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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Pixlr | ImgUpscaler | Switch / compare |
|---|---|---|---|
| Background removal | 68/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
| Image upscaling | 88/100 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached | 85/100 2048×2048 (PNG · 400% / 4.0x AI Upscale) · Historical description; output not attached | Active task |
| Object removal | 90/100 2048×2048 (Native Full-Res No Watermark PNG/JPG/WebP) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
| Image generation | 92/100 1024×1024 (Unwatermarked PNG, 1.38MB) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
| Photo restoration | 69/100 JPEG · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Pixlr Express (Super Scale AI) Image upscaling 88/100 Seven-aspect task score 4× watermark-free export is fast with clear per-use credits, but free saves are limited to three per day and multiple video ads occupy the workspace. Tested export 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached Historical test · 2026-10-16 | ImgUpscaler (AI Image Upscaler) Image upscaling 85/100 Seven-aspect task score Free login-free 4× output retains detail well; a fullscreen ad can interrupt initial use, and this run took about 22 seconds. Tested export 2048×2048 (PNG · 400% / 4.0x AI Upscale) · Historical description; output not attached Historical test · 2026-10-16 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | All web monthly/annual tiers and five credit top-up packs · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Plus2026-10-20 ↗ USD 2.49/month USD 23.88/year Monthly 80 AI credits/month; not a dedicated removal count Rules [1] Annual 960 general AI credits/year, valid for one year Rules [2] Premium2026-10-20 ↗ USD 9.99/month USD 95.88/year Monthly 1,000 AI credits/month; not a dedicated removal count Rules [1] Annual 12,000 general AI credits/year, valid for one year Rules [2] Ultra regular2026-10-20 ↗ USD 24.99/month USD 239.9/year Monthly 5,000 AI credits/month; not a dedicated removal count Rules [1] Annual 60,000 general AI credits/year, valid for one year Rules [2] Ultra MAX2026-10-20 ↗ USD 49.99/month USD 479.9/year Monthly 10,000 AI credits/month; not a dedicated removal count Rules [1] Annual 120,000 general AI credits/year, valid for one year Rules [2] 200 AI credits2026-10-20 ↗ USD 3.99 · one-time payment Usage / one-time Usage / one-time 200 general AI credits; pack expiry not separately verified 500 AI credits2026-10-20 ↗ USD 6.99 · one-time payment Usage / one-time Usage / one-time 500 general AI credits; pack expiry not separately verified 1,000 AI credits2026-10-20 ↗ USD 9.99 · one-time payment Usage / one-time Usage / one-time 1,000 general AI credits; pack expiry not separately verified 2,000 AI credits2026-10-20 ↗ USD 16.99 · one-time payment Usage / one-time Usage / one-time 2,000 general AI credits; pack expiry not separately verified 5,000 AI credits2026-10-20 ↗ USD 30.99 · one-time payment Usage / one-time Usage / one-time 5,000 general AI credits; pack expiry not separately verified 13 plan / billing-period records, all listed; — means that period is not recorded. All four annual charges were confirmed at checkout. Ultra $239.90/year and Ultra MAX $479.90/year differ from rounded monthly equivalents multiplied by 12. The feature FAQ advertises free removal and batch ZIP export without quantifying free counts/limits. Removal credit conversion and top-up expiry are not separately stated in reviewed pages. Tax depends on billing address. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordPage states cancellation is available anytime; refund details unverified. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ Official annual checkout summaries for all four plans ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ Official free removal and batch explanation ↗ · 2026-10-20 Capture 1 ↗ | ImgUpscaler personal and business plans (Free / Premium / Business); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-21 ↗ Free Free Free 50 credits/month; single-image AI upscaling, enhancement, and Reimagine (includes ads; guest single-image 4x upscaling available). Premium Monthly2026-10-21 ↗ USD 9.9/month — Monthly 500 credits/month; includes batch processing, Reimagine AI access, ad-free workspace, and email support. Premium Yearly2026-10-21 ↗ — USD 49/year Annual Billed yearly at USD 49/year (USD 4.08/month equivalent); 500 credits/month, batch processing, ad-free workspace, and email support. Business Monthly2026-10-21 ↗ USD 19.9/month — Monthly No credits limit; single and batch processing, Reimagine AI access, ad-free workspace, and commercial production workflows. Business Yearly2026-10-21 ↗ — USD 69/year Annual Billed yearly at USD 69/year (USD 5.75/month equivalent); no credits limit, batch processing, and ad-free workspace. 5 plan / billing-period records, all listed; — means that period is not recorded. The official pricing page lists Free (USD 0, 50 credits/month, single-image processing, includes ads), Premium (USD 9.90/month or USD 49/year, equivalent to USD 4.08/month, with 500 credits/month, batch processing, and no ads), and Business (USD 19.90/month or USD 69/year, equivalent to USD 5.75/month, with no credit limit, batch processing, and no ads). Cancellation, sources & verification recordCancel or change plans anytime from the account billing page; both free and paid results may be used for personal or commercial projects subject to source-image rights. ImgUpscaler official monthly/yearly pricing and FAQ ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | 50 free initial AI credits upon signup; Super Scale (2x/4x/8x) costs only 1 credit per upscale, with 3 free daily saves | Free single-image 200% (2x) and 400% (4x) unwatermarked upscaling without login; batch upload requires a paid plan |
| Cancellation & refunds | Page states cancellation is available anytime; refund details unverified. | Cancel or change plans anytime from the account billing page; both free and paid results may be used for personal or commercial projects subject to source-image rights. |
| Disclosure of costs & limits | Super Scale panel clearly labels 'Scale up (1c)' and 25MP (5000×5000) max limit; right sidebar displays video ads | No paywall traps; supported by standard and vignette Google AdSense ads |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 4× |
| Fixture findings | The tested 4× output was watermark-free with clear main lettering; inspect small text and other images separately. | This guest run produced a watermark-free 4× image with structure retained; findings cover this fixture only. |
| Original historical observation | PSNR=26.95dB · SSIM=0.8846 (native 4x 2048×2048 unwatermarked PNG export); Edge gradient correlation edge_corr=0.6141 (+4.85% over Bicubic); high-frequency recovery hf_ratio=0.4636; Calibration plate PSNR=15.56dB: clean 'REALTEST 2026' wood sign and smooth natural brass surface rendering. | PSNR=27.50dB · SSIM=0.8900 (4x 2048×2048 unwatermarked PNG); edge_corr=0.6685, hf_ratio=0.4995, plate_psnr=16.22dB—one of the very few tools offering genuine 400% watermark-free exports to anonymous guests. |
| Suitable uses · historical assessment | Users needing 4x/8x high-resolution upscaling (up to 5000×5000px) combined with multi-layer canvas editing | Users who want true 4x (2048×2048) watermark-free faithful super-resolution without creating an account |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | No native output obtained; the preview does not establish final export quality. |
| Delivery capabilities | ||
| Recorded export specifications | 2048×2048 (PNG · 4.0x Super Scale) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. | 2048×2048 (PNG · 400% / 4.0x AI Upscale) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. |
| Historical specification note · not an official maximum | 2048×2048 (PNG · 4.0x Super Scale) | 2048×2048 (4.0x / 400% · Free without login) |
| Watermark observation | No watermark | 100% Watermark-Free |
| Batch & API | Supports chained 2x/4x/8x upscaling up to 5000×5000px (25MP) and multi-layer editing | Batch web upload on paid plans; offline batch processing via desktop app Upscal.app |
| Recorded free-tier dimensions | Not verified | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 3.4s · End-to-end reference: 3.85s | Network-observed server wait: 20.68s · End-to-end reference: 22.22s |
| Date & fixture | 2026-10-16 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-16 · anchor_upscale_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | Account required in this test | No login in this test |
| Sign-in methods | Free login via Google, Apple, Facebook, or Email | No login required; optional email/Google login for paid plans |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Displays third-party video ads along the right sidebar on the free tier and caps free local saves at 3 per day. | Zero login walls or bait-and-switch paywalls, though the free web page runs Google AdSense including a full-screen interstitial vignette (`#google_vignette`, Screenshot ④) that may require dismissing. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Pixlr Pte. Ltd. (Inmagine Group / 123RF) | ImgUpscaler / Upscal.app Team |
| Recorded origin | Singapore | Independent Cross-Platform Utility Team (Web + macOS/Windows App Store) |
| Domain history record | 2008–Present | 2020–Present |
| Background & reputation assessment | 18-year veteran photo suite operated by Singapore's Inmagine Group (123RF), with Plus plans starting at $1.99/mo. | Operated by the independent team behind Upscal.app (available on the Mac App Store and Microsoft Store). |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | 4x (2048×2048) upscale completed in ~3.40s and exported a 3.1MB lossless PNG (also supports JPG, WebP, PDF, PXZ). | Uses `/api/legacy/upload` and `/api/legacy/status` async polling; FAQ #10 explicitly states all uploaded and processed images are permanently deleted within 24 hours. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Claims deletion within 24 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 29 / 35 Exceptionally fair credit pricing: whether you choose 2x (1024px), 4x (2048px), or 8x (4096px), Super Scale costs just 1 AI credit ('Scale up 1c') out of 50 free signup credits. | 32 / 35 Anonymous guests can select `400%` (4x) or `200%` (2x) directly on the home page, click 'Upload & Start', and download a 100% watermark-free 2048×2048 (4x) PNG without signing up or entering a card (Screenshots ②③). |
| Interaction restraint | 22 / 30 Displays third-party video ads along the right sidebar on the free tier and caps free local saves at 3 per day. | 21 / 30 Zero login walls or bait-and-switch paywalls, though the free web page runs Google AdSense including a full-screen interstitial vignette (`#google_vignette`, Screenshot ④) that may require dismissing. |
| Background & reputation | 18 / 20 18-year veteran photo suite operated by Singapore's Inmagine Group (123RF), with Plus plans starting at $1.99/mo. | 15 / 20 Operated by the independent team behind Upscal.app (available on the Mac App Store and Microsoft Store). |
| Engineering & privacy | 14 / 15 4x (2048×2048) upscale completed in ~3.40s and exported a 3.1MB lossless PNG (also supports JPG, WebP, PDF, PXZ). | 12 / 15 Uses `/api/legacy/upload` and `/api/legacy/status` async polling; FAQ #10 explicitly states all uploaded and processed images are permanently deleted within 24 hours. |
| Task quality | 56.5 / 65 PSNR vs 2048px GT: 26.95 dB · SSIM: 0.8846 · Edge Gradient Correlation: 0.6141 · High-Freq Sharpness Ratio: 0.4636 · Calibration Plate PSNR: 15.56 dB | 58.5 / 65 PSNR vs 2048px GT: 27.5 dB · SSIM: 0.89 · Edge Gradient Correlation: 0.6685 · High-Freq Sharpness Ratio: 0.4995 · Calibration Plate PSNR: 16.22 dB |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Free scale factor: 4x (2048×2048 (PNG · 4.0x Super Scale)) | 20 / 20 No free unwatermarked export (0/8); Free scale factor: 4x (2048×2048 (4.0x / 400% · Free without login)) |
| Processing speed | 14 / 15 Network-observed server wait: 3.4s (API mode: sync_post; end-to-end 3.85s shown for reference only, never penalized) | 8 / 15 Network-observed server wait: 20.68s (API mode: async_poll; end-to-end 22.22s shown for reference only, never penalized) |
