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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 | prowritingaid.com | smodin.io | Switch / compare |
|---|---|---|---|
| AI paraphrasing & rewriting | 86/100 JSON · Output attached | 82/100 TXT · Output attached | Active task |
| AI content detection | Not tested in topic | 91/100 JSON · Output attached | Compare in task topic → |
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Browse this task →| Criterion | ProWritingAid AI paraphrasing & rewriting 86/100 Seven-aspect task score ProWritingAid, a renowned writing companion in professional publishing and fiction writing, delivers robust sentence restructuring and flawless factual fidelity via its Rephrase feature. Against our 80-word benchmark sample, the cloud API responded in 1.45 seconds with 3 candidate rewrites across 8 nuanced tones, preserving 100% of critical numbers ($1,250,000) and verification token REALTEST-PARAPHRASE-VERIFIED-2026. Offering an anonymous daily quota of 10 rephrases without intrusive ads, it demonstrates commendable engineering discipline. Tested export JSON · Output attached Historical test · 2026-11-03 | Smodin (AI Rewriter & Humanizer) AI paraphrasing & rewriting 82/100 Seven-aspect task score Smodin AI Rewriter & Humanizer delivered fast 1.18s cloud generation with 79.5% lexical diversity, preserving the anti-counterfeit token and financial figures (5/7 facts retained, 100 readability score), though a 1000-character entry minimum applies to anonymous users. Tested export TXT · Output attached Historical test · 2026-11-04 |
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| Pricing & rules | ||
| Pricing plans | ProWritingAid Free, Premium, and Premium Pro recurring subscriptions and lifetime plans · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ Free Free Free 10 rephrases/day, 2 report runs/day (up to 500 words), basic grammar and spelling check Basic style analysis and grammar rephrasing Premium (Monthly)2026-10-31 ↗ USD 30/month — Monthly Unlimited rephrases, unlimited 25+ manuscript reports, 1 chapter critique/day, custom style guide Professional fiction style analysis and manuscript editing Premium (Annual)2026-10-31 ↗ — USD 120/year Annual Billed annually at $120.00 ($10.00/mo equivalent), unlimited rephrases and manuscript reports Professional fiction style analysis and manuscript editing Premium (Lifetime)2026-10-31 ↗ USD 399 · one-time payment Usage / one-time Usage / one-time One-time lifetime payment of $399.00 for permanent access to all Premium features Lifetime unlimited style analysis and editing Premium Pro (Monthly)2026-10-31 ↗ USD 36/month — Monthly All Premium features plus 30 chapter critiques/day, author community access, and live workshops Advanced fiction critique and master workshops Premium Pro (Annual)2026-10-31 ↗ — USD 144/year Annual Billed annually at $144.00 ($12.00/mo equivalent), 30 chapter critiques/day, community access Advanced fiction critique and master workshops Premium Pro (Lifetime)2026-10-31 ↗ USD 699 · one-time payment Usage / one-time Usage / one-time One-time lifetime payment of $699.00 for permanent access to all Premium Pro features Lifetime advanced critique and community access 7 plan / billing-period records, all listed; — means that period is not recorded. Verified pricing tabs clearly specify monthly rates ($30/mo, $36/mo), exact upfront annual totals ($120/yr at $10/mo equiv, $144/yr at $12/mo equiv), and lifetime single charges ($399, $699); Free tier includes 10 rephrases/day and 2 report runs/day. Cancellation, sources & verification recordCancellation and refund terms unverified ProWritingAid Official Pricing Cards (Annual) ↗ · 2026-10-31 Capture 1 ↗ ProWritingAid Official Pricing Cards (Monthly) ↗ · 2026-10-31 Capture 1 ↗ ProWritingAid Official Pricing Cards (Lifetime) ↗ · 2026-10-31 Capture 1 ↗ | Smodin free daily limits, Starter, and Premium subscription pricing tiers · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ Free Free Free Daily limited AI rephrasing and detection queries with anonymous access Basic AI detection and rewriting queries Starter (Monthly)2026-10-31 ↗ USD 12.99/month — Monthly Instant access to all standard AI tools: detector, humanizer, plagiarism scanner, AI writer Standard AI detection and text humanization Starter (Annual)2026-10-31 ↗ — Annual price not verified Annual Annual Starter plan with full access to standard AI tools Standard AI detection and text humanization；Card displays only equivalent $10 USD/mo billed annually without explicit annual invoice total Premium (Monthly)2026-10-31 ↗ USD 19.99/month — Monthly Premium AI models, unlimited long-form writing output, advanced plagiarism scans, Turnitin-level humanization Advanced adversarial humanization and unlimited generation Premium (Annual)2026-10-31 ↗ — Annual price not verified Annual Annual Premium plan with premium AI models and unlimited output Advanced adversarial humanization and unlimited generation；Card displays only equivalent $16 USD/mo billed annually without explicit annual invoice total 5 plan / billing-period records, all listed; — means that period is not recorded. Verified monthly rates: Starter $12.99/mo, Premium $19.99/mo; annual plan cards show monthly equivalents ($10/mo, $16/mo) without explicit annual invoice total; annual plans kept unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms unverified Smodin Official Pricing Cards (Monthly) ↗ · 2026-10-31 Capture 1 ↗ Smodin Official Pricing Cards (Annual) ↗ · 2026-10-31 Capture 1 ↗ |
| Free & trial allowance on the test date | Not verified | Free tier has 1000-character minimum for anonymous entry; basic paraphrasing included |
| Cancellation & refunds | Not verified | Not verified |
| Disclosure of costs & limits | Not verified | Character bounds and rewritten text displayed immediately upon generation |
| Task quality | ||
| Measured fixture results | Fact retention: 100% · Lexical diversity: 12.5% · Semantic similarity: 92.9% · Readability score: 100/100 | Fact retention: 71.4% · Lexical diversity: 79.5% · Semantic similarity: 46.6% · Readability score: 100/100 |
| Fixture findings | Solid benchmark performance: 100% fact and verification token retention, 92.9% semantic similarity, 8 tone options, and rapid 1.45s turnaround. | Preserves verification token REALTEST-PARAPHRASE-VERIFIED-2026 and $1,250,000 amount with 79.5% lexical diversity, 100 readability score, and 1.18s cloud latency. |
| Original historical observation | Not verified | Rewritten text preserves anti-counterfeit token and $1,250,000 figure (5/7 core facts retained), achieving 79.5% lexical diversity and 100 readability score. |
| Suitable uses · historical assessment | Not verified | Writers and students needing rapid multi-lingual paraphrasing and readability improvement |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | JSON · Output attached · Check watermark record | TXT · Output attached · Check watermark record |
| Historical specification note · not an official maximum | Sentence-level 3 rephrase candidates + 8 tone mode options | Full natural rewritten text with direct copy |
| Watermark observation | Not verified | Completely watermark-free |
| Batch & API | Not verified | Web interactive input + developer API |
| Recorded free-tier dimensions | Not verified | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 1.45s · End-to-end reference: 1.45s | Network-observed server wait: 1.18s · End-to-end reference: 1.18s |
| Date & fixture | 2026-11-03 · anchor_paraphrase_v1 · US-West (California, AS2914) | 2026-11-04 · anchor_paraphrase_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 | Not verified | Not verified |
| Sign-in methods | Not verified | No login required for basic rewriting |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Clean web interface with side-by-side comparison, zero forced redirects or popups. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Orpheus Technology Ltd | Smodin LLC |
| Recorded origin | Not verified | United States |
| Domain history record | Not verified | 2019–Present |
| Background & reputation assessment | Not verified | Operated by Smodin LLC, providing AI language restructuring tools globally. |
| External reputation record | Not verified | Widely used AI writing, rewriting, and detection platform serving multi-lingual users globally. |
| Engineering & privacy | ||
| Processing location | Processing location unconfirmed | Processing location unconfirmed |
| Third-party tracking record | Stripe · Google Analytics · Datadog | Google Analytics · Stripe · PayPal |
| Engineering & privacy assessment | Not verified | Encrypted HTTPS transport, temporary session processing without public exposure. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 32 / 35 Transparently shows word count and mode options; Basic and Pro plans clearly listed. | |
| Interaction restraint | 28 / 30 Clean web interface with side-by-side comparison, zero forced redirects or popups. | |
| Background & reputation | 16 / 20 Operated by Smodin LLC, providing AI language restructuring tools globally. | |
| Engineering & privacy | 14 / 15 Encrypted HTTPS transport, temporary session processing without public exposure. | |
| Task quality | 46.1 / 65 Fact Retention: 100% · Lexical Diversity: 12.5% · Semantic Similarity: 92.9% · Readability Score: 100/100 | 43.1 / 65 Fact Retention: 71.4% · Lexical Diversity: 79.5% · Semantic Similarity: 46.6% · Readability Score: 100/100 |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: Sentence-level 3 rephrase candidates + 8 tone mode options | 20 / 20 Clean unwatermarked export (8/8); Export spec: Full natural rewritten text with direct copy |
| Processing speed | 15 / 15 Network-observed server wait: 1.45s (API mode: sync_json_verified; network upload 0s / end-to-end 1.45s shown for reference only, never penalized) | 15 / 15 Network-observed server wait: 1.18s (API mode: sync_json_verified; network upload 0s / end-to-end 1.18s shown for reference only, never penalized) |
