fastwrite vs Undermind vs ScienceOS vs ThesisAI

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
fastwrite
vs
Competitor 1
Undermind
Competitor 2
ScienceOS
Competitor 3
ThesisAI
Compare
4 tools · best value per row highlighted
Your tool fastwrite
fastwrite.io
Academic writing means juggling sources while trying to sound original
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Competitor Undermind
undermind.ai
Undermind is an AI co-researcher for scientific literature.
Make main Remove
Competitor ScienceOS
scienceos.ai
Researchers waste hours hunting through literature—piecing together fragments from different papers
Make main Remove
Competitor ThesisAI
thesisai.io
ThesisAI turns a single prompt and a set of source papers into a referenced academic draft.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
2.2Kvisits/mo
—
64.9Kvisits/mo
204.8Kvisits/mo
MoM change
▲ 200.8%
—
▼ 6.2%
▼ 6.8%
6-month growth
-38.3%
—
+1.2%
-4.1%
Global rank web
#5,936,435
—
#464,304
#212,645
Avg. last 3 months
1.4K
—
68.2K
219.7K
Bounce rate lower is better
19%
—
39%
41%
Pages / visit
3.0
—
3.7
2.2
Visit duration
2m 40s
—
1m 37s
55s
Traffic sources
—
—
● Direct 98% · ● Mail 2%
● Direct 79% · ● Referral 12%
fastwriteUndermindScienceOSThesisAI
058.6K117.2K175.9K234.5Kfastwrite · 3.8Kfastwrite · 12.3Kfastwrite · 4.4Kfastwrite · 3.6Kfastwrite · 5.4Kfastwrite · 1.5Kfastwrite · 1.2Kfastwrite · 732fastwrite · 2.2KScienceOS · 79.4KScienceOS · 75.1KScienceOS · 79.7KScienceOS · 64.1KScienceOS · 64.5KScienceOS · 56.4KScienceOS · 70.5KScienceOS · 69.2KScienceOS · 64.9KThesisAI · 182KThesisAI · 198.7KThesisAI · 183.2KThesisAI · 190.5KThesisAI · 213.5KThesisAI · 209.3KThesisAI · 188.9KThesisAI · 234.5KThesisAI · 219.8KThesisAI · 204.8K1001K10K100K1Mfastwrite · 3.8Kfastwrite · 12.3Kfastwrite · 4.4Kfastwrite · 3.6Kfastwrite · 5.4Kfastwrite · 1.5Kfastwrite · 1.2Kfastwrite · 732fastwrite · 2.2KScienceOS · 79.4KScienceOS · 75.1KScienceOS · 79.7KScienceOS · 64.1KScienceOS · 64.5KScienceOS · 56.4KScienceOS · 70.5KScienceOS · 69.2KScienceOS · 64.9KThesisAI · 182KThesisAI · 198.7KThesisAI · 183.2KThesisAI · 190.5KThesisAI · 213.5KThesisAI · 209.3KThesisAI · 188.9KThesisAI · 234.5KThesisAI · 219.8KThesisAI · 204.8KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Paid
Starting price
€22per month · free tier available
$15per month · free tier available
€7.25per month · free tier available
$12per month
Free tier
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Free trial
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API access
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Plans
Free FreePremium €22/moUltimate €35/mo
Free FreePro $16/moTeam $15/moEnterprise Custom
Free FreeAngel €7.25/moTeam €6/moInstitution Custom
Basic $12/moPro $16/mo
Capabilities input → output
Input
DocumentsText
Text
DocumentsText
DocumentsText
Output
Text
DataText
DataText
Documents
Skill level
Beginner-friendly
Intermediate
Intermediate
Beginner-friendly
Categories
Productivity & OfficeResearch & AnalyticsWriting & ContentAI Essay Writer+3 more
Research & AnalyticsAI Research PapersAI Research Tool
Research & AnalyticsAI Research PapersAI Research Tool
Research & AnalyticsWriting & ContentAI Essay WriterAI Research Papers
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
8
11
8
11
Research
Citations
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Research papers
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Academic citation
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Academic writing
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Academic research
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Literature analysis
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Research papers analysis
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Scientific literature exploration
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Scientific writing
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Literature reviews
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Scientific q a
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Thesis drafts
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Essay feedback
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PDF analysis
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Research assistance
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Scientific research
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Thesis preparation
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Writing
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Essay writing
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Network diagrams
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PDFs
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Research trends tracking
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.