant ships an update every 5 months, Image PDF Converter every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
SMS Instant versus Image PDF Converter: the parameters behind the verdict, then further details
ParameterSMS InstantImage PDF Converter
PriceFreeFree
Rating4.1 (62 ratings)5.0 (1 ratings) — better
Positive reviews11.8% of reviews—
Number of ratings62 — better1
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size68 MB43 MB
Age rating4+4+
DeveloperHayato Shimizuzzari

Customer experience

SMS Instant

All ratings60 ratings
Positive75.0%
Neutral1.7%
Negative23.3%
Written reviews93 reviews
Positive11.8%
Neutral3.2%
Negative84.9%

Image PDF Converter

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

In-app purchases

2 purchases

SMS Instant

Subscriptions1
  • Premium (Monthly plan)$1.991 Month
One-time1
  • Premium (Buying out)$19.99
None

Image PDF Converter

No in-app purchases

Questions

Is SMS Instant free?
SMS Instant is free to download, with in-app purchases available.
Is Image PDF Converter free?
Image PDF Converter is free to download, with no in-app purchases.
Which has better reviews, SMS Instant or Image PDF Converter?
Image PDF Converter is rated higher. SMS Instant averages 4.1 out of 5 from 62 ratings, while Image PDF Converter averages 5.0 from 1 ratings.
Do SMS Instant or Image PDF Converter have ads?
SMS Instant shows ads; Image PDF Converter does not.
Which is updated more often, SMS Instant or Image PDF Converter?
SMS Instant ships an update every 5 months, and Image PDF Converter every 3 weeks. Most recently, SMS Instant was updated on November 3, 2026 and Image PDF Converter on October 30, 2026.

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