PicResize vs AspectCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PicResize
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Photo or ID photo the wrong size? Resize any image to exactly the dimensions you need in just a few steps. Lock the aspect ratio and the other side updates automatically as you type, so you land on a compliant size fast — or turn on Crop and drag the box to choose exactly what to keep, up to the full original size. Export as JPG or PNG, with adjustable JPG compression quality, so you can keep images sharp while staying in control of file size. Everyday edits, ID photos, cropping a shot, or resizing before you upload — all done in seconds. Highlights Custom image resolution Lock aspect ratio to prevent distortion Crop freely — drag the box to choose the area to keep Export as JPG or PNG Adjustable JPG compression quality Save straight to your photo library — simple and direct, no limits
AspectCalc
This app helps photographers and designers calculate image dimensions and aspect ratios. It can detect ratios, solve for missing dimensions, scale sizes, and plan print outputs. It offers tools for cropping, fitting, and understanding image quality for various outputs.
- Detect and simplify ratios from pixel dimensions
- Solve for missing width or height
- Scale sizes by percentage
- Build batch output size sets
- Rank targets by crop/fit waste
- Calculate print dimensions and density
- Save reusable ratios and history
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AspectCalc is a focused dimension toolkit for photographers, designers, video editors and anyone who works with images. Detect a ratio from any pixel size, solve a missing dimension, scale one size or build a full output set. Compare common target ratios by the visual area lost to cropping or fitting. Pick the least waste option, choose one of nine focal anchors, and copy the exact crop origin and output dimensions. Print tools convert between pixels, inches and centimetres at any density and show a clear quality rating. WHAT YOU CAN DO * Detect and simplify a ratio from any whole pixel dimensions * Solve a missing width or height from any ratio * Use quick formats such as 16:9, 4:5, 1:1 and 2.39:1 * Scale a size by percentage while preserving its ratio * Build and copy a batch set of output sizes * Prepare six format delivery sets with exact source crops and final output pixels * Rank common targets by the least crop or fit waste * Place a crop using nine focal anchors * Plan exact safe rectangles with independent horizontal and vertical margins * Check megapixels, estimated memory, and a chosen pixel limit before export * Calculate print dimensions and effective pixel density * Plan print bleed, trim, safe areas and full canvas pixels * Save reusable ratios and calculation history * View personal usage insights * Export PDF spec sheets, CSV data and a validated local backup FREE AND PRO Ratio solving, detection and single size scaling are available free. AspectCalc Pro is a one time in app purchase that unlocks ratio comparison, crop and fit planning, focal anchors, batch size sets, print tools and professional exports. There is no subscription and no account is required. PRIVATE BY DESIGN Saved ratios, calculations and backups remain under your control on your device or in a file location you choose. AspectCalc includes no advertising, analytics or tracking.
Screenshots
Verdict
The clearest difference is update cadence: AspectCalc at every 3 days against PicResize's every 3 weeks. On price, ads, in-app purchases 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
Both are free to download. PicResize sells 1 one-off in-app purchase and AspectCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PicResize ships an update every 3 weeks, AspectCalc every 3 days. Both last shipped on October 31, 2026.
| Parameter | PicResize | AspectCalc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 姝婕 章 | InnovaLabWorks |
In-app purchases
PicResize
- Premium Membership (Lifetime)$1.99
AspectCalc
- AspectCalc Lifetime$3.99








