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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 | Clipdrop | ImgUpscaler | Switch / compare |
|---|---|---|---|
| Background removal | 91/100 1024 × 1024 · PNG | Not tested in topic | Compare in task topic → |
| Image upscaling | 88/100 1024×1024 (PNG · 2.0x Unwatermarked) · Historical description; output not attached | 85/100 2048×2048 (PNG · 400% / 4.0x AI Upscale) · Historical description; output not attached | Active task |
| Object removal | 84/100 1024×1024 (Free SD, No Watermark) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Clipdrop by Jasper (Image Upscaler) Image upscaling 88/100 Seven-aspect task score Login-free, ad-free 2× watermark-free downloads are simple and took about five seconds end to end; higher specifications were outside this free export. Tested export 1024×1024 (PNG · 2.0x Unwatermarked) · 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 | Current public web Free and monthly Pro plans; API separate · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits 3 plan / billing-period records, all listed; — means that period is not recorded. Recheck confirms Pro at USD 15/month; free removal 20/24h and Pro HD removal 1,000/24h. No annual offer appears on this page; tax and refund details were not separately verified. Cancellation, sources & verification recordSelf-serve cancellation anytime in account settings Official plans and usage terms ↗ · 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 | Free no-login 2x upscaling and export (supports up to 10 files per batch within daily free quota) | Free single-image 200% (2x) and 400% (4x) unwatermarked upscaling without login; batch upload requires a paid plan |
| Cancellation & refunds | Self-serve cancellation anytime in account settings | 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 | Cleanly presents x2 / x4 / x8 / x16 options; x2 exports directly for free with zero ad clutter | No paywall traps; supported by standard and vignette Google AdSense ads |
| Task quality | ||
| Measured fixture results | Tested scale: 2× | Tested scale: 4× |
| Fixture findings | Denoising and highlight transitions looked natural; the tested free output was 2× at 1024px. | This guest run produced a watermark-free 4× image with structure retained; findings cover this fixture only. |
| Original historical observation | PSNR=27.17dB · SSIM=0.8867 (2x 1024×1024 unwatermarked PNG); Edge gradient correlation edge_corr=0.6069; high-frequency recovery hf_ratio=0.4791 (+11.40% over Bicubic); Calibration plate PSNR=15.69dB: excellent denoising and clean specular transitions on the oak table and blue ceramic mugs. | 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 wanting a clean, ad-free interface with no-login batch 2x upscaling (up to 10 images at once) | 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 | 1024×1024 (PNG · 2.0x Unwatermarked) · 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 | 1024×1024 (PNG · 2.0x Unwatermarked) | 2048×2048 (4.0x / 400% · Free without login) |
| Watermark observation | No watermark | 100% Watermark-Free |
| Batch & API | Free tier supports dragging up to 10 files at once, plus enterprise Jasper/Clipdrop Super-Resolution API | 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: 4.05s · End-to-end reference: 4.97s | 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 | No login in this test | No login in this test |
| Sign-in methods | No login required for 2x upscaling (up to 10 images per batch) and unwatermarked download; 4x/8x/16x require Pro | No login required; optional email/Google login for paid plans |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Minimalist, ad-free workspace (02_workspace.png / 03_download.png) that even allows up to 10 images per batch on the free tier. | 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 | Jasper AI, Inc. (acquired Clipdrop from Stability AI / Init ML) | ImgUpscaler / Upscal.app Team |
| Recorded origin | Paris, France / Austin, TX, USA | Independent Cross-Platform Utility Team (Web + macOS/Windows App Store) |
| Domain history record | 2020–Present | 2020–Present |
| Background & reputation assessment | Originally founded by Paris-based Init ML, later acquired by Stability AI and Jasper AI. | 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 | Uses non-intrusive Cloudflare Turnstile verification (0.92s) followed by api.clipdrop.co/super-resolution/v1 (4.05s) streamed directly to a local Blob. | 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 | 30 / 35 In stark contrast to its Text-to-Image tool (which blocks free users with a hard paywall), Clipdrop's Image Upscaler (01_landing.png) offers 100% free, no-login x2 (1024×1024) upscaling and unwatermarked PNG download. | 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 | 27 / 30 Minimalist, ad-free workspace (02_workspace.png / 03_download.png) that even allows up to 10 images per batch on the free tier. | 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 Originally founded by Paris-based Init ML, later acquired by Stability AI and Jasper AI. | 15 / 20 Operated by the independent team behind Upscal.app (available on the Mac App Store and Microsoft Store). |
| Engineering & privacy | 14 / 15 Uses non-intrusive Cloudflare Turnstile verification (0.92s) followed by api.clipdrop.co/super-resolution/v1 (4.05s) streamed directly to a local Blob. | 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 / 65 PSNR vs 2048px GT: 27.17 dB · SSIM: 0.8867 · Edge Gradient Correlation: 0.6069 · High-Freq Sharpness Ratio: 0.4791 · Calibration Plate PSNR: 15.69 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 | 17 / 20 Clean unwatermarked export (8/8); Free scale factor: 2x (1024×1024 (PNG · 2.0x Unwatermarked)) | 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: 4.05s (API mode: sync_post; end-to-end 4.97s 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) |
