Diglot vs Paperpal
Paperpal cleans up English you have already written. Diglot gets you there from the sentence you think in your own language, then proves you wrote it.
- You think in Mandarin, Spanish, or Arabic and want the fix explained, not just marked
- You’d rather draft, translate, and revise in one document than juggle panels
- You need to show a journal or committee that the writing is yours
- You want the academic words you wrestled with to resurface as review later
No credit card required · Your text opens in the editor after sign-up
Example from the comparison below. Your own text gets its own suggestions.
Draft in your language, finish in English
Every Paperpal surface works on English that already exists. Diglot starts from the language you think in and records how the draft was made.
- Write the hard paragraph in Spanish, Mandarin or Arabic and turn it into English in the same document.
- Grammar, rewrites and translation share one editor, so nothing is copied between panels.
- Your drafting is recorded for a free Authorship Certificate a journal or committee can check.
Citation integrity
Catch uncited claims before you submit
/citation-gaps marks sentences that claim something without a source. /find-source suggests papers, and /check-sources confirms each DOI resolves.
- Uncited claims highlighted in the text
- Suggested papers with DOIs
- Add the citation in place
Cowriter
Rewrite a whole section and approve every edit
Ask Cowriter to make a section clearer, more formal or tighter. Removed words show in red, new ones in green, and nothing changes until you accept.
- 30+ skills, from /formalize to /refute
- Accept all, or review one edit at a time
- Explains what it changed and why
One window instead of five tabs and five bills
Before: five tabs
- Jenni AIAutocomplete and citations, but no help with a second language.~$20Unlimited, monthly
- DeepL ProTranslates outside your document, so citations and tone are lost.~$8.74from, monthly
- QuillBot PremiumRewrites one paragraph at a time in a separate tab.$19.95monthly
- Grammarly ProFixes the sentence without naming the first-language habit behind it.~$12per month, billed yearly
- ChatGPT PlusRewrites in its own voice and can invent references.$20monthly
If you pay for all five~$81/ month
After: one Diglot document
- Drafting, autocomplete and citations
- Translation inside the document
- Rewrites in five tones
- Grammar that names your first-language habits
- Cowriter with 30+ skills, every edit waiting for you
- Your PDFs, your glossary and a free Authorship Certificate
Publicly listed prices: Jenni AI verified 2026-07-18; DeepL, QuillBot and Grammarly verified 2026-04-13; ChatGPT Plus as listed by OpenAI. Prices change, so check each vendor before you buy.
Try a skill on a real paragraph
Your draft
Many researches shows that students which use social media more than three hours per day have lower grades. In our opinion this is because the constant notifications make difficult to concentrate, so the information is not stay in the memory.
We propose to migrate our reporting to the new platform in Q1. This will reduce costs a lot and the team will be more productive, because the old system is very slow and nobody likes it.
We are very sorry for the delay, it was not our fault but the supplier one. We will try to send you the goods until Friday, please be patient with us and don’t cancel the order.
Cowriter /formalize · Fluent AI
Many studies show that students who use social media for more than three hours per day have lower grades. We believe this is because constant notifications make it difficult to concentrate, so information does not stay in memory.
Example output written for this page to show the difference between AI tiers; real results depend on your text. Fluent AI is on Free, Native AI on Pro.
Every citation leads back to a real page and a real DOI
Your paragraph
The Transformer replaced recurrence with attention alone , and pre-trained encoders such as BERT carried the idea to language understanding . Attention mechanisms first improved neural machine translation .
References
- Vaswani, A., Shazeer, N., Parmar, N., Uszkoreit, J., Jones, L., Gomez, A. N., Kaiser, Ł., & Polosukhin, I. (2017). Attention is all you need. arXiv. https://doi.org/10.48550/arXiv.1706.03762
- Devlin, J., Chang, M.-W., Lee, K., & Toutanova, K. (2019). BERT: Pre-training of deep bidirectional transformers for language understanding. Proceedings of NAACL-HLT. https://doi.org/10.18653/v1/N19-1423
Your library · p. 1, abstract
We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely.
DOI resolves · 10.48550/arXiv.1706.03762
Example built from real papers and DOIs. In the editor, /library answers from the PDFs you upload, /check-sources looks each DOI up, and /find-source suggests papers for an uncited claim.
The slips your first language puts in your English
Thank you for your comprehensionThank you for your understanding
“Comprensión” is a false friend: in English it is “understanding”.
Actually, we use the old systemCurrently, we use the old system
“Actualmente” means “currently”, not “actually”.
I assisted to the conferenceI attended the conference
“Asistir a” means to attend; “assist” means to help.
temperature of samplethe temperature of the sample
Your language has no articles; English needs “the” here.
We discussed about the resultsWe discussed the results
“Обсуждать” takes a preposition; “discuss” does not.
It depends of many factorsIt depends on many factors
A calque of “зависит от”: English uses “depend on”.
Joined Sony 2020I joined Sony in 2020
Your language drops the subject; English needs it.
Yesterday I go to the clientYesterday I went to the client
The verb does not change for tense in Mandarin; English marks the past.
Sorry to bother you, if possible maybe could you send itCould you send it?
Layered politeness reads as unsure in English business writing.
He is having two carsHe has two cars
“Have” for ownership does not take the -ing form.
I am agree with the planI agree with the plan
“Agree” is already a verb; it needs no “am”.
Please do the needfulPlease take care of it
Common in Indian English, unclear to readers elsewhere.
I work here since three yearsI have worked here for three years
“Seit / depuis” becomes “for” with the present perfect.
We have discussed it yesterdayWe discussed it yesterday
A finished time like “yesterday” takes the past simple.
We will eventually postpone the launchWe may postpone the launch
“Eventuell / éventuellement” means “possibly”, not “in the end”.
Typical slips for each language group. Diglot flags them in your own draft and explains the habit behind each one.
A signed record of how the document was written
The certificate PDF Diglot issues, filled with sample data. A real one carries a QR code and a live verification link.
- Session 1 · Outline and notes22 min
- Session 2 · Drafting, two languages, 4 citations48 min
- Session 3 · Cowriter /formalize and grammar review15 min
- Certificate exported with a verification linkfree
- Example timeline. Writing the whole document in Diglot is what gives the record its weight: a pasted paragraph shows up as a paste.
Feature-by-feature comparison
| Feature | Paperpal | Diglot |
|---|---|---|
| Bilingual spine (think in L1, draft English in the same editor) | No — translation is a side feature; output is English-only | Native — L1 → English is the primary workflow |
| Native-language grounding (explain feedback in your L1) | ✗ | Yes — synonyms and answers glossed in the writer’s language |
| Citation scale Paperpal names a 250M-article corpus; OpenAlex alone indexes a comparable number of works. | 250M+ articles, 10k+ styles | 10,852 CSL styles + search across nine scholarly indexes (OpenAlex, Semantic Scholar, Crossref, PubMed, Europe PMC, arXiv, ERIC, DOAJ, OpenAIRE) |
| Plagiarism engine | Turnitin-backed similarity | ✗ |
| Human expert editing inside the tool | Yes — 1,500+ Editage editors | ✗ |
| Authorship Certificate (cryptographic proof you wrote it) | ✗ | Included on all plans |
| Vocabulary learn-back (words you struggled with return as review) | ✗ | Yes — captured into spaced-repetition review |
Pricing
One connected writing workspace instead of paying for 4 separate subscriptions.
QuillBot ($19.95) + DeepL ($8.74) + Grammarly ($12) + Jenni ($20) = $60.69 – $81 / mo
From $15.83 / mo Save 76% ($62/mo)
Paperpal
Single-purpose utility- Free $0 daily caps
- Prime ~$25 / month, monthly
- Prime ~$11.58 / month, $139 a year
- Bilingual spine No — translation is a side feature; output is English-only
- Native-language grounding — not included
- Citation scale 250M+ articles, 10k+ styles
- Plagiarism engine Turnitin-backed similarity
- Human expert editing inside the tool Yes — 1,500+ Editage editors
- Authorship Certificate — not included
Diglot
Complete Writing Workspace- Free$0 no card needed
- 500 words / day paraphrase
- 3,000 words / mo translation
- 10 Cowriter messages / day
- 1 Deep Research report / mo
- Authorship Certificate included
- Save 76% · Most PopularSpark$15.83 / mo, billed $190/yr $19 / month
- 30,000 words paraphrase & rewrite / mo
- 50,000 words translation · Smart AI
- 1,000 Cowriter msgs (35 skills)
- 5 Deep Research reports / mo
- 10,852 citation styles & PDF upload
- Native AI TierPro$28.33 / mo, billed $340/yr $34 / month
- Native-tier AI (publication quality)
- 50,000 words paraphrase / mo
- 100,000 words translation / mo
- 2,000 Cowriter msgs · cross-session recall
- 30 Deep Research reports / mo
Flexible on-demand word packs — no forced tier upgrades
Working on a thesis deadline or heavy paper submission? Add extra volume on demand without changing subscription tiers: +40,000 word packs ($15) and Deep Research packs are available anytime directly inside your workspace.
Pricing verified 2026-07-18. Public pricing changes — confirm on each vendor's site before purchase.
Where Paperpal ends and Diglot begins
Editage’s academic writing suite: grammar, citations, Turnitin-backed plagiarism, Chat-PDF, and human editors behind it.
Let’s not pretend otherwise: Paperpal has the deeper academic toolkit. It comes from Editage (Cactus Communications), which has spent 23+ years editing researchers’ manuscripts, and it shows — 4M+ users, coverage across 1,500+ journals, Turnitin-backed plagiarism, Chat-PDF, a 250M-article citation corpus, and human editors you can actually hand a draft to. Diglot doesn’t try to beat that on feature-count. It plays a different position. Paperpal cleans up the English once you’ve written it; Diglot helps you get there — from the sentence as you think it in Mandarin to the sentence a journal will accept — then hands you proof you did the writing yourself.
What Paperpal sells
- AI academic writing across Word, Google Docs, Chrome, and Overleaf
- Grammar, paraphrase, word reduction, and academic-language checks
- Turnitin-backed plagiarism + AI-content detection
- Citation generator (250M+ articles, 10k+ styles) + Chat-PDF research
- Human editing (1,500+ Editage experts) and 30+ pre-submission checks
Why Paperpal wins
- Academic pedigree and journal trust — Editage brand, 1,500+ journals
- Human-in-the-loop editing moat that is structurally hard to copy
- Research backend on R Discovery’s 250M-publication index
- Full distribution: Word, Google Docs, Chrome, Overleaf all live
- Citation scale and submission-readiness depth Diglot has not built yet
Paperpal wins when
- You need Turnitin-backed similarity and thousands of citation styles now
- You want a human Editage editor to touch the manuscript, not software alone
- Your writing already lives in Word, Google Docs, or Overleaf
- Your English is already solid and you just want it tightened
Deep dive: polishing English vs producing it
Everything Paperpal does well — Improve Fluency, Make Academic, Simplify, Synonyms — runs on English that’s already written. For a native-English researcher, that might be the whole job: the idea is in English, and all that’s left is to sharpen it. For an ESL researcher, that’s the easy part. The hard part happened one step earlier — carrying a fully-formed argument out of Mandarin or Spanish and into precise academic English. Paperpal starts its clock after that carry is done.
Diglot starts before it. Your source language stays anchored in view while you draft the English, and each passage offers literal, idiomatic, and formal renderings so you pick the register on purpose instead of by accident. When something is off, the correction carries its reason — the Mandarin speaker’s dropped article, the flattened tense — rather than a bare red line. Paperpal’s 23 years of academic depth are real. The bilingual comprehension layer it never built is the space Diglot occupies.
The other gap is proof. Journals and universities are leaning harder on AI detectors, and those detectors misfire on non-native English more often than on native English — so “did a person write this?” is a question ESL researchers get asked first. Paperpal has no answer to it. Diglot’s Authorship Certificate records the writing as it happens into a tamper-evident chain you can show later. That is not polish. It is evidence, and Paperpal produces none.
Frequently asked questions
Is Diglot a Paperpal alternative for ESL researchers?
Yes — with a caveat I’ll say plainly. On academic features, Paperpal is ahead: a bigger citation corpus, Turnitin-backed plagiarism, human editors from Editage. Reach for it if that depth is what you’re missing. Reach for Diglot if your real bottleneck is turning a thought you had in Mandarin or Arabic into publishable English — and if you want a record that you wrote it. Different problems. Paperpal owns the polishing; Diglot owns the bilingual drafting and the proof.
Does Diglot match Paperpal on citations and plagiarism?
No, and I won’t pretend it does. Paperpal sits on a 250M-article index with 10,000+ citation styles and Turnitin-backed similarity. Diglot ships 6 core citation styles on a free Crossref and Semantic Scholar tier, and does not offer plagiarism checking yet. If citation breadth and Turnitin-class checks decide it for you, pick Paperpal. Judge Diglot on the bilingual work instead.
What can Diglot do that Paperpal cannot?
Three things Paperpal isn’t built for. It can explain a correction in your first language — why a Chinese speaker dropped the article, not merely that it’s missing. It treats translation as the spine of the editor rather than a side panel, so you draft from your language and revise in English in one place. And it issues an Authorship Certificate: a signed, time-ordered log of how the document was written. Paperpal’s output is English-only and keeps no record of process.
Is Paperpal cheaper than Diglot?
Billed yearly, yes — Paperpal Prime works out to about $11.58/mo, versus Diglot Pro at $28.33/mo. Paperpal’s free tier also leans on tight per-feature daily caps. Diglot costs more on purpose: the price covers the bilingual editor, first-language grounding, and authorship proof, not English polishing alone. Whether that’s worth it comes down to whether the L1 gap is your real problem.
Can I use both Paperpal and Diglot?
Sure, and some researchers do while they transition: Paperpal for its citation corpus and Turnitin-class plagiarism, Diglot for the bilingual drafting and the certificate. Nothing about them collides. What tends to happen is that once the first-language-to-English step is handled inside Diglot, people do most of the writing there and open Paperpal only when they need the big citation index.
Sound like you? Try Diglot free.
If «you think in mandarin, spanish, or arabic and want the fix explained, not just marked» describes your work, the free tier covers daily writing — no card.
No credit card required
Where to go next
Paperpal is one tool against Diglot. The picks below frame the decision against similar tools, your real workflow, and the broader category.
