ProsePen

Transparent Pricing in Naira

Start Free. Upgrade for Heavy Academic Deliverables.

Pay by card, bank transfer, or USSD. Rewriting is charged by the word, whole-document checks by a small fixed price, and the price is shown before you run anything. Redo the same text within 30 minutes and it is free. Unused coins roll over while your plan is active.

New accounts receive 1,500 coins + a Pro 3-day trial automatically.

Deadline Sprint

7-Day Project Sprint

Designed for single essays, thesis revisions, and short project turnarounds.

₦4,500/ 7 days
Concurrency:1 Device
  • 25,000 Coins included
  • 1 Active Device
  • Originality check & AI detector
  • Stealth Humanizer (Levels 1–4)
  • Academic Proofreader & Tone Refactor
  • Cloud Document Vault (10 docs)
  • PDF & Document Converters (100 MB)
Most Popular
Duo Workspace

Pro Scholar (Monthly)

For students and writers who want full AI humanizing, unlimited desk audits, and sovereign proofreading.

₦9,500/ month
Concurrency:2 Devices (Duo Laptop + Phone)
  • 80,000 Coins per month (Rollover)
  • 2 Active Devices (PC + Mobile)
  • Everything in Sprint
  • Reference, quotation and assignment-brief checks
  • Cloud Document Vault (Unlimited)
  • Inline Desk AI Copilot
  • 30-minute 0-Coin Free Revision Window
  • Developer API Key Access
Thesis & Postgrad

Academic Master (Monthly)

Master's and PhD scholars needing full dissertation automation, Prelims TOC, and 300 MB file limits.

₦22,500/ month
Concurrency:4 Devices (Study Group)
  • 250,000 Coins per month (Rollover)
  • Up to 4 devices signed in at once
  • Full 5-Chapter Thesis & Dissertation Formatter (.docx)
  • Automated Roman Prelims & Table of Contents
  • Every reference compared with its Crossref record
  • Humanizer Level 5 (deepest rewrite)
  • 300 MB File Limits (Full Book Scans & 4K Video)
Lab & Faculty

Research Team / Lab

For research labs, university departments, and collaborative research teams.

₦75,000/ month
Concurrency:10 Active Devices
  • 1,000,000 coins on one shared account
  • Up to 10 devices signed in at once
  • Everything in Academic Master
  • Developer API keys for scripts and tools

Coin Top-Up Packs

Running a large 80,000-word dissertation or batch processing books? Top up extra coins anytime. Coins never expire while your plan is active.

Prices shown before every run

Starter Pack

15,000 Coins

₦2,500

Best Value

Scholar Pack

50,000 Coins

₦6,500

Thesis Pack

120,000 Coins

₦12,500

Researcher Pack

500,000 Coins

₦45,000

Enterprise Lab Pack

1,000,000 Coins

₦75,000

Word Count Guarantee

If an AI chapter falls short of your target word count, an automatic analytical expansion pass deepens the critical arguments.

30-Min Revision Grace

Output variations, tone adjustments, and fixes on already generated text cost 0 Coins within 30 minutes.

Frictionless Concurrency

Never locked out when changing devices. Logging into mobile seamlessly transfers active generation rights from your laptop.

What will I actually need?

Tell us how you write. We add up the coins and show the cheapest way to cover them. Grammar, citations, references, numbers, tone and structure checks are always free.

  • Originality and machine-writing check (1 coin a word)8,000
  • 10 suggested fixes a document (about 118 coins each for a sentence)4,720
  • Assignment brief check (once per document)972

A month needs about13,692 coins

Cheapest cover: Starter Pack (15,000 Coins), ₦2,500 for 15,000 coins.

For comparison

Published prices when we checked in October 2026, in US dollars. They change, so confirm on each company’s own page.

  • Grammarly Premium: US$12 a month billed yearly, US$30 billed monthly
  • QuillBot Premium: US$8.33 a month billed yearly, US$19.95 billed monthly
  • Copyleaks AI and plagiarism: US$13.99 a month per user
  • Together, on yearly billing: about US$34.32 a month, as three separate subscriptions.