Comparison

OffOf vs Batch Image Converter

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

Head to head
About

OffOf

This app simplifies percentage calculations for shopping discounts and finding a percentage of a number. It offers a clean interface with satisfying sound and haptic feedback for a delightful user experience.

Highlights
  • Calculate percentage OFF
  • Calculate percentage OF
  • Shopping discount calculations
  • Mechanical keyboard sounds
  • Haptic feedback
Features
Currently charting
Read full description

A beautiful percentage calculator. OffOf helps you calculate to percentage OFF of a particular number, and the percentage OF a particular number. OffOf is NOT a full calculator. Your device already comes with a great calculator. OffOf is a Percentage Calculator ONLY. • 35% OFF Instantly know how much you're going to spend while shopping. What is the cost of that $18.99 t-shirt when its 35% off? OffOf makes it easy to calculate. Simply enter 35% as the "Percentage" and 18.99 as the "Amount" and OffOf will show you how much you'll be spending after the discount. • 16% OF What is 16% of 2,458? OffOf will get you that answer instantly. Just enter 16% as the "Percentage" and 2,458 as the "Amount" and you'll know right away. • Real, satisfying mechanical keyboard sounds • Delightful haptic feedback on button presses and more

About

Batch Image Converter

Easily convert HEIC, JPEG, PNG, and WebP images in batches directly on your iPhone. This app offers a one-time purchase with no subscriptions or ads, ensuring all your photos remain private on your device. It supports various input and output formats, quality adjustments, resizing, and EXIF data removal.

Highlights
  • Batch conversion of multiple image formats
  • On-device processing for privacy
  • One-time purchase, no subscriptions or ads
  • Quality adjustment with live preview
  • Image resizing presets and custom options
  • One-tap EXIF data removal
  • Integration with Shortcuts and Siri
Features
Read full description

Buy once. No subscription. No ads. No surprise charges later. Batch-convert HEIC, JPEG, PNG, and WebP right on your iPhone — every photo stays on your device. Built for people fed up with "Free" converters that hit you with a subscription the moment you tap Convert. WHAT IT DOES Pick photos from your library or the Files app, choose an output format, and tap Convert. Every image is processed right on your iPhone — no upload, no account, nothing to sign in to. Review each result and its file size, then save the ones you want to Photos. BUILT FOR BATCHES Convert a single photo or a long list of them in one tap. Image Converter is built to power through large batches smoothly, so you spend less time waiting and more time on whatever you actually wanted to do with the photos. YOUR PHOTOS STAY ON YOUR PHONE Image Converter only sees the photos you hand-pick — nothing else in your library. Every conversion happens on your iPhone, so your originals never get uploaded anywhere. HONEST PRICING One payment. Every feature. Forever. No monthly fee waiting inside. No "upgrade to unlock batch." No full-screen ad after each conversion. The price you see on the App Store is the only price you will ever pay. EVERYTHING YOU NEED • Inputs: HEIC/HEIF, JPEG, PNG, WebP, GIF, BMP, TIFF, TGA • Outputs: JPEG, PNG, WebP • Quality slider with a live preview of the resulting file size • Resize presets (2000 / 1200 / 800 px long edge) plus a custom value • One-tap EXIF removal — strip location, camera, and date info before posting or listing • File size shown for every result, handy for marketplaces with strict upload limits • Save to Photos, or share via AirDrop, Files, Mail, and any share-sheet app • Conversion history so you can look back at what you've done • Files app import for images that aren't in your photo library WORKS WITH SHORTCUTS & SIRI Image Converter plugs into the Shortcuts app, so you can build your own one-tap routines and run them with a tap on your home screen — or just by asking Siri. Three actions are available: • Convert Images — choose the output format, quality, and size, and optionally strip EXIF; works on whole batches • Get Image Info — read a photo's format, dimensions, file size, and EXIF status, so your shortcut can decide what to do next • Strip EXIF — remove location, camera, and date info without changing the format For example: "take these photos, convert to JPEG, resize to 1200 px, remove the location data, and save." MADE FOR REAL JOBS • Etsy and marketplace sellers preparing iPhone HEIC photos for product listings • Roblox shirt makers and DTF print creators preparing artwork • Anyone uploading to a forum or sending to a printer that won't accept HEIC • People moving on from "Free" converters that turned into subscriptions If a converter should just convert — no ads, no subscription, no uploads — this is the one.

Screenshots

OffOf3 screens
Batch Image Converter4 screens

Verdict

The call

The clearest difference is review sentiment: Batch Image Converter at 100% against OffOf's 61%. OffOf's advantage is price ($0.99 vs $4.99) and chart position (#129 vs unranked). 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

OffOf costs $0.99 and Batch Image Converter $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard6 real differences · 5 level
OffOf versus Batch Image Converter: the parameters behind the verdict, then further details
ParameterOffOfBatch Image Converter
Price$0.99 — better$4.99
Rating4.6 (11 ratings) — better—
Positive reviews60.7% of reviews100.0% of reviews — better
Number of ratings11 — better—
Update frequencyEvery 59 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#129 — better—
DevicesiPhone, iPad, Mac, Apple Watch, Vision Pro — betteriPhone
Requires iOS17.2 — better26.0
Further details — not scored
Size5 MB10 MB
Age rating4+4+
DeveloperDaeo Corp. SoftwareShunei Hayakawa

Customer experience

OffOf

All ratings11 ratings
Positive81.8%
Neutral18.2%
Negative0.0%
Written reviews107 reviews
Positive60.7%
Neutral14.0%
Negative25.2%

Batch Image Converter

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

OffOf

Reported bugs

3 issues
  • Not compatible with new iOS updates
  • App no longer opens/works
  • Freezes and force closes

Requested features

5 requests
  • Make it a fully functional calculator
  • Update to new software/iOS versions
  • Show final price after discount
  • Auto clear fields on tap
  • Update for X screens

Batch Image Converter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

OffOf

No in-app purchases

None

Batch Image Converter

No in-app purchases

Questions

Is OffOf free?
OffOf costs $0.99, with no in-app purchases.
Is Batch Image Converter free?
Batch Image Converter costs $4.99, with no in-app purchases.
Do OffOf or Batch Image Converter have ads?
Neither OffOf nor Batch Image Converter shows ads.

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