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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 | Let's Enhance | Krea | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 84/100 2048 × 2048 · PNG | Compare in task topic → |
| Image upscaling | 76/100 2048×2048 (JPG · 4.0x Prime Upscale · Bottom-left watermark) · Historical description; output not attached | 71/100 1024×1024 (PNG · 2.0x Generative Enhance) · Historical description; output not attached | Active task |
| Object removal | Not tested in topic | 91/100 2048×2048 (Native full-resolution watermark-free PNG) · Historical description; output not attached | Compare in task topic → |
| Image generation | 80/100 2048×2048 (9.96 MB PNG · Bottom-left watermark on free credits) · Historical description; output not attached | 93/100 2048 × 2048 · PNG |
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Browse this task →| Criterion | Let's Enhance (Prime 4x Upscaler) Image upscaling 76/100 Seven-aspect task score 4× detail is good and the workspace is ad-free, but registration is required and trial-credit exports still carry a watermark not disclosed before signup. Tested export 2048×2048 (JPG · 4.0x Prime Upscale · Bottom-left watermark) · Historical description; output not attached Historical test · 2026-10-16 | Krea AI (Krea Enhance) Image upscaling 71/100 Seven-aspect task score Free compute can enhance textures, but login, repeated onboarding promotions and a long queue add friction; rewritten small text limits fidelity-sensitive work. Tested export 1024×1024 (PNG · 2.0x Generative Enhance) · Historical description; output not attached Historical test · 2026-10-16 |
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| Pricing & rules | ||
| Pricing plans | Let’s Enhance personal subscription plans (Free Trial / Starter / Pro / Max); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Signup free allowance2026-10-21 ↗ Free trial Trial Trial 10 free credits upon signup (1 credit per upscaled image, 2 credits per AI generation; free-credit exports include watermark). Starter Monthly (100 credits)2026-10-21 ↗ USD 12/month — Monthly 100 credits/month (unused credits roll over up to 600 credits); upscaling up to 256 MP, AI art generation, and watermark-free export. Starter Annual (100 credits/mo)2026-10-21 ↗ — Annual price not verified Annual 100 credits/month (accumulate up to 600 credits); card displays USD 9/month equivalent billed annually. Public card displays only the USD 9/month equivalent ("Billed annually") without showing the annual invoice total before login. Pro Monthly (300 credits)2026-10-21 ↗ USD 32/month — Monthly 300 credits/month (unused credits roll over up to 1,800 credits); upscaling up to 350 MP, AI art generation, and watermark-free export. Pro Annual (300 credits/mo)2026-10-21 ↗ — Annual price not verified Annual 300 credits/month (accumulate up to 1,800 credits); card displays USD 24/month equivalent billed annually. Public card displays only the USD 24/month equivalent ("Billed annually") without showing the annual invoice total before login. Max Monthly (500 credits)2026-10-21 ↗ USD 45/month — Monthly 500 credits/month (unused credits roll over up to 3,000 credits); upscaling up to 512 MP, AI art generation, and watermark-free export. Max Annual (500 credits/mo)2026-10-21 ↗ — Annual price not verified Annual 500 credits/month (accumulate up to 3,000 credits); card displays USD 34/month equivalent billed annually. Public card displays only the USD 34/month equivalent ("Billed annually") without showing the annual invoice total before login. 7 plan / billing-period records, all listed; — means that period is not recorded. The official pricing page and FAQ list personal monthly prices: Starter USD 12/month (100 credits/month), Pro USD 32/month (300 credits/month), and Max USD 45/month (500 credits/month), with unused credits rolling over up to 6x the monthly allowance. Annual cards display only monthly equivalents (USD 9 / 24 / 34 per month, "Billed annually") without printing the annual invoice total on the public page, so annual totals are marked unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancel anytime via the Cancel Subscription button on the Pricing page; remaining unused credits expire at the end of the paid billing period. Purchasing any plan or bundle unlocks watermark-free downloads for previously processed images. Let’s Enhance official pricing and credit rules FAQ ↗ · 2026-10-21 Capture 1 ↗ | Individual web plans and default Business 80k volume; excludes API and other business volumes · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Basic2026-10-20 ↗ USD 9/month USD 63/year Monthly 5,000 general compute units/month; not removal counts Annual 5,000 general compute units/month Observed first-year promotion USD 63; then USD 84/year until cancelled Rules [1]Pro2026-10-20 ↗ USD 35/month USD 252/year Monthly 20,000 general compute units/month; not removal counts Annual 20,000 general compute units/month Observed first-year promotion USD 252; then USD 336/year until cancelled Rules [1]Max 60k2026-10-20 ↗ USD 105/month USD 756/year Monthly 60,000 general compute units/month; not removal counts Annual 60,000 general compute units/month Observed first-year promotion USD 756; then USD 1008/year until cancelled Rules [1]Business 80k2026-10-20 ↗ USD 200/month USD 1,920/year Monthly 80,000 general compute units/month; not removal counts Annual 80,000 general compute units/month Max 40k2026-10-20 ↗ USD 70/month USD 504/year Annual 40,000 general compute units/month Observed first-year promotion USD 504; then USD 672/year until cancelled Rules [1]Monthly 40,000 general compute units/month Max 80k2026-10-20 ↗ USD 135/month USD 972/year Annual 80,000 general compute units/month Observed first-year promotion USD 972; then USD 1296/year until cancelled Rules [1]Monthly 80,000 general compute units/month Max 100k2026-10-20 ↗ USD 165/month USD 1,188/year Annual 100,000 general compute units/month Observed first-year promotion USD 1188; then USD 1584/year until cancelled Rules [1]Monthly 100,000 general compute units/month Enterprise2026-10-20 ↗ Contact sales Quoted Quoted Custom enterprise support, security and administration 16 plan / billing-period records, all listed; — means that period is not recorded. All 10 previously missing amounts are confirmed in USD checkout summaries. Individual annual offers separate first-year and renewal charges; Business 80k is $1,920/year. Max monthly purchase paths show additional annual offers whose checkout totals were not independently confirmed; these are not merged with the default annual offer. Per-removal compute cost and extra top-up pricing are not separately specified in the verified plans/checkouts. Other Business volumes are outside scope. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordSelf-serve cancellation in account settings Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ USD checkout summaries reached from official pricing ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ · Capture 5 ↗ · Capture 6 ↗ · Capture 7 ↗ · Capture 8 ↗ · Capture 9 ↗ · Capture 10 ↗ Additional annual offers on monthly purchase paths ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ |
| Free & trial allowance on the test date | New accounts receive 10 free credits (1 credit per upscale; 9 credits left after test); removing the watermark and unlocking 8x/16x require a paid subscription | 50 free daily compute credits (~6–7 free 2x enhancements/day); free tier is capped at 1 concurrent job with queue wait, and 8x/16x require a paid subscription |
| Cancellation & refunds | Cancel anytime via the Cancel Subscription button on the Pricing page; remaining unused credits expire at the end of the paid billing period. Purchasing any plan or bundle unlocks watermark-free downloads for previously processed images. | Self-serve cancellation in account settings |
| Disclosure of costs & limits | Watermark appears only on the generated thumbnail and downloaded file after signup and processing | Prompts signup upon clicking Generate and clearly marks 8x/16x as 'For paid users only' inside the workspace |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 2× |
| Fixture findings | Text was clear in this 4× output; the free-credit image carried a brand watermark. | Enhanced texture but rewrote small text in this fixture; take care when exact lettering matters. |
| Original historical observation | PSNR=27.02dB · SSIM=0.8631 (4x 2048×2048 Prime model); outstanding edge_corr=0.7108, hf_ratio=0.7910, and plate_psnr=17.25dB with razor-sharp 'REALTEST 2026' and 'REALTEST 2048px GT' typography, though free-credit exports include a bottom-left Let's Enhance watermark. | PSNR=23.64dB · SSIM=0.7771 (2x 1024×1024 unwatermarked PNG); high hf_ratio=0.6486 makes the 'REALTEST 2026' wooden sign and brass robot look ultra-detailed, but because Krea uses a generative diffusion model (realisticv51, denoising=0.4), the small bottom-right calibration plate text 'REALTEST 2048px GT' is hallucinated into 'AFAL I SOT 20110pss OT' (plate_psnr=14.30dB). |
| Suitable uses · historical assessment | Print and design professionals who need ultra-crisp 4x–16x texture restoration and are willing to subscribe to remove the watermark | Creators seeking 'Generative Upscaling' to hallucinate rich surface textures on AI art or portraits—not suitable for document or micro-text fidelity |
| 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 (JPG · 4.0x Prime Upscale · Bottom-left watermark) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. | 1024×1024 (PNG · 2.0x Generative Enhance) · 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 (4.0x · Free tier unlocks 1x/2x/4x; 8x/16x require paid plan) | 1024×1024 (2.0x · Free tier unlocks 2x/4x; 8x/16x require paid plan) |
| Watermark observation | Free-credit exports carry a semi-transparent 'Let's Enhance .io' logo in the bottom-left corner | 100% Watermark-Free |
| Batch & API | Supports multi-image batch queues (up to 50MB/file) and enterprise Claid.ai API | Paid plans unlock multi-job concurrency and up to 16x upscaling; free tier is limited to 1 concurrent job |
| Recorded free-tier dimensions | Not verified | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 20.1s · End-to-end reference: 22.2s | Network-observed server wait: 8.61s · End-to-end reference: 87.81s |
| 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 | Account required in this test |
| Sign-in methods | Mandatory Google or Email registration at /signup after selecting a file | Clicking Generate on the landing page requires Google / Apple / Email sign-in |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Uses an 'upload-first, signup-gate-second' funnel, though it preserves the uploaded image in the `/boost` queue after login; workspace is clean and ad-free. | Post-signup `/onboarding` triggers two consecutive discount retention modals when clicking 'Skip': first a 1-hour countdown modal ('Take Pro at 40% off instead... Offer ends in 0h:59m:57s'), followed by a 'Final chance — Are you sure you don't want this offer?' modal when dismissing the bottom bar (Screenshot ④); once inside `/enhancer`, the workspace is clean. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Let's Enhance Inc. (San Francisco, CA, USA) | Krea AI Inc. (San Francisco, CA, USA) |
| Recorded origin | San Francisco, USA (Ukrainian-founded team) | San Francisco, USA |
| Domain history record | 2017–Present | 2022–Present |
| Background & reputation assessment | Operated by Let's Enhance Inc. (founded 2017, San Francisco, CA, Techstars alum), one of the earliest commercial deep-learning super-resolution platforms. | Developed by Krea AI Inc. (San Francisco, CA, founded by Victor Perez & Diego Rodriguez, backed by Andreessen Horowitz & Bain Capital Ventures). |
| 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 | Provides multi-model SR controls (Prime, Gentle, Old photo, Light AI) and 1x–16x scale factors over a stable cloud queue. | Uses an async GPU job queue (`/api/job-status` reports exact `time_in_gen_server: 8.61s` and `t_inference: 4.57s`) with encrypted CDN delivery (`gen.krea.ai`). |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 18 / 35 The home page (Screenshot ①) presents a drag-and-drop uploader that immediately redirects to `/signup` promising 'Get started with 10 images free' (Screenshot ④); signing in via Google grants 10 credits and unlocks Prime 4x (2048×2048), but the exported 2048×2048 JPG embeds a semi-transparent 'Let's Enhance .io' watermark in the bottom-left corner (Screenshot ③) that was not disclosed on the signup page. | 24 / 35 Landing page `/apps/enhance` (Screenshot ①) provides an upload box and 1x/2x/4x/8x buttons, prompting 'Sign up for 50 free credits daily' when clicking Generate; after free Google sign-in, Krea grants daily free compute credits and exports 100% watermark-free 1024×1024 (2x) PNGs (8x and 16x are clearly labeled 'For paid users only'). |
| Interaction restraint | 21 / 30 Uses an 'upload-first, signup-gate-second' funnel, though it preserves the uploaded image in the `/boost` queue after login; workspace is clean and ad-free. | 18 / 30 Post-signup `/onboarding` triggers two consecutive discount retention modals when clicking 'Skip': first a 1-hour countdown modal ('Take Pro at 40% off instead... Offer ends in 0h:59m:57s'), followed by a 'Final chance — Are you sure you don't want this offer?' modal when dismissing the bottom bar (Screenshot ④); once inside `/enhancer`, the workspace is clean. |
| Background & reputation | 18 / 20 Operated by Let's Enhance Inc. (founded 2017, San Francisco, CA, Techstars alum), one of the earliest commercial deep-learning super-resolution platforms. | 19 / 20 Developed by Krea AI Inc. (San Francisco, CA, founded by Victor Perez & Diego Rodriguez, backed by Andreessen Horowitz & Bain Capital Ventures). |
| Engineering & privacy | 13 / 15 Provides multi-model SR controls (Prime, Gentle, Old photo, Light AI) and 1x–16x scale factors over a stable cloud queue. | 13 / 15 Uses an async GPU job queue (`/api/job-status` reports exact `time_in_gen_server: 8.61s` and `t_inference: 4.57s`) with encrypted CDN delivery (`gen.krea.ai`). |
| Task quality | 59 / 65 PSNR vs 2048px GT: 27.02 dB · SSIM: 0.8631 · Edge Gradient Correlation: 0.7108 · High-Freq Sharpness Ratio: 0.791 · Calibration Plate PSNR: 17.25 dB | 45 / 65 PSNR vs 2048px GT: 23.64 dB · SSIM: 0.7771 · Edge Gradient Correlation: 0.4812 · High-Freq Sharpness Ratio: 0.6486 · Calibration Plate PSNR: 14.3 dB |
| Deliverable specifications | 12 / 20 No free unwatermarked export (0/8); Free scale factor: 4x (2048×2048 (4.0x · Free tier unlocks 1x/2x/4x; 8x/16x require paid plan)) | 15 / 20 No free unwatermarked export (0/8); Free scale factor: 2x (1024×1024 (2.0x · Free tier unlocks 2x/4x; 8x/16x require paid plan)) |
| Processing speed | 8 / 15 Network-observed server wait: 20.1s (API mode: async_poll; end-to-end 22.2s shown for reference only, never penalized) | 9.5 / 15 Network-observed server wait: 8.61s (API mode: async_poll; end-to-end 87.81s shown for reference only, never penalized) |
