Comparison

Unit Converter vs Image Compressor | Reduce Size

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

Head to head
About

Unit Converter

Features
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Unit Converter: Offline is a fast and simple tool for converting units across 28 essential categories. All conversions update instantly on one screen and work fully offline. Features: โ€ข 28 unit categories supported โ€ข Instant auto-conversion โ€ข Works 100% offline โ€ข Copy results easily โ€ข Adjustable decimal rounding โ€ข Light & Dark mode โ€ข Custom accent color Designed for everyday and professional use with a clean, reliable interface.

About

Image Compressor | Reduce Size

Features
Read full description

Shotcom is the fast, cleanest image compressor on iOS. Shrink any photo to a fraction of its original size without losing quality, share smaller files instantly, and free up storage in seconds. โ€” COMPRESS PHOTOS, KEEP QUALITY โ€” Shrink JPEG, PNG, and HEIC images by up to 80% while keeping them crisp and clear. Shotcom's advanced compression engine preserves fine detail, color accuracy, and sharpness, so your compressed photos still look great. No blurry thumbnails. No pixelated results. Just smaller files that still look sharp. โ€” FREE UP STORAGE FAST โ€” Running low on space? Compress your entire photo library in minutes. Batch processing lets you select dozens of photos at once and shrink them all simultaneously, recovering gigabytes without touching each file manually. Stop deleting photos just to free up space. Compress them instead. โ€” BUILT FOR SHARING โ€” Every platform has a file size limit. Shotcom makes sure you're never held back. - WhatsApp and iMessage: send photos faster without compression artifacts - Instagram and TikTok: upload optimized images that load quicker - Email: send photo attachments without hitting size limits - Websites and cloud storage: upload smaller files in less time - AirDrop: transfer compressed photos instantly โ€” BATCH PROCESSING โ€” Compress multiple photos at once with a single tap. Select your whole camera roll, choose your quality setting, and let Shotcom handle the rest. Perfect for photographers, bloggers, and anyone working with large volumes of images. โ€” FLEXIBLE QUALITY CONTROL โ€” Not every photo needs the same treatment. Shotcom gives you: - A manual quality slider for fine-tuned control - Smart Auto mode for quick, optimized compression - Live preview to compare compressed vs. original before saving - File size estimate before you export Dial in the exact quality-to-size ratio you need. โ€” FORMAT SUPPORT โ€” Supports JPEG, JPG, PNG, HEIC, and more. โ€” PRIVACY FIRST โ€” Shotcom processes everything on your device. Your photos never leave your iPhone. No uploads to external servers, no account required, no data collection. โ€” CLEAN AND FAST โ€” - Instant compression with live preview - Clean, minimal interface - Save directly to your photo library or Files - Share from within the app in one tap - No complicated settings Whether you're a photographer, content creator, freelancer, or just trying to free up space on your iPhone, Shotcom gives you the fastest, most reliable image compression on iOS. Download Shotcom and start compressing smarter today.

Screenshots

Unit Converter4 screens
Image Compressor | Reduce Size4 screens

Verdict

The call

Unit Converter and Image Compressor | Reduce Size are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Unit Converter versus Image Compressor | Reduce Size: the parameters behind the verdict, then further details
ParameterUnit ConverterImage Compressor | Reduce Size
PriceFreeFree
Update frequencyEvery 4 monthsโ€”
AdsYesYes
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS18.217.6 โ€” better
Further details โ€” not scored
Size36 MB9 MB
Age rating4+17+
DeveloperEmad AlhalabiHritik Arthur

In-app purchases

None

Unit Converter

No in-app purchases

None

Image Compressor | Reduce Size

No in-app purchases

Questions

Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Is Image Compressor | Reduce Size free?
Image Compressor | Reduce Size is free to download, with no in-app purchases.
Do Unit Converter or Image Compressor | Reduce Size have ads?
Both Unit Converter and Image Compressor | Reduce Size show ads.

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